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zig/std/special/compiler_rt
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Andrew Kelley e63d864c1e add compiler_rt functions for f128 
* __letf2
 * __cmptf2
 * __getf2
 * __unordtf2
 * __eqtf2
 * __lttf2
 * __netf2
 * __gttf2
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..
comparetf2.zig
add compiler_rt functions for f128
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fixuint.zig
compiler_rt implementations for __fixuns* functions
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fixunsdfdi_test.zig
compiler_rt implementations for __fixuns* functions
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fixunsdfdi.zig
compiler_rt implementations for __fixuns* functions
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fixunsdfsi_test.zig
compiler_rt implementations for __fixuns* functions
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fixunsdfsi.zig
compiler_rt implementations for __fixuns* functions
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fixunsdfti_test.zig
compiler_rt implementations for __fixuns* functions
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fixunsdfti.zig
compiler_rt implementations for __fixuns* functions
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fixunssfdi_test.zig
compiler_rt implementations for __fixuns* functions
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fixunssfdi.zig
compiler_rt implementations for __fixuns* functions
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fixunssfsi_test.zig
compiler_rt implementations for __fixuns* functions
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fixunssfsi.zig
compiler_rt implementations for __fixuns* functions
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fixunssfti_test.zig
compiler_rt implementations for __fixuns* functions
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fixunssfti.zig
compiler_rt implementations for __fixuns* functions
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fixunstfdi_test.zig
add compiler_rt functions for f128
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fixunstfdi.zig
compiler_rt implementations for __fixuns* functions
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fixunstfsi.zig
compiler_rt implementations for __fixuns* functions
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fixunstfti.zig
compiler_rt implementations for __fixuns* functions
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index.zig
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README.md
compiler_rt implementations for __fixuns* functions
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udivti3.zig
compiler_rt implementations for __fixuns* functions
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umodti3.zig
compiler_rt implementations for __fixuns* functions
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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.