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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/GlobalISel/regbankselect-dbg-value-physreg-crash.mir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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# RUN: llc -mtriple=x86_64-linux-gnu -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s
# RUN: llc -mtriple=x86_64-linux-gnu -regbankselect-greedy -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s
# This reproduces a pre-regbankselect GMIR where DBG_VALUE already carries a
# physical register. Regressions here used to crash when X86RegisterBankInfo
# queried LLT for non-vreg register operands.
--- |
define void @foo() {
entry:
ret void
}
!0 = distinct !DISubprogram(name: "foo", type: !3)
!1 = !DILocation(line: 1, column: 1, scope: !0)
!2 = !{null}
!3 = !DISubroutineType(types: !2)
...
---
name: foo
legalized: true
regBankSelected: false
body: |
bb.0:
liveins: $rdi
%0:_(p0) = COPY $rdi
DBG_VALUE $rdi, $noreg, 0, 0, debug-location !1
RET 0
...
# CHECK-LABEL: name: foo
# CHECK: %0:gpr(p0) = COPY $rdi
# CHECK: DBG_VALUE $rdi, $noreg, 0, 0