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https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-22 10:29:35 +00:00
add some tests for memdep phi translation + PRE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89996 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -11,8 +11,7 @@ block2:
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; CHECK-NEXT: load i32* %p
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block3:
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%b = bitcast i32 0 to i32
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store i32 %b, i32* %p
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store i32 0, i32* %p
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br label %block4
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block4:
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@ -22,3 +21,55 @@ block4:
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; CHECK-NEXT: phi i32
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; CHECK-NEXT: ret i32
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}
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define i32 @test2(i32* %p, i32* %q, i1 %C) {
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; CHECK: @test2
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block1:
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br i1 %C, label %block2, label %block3
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block2:
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br label %block4
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; CHECK: block2:
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; CHECK-NEXT: load i32* %q
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block3:
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store i32 0, i32* %p
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br label %block4
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block4:
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%P2 = phi i32* [%p, %block3], [%q, %block2]
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%PRE = load i32* %P2
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ret i32 %PRE
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; CHECK: block4:
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; CHECK-NEXT: phi i32 [
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; CHECK-NOT: load
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; CHECK: ret i32
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}
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define i32 @test3(i32* %p, i32* %q, i32** %Hack, i1 %C) {
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; CHECK: @test3
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block1:
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%B = getelementptr i32* %q, i32 1
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store i32* %B, i32** %Hack
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br i1 %C, label %block2, label %block3
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block2:
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br label %block4
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; CHECK: block2:
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; CHECK-NEXT: load i32* %B
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block3:
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%A = getelementptr i32* %p, i32 1
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store i32 0, i32* %A
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br label %block4
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block4:
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%P2 = phi i32* [%p, %block3], [%q, %block2]
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%P3 = getelementptr i32* %P2, i32 1
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%PRE = load i32* %P3
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ret i32 %PRE
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; CHECK: block4:
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; CHECK-NEXT: phi i32 [
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; CHECK-NOT: load
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; CHECK: ret i32
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}
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