192 lines
4.0 KiB
LLVM
192 lines
4.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -jump-threading -S < %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 @test1(i1 %cond) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
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; CHECK: T2:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
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; CHECK-NEXT: call void @f3()
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; CHECK-NEXT: ret i32 [[V1]]
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; CHECK: F2:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
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; CHECK-NEXT: ret i32 [[V2]]
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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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%A = phi i1 [true, %T1], [false, %F1]
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%B = phi i32 [%v1, %T1], [%v2, %F1]
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%A.fr = freeze i1 %A
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br i1 %A.fr, label %T2, label %F2
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T2:
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call void @f3()
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ret i32 %B
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F2:
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ret i32 %B
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}
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define i32 @test1_cast(i1 %cond) {
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; CHECK-LABEL: @test1_cast(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
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; CHECK: T2:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
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; CHECK-NEXT: call void @f3()
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; CHECK-NEXT: ret i32 [[V1]]
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; CHECK: F2:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
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; CHECK-NEXT: [[A:%.*]] = trunc i32 0 to i1
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; CHECK-NEXT: ret i32 [[V2]]
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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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%A0 = phi i32 [1, %T1], [0, %F1]
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%B = phi i32 [%v1, %T1], [%v2, %F1]
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%A = trunc i32 %A0 to i1
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%A.fr = freeze i1 %A
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br i1 %A.fr, label %T2, label %F2
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T2:
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call void @f3()
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ret i32 %B
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F2:
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ret i32 %B
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}
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define i32 @test1_cast2(i1 %cond) {
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; CHECK-LABEL: @test1_cast2(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
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; CHECK: T2:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
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; CHECK-NEXT: call void @f3()
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; CHECK-NEXT: ret i32 [[V1]]
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; CHECK: F2:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
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; CHECK-NEXT: [[A0_FR:%.*]] = freeze i32 0
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; CHECK-NEXT: ret i32 [[V2]]
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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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%A0 = phi i32 [1, %T1], [0, %F1]
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%B = phi i32 [%v1, %T1], [%v2, %F1]
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%A0.fr = freeze i32 %A0
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%A.fr = trunc i32 %A0.fr to i1
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br i1 %A.fr, label %T2, label %F2
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T2:
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call void @f3()
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ret i32 %B
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F2:
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ret i32 %B
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}
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define i32 @test1_undef(i1 %cond) {
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; CHECK-LABEL: @test1_undef(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
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; CHECK: T2:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
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; CHECK-NEXT: call void @f3()
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; CHECK-NEXT: ret i32 [[V1]]
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; CHECK: F2:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
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; CHECK-NEXT: ret i32 [[V2]]
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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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%A = phi i1 [true, %T1], [undef, %F1]
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%B = phi i32 [%v1, %T1], [%v2, %F1]
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%A.fr = freeze i1 %A
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br i1 %A.fr, label %T2, label %F2
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T2:
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call void @f3()
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ret i32 %B
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F2:
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ret i32 %B
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}
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define i32 @test2(i1 %cond, i1 %cond2) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[MERGE_THREAD:%.*]], label [[MERGE:%.*]]
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; CHECK: Merge.thread:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
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; CHECK-NEXT: br label [[T2:%.*]]
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; CHECK: Merge:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
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; CHECK-NEXT: [[A_FR:%.*]] = freeze i1 [[COND2:%.*]]
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; CHECK-NEXT: br i1 [[A_FR]], label [[T2]], label [[F2:%.*]]
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; CHECK: T2:
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; CHECK-NEXT: [[B4:%.*]] = phi i32 [ [[V1]], [[MERGE_THREAD]] ], [ [[V2]], [[MERGE]] ]
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; CHECK-NEXT: call void @f3()
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; CHECK-NEXT: ret i32 [[B4]]
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; CHECK: F2:
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; CHECK-NEXT: ret i32 [[V2]]
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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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%A = phi i1 [true, %T1], [%cond2, %F1]
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%B = phi i32 [%v1, %T1], [%v2, %F1]
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%A.fr = freeze i1 %A
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br i1 %A.fr, label %T2, label %F2
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T2:
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call void @f3()
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ret i32 %B
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F2:
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ret i32 %B
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}
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