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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s
@sc8 = external global i8
define void @atomic_maxmin_i8() {
; CHECK-LABEL: atomic_maxmin_i8:
; CHECK: # %bb.0:
; CHECK-NEXT: movb {{.*}}(%rip), %al
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB0_1: # %atomicrmw.start
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: cmpb $4, %al
; CHECK-NEXT: movl %eax, %ecx
; CHECK-NEXT: jg .LBB0_3
; CHECK-NEXT: # %bb.2: # %atomicrmw.start
; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=1
; CHECK-NEXT: movb $5, %cl
; CHECK-NEXT: .LBB0_3: # %atomicrmw.start
; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=1
; CHECK-NEXT: lock cmpxchgb %cl, {{.*}}(%rip)
; CHECK-NEXT: jne .LBB0_1
; CHECK-NEXT: # %bb.4: # %atomicrmw.end
; CHECK-NEXT: movb {{.*}}(%rip), %al
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB0_5: # %atomicrmw.start2
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: cmpb $7, %al
; CHECK-NEXT: movl %eax, %ecx
; CHECK-NEXT: jl .LBB0_7
; CHECK-NEXT: # %bb.6: # %atomicrmw.start2
; CHECK-NEXT: # in Loop: Header=BB0_5 Depth=1
; CHECK-NEXT: movb $6, %cl
; CHECK-NEXT: .LBB0_7: # %atomicrmw.start2
; CHECK-NEXT: # in Loop: Header=BB0_5 Depth=1
; CHECK-NEXT: lock cmpxchgb %cl, {{.*}}(%rip)
; CHECK-NEXT: jne .LBB0_5
; CHECK-NEXT: # %bb.8: # %atomicrmw.end1
; CHECK-NEXT: movb {{.*}}(%rip), %al
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB0_9: # %atomicrmw.start8
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: cmpb $7, %al
; CHECK-NEXT: movl %eax, %ecx
; CHECK-NEXT: ja .LBB0_11
; CHECK-NEXT: # %bb.10: # %atomicrmw.start8
; CHECK-NEXT: # in Loop: Header=BB0_9 Depth=1
; CHECK-NEXT: movb $7, %cl
; CHECK-NEXT: .LBB0_11: # %atomicrmw.start8
; CHECK-NEXT: # in Loop: Header=BB0_9 Depth=1
; CHECK-NEXT: lock cmpxchgb %cl, {{.*}}(%rip)
; CHECK-NEXT: jne .LBB0_9
; CHECK-NEXT: # %bb.12: # %atomicrmw.end7
; CHECK-NEXT: movb {{.*}}(%rip), %al
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB0_13: # %atomicrmw.start14
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: cmpb $9, %al
; CHECK-NEXT: movl %eax, %ecx
; CHECK-NEXT: jb .LBB0_15
; CHECK-NEXT: # %bb.14: # %atomicrmw.start14
; CHECK-NEXT: # in Loop: Header=BB0_13 Depth=1
; CHECK-NEXT: movb $8, %cl
; CHECK-NEXT: .LBB0_15: # %atomicrmw.start14
; CHECK-NEXT: # in Loop: Header=BB0_13 Depth=1
; CHECK-NEXT: lock cmpxchgb %cl, {{.*}}(%rip)
; CHECK-NEXT: jne .LBB0_13
; CHECK-NEXT: # %bb.16: # %atomicrmw.end13
; CHECK-NEXT: retq
%1 = atomicrmw max i8* @sc8, i8 5 acquire
%2 = atomicrmw min i8* @sc8, i8 6 acquire
%3 = atomicrmw umax i8* @sc8, i8 7 acquire
%4 = atomicrmw umin i8* @sc8, i8 8 acquire
ret void
}
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