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exporting a C var args function triggers LLVM assertion when targeting non-Darwin aarch64 #14096

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andrewrk opened this issue Dec 28, 2022 · 0 comments
Open

exporting a C var args function triggers LLVM assertion when targeting non-Darwin aarch64 #14096

andrewrk opened this issue Dec 28, 2022 · 0 comments
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arch-aarch64 64-bit ARM backend-llvm The LLVM backend outputs an LLVM IR Module. bug Observed behavior contradicts documented or intended behavior frontend Tokenization, parsing, AstGen, Sema, and Liveness. os-linux os-windows upstream An issue with a third party project that Zig uses.
Milestone
0.16.0

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@andrewrk
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Zig Version

0.11.0-dev.986+5ca1753ff

Steps to Reproduce and Observed Behavior

Enable the disabled behavior tests and then:

$ stage3/bin/zig test ../test/behavior.zig -I../test -target aarch64-windows
LLVM Emit Object... zig: /home/andy/Downloads/llvm-project-15/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:8597: llvm::SDValue llvm::AArch64TargetLowering::LowerVAARG(llvm::SDValue, llvm::SelectionDAG&) const: Assertion `Subtarget->isTargetDarwin() && "automatic va_arg instruction only works on Darwin"' failed.

Expected Behavior

tests passed
@andrewrk andrewrk added bug Observed behavior contradicts documented or intended behavior os-windows os-linux frontend Tokenization, parsing, AstGen, Sema, and Liveness. arch-aarch64 64-bit ARM labels Dec 28, 2022
@andrewrk andrewrk added this to the 0.11.0 milestone Dec 28, 2022
@andrewrk andrewrk added backend-llvm The LLVM backend outputs an LLVM IR Module. upstream An issue with a third party project that Zig uses. labels Dec 28, 2022
andrewrk added a commit that referenced this issue Dec 28, 2022
@andrewrk
disable failing C var arg behavior tests
a1d8235 
See tracking issue #14096
@andrewrk andrewrk changed the title exporting a C var args function does not work on aarch64 except for macos exporting a C var args function triggers LLVM assertion when targeting non-Darwin aarch64 Dec 28, 2022
@andrewrk andrewrk modified the milestones: 0.11.0, 0.12.0 Jun 19, 2023
@andrewrk andrewrk mentioned this issue Aug 25, 2023
Closed
andrewrk added a commit that referenced this issue Aug 25, 2023
@andrewrk
langref: disable var args example on aarch64-windows
bafd081 
See tracking issues #14096 and #16961.

Also, any time a test is skipped it should link to the open bug report
for it.
andrewrk added a commit that referenced this issue Sep 19, 2023
@andrewrk
langref: disable var args example on aarch64-windows
660b3e2 
See tracking issues #14096 and #16961.

Also, any time a test is skipped it should link to the open bug report
for it.
@andrewrk andrewrk modified the milestones: 0.14.0, 0.16.0 Feb 9, 2025
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arch-aarch64 64-bit ARM backend-llvm The LLVM backend outputs an LLVM IR Module. bug Observed behavior contradicts documented or intended behavior frontend Tokenization, parsing, AstGen, Sema, and Liveness. os-linux os-windows upstream An issue with a third party project that Zig uses.
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Milestone
0.16.0
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@andrewrk