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zig/std/special/compiler_rt
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Andrew Kelley 085d049a08
aarch64 improvements 
* support C ABI for all return types
 * don't include __aeabi_uldivmod & co on aarch64 since
   it's 64 bit
2018-11-17 11:21:00 -05:00
..
aulldiv.zig
aullrem.zig
comparetf2.zig
divti3_test.zig
divti3.zig
extendXfYf2_test.zig
extendXfYf2.zig
fixuint.zig
fixunsdfdi_test.zig
fixunsdfdi.zig
fixunsdfsi_test.zig
fixunsdfsi.zig
fixunsdfti_test.zig
fixunsdfti.zig
fixunssfdi_test.zig
fixunssfdi.zig
fixunssfsi_test.zig
fixunssfsi.zig
fixunssfti_test.zig
fixunssfti.zig
fixunstfdi_test.zig
fixunstfdi.zig
fixunstfsi_test.zig
fixunstfsi.zig
fixunstfti_test.zig
fixunstfti.zig
floattidf_test.zig
floattidf.zig
floattisf_test.zig
floattisf.zig
floattitf_test.zig
floattitf.zig
floatunditf_test.zig
floatunditf.zig
floatunsitf_test.zig
floatunsitf.zig
floatuntidf_test.zig
floatuntidf.zig
floatuntisf_test.zig
floatuntisf.zig
floatuntitf_test.zig
floatuntitf.zig
index.zig
muloti4_test.zig
muloti4.zig
multi3_test.zig
multi3.zig
README.md
truncXfYf2_test.zig
truncXfYf2.zig
udivmod.zig
udivmoddi4_test.zig
udivmoddi4.zig
udivmodti4_test.zig
udivmodti4.zig
udivti3.zig
umodti3.zig

README.md

This compiler-rt library is ported from LLVM.

It's needed because LLVM emits library calls to compiler-rt when hardware lacks functionality, for example, 64-bit integer multiplication on 32-bit x86.

This library is automatically built as-needed for the compilation target and then statically linked and therefore is a transparent dependency for the programmer.

Any bugs should be solved by trying to duplicate the bug upstream.

  • If the bug exists upstream, get it fixed with the LLVM team and then port the fix downstream to Zig.
  • If the bug only exists in Zig, something went wrong porting the code, and you can run the C code and Zig code side by side in a debugger to figure out what's happening differently.