forked from OSchip/llvm-project
26 lines
843 B
YAML
26 lines
843 B
YAML
# RUN: not --crash llc -march=aarch64 -o /dev/null -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
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# REQUIRES: aarch64-registered-target
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# Undef uses are illegal for generic vregs.
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---
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name: test_undef_use
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liveins:
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body: |
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bb.0:
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%0:_(s32) = G_CONSTANT i32 0
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; Test generic instruction
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; CHECK: *** Bad machine code: Generic virtual register use cannot be undef ***
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G_STORE %0, undef %1:_(p0) :: (store (s32))
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; Make sure this fails on a post-isel generic instruction.
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; CHECK: *** Bad machine code: Generic virtual register use cannot be undef ***
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$x0 = COPY undef %2:_(s64)
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; Make sure this fails with a target instruction
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; CHECK: *** Bad machine code: Generic virtual register use cannot be undef ***
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RET_ReallyLR implicit $x0, implicit undef %3:_(s32)
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...
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