1 ; RUN: llc -march=x86-64 < %s | FileCheck %s 2 @sc8 = external global i8 3 4 define void @atomic_maxmin_i8() { 5 ; CHECK: atomic_maxmin_i8 6 %1 = atomicrmw max i8* @sc8, i8 5 acquire 7 ; CHECK: [[LABEL1:\.?LBB[0-9]+_[0-9]+]]: 8 ; CHECK: movsbl 9 ; CHECK: cmpl 10 ; CHECK: lock 11 ; CHECK-NEXT: cmpxchgb 12 ; CHECK: jne [[LABEL1]] 13 %2 = atomicrmw min i8* @sc8, i8 6 acquire 14 ; CHECK: [[LABEL3:\.?LBB[0-9]+_[0-9]+]]: 15 ; CHECK: movsbl 16 ; CHECK: cmpl 17 ; CHECK: lock 18 ; CHECK-NEXT: cmpxchgb 19 ; CHECK: jne [[LABEL3]] 20 %3 = atomicrmw umax i8* @sc8, i8 7 acquire 21 ; CHECK: [[LABEL5:\.?LBB[0-9]+_[0-9]+]]: 22 ; CHECK: movzbl 23 ; CHECK: cmpl 24 ; CHECK: lock 25 ; CHECK-NEXT: cmpxchgb 26 ; CHECK: jne [[LABEL5]] 27 %4 = atomicrmw umin i8* @sc8, i8 8 acquire 28 ; CHECK: [[LABEL7:\.?LBB[0-9]+_[0-9]+]]: 29 ; CHECK: movzbl 30 ; CHECK: cmpl 31 ; CHECK: lock 32 ; CHECK-NEXT: cmpxchgb 33 ; CHECK: jne [[LABEL7]] 34 ret void 35 } 36
