40 lines
1.6 KiB
LLVM
40 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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define i64 @cmpxchg_0(ptr %ptr, i64 %compare, i64 %new_value) {
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; CHECK-LABEL: @cmpxchg_0(
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; CHECK-NEXT: [[T0:%.*]] = cmpxchg ptr [[PTR:%.*]], i64 [[COMPARE:%.*]], i64 [[NEW_VALUE:%.*]] seq_cst seq_cst, align 8
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; CHECK-NEXT: [[T2:%.*]] = extractvalue { i64, i1 } [[T0]], 0
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; CHECK-NEXT: ret i64 [[T2]]
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;
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%t0 = cmpxchg ptr %ptr, i64 %compare, i64 %new_value seq_cst seq_cst
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%t1 = extractvalue { i64, i1 } %t0, 1
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%t2 = extractvalue { i64, i1 } %t0, 0
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%t3 = select i1 %t1, i64 %compare, i64 %t2
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ret i64 %t3
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}
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define i64 @cmpxchg_1(ptr %ptr, i64 %compare, i64 %new_value) {
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; CHECK-LABEL: @cmpxchg_1(
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; CHECK-NEXT: [[T0:%.*]] = cmpxchg ptr [[PTR:%.*]], i64 [[COMPARE:%.*]], i64 [[NEW_VALUE:%.*]] seq_cst seq_cst, align 8
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; CHECK-NEXT: ret i64 [[COMPARE]]
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;
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%t0 = cmpxchg ptr %ptr, i64 %compare, i64 %new_value seq_cst seq_cst
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%t1 = extractvalue { i64, i1 } %t0, 1
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%t2 = extractvalue { i64, i1 } %t0, 0
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%t3 = select i1 %t1, i64 %t2, i64 %compare
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ret i64 %t3
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}
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define i64 @cmpxchg_2(ptr %ptr, i64 %compare, i64 %new_value) {
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; CHECK-LABEL: @cmpxchg_2(
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; CHECK-NEXT: [[T0:%.*]] = cmpxchg ptr [[PTR:%.*]], i64 [[COMPARE:%.*]], i64 [[NEW_VALUE:%.*]] acq_rel monotonic, align 8
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; CHECK-NEXT: ret i64 [[COMPARE]]
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;
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%t0 = cmpxchg ptr %ptr, i64 %compare, i64 %new_value acq_rel monotonic
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%t1 = extractvalue { i64, i1 } %t0, 1
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%t2 = extractvalue { i64, i1 } %t0, 0
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%t3 = select i1 %t1, i64 %compare, i64 %t2
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%t4 = select i1 %t1, i64 %t3, i64 %compare
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ret i64 %t4
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}
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