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LLVM 18 regression: -OReleaseSmall crashes LLVM on x86_64-macos #19851

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andrewrk opened this issue May 3, 2024 · 0 comments
Open

LLVM 18 regression: -OReleaseSmall crashes LLVM on x86_64-macos #19851

andrewrk opened this issue May 3, 2024 · 0 comments
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arch-x86_64 backend-llvm The LLVM backend outputs an LLVM IR Module. bug Observed behavior contradicts documented or intended behavior os-macos regression It worked in a previous version of Zig, but stopped working. upstream An issue with a third party project that Zig uses.
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0.14.0

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@andrewrk
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andrewrk commented May 3, 2024

upstream bug report: llvm/llvm-project#91005

$ zig build-exe -target x86_64-macos -mcpu=ivybridge -OReleaseSmall
LLVM ERROR: Cannot select: t98: v8f16,ch = X86ISD::VBROADCAST_LOAD<(load (s16) from constant-pool)> t0, t106
  t106: i64 = X86ISD::WrapperRIP TargetConstantPool:i64<half 0xH7FFF> 0
    t105: i64 = TargetConstantPool<half 0xH7FFF> 0
In function: __mulhc3
Aborted (core dumped)
@andrewrk andrewrk added bug Observed behavior contradicts documented or intended behavior os-macos upstream An issue with a third party project that Zig uses. arch-x86_64 backend-llvm The LLVM backend outputs an LLVM IR Module. regression It worked in a previous version of Zig, but stopped working. labels May 3, 2024
@andrewrk andrewrk added this to the 0.14.0 milestone May 3, 2024
andrewrk added a commit that referenced this issue May 3, 2024
@andrewrk
disable x86_64-macos -OReleaseSmall tests
eae676f 
tracked by #19851
andrewrk added a commit that referenced this issue May 8, 2024
@andrewrk
disable x86_64-macos -OReleaseSmall tests
bc763ff 
tracked by #19851
andrewrk added a commit that referenced this issue May 9, 2024
@andrewrk
disable x86_64-macos -OReleaseSmall tests
107d4f6 
tracked by #19851
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arch-x86_64 backend-llvm The LLVM backend outputs an LLVM IR Module. bug Observed behavior contradicts documented or intended behavior os-macos regression It worked in a previous version of Zig, but stopped working. upstream An issue with a third party project that Zig uses.
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