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