forked from OSchip/llvm-project
70 lines
1.7 KiB
LLVM
70 lines
1.7 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 void @f()
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declare void @g()
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declare void @h()
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define i32 @test(i1 %cond, i1 %a, i1 %b) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[C:%.*]]
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; CHECK: A:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: br i1 [[A:%.*]], label [[EXIT1:%.*]], label [[EXIT2:%.*]]
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; CHECK: C:
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; CHECK-NEXT: call void @g()
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; CHECK-NEXT: br i1 [[B:%.*]], label [[EXIT1]], label [[EXIT2]]
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; CHECK: EXIT1:
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; CHECK-NEXT: ret i32 0
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; CHECK: EXIT2:
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; CHECK-NEXT: ret i32 1
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;
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br i1 %cond, label %A, label %B
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A:
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call void @f()
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br label %C
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B:
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call void @g()
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br label %C
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C:
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%p = phi i1 [%a, %A], [%b, %B] ; Check that this is removed
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br i1 %p, label %EXIT1, label %EXIT2
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EXIT1:
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ret i32 0
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EXIT2:
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ret i32 1
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}
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define i32 @test2(i1 %cond, i1 %a, i1 %b) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[C:%.*]]
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; CHECK: A:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: [[P_FR1:%.*]] = freeze i1 [[A:%.*]]
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; CHECK-NEXT: br i1 [[P_FR1]], label [[EXIT1:%.*]], label [[EXIT2:%.*]]
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; CHECK: C:
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; CHECK-NEXT: call void @g()
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; CHECK-NEXT: [[P_FR:%.*]] = freeze i1 [[B:%.*]]
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; CHECK-NEXT: br i1 [[P_FR]], label [[EXIT1]], label [[EXIT2]]
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; CHECK: EXIT1:
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; CHECK-NEXT: ret i32 0
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; CHECK: EXIT2:
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; CHECK-NEXT: ret i32 1
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;
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br i1 %cond, label %A, label %B
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A:
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call void @f()
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br label %C
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B:
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call void @g()
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br label %C
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C:
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%p = phi i1 [%a, %A], [%b, %B] ; Check that this is removed
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%p.fr = freeze i1 %p
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br i1 %p.fr, label %EXIT1, label %EXIT2
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EXIT1:
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ret i32 0
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EXIT2:
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ret i32 1
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}
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