forked from OSchip/llvm-project
96 lines
2.3 KiB
LLVM
96 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; XFAIL: *
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; RUN: opt < %s -basicaa -dse -enable-dse-memoryssa -S | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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declare void @unknown_func()
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define void @test6(i32* noalias %P) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: store i32 0, i32* [[P:%.*]]
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; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: br label [[BB3:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: call void @unknown_func()
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: store i32 0, i32* [[P]]
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; CHECK-NEXT: ret void
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;
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store i32 0, i32* %P
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br i1 true, label %bb1, label %bb2
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bb1:
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br label %bb3
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bb2:
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call void @unknown_func()
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br label %bb3
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bb3:
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store i32 0, i32* %P
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ret void
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}
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define i32 @test22(i32* %P, i32* noalias %Q, i32* %R) {
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; CHECK-LABEL: @test22(
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; CHECK-NEXT: store i32 2, i32* [[P:%.*]]
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; CHECK-NEXT: store i32 3, i32* [[Q:%.*]]
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; CHECK-NEXT: [[L:%.*]] = load i32, i32* [[R:%.*]]
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; CHECK-NEXT: ret i32 [[L]]
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;
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store i32 1, i32* %Q
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store i32 2, i32* %P
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store i32 3, i32* %Q
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%l = load i32, i32* %R
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ret i32 %l
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}
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define void @test23(i32* noalias %P) {
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; CHECK-LABEL: @test23(
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; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: br label [[BB3:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: call void @unknown_func()
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: store i32 0, i32* [[P:%.*]]
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; CHECK-NEXT: ret void
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;
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br i1 true, label %bb1, label %bb2
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bb1:
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store i32 0, i32* %P
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br label %bb3
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bb2:
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call void @unknown_func()
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br label %bb3
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bb3:
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store i32 0, i32* %P
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ret void
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}
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define void @test24(i32* noalias %P) {
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; CHECK-LABEL: @test24(
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; CHECK-NEXT: br i1 true, label [[BB2:%.*]], label [[BB1:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: br label [[BB3:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: call void @unknown_func()
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: store i32 0, i32* [[P:%.*]]
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; CHECK-NEXT: ret void
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;
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br i1 true, label %bb2, label %bb1
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bb1:
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store i32 0, i32* %P
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br label %bb3
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bb2:
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call void @unknown_func()
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br label %bb3
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bb3:
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store i32 0, i32* %P
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ret void
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}
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