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| # RUN: not llc -march=x86-64 -run-pass none -o /dev/null %s 2>&1 | FileCheck %s
--- |
define i32 @volatile_inc(i32* %x) {
entry:
%0 = load volatile i32, i32* %x
%1 = add i32 %0, 1
store volatile i32 %1, i32* %x
ret i32 %1
}
...
---
name: volatile_inc
tracksRegLiveness: true
liveins:
- { reg: '$rdi' }
body: |
bb.0.entry:
liveins: $rdi
; CHECK: [[@LINE+1]]:50: duplicate 'volatile' memory operand flag
$eax = MOV32rm $rdi, 1, _, 0, _ :: (volatile volatile load 4 from %ir.x)
$eax = INC32r killed $eax, implicit-def dead $eflags
MOV32mr killed $rdi, 1, _, 0, _, $eax :: (volatile store 4 into %ir.x)
RETQ $eax
...
|