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