| commit | 292f34b0d3cb2a04be5ebb85aaeb838b29f71323 | |
| author | Nikita Popov <npopov@redhat.com> | |
| Mon, 30 Oct 2023 14:01:01 +0000 (30 15:01 +0100) | ||
| committer | GitHub <noreply@github.com> | |
| Mon, 30 Oct 2023 14:01:01 +0000 (30 15:01 +0100) | ||
| tree | 5f465f63b01af6c693b15b2441598744594c0dd6 | treesnapshot (tar.gz zip) |
| parent | 43a94cbafae13780f67ec4adac2a48863468671b | commitdiff |
[AArch64][GlobalISel] Fix incorrect ABI when tail call not supported (#70215)
The check for whether a tail call is supported calls
determineAssignments(), which may modify argument flags. As such, even
though the check fails and a non-tail call will be emitted, it will not
have a different (incorrect) ABI.
Fix this by operating on a separate copy of the arguments.
Fixes https://github.com/llvm/llvm-project/issues/70207.
The check for whether a tail call is supported calls
determineAssignments(), which may modify argument flags. As such, even
though the check fails and a non-tail call will be emitted, it will not
have a different (incorrect) ABI.
Fix this by operating on a separate copy of the arguments.
Fixes https://github.com/llvm/llvm-project/issues/70207.
| llvm/lib/Target/AArch64/GISel/AArch64CallLowering.cpp | diffblobblamehistory | |
| llvm/test/CodeGen/AArch64/GlobalISel/call-lowering-tail-call-fallback.ll | diffblobblamehistory |