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1483 Commits

Author SHA1 Message Date
Josh Wolfe
a260cfa4dd Merge remote-tracking branch 'origin/c-to-zig' into c-to-zig 2017-09-01 11:42:48 -07:00
Josh Wolfe
0d0fffe4d2 start implementing variable declaration translation 2017-09-01 11:39:48 -07:00
Andrew Kelley
80d75cf3bf here, have trans_qual_type 2017-09-01 14:39:17 -04:00
Andrew Kelley
60bdbe5405 parseh: emit_warning takes SourceLocation 2017-09-01 13:39:16 -04:00
Josh Wolfe
1449e71de8 cleanup whitespace 2017-09-01 10:27:04 -07:00
Andrew Kelley
46e9d9df51 c-to-zig: less than, negation, ternary 2017-09-01 04:38:57 -04:00
Andrew Kelley
ee9d1d0414 c-to-zig: return statement 2017-09-01 03:16:35 -04:00
Raul Leal
e93ece7514 Opaque ptr patch 2017-08-31 18:01:09 -04:00
Andrew Kelley
c42e809f13 setEvalBranchQuota must be called from top of comptime stack 2017-08-31 16:54:20 -04:00
Andrew Kelley
67b6dd28ec allow array literals to have size and fix comptime bug 2017-08-31 16:30:46 -04:00
Andrew Kelley
eb0979189b add windows to test targets 
cross-compiling hello world with no libc for windows is working
 2017-08-31 11:41:58 -04:00
Andrew Kelley
021155db5b successfully cross-building behavior tests for windows 2017-08-30 17:01:14 -04:00
Andrew Kelley
97013951dd tests use darwin, not macosx since that's what macbook reports as 2017-08-30 15:15:14 -04:00
Andrew Kelley
0e9bdb44a6 test suite cross-compile builds tests for other targets 2017-08-30 14:55:26 -04:00
Andrew Kelley
052b4ae941 align syntax: align(4) instead of align 4 
closes #37
 2017-08-30 04:54:33 -04:00
Andrew Kelley
3f5dd08ca8 codegen: all stores specify align value 
See #37
 2017-08-30 04:23:52 -04:00
Andrew Kelley
849f65332d set alignment on all loads and globals 
See #37
 2017-08-30 03:43:51 -04:00
Andrew Kelley
e9280c86a1 compile error for not-aligned-enough pointer to cmpxchg 
See #37
 2017-08-30 02:56:42 -04:00
Andrew Kelley
010b725bde add alignment field to pointer type 2017-08-30 02:41:27 -04:00
Andrew Kelley
5482f9f9e8 when getting an element pointer, use the best alignment 
type we can figure out is safe to use

See #37
 2017-08-30 02:25:41 -04:00
Andrew Kelley
56cc62a9c7 @ptrCast preserves larger alignment if applicable 
See #37
 2017-08-30 01:12:47 -04:00
Andrew Kelley
fa9006f8d1 generic functions can access comptime args in align value 
See #37
 2017-08-30 00:46:38 -04:00
Andrew Kelley
c2357830b4 add "child" field to pointer type 2017-08-30 00:17:11 -04:00
Andrew Kelley
898d65baa9 more alignment improvements 
* add alignment capability for fn protos
 * add @alignCast
 * fix some ast rendering code
 * fix some ir rendering code
 * add error for pointer cast increasing alignment
 * update allocators in std to correctly align

See #37
 2017-08-29 23:33:25 -04:00
Andrew Kelley
910a96f046 fix tests 2017-08-29 17:10:11 -04:00
Andrew Kelley
816689a3b1 ptrCast gives compile error for increasing alignment 
See #37
 2017-08-29 16:52:31 -04:00
Andrew Kelley
be94299666 prevent implicitly increasing pointer alignment 
See #37
 2017-08-29 15:19:15 -04:00
Andrew Kelley
8f682efbc5 pass all tests without triggering assertions 
fixes tests when targeting darwin
 2017-08-29 09:30:22 -04:00
Andrew Kelley
1116d82197 fix bitfield pointer syntax 
See #37
 2017-08-29 08:35:51 -04:00
Andrew Kelley
c5c9d98065 introduce align keyword 
* remove `@setGlobalAlign`
 * add align keyword for setting alignment on functions and
   variables.
 * loads and stores use alignment from pointer
 * memcpy, memset use alignment from pointer
 * add syntax for pointer alignment
 * slices can have volatile
 * add u2, i2 primitives
 * ignore preferred align and use abi align everywhere
 * back to only having alignOf builtin.
   preferredAlignOf is too tricky to be useful.
   See #432. Partial revert of
   e726925e80.

See #37
 2017-08-29 07:51:34 -04:00
Andrew Kelley
d7a539906d Merge branch 'embed-lld' 
Zig now depends on LLVM 5.0.0.

For the latest version that supports LLVM 4.0.1, use
2a49c876be.

Unfortunately we had to embed LLD into Zig due to some
MACH-O related LLD bugs. One of them is already upstream
and another is awaiting feedback on the llvm-dev mailing
list.

You can use cmake option -DZIG_FORCE_EXTERNAL_LLD=ON to
still use external LLD if you want to live with the MACH-O
bugs or if your system LLD is patched.

Closes #273
 2017-08-28 04:09:09 -04:00
Andrew Kelley
6c7e975b75 remove remnants of depending on darwin system linker 2017-08-28 03:31:57 -04:00
Andrew Kelley
ebdc6b594d all tests passing in MacOS 
depends on LLD 5.0.0 with 3 patches

See #273
 2017-08-27 17:16:42 -04:00
Andrew Kelley
5fd579a51c macos passing all tests except for building a shared library 
see #273
 2017-08-27 05:44:03 -04:00
Andrew Kelley
ff2c794612 all behavior tests passing for macos 
See #273
 2017-08-27 05:15:24 -04:00
Andrew Kelley
91536813ec macos updates 
* try some macos travis stuff
 * put c in the link libs for macos since we always link with libSystem
 * for non-native targets on macos, allow runtime symbol resolution
   - it's causing an infinite loop in LLD.
 * for macos, always build compiler_rt and turn on LinkOnce because
   compiler_rt on darwin is missing some stuff.
 2017-08-27 02:51:25 -04:00
Andrew Kelley
29a418c9d5 progress toward tests passing on MacOS 2017-08-27 00:11:09 -04:00
Andrew Kelley
2a49c876be audit alignment for functions 
see #37
 2017-08-26 15:20:39 -04:00
Andrew Kelley
a0ae575ff8 codegen for enums chooses best order of tag and union fields 
closes #396
 2017-08-26 14:25:52 -04:00
Andrew Kelley
40feecb3e4 fixups from previous commit 
See #396
 2017-08-26 13:51:51 -04:00
scurest
5bc877017e use most_aligned_member+padding to represent enum unions 2017-08-26 13:48:16 -04:00
Andrew Kelley
e726925e80 remove @alignOf and add @cAbiAlignOf and @preferredAlignOf 
See #396
 2017-08-26 13:29:24 -04:00
Andrew Kelley
3a4ea41fe8 add some asserts in switch analysis code 2017-08-26 13:06:13 -04:00
Andrew Kelley
2b8f98a52c fix wrong switch target type with enum from .h file 
fixes crash when else => unreachable is missing
 2017-08-26 12:23:12 -04:00
Andrew Kelley
105a09e1d6 fix invalid llvm IR for const enum 
closes #394
 2017-08-26 00:34:40 -04:00
Andrew Kelley
2bd6c60752 update for llvm 5.0.0rc1 2017-08-26 00:34:40 -04:00
Andrew Kelley
6aa04c422b float division by zero check only when FloatMode.Optimzed 
closes #395
 2017-08-25 20:44:32 -04:00
Andrew Kelley
db613d38f0 implement comptime bitcasting from array 2017-08-25 20:05:10 -04:00
Andrew Kelley
4d8269f69f fix some casts on const data causing segfault 2017-08-25 19:54:20 -04:00
Andrew Kelley
754f7809e3 refactor - codegen llvm functions lazily 2017-08-25 13:13:07 -04:00
Andrew Kelley
629aa10c56 unreachable still codegens to unreachable in ReleaseFast test mode 
closes #430
 2017-08-25 10:20:06 -04:00
Andrew Kelley
5dddb45ec7 fix compiler test errors 
closes #428

Thanks Marc Tiehuis for diagnosing this bug
 2017-08-22 11:54:58 -04:00
Andrew Kelley
0a922d3bca move docs to website 2017-08-20 17:30:02 -04:00
Andrew Kelley
d5271d1e49 more zen 2017-08-20 12:10:21 -04:00
Andrew Kelley
f248ef5f3f move zen of zig to a sub command 2017-08-20 04:25:42 -04:00
Andrew Kelley
d9dd50d74c fix not propagating parseh aliases through pub use decls 2017-08-20 04:03:36 -04:00
Andrew Kelley
09bd4a9a86 compile-time f32, f64 operations are now correctly lossy 
previously we used the bigfloat abstraction to do all
compile-time float math. but runtime code and comptime code
are supposed to get the same result. so now if you add a
f32 to a f32 at compile time it does it with f32 math
instead of the bigfloat. float literals still get the
bigfloat math.

closes #424
 2017-08-20 01:04:51 -04:00
Andrew Kelley
caaeab9882 add setEvalBranchQuota builtin function 2017-08-19 17:10:29 -04:00
Andrew Kelley
cd2f65ff6a add compile error for globally shadowing a primitive type 
closes #423
 2017-08-19 02:02:25 -04:00
Andrew Kelley
987768778a bit shifting safety 
* add u3, u4, u5, u6, u7 and i3, i4, i5, i6, i7
 * shift operations shift amount parameter type is
   integer with log2 bit width of other param
   - This enforces not violating undefined behavior on
     shift amount >= bit width with the type system
 * clean up math.log, math.ln, math.log2, math.log10

closes #403
 2017-08-19 01:43:43 -04:00
Andrew Kelley
0aa36e882e remove dependency on quadmath.h 2017-08-18 13:28:59 -04:00
Andrew Kelley
b73d4f74c2 depend on libquadmath 
it seems to be shipped with gcc and clang
 2017-08-18 13:13:03 -04:00
Andrew Kelley
e1c225694d cast between __float128 and double to fix build in some places 2017-08-18 12:43:48 -04:00
Andrew Kelley
3a762e5a8d make casting between __float128 and long double explicit 2017-08-18 12:37:01 -04:00
Andrew Kelley
1b5d61bee9 fix bitCast for big integers 
and make bigfloat use __float128
 2017-08-17 22:52:12 -04:00
Andrew Kelley
2173e1f457 fix big integer shifting by large number 2017-08-17 22:01:19 -04:00
Andrew Kelley
0d117bb0a9 fix wrong value for clz, ctz at compile time 
closes #418

also make clz, ctz return smaller integer bit widths
and use smaller integer bit widths for enum tag types
 2017-08-17 17:14:35 -04:00
Andrew Kelley
6a98bf3dba compiler_rt implementations for __fixuns* functions 
* add u128 and i128 integer types
 * add f128 floating point type
 * implement big integer multiplication (See #405)
 2017-08-16 19:07:35 -04:00
Andrew Kelley
cf46cd5f2b organize file path of compiler_rt 2017-08-15 07:16:22 -04:00
Andrew Kelley
dea90e20e6 fix tokenization error pointing to wrong character 
closes #401
 2017-08-14 13:28:42 -04:00
Andrew Kelley
35d3444e27 more intuitive left shift and right shift operators 
Before:
 * << is left shift, not allowed to shift 1 bits out
 * <<% is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out

After:
 * << is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out
 * @shlExact is left shift, not allowed to shift 1 bits out
 * @shrExact is right shift, not allowed to shift 1 bits out

Closes #413
 2017-08-09 10:09:38 -04:00
Andrew Kelley
54675b060a add ptrToInt builtin, remove usize(ptr) cast 
closes #415
 2017-08-08 17:38:25 -04:00
Andrew Kelley
2234788fa8 add ability to explicitly cast float to integer 
closes #414
 2017-08-07 15:57:41 -04:00
Marc Tiehuis
0705b711f8 Correct floating-point literal allowed ranges 
The exponent range for floating-point values is [-1022, 1023].

Fixes #399.
 2017-08-07 18:08:09 +12:00
Andrew Kelley
d8227c79a2 limit generated C preprocessor tokens to alphabet 
closes #407

The mangling strategy replaces bytes outside the alphabet
with "_xx_" where xx is the hex code of the byte.
 2017-08-06 19:31:05 -04:00
Andrew Kelley
d83e4092bf fix constant debug info when number literal is 0 2017-08-06 18:15:11 -04:00
Andrew Kelley
a0a57beed5 fix invalid target info 2017-08-06 18:14:46 -04:00
Andrew Kelley
f1b2735a2e fix segfault when var args fn proto shows up in ir printing 2017-08-06 18:14:17 -04:00
Andrew Kelley
ad9f48b74b fix initializing undefined and crash when casting to invalid type 
closes #408
 2017-08-05 16:54:50 -04:00
Andrew Kelley
f4b214c010 remove unused enum 2017-07-08 18:02:50 -04:00
Andrew Kelley
d1e68c3ca8 better bigint/bigfloat implementation 2017-07-08 17:59:10 -04:00
Andrew Kelley
c9fc8bd802 workaround for llvm bug 
See #393 for details
 2017-06-19 14:36:33 -04:00
scurest
1a63f27247 allow trailing commas 
closes #392
 2017-06-17 10:34:51 -04:00
Andrew Kelley
1566ca21c4 fix peer type resolution for array and error 
closes #388
 2017-06-17 10:29:04 -04:00
Andrew Kelley
c0f9012bed parseh: fix not recognizing integer suffixes on hex numbers 2017-06-16 14:34:38 -04:00
Andrew Kelley
865b53f286 fix alignOf builtin 
* fix assertion error when type is not yet complete
 * fix alignment value

closes #391
 2017-06-15 23:47:05 -04:00
Andrew Kelley
ae61e26680 fix compiler segfault on null ?? x 
closes #390
 2017-06-14 19:32:52 -04:00
Andrew Kelley
7f0620a20f partial implementation of printing floating point numbers with errol3 
also add bitCast builtin function. closes #387
 2017-06-14 00:24:25 -04:00
Andrew Kelley
6a93dda3e1 progress toward windows hello world working 2017-06-14 00:04:34 -04:00
Andrew Kelley
199bbb6292 progress toward hello world without libc in windows 2017-06-04 10:08:55 -04:00
Andrew Kelley
e5b90651ba compileError builtin includes "referenced by" notes 
to help track down the cause

closes #278
 2017-06-03 15:09:40 -04:00
Andrew Kelley
1ae2002b41 fix crash when writing to const hardcoded ptr 
closes #381
 2017-05-29 14:25:00 -04:00
Andrew Kelley
8ae4ffa493 fix crash when unwrapping optional field of global variable 
closes #379
 2017-05-29 14:08:39 -04:00
Andrew Kelley
2dfb1ebee2 const global values can reference each other 
Before, if you did something like:

```
const hi1 = "hi";
const hi2 = hi1;
```

This would create the "hi" data twice in the built object.
But since the value is const we don't have to duplicate the
data, now we take advantage of this fact.

closes #336
 2017-05-27 00:54:14 -04:00
Andrew Kelley
d6b01931ef implicitly cast by value var args parameters to const references 
See #336
 2017-05-26 16:44:13 -04:00
Andrew Kelley
c42c91ee7c fix segfault with array of generic functions 
closes #377
 2017-05-26 14:39:18 -04:00
Andrew Kelley
fcdd808c5c fix segfault with array of variadic functions 
closes #377
 2017-05-25 13:48:10 -04:00
Andrew Kelley
d8d45908fa building with mingw for windows 2017-05-23 00:26:12 -04:00
Andrew Kelley
1c8fee41c2 add compile error for goto leaving defer expression 
closes #284
 2017-05-21 10:59:09 -04:00
Andrew Kelley
9f3cca8615 add error for break/continue exiting defer expression 
See #284
 2017-05-21 10:44:55 -04:00
Andrew Kelley
1c6f415a64 fix compiler crash when indexing types 
closes #376
 2017-05-21 09:50:15 -04:00
Andrew Kelley
565ac3e27a flip the enum order of FloatMode 2017-05-20 23:26:39 -04:00
Andrew Kelley
29b488245d add setFloatMode builtin and std.math.floor 
* skip installing std/rand_test.zig as it's not needed beyond running
   the std lib tests
 * add std.math.floor function
 * add setFloatMode builtin function to choose between
   builtin.FloatMode.Optimized (default) and builtin.FloatMode.Strict
   (Optimized is equivalent to -ffast-math in gcc)
 2017-05-20 23:06:32 -04:00
Andrew Kelley
051ee8e626 change slicing syntax from ... to .. 
See #359
 2017-05-19 10:39:59 -04:00
Andrew Kelley
b483db4868 typeId builtin instead of isInteger, isFloat, etc 
closes #373
 2017-05-17 12:26:35 -04:00
Andrew Kelley
9851a943ed add compile error for compile-time integer cast truncating bits 
closes #371
 2017-05-16 17:04:35 -04:00
Andrew Kelley
f375063917 fix printf format specifier 2017-05-16 10:19:35 -04:00
Andrew Kelley
a7570186eb add compile error for comptime division by zero 
closes #372
 2017-05-14 13:07:45 -04:00
Andrew Kelley
63f6676fee add compile error for casting negative value to... 
...unsigned integer at compile-time
 2017-05-10 00:21:27 -04:00
Andrew Kelley
6237411716 inline function call with builtin function instead... 
...of special syntax.

partially reverts 41144a8566

closes #306
 2017-05-09 22:54:23 -04:00
Andrew Kelley
01f066de37 ability to slice ptr to hard coded integer at comptime 
closes #369
 2017-05-09 22:23:38 -04:00
Andrew Kelley
2f20fe6ecd delete @generatedCode builtin function 
good riddance
 2017-05-07 23:25:36 -04:00
Andrew Kelley
5774b48ceb rename c_long_double to c_longdouble 
to be consistent with other c primitive type names
 2017-05-07 19:51:44 -04:00
Andrew Kelley
e485af94d4 fix inability to initialize global pointer to global array element 
closes #366
 2017-05-07 18:09:45 -04:00
Andrew Kelley
7261cd19b7 detect duplicate switch value even when else prong present 
closes #43
 2017-05-07 13:40:35 -04:00
Andrew Kelley
11d8a8cc7b fix comptime switch on enum with ref payload 
See #43
 2017-05-07 13:21:53 -04:00
Andrew Kelley
818a0a2629 switch expression - add compile errors 
* for duplicate integer value
   * for missing integer values
   * for missing else prong

see #43
 2017-05-07 12:07:35 -04:00
Andrew Kelley
29beb603b7 allow division and remainder operators sometimes 
when the values are comptime known and the result would be the same,
allow `/` and `%` for signed integers and floats.

closes #365
 2017-05-06 23:59:57 -04:00
Andrew Kelley
157af4332a builtin functions for division and remainder division 
* add `@divTrunc` and `@divFloor` functions
 * add `@rem` and `@mod` functions
 * add compile error for `/` and `%` with signed integers
 * add `.bit_count` for float primitive types

closes #217
 2017-05-06 23:13:12 -04:00
Andrew Kelley
866c841dd8 add compile error when unable to inline a function 
See #38
 2017-05-04 15:11:24 -04:00
Andrew Kelley
b6a679c0ed implement else on loops and break can give an expression 
closes #357
 2017-05-04 12:43:11 -04:00
Andrew Kelley
20b1491e6b implement while for nullables and error unions 
See #357
 2017-05-04 10:28:00 -04:00
Andrew Kelley
698829b772 change while syntax 
Old:

```
while (condition; expression) {}
```

New:

```
while (condition) : (expression) {}
```

This is in preparation to allow nullable and
error union types as the condition. See #357
 2017-05-03 18:12:07 -04:00
Andrew Kelley
644ea2dde9 remove test and try expressions in favor of if expressions 
See #357
 2017-05-03 17:23:11 -04:00
Andrew Kelley
0940d46c01 add compile error for shadowing variable 
closes #360
 2017-05-03 16:13:57 -04:00
Andrew Kelley
6756c27ca4 zig build: cache_root is relative to build_root 2017-05-03 16:13:57 -04:00
Andrew Kelley
f69d28a087 fix debug info for nullable type 2017-05-02 18:21:55 -04:00
Andrew Kelley
24a9a42966 add safe release build mode 
closes #288
 2017-05-02 17:34:21 -04:00
Andrew Kelley
7c236f6dd8 fix compiler crash when referencing a variable... 
...in an if after an if in the 2nd switch prong

closes #355
 2017-05-02 12:59:09 -04:00
Andrew Kelley
9f92042da9 allow undefined to be resolved with other types 
closes #295
 2017-05-01 22:37:34 -04:00
Andrew Kelley
cff5358f60 make debug safety stuff lazy 2017-05-01 19:16:48 -04:00
Andrew Kelley
3cbd0065fa basic support for specifying packages at the command line 
See #226
 2017-05-01 16:35:10 -04:00
Andrew Kelley
17b935325e @import("builtin") instead of @compileVar 
See #226
Closes #220
 2017-05-01 13:12:38 -04:00
Andrew Kelley
363d9038c9 zig build: organize build artifacts 
closes #328
 2017-04-30 18:56:24 -04:00
Andrew Kelley
43e7ac8418 add peer type resolution []T and [0]T 
closes #349

also fix slicing const array to be []const T instead of []T
 2017-04-30 12:21:24 -04:00
Andrew Kelley
29defd705d back to AT&T syntax for assembly 
this reverts 5c04730534.

sadly the quality of the intel dialect in llvm's assembly
parser has many frustrating bugs, and generally has unfortunate
syntax.

the plan is to use AT&T for now since it at least works,
and eventually zig will have its own assembly parser for
x86 and it will be as close to NASM as possible.
 2017-04-30 11:28:11 -04:00
Andrew Kelley
cbfe4b4bae add implicit cast from [0]T to %[]T 
closes #347

also add std.os.path.relative
 2017-04-29 19:23:33 -04:00
Andrew Kelley
a147f06585 zig puts temporary object files in zig-cache folder 
See #298
 2017-04-28 02:22:12 -04:00
Andrew Kelley
458afb0ef9 phi instruction retains stack ptr hint 2017-04-27 23:40:43 -04:00
Andrew Kelley
2e512a0e6e add compile error for returning local variable address 
closes #344
 2017-04-27 19:40:35 -04:00
Andrew Kelley
1691074b4b add no-elim-base-pointer to __zig_fail function 
fixes missing frame for unwrapping an error

closes #345
 2017-04-27 18:40:17 -04:00
Andrew Kelley
7e11ef79d6 zig test no longer requires a separate test_runner.o file 
See #298
 2017-04-27 16:19:20 -04:00
Andrew Kelley
7b0542d08b build system: consolidate duplicate code and more 
* add ability to add assembly files when building an exe, obj, or lib
 * add implicit cast from `[N]T` to `?[]const T` (closes #343)
 * remove link_exe and link_lib in favor of allowing build_exe and
   build_lib support no root zig source file
 2017-04-26 19:17:05 -04:00
Andrew Kelley
afa80da857 revert the last 3 compile time improvements 
they introduced complexity into the compiler and didn't
really help.

This reverts commit efa771af75.
This reverts commit 8614397110.
This reverts commit 13c6a58a61.
 2017-04-25 17:14:22 -04:00
Andrew Kelley
13c6a58a61 compile time improvement - move bounds checking to function calls 
once again this barely had an effect:

Before:

./build size: 1.3 MB
hello.zig size: 301 KB
full test: 1m31.253s
debug test: 19.607s
hello.zig timing:
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0002
   Semantic Analysis      0.0000      0.0431      0.0431      0.2262
     Code Generation      0.0431      0.0660      0.0229      0.1201
    LLVM Emit Object      0.0660      0.1765      0.1105      0.5795
  Build Dependencies      0.1765      0.1890      0.0125      0.0655
           LLVM Link      0.1890      0.1906      0.0016      0.0086
         Generate .h      0.1906      0.1906      0.0000      0.0000
               Total      0.0000      0.1906      0.1906      1.0000

After:

./build size: 1.3 MB
hello.zig size: 300 KB
full test: 1m31.882s
debug test: 19.569s
hello.zig timing:
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0002
   Semantic Analysis      0.0000      0.0425      0.0424      0.2228
     Code Generation      0.0425      0.0661      0.0236      0.1239
    LLVM Emit Object      0.0661      0.1762      0.1101      0.5782
  Build Dependencies      0.1762      0.1888      0.0126      0.0664
           LLVM Link      0.1888      0.1905      0.0016      0.0085
         Generate .h      0.1905      0.1905      0.0000      0.0000
               Total      0.0000      0.1905      0.1905      1.0000
 2017-04-25 16:53:22 -04:00
Andrew Kelley
8614397110 compile time improvement - move overflow math safety to fns 
move some boilerplate code having to do with overflow math safety
to functions.

Again the timing difference is not much:

Before:

./build size: 1.3 MB
hello.zig size: 308 KB
full test:  1m33.588s
debug test: 20.303s
hello.zig timing:
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0002
   Semantic Analysis      0.0000      0.0425      0.0425      0.2202
     Code Generation      0.0425      0.0675      0.0250      0.1293
    LLVM Emit Object      0.0675      0.1789      0.1114      0.5773
  Build Dependencies      0.1789      0.1913      0.0124      0.0640
           LLVM Link      0.1913      0.1931      0.0018      0.0091
         Generate .h      0.1931      0.1931      0.0000      0.0000
               Total      0.0000      0.1931      0.1931      1.0000

After:

./build size: 1.3 MB
hello.zig size: 301 KB
full test: 1m31.253s
debug test: 19.607s
hello.zig timing:
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0002
   Semantic Analysis      0.0000      0.0431      0.0431      0.2262
     Code Generation      0.0431      0.0660      0.0229      0.1201
    LLVM Emit Object      0.0660      0.1765      0.1105      0.5795
  Build Dependencies      0.1765      0.1890      0.0125      0.0655
           LLVM Link      0.1890      0.1906      0.0016      0.0086
         Generate .h      0.1906      0.1906      0.0000      0.0000
               Total      0.0000      0.1906      0.1906      1.0000
 2017-04-25 15:37:56 -04:00
Andrew Kelley
efa771af75 compile time improvement - add __zig_panic_slice fn 
move some boilerplate code having to do with panicking
to a function.

Here's the timing difference. It's not much:

Before:

full test:  1m36.511s
debug test: 20.862s
hello.zig
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0001
   Semantic Analysis      0.0000      0.0421      0.0420      0.2109
     Code Generation      0.0421      0.0620      0.0200      0.1003
    LLVM Emit Object      0.0620      0.1852      0.1231      0.6180
  Build Dependencies      0.1852      0.1974      0.0122      0.0615
           LLVM Link      0.1974      0.1993      0.0018      0.0093
         Generate .h      0.1993      0.1993      0.0000      0.0000
               Total      0.0000      0.1993      0.1993      1.0000

After:

full test:  1m33.588s
debug test: 20.303s
hello.zig
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0002
   Semantic Analysis      0.0000      0.0425      0.0425      0.2202
     Code Generation      0.0425      0.0675      0.0250      0.1293
    LLVM Emit Object      0.0675      0.1789      0.1114      0.5773
  Build Dependencies      0.1789      0.1913      0.0124      0.0640
           LLVM Link      0.1913      0.1931      0.0018      0.0091
         Generate .h      0.1931      0.1931      0.0000      0.0000
               Total      0.0000      0.1931      0.1931      1.0000
 2017-04-25 14:20:15 -04:00
Andrew Kelley
e0050af293 add some timing diagnostics 
pass --enable-timing-info to print a nice table like this:

```
                Name       Start         End    Duration     Percent
          Initialize      0.0000      0.0000      0.0000      0.0001
   Semantic Analysis      0.0000      0.0421      0.0420      0.2109
     Code Generation      0.0421      0.0620      0.0200      0.1003
    LLVM Emit Object      0.0620      0.1852      0.1231      0.6180
  Build Dependencies      0.1852      0.1974      0.0122      0.0615
           LLVM Link      0.1974      0.1993      0.0018      0.0093
         Generate .h      0.1993      0.1993      0.0000      0.0000
               Total      0.0000      0.1993      0.1993      1.0000
```
 2017-04-25 12:29:25 -04:00
Andrew Kelley
245eed8afe better stack traces for ELF x86_64 2017-04-24 12:14:45 -04:00
Josh Wolfe
08a871f625 defer requires expr to be void. closes #341 2017-04-23 22:33:06 -07:00
Josh Wolfe
ac7971122d fix check-statement-is-void. add tests 
see #291
 2017-04-23 21:50:34 -07:00
Josh Wolfe
c6605cba83 blocks check that their statements are void 
closes #291

This changes the error message "return value ignored" to "expression value is ignored".
This is because this error also applies to {1;}, which has no function calls.

Also fix ignored expression values in std and test.
This caught a bug in debug.readAllocBytes where an early Eof error would have been missed.
See #219.
 2017-04-23 21:15:15 -07:00
Andrew Kelley
6de33ded81 make undefined as a constant value lazy 
closes #268
 2017-04-23 14:34:40 -04:00
Josh Wolfe
2ed47070ef refactor ir_gen_block to make different return paths more clear 2017-04-23 09:04:15 -07:00
Josh Wolfe
14dfbd6ad3 remove redundant unreachable code error 2017-04-23 08:36:21 -07:00
Andrew Kelley
0f633167c5 fix crash when unwrapping error with no error decls 
closes #339
 2017-04-23 03:14:22 -04:00
Andrew Kelley
ad9040443c new compile errors for setGlobalAlign and setGlobalSection builtins 
if you try to use them on an external variable or function
then you get a compile error, since the alignment/section
is set externally in this case.

closes #244
 2017-04-22 12:54:00 -04:00
Andrew Kelley
aafb0b9082 slicing now returns correct const-ness 
also remove the ability to override constness when slicing

closes #334
 2017-04-22 12:19:20 -04:00
Andrew Kelley
1a0081b763 add peer type resolution for T and ?T 
See #334
 2017-04-22 11:45:04 -04:00
Andrew Kelley
0cce115476 update syntax for try and nullable unwrapping 
closes #285
 2017-04-21 16:46:33 -04:00
Andrew Kelley
d5346d7a80 remove ?return and ?defer 
closes #309
 2017-04-21 15:08:03 -04:00
Andrew Kelley
e3c524c1d4 rename @ptrcast to @ptrCast to follow convention 2017-04-21 10:39:13 -04:00
Andrew Kelley
fb492d19eb zig build system supports building a library 
See #329

Supporting work:
 * move std.cstr.Buffer0 to std.buffer.Buffer
 * add build.zig to example/shared_library/ and add an automated test
   for it
 * add std.list.List.resizeDown
 * improve std.os.makePath
   - no longer recursive
   - takes into account . and ..
 * add std.os.path.isAbsolute
 * add std.os.path.resolve
 * reimplement std.os.path.dirname
   - no longer requires an allocator
   - handles edge cases correctly
 2017-04-21 01:56:12 -04:00
Raul Leal
5234016561 Add @offsetOf builtin function 2017-04-20 11:53:00 +00:00
Andrew Kelley
d12f1f5b49 test framework supports name prefix and filter argument 
rename self hosted tests to behavior tests
 2017-04-19 15:38:12 -04:00
Andrew Kelley
d1e01e43d3 convert assemble and link tests to zig build system 2017-04-19 14:00:12 -04:00
Andrew Kelley
666435195f update zig build help text when no build.zig found 2017-04-19 04:36:48 -04:00
Andrew Kelley
37b9a2e6a4 convert compare-output tests to use zig build system 2017-04-19 01:15:20 -04:00
Andrew Kelley
237dfdbdc6 error when building exe with no entry point 
closes #30
 2017-04-18 14:04:48 -04:00
Andrew Kelley
6f0f8a92ec bail out of analysis on first error during comptime eval 
prevents an error during comptime eval from printing a
large number of compile errors
 2017-04-18 04:02:36 -04:00
Andrew Kelley
a791417552 add @fieldParentPtr builtin function 
closes #320
 2017-04-18 02:28:05 -04:00
Andrew Kelley
407916cd2f rename @intType to @IntType to follow convention 
closes #327
 2017-04-18 00:05:09 -04:00
Andrew Kelley
c7852bd596 minor clean ups from previous commit 2017-04-17 20:15:19 -04:00
Raul Leal
3266585606 Implicit cast from T to %?T 
closes #171
 2017-04-17 19:55:56 -04:00
Andrew Kelley
2e0b114fdc add compile error for intToPtr with a 0-bit ptr 
See #323
 2017-04-17 19:28:33 -04:00
Andrew Kelley
47336abae3 improvements to zig build system and unwrap error safety 
* zig build system: create standard dynamic library sym links
 * unwrapping an error results in a panic message that contains
   the error name
 * rename error.SysResources to error.SystemResources
 * add std.os.symLink
 * add std.os.deleteFile
 2017-04-17 06:47:20 -04:00
Josh Wolfe
3e93796e24 comptime ({}) should not get an implicit semicolon 
closes #292.
 2017-04-14 16:09:01 -07:00
Andrew Kelley
5fdefe58e4 zig build system understands the concept of dependencies 
See #204
 2017-04-13 17:21:00 -04:00
Andrew Kelley
dcfa0e50dc all internal functions get unnamed_addr attribute 2017-04-13 03:34:57 -04:00
Andrew Kelley
f2140efc52 Merge remote-tracking branch 'origin/parser' 2017-04-13 03:09:09 -04:00
Andrew Kelley
bf57d8a7e3 typedefpocalypse 
closes #314
 2017-04-13 03:07:58 -04:00
Josh Wolfe
356424916c block statement lists never get fake expressions 
instead blocks have a field that encodes whether the last statement ended with
a semicolon.
 2017-04-12 23:22:32 -07:00
Josh Wolfe
919910312d make it an error to ignore a statement's value 
this makes {1;} an error.
 2017-04-12 22:21:35 -07:00
Andrew Kelley
bf67427c67 fix crash when using zig to link 
without explicit dynamic linker
 2017-04-13 01:15:25 -04:00
Andrew Kelley
41144a8566 ability to inline at function callsite 
closes #306
 2017-04-13 00:13:54 -04:00
Andrew Kelley
2864359950 zig build system writes template build.zig file when none exists 
see #204
 2017-04-11 06:14:46 -04:00
Andrew Kelley
7f47b0c271 run alwaysinline pass in debug mode 
before this commit, the optimized IR code that is displayed in
--verbose mode is not actually what gets emitted to an object
file.

that is now corrected, and we make sure to run the alwaysinliner
pass even in debug mode, so you can rely on "inline" keyword
inlining a function, guaranteed.

See #306
 2017-04-11 03:37:44 -04:00
Andrew Kelley
11a6550324 fix some -Wconversion errors 2017-04-10 20:02:39 -04:00
Andrew Kelley
34eff50326 fix for loops not working at compile-time 
closes #315
 2017-04-10 03:00:19 -04:00
Andrew Kelley
0e77b0ac89 fix mangling exported global variables 
closes #316
 2017-04-10 02:32:11 -04:00
Andrew Kelley
095591f0b0 add enumTagName builtin function 
closes #299
 2017-04-08 17:45:22 -04:00
Andrew Kelley
7611ed3484 allow implicit cast from [N]T to &const []const T 
closes #296
 2017-04-07 17:56:01 -04:00
Andrew Kelley
f7e9d7aa5d ability to implicitly cast integer literal to &const Int 
where Int is an integer type

also introduce `@intToPtr` builtin for converting a usize
to a pointer. users now have to use this instead of `(&T)(int)`.

closes #311
 2017-04-07 15:35:38 -04:00
Andrew Kelley
ffb4852012 add compile error for the bug of unable to call var ags at compile time 
See #313
 2017-04-07 00:33:19 -04:00
Andrew Kelley
a3de550d3b fix var args having wrong index when runtime param before it 
closes #312
 2017-04-06 21:00:49 -04:00
Andrew Kelley
273cebdf4d peer resolve types [N]T, [M]T as []const T 
closes #125
 2017-04-06 18:07:38 -04:00
Andrew Kelley
47f58d6d02 fix runtime struct initialization of bitfield 
closes #308
 2017-04-06 15:04:18 -04:00
Andrew Kelley
6fbe1632d0 Update zig build system to support user defined options 
* Fix assertion failure when switching on type.
   Closes #310
 * Update zig build system to support user defined options.
   See #204
 * fmt.format supports {sNNN} to set padding for a buffer arg.
 * add std.fmt.bufPrint and std.fmt.allocPrint
 * std.hash_map.HashMap.put returns the previous value
 * add std.mem.startsWith
 2017-04-06 05:34:04 -04:00
Andrew Kelley
d65cd73a8b add support to use zig as a linker driver 
closes #243

I also added --grep to ./run_tests if you want to single out
some specific tests
 2017-04-05 07:49:40 -04:00
Andrew Kelley
8c10b6dcbd ability to use zig as an assembler 
see #243
 2017-04-05 03:36:55 -04:00
Andrew Kelley
a461ae6c1f fix crash when referencing invalid member of builtin enum 
closes #304
 2017-04-04 21:36:24 -04:00
Andrew Kelley
e30f713640 more accurate detection of pub main 2017-04-04 21:19:22 -04:00
Andrew Kelley
0edc2b19fe support module level assembly 
closes #256
 2017-04-04 19:47:22 -04:00
Andrew Kelley
00efbfa054 link: correctly print debug linker invocation 2017-04-04 06:15:23 -04:00
Andrew Kelley
8db9d04e6f link: fix ignoring first linker arg 
LLD treats the first argument as arg[0], the exe name
 2017-04-04 06:07:09 -04:00
Andrew Kelley
e332cd65c9 zig build system: delete ./build file on success 
see #204
 2017-04-04 02:02:51 -04:00
Andrew Kelley
1c6000d047 zig build system improvements, add some std API 
* add std.buf_map.BufMap
 * add std.buf_set.BufSet
 * add std.mem.split
 * zig build system improvements (See #204)
   - automatically parses NIX_CFLAGS_COMPILE and NIX_LDFLAGS
   - add builder.addCIncludePath
   - add builder.addRPath
   - add builder.addLibPath
   - add exe.linkLibrary
 2017-04-04 01:52:20 -04:00
Andrew Kelley
b46344fd01 link: delete code that checks the linker version 
since we depend on LLD for linking
 2017-04-03 23:29:53 -04:00
Andrew Kelley
c9ae30d27e delete alloca builtin function 
See #225

introduce os.EnvMap
 2017-04-03 18:11:57 -04:00
Andrew Kelley
c400cb429a zig build system: add setLinkerScript and setTarget 
* See #204 - zig build system
 * allow builtin types Os, Environ, Arch to be used at runtime.
   they have zero_bits=false and debug info now.
 * Eradicate use of `@alloca` in std for syscalls. See #225
 * add `std.io.writeFile`
 * `std.debug.panic` adds a newline to format
 2017-04-03 05:04:46 -04:00
Andrew Kelley
8fd0fddce5 zig build system progress 
* In-progress os.ChildProcess.spawn implementation. See #204
 * Add explicit cast from integer to error. Closes #294
 * fix casting from error to integer
 * fix compiler crash when initializing variable to undefined
   with no type
 2017-04-02 18:19:59 -04:00
Josh Wolfe
0594487a2e fix else-if parsing 
implicit semicolon rules apply recursively to the "else" clause of if and try

if (a) {} else {} // implicit semicolon
if (a) {} else if (a) {} // implicit semicolon
if (a) {} else while (a) {} // implicit semicolon
 2017-04-02 15:15:48 -07:00
Josh Wolfe
a33be6fc99 defer without a block body requires a following semicolon 2017-04-02 13:47:23 -07:00
Josh Wolfe
8d03d666af add secret void expression after defer statement if it's the last statement in a block 2017-04-02 13:18:12 -07:00
Josh Wolfe
e3c796258c allow implicit semicolon after defer {} 2017-04-02 13:01:23 -07:00
Josh Wolfe
136a9a9d6b variable declarations must be followed by semicolon 2017-04-02 12:46:18 -07:00
Josh Wolfe
4b9e782d37 fix confusion in block expression parsing 
closes #292

* if, try, while, for, comptime, defer are "greedy" with {} blocks,
  meaning if their bodies are blocks, then no suffix operator is allowed
  after the block. The {} block gets "built into" the containing statement,
  like the body of a switch statement.
* the Expression syntactic element is no longer "greedy" with {} blocks,
  meaning it's possible to have suffix operators after {} blocks without
  needing the {} block to be an rhs operand first.
 2017-04-02 11:50:34 -07:00
Josh Wolfe
9968879261 Require top-level-declaration comptime use {} 
This forbids `comptime 1 comptime 1` at top-level scope.
 2017-04-02 11:02:47 -07:00
Josh Wolfe
36a015741d clean up analysis of {blocks} 
* Don't insert void statements all over the place. {} now stays as
  {} instead of {{}}, and {;} becomes {} instead of {{};{}}.
* Ensure final statement is always the return value statement, or
  the block is empty. This means {label:} becomes {label:{}}.
 2017-03-31 08:54:03 -07:00
Andrew Kelley
f8e63c4584 change @bitcast to @ptrcast 
See #290
 2017-03-31 06:18:20 -04:00
Andrew Kelley
3ca027ca82 first pass at zig build system 
* `zig build --export [obj|lib|exe]` changed to `zig build_obj`,
   `zig build_lib` and `zig build_exe` respectively.
 * `--name` parameter is optional when it can be inferred from the
   root source filename. closes #207
 * `zig build` now looks for `build.zig` which interacts with
   `std.build.Builder` to describe the targets, and then the zig
   build system prints TODO: build these targets. See #204
 * add `@bitcast` which is mainly used for pointer reinterpret
   casting and make explicit casting not do pointer reinterpretation.
   Closes #290
 * fix debug info for byval parameters
 * sort command line help options
 * `std.debug.panic` supports format string printing
 * add `std.mem.IncrementingAllocator`
 * fix const ptr to a variable with data changing at runtime.
   closes #289
 2017-03-31 05:55:41 -04:00
Andrew Kelley
a32b5929cc add stack protector safety when linking libc 
* introduce zigrt file. it contains only weak symbols so that
   multiple instances can be merged. it contains __zig_panic
   so that multiple .o files can call the same panic function.
 * remove `@setFnVisible` builtin and add @setGlobalLinkage builtin
   which is more powerful
 * add `@panic` builtin function.
 * fix collision of symbols with extern prototypes and internal
   function names
 * add stack protector safety when linking against libc. To add
   the safety mechanism without libc requires implementing
   Thread Local Storage. See #276
 2017-03-26 21:07:07 -04:00
Andrew Kelley
8aeea72654 add debug safety checks for remainder division 
See #217
 2017-03-26 15:06:43 -04:00
Andrew Kelley
3103355805 add comptime eval for some uint comparisons with 0 
closes #55
 2017-03-26 14:41:17 -04:00
Andrew Kelley
5bc9feb5cb organize std and make import relative to current file 
closes #216
 2017-03-26 06:39:28 -04:00
Andrew Kelley
7ce753a16b replace "&&" and "||" with "and" and "or" 
closes #272
 2017-03-26 05:21:28 -04:00
Andrew Kelley
451ce09067 new unreachable syntax 
* `noreturn` is the primitive type.
 * `unreachable` is a control flow keyword.
 * `@unreachable()` builtin function is deleted.

closes #214
 2017-03-26 04:58:48 -04:00
Andrew Kelley
22e6bfca96 add comptime top level declaration 
closes #255
 2017-03-26 04:32:13 -04:00
Andrew Kelley
7c53230a61 introduce copyable concept 
closes #103
 2017-03-26 03:39:18 -04:00
Andrew Kelley
5c04730534 use intel dialect for inline assembly 
closes #242
 2017-03-23 18:59:43 -04:00
Andrew Kelley
fd634f3db3 don't mangle symbols with underscores 
closes #275
 2017-03-23 18:28:10 -04:00
Andrew Kelley
d6856859d3 improvements for windows and libc integration 
* standard library knows if it is linking against libc and will
   sometimes call libc functions in that case instead of providing
   redundant definitions
 * fix infinite loop bug when resolving use declarations
 * allow calling the same C function from different C imports.
   closes #277
 * push more logic from compiler to std/bootstrap.zig
 * standard library provides way to access errno
   closes #274
 * fix compile error in standard library for windows
 * add implementation of getRandomBytes for windows
 2017-03-23 02:59:58 -04:00
Andrew Kelley
01b2bf4a44 on Darwin/MacOS/iOS, add c to link libs implicitly 2017-03-22 11:55:41 -04:00
Andrew Kelley
87bc97daef unify main entry point regardless of whether linking libc 
closes #248
 2017-03-22 11:26:30 -04:00
Andrew Kelley
e1c47d6fe8 fix test regression regarding shadowing names 
closes #271
 2017-03-20 15:32:13 -04:00
Andrew Kelley
fa7c64ccd5 lazy analysis of top level declarations 
previously, we had lazy analysis of top level declarations,
but if a declaration was referenced within a compile-time
if or switch statement, that would still add the top
level declaration to the resolution queue.

now we have a declref ir instruction, which is only resolved
if we analyze the instruction. this takes into account comptime
branching.

closes #270
 2017-03-18 11:28:43 -04:00
Andrew Kelley
af536ac343 introduce new test syntax 
* remove setFnTest builtin
 * add test "name" { ... } syntax
 * remove --check-unused argument. functions are always lazy now.
 2017-03-16 16:02:35 -04:00
Andrew Kelley
329457bb4f Merge branch 'master' into lld 2017-03-14 21:39:04 -04:00
Andrew Kelley
a76558db26 fix behavior with reinterpreting constant memory 2017-03-14 21:38:27 -04:00
Andrew Kelley
7efa2cd81c add --each-lib-rpath option and corresponding config option 
This adds an rpath entry for each used dynamic library directory.
This is necessary on some systems such as NixOS.
 2017-03-13 13:11:55 -04:00
Andrew Kelley
d10bbd28e9 use lld instead of system linker 2017-03-13 11:54:56 -04:00
Andrew Kelley
7bc0145b80 types with zero bits do not have a pointer handle 2017-03-10 11:30:30 -05:00
Andrew Kelley
434f017aee codegen nullable void the same way as bool 
See #104
 2017-03-10 11:21:41 -05:00
Andrew Kelley
c78dc5043b add default value for macosx version min when compiling natively 
closes #264
 2017-03-10 02:58:23 -05:00
Andrew Kelley
c91dbdb27c fix not allocating enough memory for passing args 
fixes a bug introduced in c62db5721c
 2017-03-10 02:50:53 -05:00
Andrew Kelley
cd31f875a6 update to llvm 4.0 2017-03-10 02:29:01 -05:00
Andrew Kelley
c62db5721c support passing var args directly 
See #77
 2017-03-09 16:13:38 -05:00
Andrew Kelley
558ae2f21a fix a case of invalid ptr const-ness 2017-03-08 17:02:18 -05:00
Andrew Kelley
ddd9624e2d fix assertion error, trying to dereference to array 
thanks to hoppetosse on IRC for reporting the issue
 2017-03-07 19:08:02 -05:00
Andrew Kelley
6d0afc2bd2 add compile error for assigning number literal to non-comptime var 2017-03-02 18:51:19 -05:00
Andrew Kelley
03b6d9f547 fix assertion failure for some switch errors 2017-02-28 03:32:12 -05:00
Andrew Kelley
1195994880 fix inability to write to global in some cases 
before, when we initialized a variable by copying the
initialization value, it made the internal const value
references point to a duplicate value, resulting in
a phony duplicate global value being updated instead of
the real on. now the behavior is as expected.

thanks to hoppetosse for pointing out this bug on IRC.
 2017-02-27 00:07:11 -05:00
Andrew Kelley
25761570f1 more robust const struct values 2017-02-26 23:50:04 -05:00
Andrew Kelley
889bed13c3 unwrap error payload instruction has side effects only if safety check on 2017-02-24 15:11:33 -05:00
Andrew Kelley
cd992b89d2 fix unwrap error payload not emitting debug safety 2017-02-24 15:07:46 -05:00
Andrew Kelley
a665872e88 add compile error for ignoring return value 
also introduce the _ identifier which you can assign to
to discard a return value

closes #219
 2017-02-24 15:01:19 -05:00
Andrew Kelley
3b40aaa01f add compile error for control flow using comptime var at runtime 
closes #266
 2017-02-24 13:57:00 -05:00
Andrew Kelley
3075d8aee7 fix use decls not always working 2017-02-23 16:52:13 -05:00
Andrew Kelley
b1ace32f23 fix wrong format specifier 
closes #263
 2017-02-22 15:36:57 -05:00
Andrew Kelley
786677f80c fix regression with bit fields that align properly 2017-02-22 00:58:31 -05:00
Andrew Kelley
d794549985 bitfields support for array of non-store-aligned packed structs 2017-02-22 00:49:10 -05:00
Andrew Kelley
cf5108f222 correct size of types for packed structs 
with byte aligned but non-power-of-2 fields such as 24
 2017-02-21 14:22:23 -05:00
Andrew Kelley
4709fe1176 more robust detection of types that failed to resolve 2017-02-20 19:56:07 -05:00
Andrew Kelley
c4ee37f506 fix assertion failure when first use of a struct is sizeOf 2017-02-18 18:33:21 -05:00
Andrew Kelley
0148f39df9 pointers with bit offset contain length 
adds compile error when passing pointer that is byte-aligned
at the beginning but not the end to a function expecting
a fully byte aligned pointer

closes #261
 2017-02-16 19:35:42 -05:00
Andrew Kelley
244362fed7 ability to write to bit fields 
See #261
 2017-02-16 18:42:52 -05:00
Andrew Kelley
b6e7a0dadd support arithmetic for non byte aligned integer types 
see #261
 2017-02-16 17:08:55 -05:00
Andrew Kelley
fc5d47b9b9 reading from a bit field partially works 
See #261

Still need to do:
 * reading a field that has bit offset 0 but still needs to
   shift and truncate
 * writing a field
 2017-02-16 15:45:41 -05:00
Andrew Kelley
4b5cc80f66 move volatile pointers to central type table 2017-02-16 13:58:42 -05:00
Andrew Kelley
4a957b9ea3 move int and array types to central table 2017-02-16 13:45:14 -05:00
Andrew Kelley
1fc2082b4c ability to declare const bitfields 
See #261
 2017-02-15 18:55:29 -05:00
Andrew Kelley
63d37b7cff add runtime debug safety for dividing integer min value by -1 
closes #260
 2017-02-14 01:08:30 -05:00
Andrew Kelley
0931b85bd0 fix crash when return value is ??void 
closes #258
 2017-02-12 18:27:34 -05:00
Andrew Kelley
79ec5a0287 fix tokenization assertion failure on some float numbers 
See #258
 2017-02-12 17:56:34 -05:00
Andrew Kelley
6dba1f1c8e slice and array re-work plus some misc. changes 
* `@truncate` builtin allows casting to the same size integer.
   It also performs two's complement casting between signed and
   unsigned integers.
 * The idiomatic way to convert between bytes and numbers is now
   `mem.readInt` and `mem.writeInt` instead of an unsafe cast.
   It works at compile time, is safer, and looks cleaner.
 * Implicitly casting an array to a slice is allowed only if the
   slice is const.
 * Constant pointer values know if their memory is from a compile-
   time constant value or a compile-time variable.
 * Cast from [N]u8 to []T no longer allowed, but [N]u8 to []const T
   still allowed.
 * Fix inability to pass a mutable pointer to comptime variable at
   compile-time to a function and have the function modify the
   memory pointed to by the pointer.
 * Add the `comptime T: type` parameter back to mem.eql. Prevents
   accidentally creating instantiations for arrays.
 2017-02-12 17:35:51 -05:00
Andrew Kelley
ca180d3f02 std.io.parseUnsigned buf parameter is const 
fixes padding in printf

See #258
 2017-02-11 15:06:20 -05:00
Andrew Kelley
f7173f4f08 fix crash on string literal with character code >= 128 
See #258
 2017-02-11 14:01:11 -05:00
Andrew Kelley
39287d7346 rework compile-time known pointer values 
See #257
 2017-02-11 13:13:45 -05:00
Andrew Kelley
92ffcc84a9 remove the depends_on_compile_var code 
cleanup from the decision in commit 8a859afd58
to remove "unnecessary if statement" error
 2017-02-09 12:43:08 -05:00
Andrew Kelley
fc100d7b3b lots of miscellaneous things all in one big commit 
* add `@compileLog(...)` builtin function
   - Helps debug code running at compile time
   - See #240
 * fix crash when there is an error on the start value of a slice
 * add implicit cast from int and float types to int and float
   literals if the value is known at compile time
 * make array concatenation work with slices in addition to
   arrays and c string literals
 * fix compile error message for something not having field access
 * fix crash when `@setDebugSafety()` was called from a
   function being evaluated at compile-time
 * fix compile-time evaluation of overflow math builtins.
 * avoid debug safety panic handler in builtin.o and compiler_rt.o
   since we use no debug safety in these modules anyway
 * add compiler_rt functions for division on ARM
   - Closes #254
 * move default panic handler to std.debug so users can
   call it manually
 * std.io.printf supports a width in the format specifier
 2017-02-09 03:09:25 -05:00
Andrew Kelley
8a859afd58 std.io supports printing integers as hex values 
remove "unnecessary if statement" error
this "depends on compile variable" code is too hard to validate,
and has false negatives. not worth it right now.

std.str removed, instead use std.mem.

std.mem.eql and std.mem.sliceEql merged and do not require explicit
type argument.
 2017-02-07 17:23:50 -05:00
Andrew Kelley
92793252ad inline assembly allows clobbers with no input 2017-02-07 01:53:45 -05:00
Andrew Kelley
916a96fb72 variables, memcpy, and memset all get alignment 
See #37
 2017-02-07 01:50:10 -05:00
Andrew Kelley
573f3f8d48 coldcc works better 
* Only use Cold Calling Convention on x86
 * Add the cold attribute to functions marked with coldcc
 2017-02-06 13:50:19 -05:00
Andrew Kelley
07a71fc322 improved behavior on debug safety crash 
* instead of emitting a breakpoint for a debug safety crash,
   zig calls a panic function which prints an error message
   and a stack trace and then calls abort.
 * on freestanding OS, this panic function has a default
   implementation of a simple infinite loop.
 * users can override the panic implementation by providing
   `pub fn panic(message: []const u8) -> unreachable { }`
 * workaround for LLVM segfaulting when you try to use cold
   calling convention on ARM.

closes #245
 2017-02-06 03:10:32 -05:00
Andrew Kelley
28f63b8a4f fix volatile not respected for storing through a struct pointer 2017-02-05 20:49:14 -05:00
Andrew Kelley
d26bb3ae2e fix assigning to const ptr through struct or index 2017-02-05 19:55:37 -05:00
Andrew Kelley
7749ffd797 try expression can omit variable assignments 2017-02-05 18:58:58 -05:00
Andrew Kelley
b9c943b066 tell LLVM the target sub arch type 2017-02-05 18:23:54 -05:00
Andrew Kelley
135c021c83 delete unneeded IR code and fix assigning to const ptr 2017-02-05 16:06:06 -05:00
Andrew Kelley
025051885b fix volatile not respected for loads 2017-02-05 16:00:12 -05:00
Andrew Kelley
d151c58788 all functions are nounwind because zig does not support exceptions 2017-02-05 13:14:42 -05:00
Andrew Kelley
52eec6b9a6 %= in inline assembly survives optimization 2017-02-05 13:12:06 -05:00
Andrew Kelley
6f316d8ebd setGlobalSection and setGlobalAlign work for functions 2017-02-05 12:50:19 -05:00
Andrew Kelley
d2f1f57fa4 even external functions which provide definitions get nounwind 2017-02-05 01:57:49 -05:00
Andrew Kelley
74d41ce44b infer hard float from target environments that imply it 2017-02-05 00:16:49 -05:00
Andrew Kelley
64a0510205 inline assembly supports %= syntax 
it outputs a number that is unique to each instance of the asm
statement in the entire compilation.

useful when creating local labels and referring to them multiple
times in a single template that generates multiple
assembler instructions
 2017-02-04 22:33:58 -05:00
Andrew Kelley
b840184bb0 memcpy and memset builtins support volatile pointers 
See #238
 2017-02-04 22:12:06 -05:00
Andrew Kelley
419e75eb23 remove volatileStore builtin; add volatile pointers 
closes #238
 2017-02-04 21:49:27 -05:00
Andrew Kelley
0d7abc6368 add compile error when setting non power of 2 alignment 2017-02-04 10:38:38 -05:00
Andrew Kelley
0919ea0afd ability to set global variable alignment and ... 
..section in the initialization expression
 2017-02-04 10:22:07 -05:00
Andrew Kelley
67b02326f8 preserve names of exported variables 2017-02-03 16:27:24 -05:00
Andrew Kelley
d3f1889951 in freestanding environment, assume gnu binutils 
for now. soon LLD will free us from depending on
system linkers.
 2017-02-03 15:53:23 -05:00
Andrew Kelley
5a86c04996 add volatileStore() builtin function 
See #238

We can revisit how volatile will work later - for now
here's a builtin function to do it.
 2017-02-03 15:14:18 -05:00
Andrew Kelley
8c9016b6d1 add setGlobalAlign and setGlobalSection builtin functions 
closes #241
 2017-02-03 13:56:56 -05:00
Andrew Kelley
3be4b6434c add ability to set linker script 2017-02-03 12:34:20 -05:00
Andrew Kelley
e00eec1c29 typedefs work for binary math operations 2017-02-03 12:09:13 -05:00
Andrew Kelley
aae168550f exported global variables get emitted as external in LLVM 2017-02-03 11:59:56 -05:00
Andrew Kelley
71d335e5cc implement packed structs 
closes #183
 2017-02-03 11:39:24 -05:00
Andrew Kelley
cd7713b178 make --target-os freestanding work 2017-02-02 23:14:08 -05:00
Andrew Kelley
0cf0739b0a update outdated comment 2017-02-02 17:18:36 -05:00
Andrew Kelley
c0b37e8514 add try expression 
See #83
 2017-02-02 17:09:27 -05:00
Andrew Kelley
8b1c6d8b76 fix ability to call method on variable at compile time 2017-02-02 15:03:21 -05:00
Andrew Kelley
2b88441295 fix behavior when initializing struct with undefined 2017-02-02 14:55:01 -05:00
Andrew Kelley
b78c91951a remove ability to mark if and switch as inline 
if and switch are implicitly inline if the condition/target
expression is known at compile time.

instead of:

```
inline if (condition) ...
inline switch (target) ...
```

one can use:

```
if (comptime condition) ...
switch (comptime target) ...
```
 2017-02-02 13:23:18 -05:00
Andrew Kelley
cd08c1f3be prefix op maybe and error are for types only 2017-02-02 12:21:11 -05:00
Andrew Kelley
d13cec6894 fix var args allocating wrong amount of memory in compiler 2017-01-31 16:04:26 -05:00
Andrew Kelley
88a253c64d fix crash when passing void to var args function 
closes #235
 2017-01-31 15:50:38 -05:00
Andrew Kelley
b258fdb532 add integer literal to pointer explicit cast 
closes #227
 2017-01-31 13:38:04 -05:00
Andrew Kelley
d8da34c64c fix crash when assigning too large value to integer 
closes #228
 2017-01-31 02:30:10 -05:00
Andrew Kelley
d2b94afaf2 fix compile time initialization of array with undefined 2017-01-29 23:35:34 -05:00
Andrew Kelley
3caf6bacdc fix sometimes using wrong outer scope for generating defers 2017-01-29 21:57:49 -05:00
Andrew Kelley
c75e58ffe6 fix behavior for comptime and runtime basic block phi 2017-01-29 19:10:56 -05:00
Andrew Kelley
e0a422ae7e fix runtime branching tricking the comptime evaluation 
closes #167
 2017-01-26 15:34:36 -05:00
Andrew Kelley
4b3f18de3c printf var args proof of concept 
See #167

Need to troubleshoot when we send 2 slices to printf. It goes
into an infinite loop.

This commit introduces 4 builtin functions:

 * `@isInteger`
 * `@isFloat`
 * `@canImplictCast`
 * `@typeName`
 2017-01-24 02:02:48 -05:00
Andrew Kelley
32d8686da8 various fixes 
* comptime expression is a block expression as it should be
 * fix var args when number of args passed is 0
 * implement const value equality for structs
 * fix indent when rendering container decl AST
 * IR: prevent duplicate generation of code when it is partially
   compile-time evaluated
 * implement compile time struct field pointer evaluation
 * fix compile time evaluation of slicing
 2017-01-23 23:30:20 -05:00
Andrew Kelley
17cb85dfb8 basic support for functions with variable length arguments 
See #77
 2017-01-23 16:40:17 -05:00
Andrew Kelley
e5b1758010 remove staticEval builtin in favor of comptime expression 2017-01-22 23:21:00 -05:00
Andrew Kelley
201a3c121a introduce comptime expression 
closes #221
 2017-01-22 22:59:52 -05:00
Andrew Kelley
47cf8520ad use comptime instead of inline for var and params 
See #221
 2017-01-22 19:51:37 -05:00
Andrew Kelley
6a5e61acd1 get rid of zeroes literal 
closes #222
 2017-01-16 17:24:13 -05:00
Andrew Kelley
0caee421e3 ability to equality compare with null 
closes #106
 2017-01-16 16:39:31 -05:00
Andrew Kelley
867686af42 equality comparison of void types is known at compile time 
closes #56
 2017-01-16 16:07:03 -05:00
Andrew Kelley
fdbc2d8da1 implement error when assigning to field of const struct 
closes #48
 2017-01-16 15:24:03 -05:00
Andrew Kelley
4cbeb87e83 fix handling of const values for 2d arrays 2017-01-16 12:42:46 -05:00
Andrew Kelley
c7591736b4 fix array of enums. also render debug info for const vars 2017-01-16 01:44:47 -05:00
Andrew Kelley
3752e0c290 fix get_maybe_type not ensuring complete child type 2017-01-15 23:36:14 -05:00
Andrew Kelley
d0b59f20ab fix llvm assertion failure for zero bits structs 2017-01-15 23:27:14 -05:00
Andrew Kelley
0b6cf0aa63 fix handling of invalid enumeration 2017-01-15 22:34:20 -05:00
Andrew Kelley
8106f9846a fix enum codegen and implement comptime switch var on enums 2017-01-15 22:16:39 -05:00
Andrew Kelley
0c1800a9c9 fix some stuff when llvm has assertions on 2017-01-13 17:33:19 -05:00
Andrew Kelley
83f1a6fae2 fix some bugs with structs 2017-01-13 16:24:13 -05:00
Andrew Kelley
652bfab3d0 fix crash when casting fn call arg 2017-01-12 18:10:18 -05:00
Andrew Kelley
c793c534b8 fix use decl regression 2017-01-12 18:10:05 -05:00
Andrew Kelley
18f248b94d IR: fix array concatenation 
all tests passing
 2017-01-12 15:10:58 -05:00
Andrew Kelley
d784705353 IR: implement macro for function aliasing function pointer 2017-01-12 03:15:06 -05:00
Andrew Kelley
76b1cbc2ea pass some parseh tests 2017-01-11 22:25:17 -05:00
Andrew Kelley
25a670d74e pass more tests 2017-01-11 19:09:17 -05:00
Andrew Kelley
fc53708dc0 better error message for unable to eval const expr 2017-01-11 18:06:21 -05:00
Andrew Kelley
7493af5953 fix a few tests 2017-01-11 00:38:24 -05:00