# 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 ...