This removes the compiler_rt.setXmm0 hack. Instead, for
the functions that use i128 or u128 in their parameter and
return types, we use `@Vector(2, u64)` which generates
the LLVM IR `<2 x i64>` type that matches what Clang
generates for `typedef int ti_int __attribute__ ((mode (TI)))`
when targeting Windows x86_64.
there's a simple way to check for nan that does not need this header.
hryx on IRC reported that Linux Mint based on ubuntu 16.04, kernel
4.15.0, x86_64 did not have the isnan function.
Before only u0 was special cased in handling a dereference;
now all zero bit types are handled the same way. Dereferencing
a pointer to a zero bit type always gives a comptime-known
result.
This previously had been failing on master branch but went unnoticed
because until 846f72b57c the CI server was mistakenly not actually
running the single-threaded tests with --single-threaded.
This fixes the standard library tests with --single-threaded
--release-fast.
This fixes comes thanks to Rich Felker from the musl libc project,
who gave me this crucial information:
"to satisfy the abi, your init code has to write the same value
to that memory location as the value passed to the [arch_prctl]
syscall"
This commit also changes the rules for when to build statically
by default. When building objects and static libraries, position
independent code is disabled if no libraries will be dynamically
linked and the target does not require position independent code.
closes#2063
Not tested yet, but it builds.
This closes#761, and lays the groundwork for fixing the remaining
false positive "foo depends on itself" bugs, such as #624.
It also lays the groundwork for implementing ability to specify
alignment of fields (#1512).
The `--` double-hyphen is now used to end further `zig` processing
of command line options. All arguments after `--` will be passed
on to the executable. eg. `--help` will be passed on.
`zig run foo.zig -- --help`
closes#2148
