zig/std/special/compiler_rt
Andrew Kelley 02c1b9df3b fix compiler-rt tests accidentally running std tests
also reduce the aggressiveness of std.atomic.stack
and std.atomic.queue fuzz testing. appveyor has 1 core
and 10,000 iterations is too much for 6 threads to
thrash over
2018-05-02 21:34:34 -04:00
..

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.