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28 lines
713 B
28 lines
713 B
# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
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--- |
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define i32 @volatile_inc(i32* %x) {
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entry:
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%0 = load volatile i32, i32* %x
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%1 = add i32 %0, 1
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store volatile i32 %1, i32* %x
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ret i32 %1
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}
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...
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---
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name: volatile_inc
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tracksRegLiveness: true
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liveins:
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- { reg: '%rdi' }
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body: |
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bb.0.entry:
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liveins: %rdi
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; CHECK: [[@LINE+1]]:50: duplicate 'volatile' memory operand flag
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%eax = MOV32rm %rdi, 1, _, 0, _ :: (volatile volatile load 4 from %ir.x)
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%eax = INC32r killed %eax, implicit-def dead %eflags
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MOV32mr killed %rdi, 1, _, 0, _, %eax :: (volatile store 4 into %ir.x)
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RETQ %eax
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...
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