| ; RUN: llc -march=x86-64 < %s | FileCheck %s |
| @sc8 = external global i8 |
| |
| define void @atomic_maxmin_i8() { |
| ; CHECK: atomic_maxmin_i8 |
| %1 = atomicrmw max i8* @sc8, i8 5 acquire |
| ; CHECK: [[LABEL1:\.?LBB[0-9]+_[0-9]+]]: |
| ; CHECK: movsbl |
| ; CHECK: cmpl |
| ; CHECK: lock cmpxchgb |
| ; CHECK: jne [[LABEL1]] |
| %2 = atomicrmw min i8* @sc8, i8 6 acquire |
| ; CHECK: [[LABEL3:\.?LBB[0-9]+_[0-9]+]]: |
| ; CHECK: movsbl |
| ; CHECK: cmpl |
| ; CHECK: lock cmpxchgb |
| ; CHECK: jne [[LABEL3]] |
| %3 = atomicrmw umax i8* @sc8, i8 7 acquire |
| ; CHECK: [[LABEL5:\.?LBB[0-9]+_[0-9]+]]: |
| ; CHECK: movzbl |
| ; CHECK: cmpl |
| ; CHECK: lock cmpxchgb |
| ; CHECK: jne [[LABEL5]] |
| %4 = atomicrmw umin i8* @sc8, i8 8 acquire |
| ; CHECK: [[LABEL7:\.?LBB[0-9]+_[0-9]+]]: |
| ; CHECK: movzbl |
| ; CHECK: cmpl |
| ; CHECK: lock cmpxchgb |
| ; CHECK: jne [[LABEL7]] |
| ret void |
| } |
