40a469f79a
The first commit is identical to
69bec0afbb8f2aa0021d18ea38768360b16583a9.
The second commit fixes the instruction verification failures by
replacing the erroneous instruction with a trap after the error is
reported and adds `-verify-machineinstrs` to the tests added in the
original PR to catch the issue sooner.
After that change, all tests pass with both
`LLVM_ENABLE_EXPENSIVE_CHECKS={On,Off}`.
cc @RKSimon @e-kud @phoebewang @arsenm as reviewers on the original PR
15 lines
364 B
LLVM
15 lines
364 B
LLVM
; RUN: llc < %s -mtriple=x86_64-windows-gnu | FileCheck %s
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define void @foo() unnamed_addr #0 {
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start:
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%b = alloca i64, align 8
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%c = alloca [4294967295 x i8], align 1
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ret void
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}
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attributes #0 = { nonlazybind uwtable "probe-stack"="probe_stack" "target-cpu"="x86-64" }
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; CHECK-LABEL: foo:
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; CHECK: movabsq $4294967312, %rax
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; CHECK-NEXT: callq probe_stack
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