; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s @sc8 = external dso_local global i8 define void @atomic_maxmin_i8() { ; CHECK-LABEL: atomic_maxmin_i8: ; CHECK: # %bb.0: ; CHECK-NEXT: movzbl sc8(%rip), %eax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: .LBB0_1: # %atomicrmw.start ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: cmpb $6, %al ; CHECK-NEXT: movzbl %al, %eax ; CHECK-NEXT: movl $5, %ecx ; CHECK-NEXT: cmovgel %eax, %ecx ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: lock cmpxchgb %cl, sc8(%rip) ; CHECK-NEXT: jne .LBB0_1 ; CHECK-NEXT: # %bb.2: # %atomicrmw.end ; CHECK-NEXT: movzbl sc8(%rip), %eax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: .LBB0_3: # %atomicrmw.start2 ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: cmpb $7, %al ; CHECK-NEXT: movzbl %al, %eax ; CHECK-NEXT: movl $6, %ecx ; CHECK-NEXT: cmovll %eax, %ecx ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: lock cmpxchgb %cl, sc8(%rip) ; CHECK-NEXT: jne .LBB0_3 ; CHECK-NEXT: # %bb.4: # %atomicrmw.end1 ; CHECK-NEXT: movzbl sc8(%rip), %eax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: .LBB0_5: # %atomicrmw.start8 ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: cmpb $8, %al ; CHECK-NEXT: movzbl %al, %eax ; CHECK-NEXT: movl $7, %ecx ; CHECK-NEXT: cmovael %eax, %ecx ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: lock cmpxchgb %cl, sc8(%rip) ; CHECK-NEXT: jne .LBB0_5 ; CHECK-NEXT: # %bb.6: # %atomicrmw.end7 ; CHECK-NEXT: movzbl sc8(%rip), %eax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: .LBB0_7: # %atomicrmw.start14 ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: cmpb $9, %al ; CHECK-NEXT: movzbl %al, %eax ; CHECK-NEXT: movl $8, %ecx ; CHECK-NEXT: cmovbl %eax, %ecx ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: lock cmpxchgb %cl, sc8(%rip) ; CHECK-NEXT: jne .LBB0_7 ; CHECK-NEXT: # %bb.8: # %atomicrmw.end13 ; CHECK-NEXT: retq %1 = atomicrmw max ptr @sc8, i8 5 acquire %2 = atomicrmw min ptr @sc8, i8 6 acquire %3 = atomicrmw umax ptr @sc8, i8 7 acquire %4 = atomicrmw umin ptr @sc8, i8 8 acquire ret void }