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zig/std/special/compiler_rt
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Andrew Kelley d83836825f
add mulXf3 to compiler-rt 
this adds the following functions to compiler-rt:

 * `__mulsf3`
 * `__muldf3`
 * `__multf3`

See #1290
2019-03-22 17:46:49 -04:00
..
addXf3_test.zig
addXf3.zig
aulldiv.zig
aullrem.zig
comparetf2.zig
divti3_test.zig
divti3.zig
extendXfYf2_test.zig
extendXfYf2.zig
fixdfdi_test.zig
fixdfdi.zig
fixdfsi_test.zig
fixdfsi.zig
fixdfti_test.zig
fixdfti.zig
fixint_test.zig
fixint.zig
fixsfdi_test.zig
fixsfdi.zig
fixsfsi_test.zig
fixsfsi.zig
fixsfti_test.zig
fixsfti.zig
fixtfdi_test.zig
fixtfdi.zig
fixtfsi_test.zig
fixtfsi.zig
fixtfti_test.zig
fixtfti.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
muloti4_test.zig
muloti4.zig
multi3_test.zig
multi3.zig
mulXf3_test.zig add mulXf3 to compiler-rt 2019-03-22 17:46:49 -04:00
mulXf3.zig add mulXf3 to compiler-rt 2019-03-22 17:46:49 -04:00
popcountdi2_test.zig
popcountdi2.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.