47 lines
1.0 KiB
LLVM
47 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; There should be no phi nodes left.
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; RUN: opt -S -passes=jump-threading < %s | FileCheck %s
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declare i32 @f1()
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declare i32 @f2()
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declare void @f3()
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define i32 @test(i1 %cond) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[MERGE:%.*]], label [[MERGE_THREAD:%.*]]
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; CHECK: Merge.thread:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
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; CHECK-NEXT: br label [[T2:%.*]]
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; CHECK: Merge:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
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; CHECK-NEXT: [[A:%.*]] = icmp ne i32 [[V1]], 42
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; CHECK-NEXT: br i1 [[A]], label [[T2]], label [[F2:%.*]]
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; CHECK: T2:
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; CHECK-NEXT: call void @f3()
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; CHECK-NEXT: ret i32 1
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; CHECK: F2:
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; CHECK-NEXT: ret i32 0
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;
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br i1 %cond, label %T1, label %F1
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T1:
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%v1 = call i32 @f1()
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br label %Merge
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F1:
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%v2 = call i32 @f2()
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br label %Merge
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Merge:
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%B = phi i32 [%v1, %T1], [12, %F1]
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%A = icmp ne i32 %B, 42
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br i1 %A, label %T2, label %F2
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T2:
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call void @f3()
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ret i32 1
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F2:
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ret i32 0
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}
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