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annotate test/Assembler/2002-08-22-DominanceProblem.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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children 54457678186b
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llvm-as %s -o /dev/null
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3 ; Dominance relationships is not calculated correctly for unreachable blocks,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 ; which causes the verifier to barf on this input.
95c75e76d11b LLVM 3.4
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 define i32 @test(i1 %b) {
95c75e76d11b LLVM 3.4
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7 BB0:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 ret i32 7 ; Loop is unreachable
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10 Loop: ; preds = %L2, %Loop
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 %B = phi i32 [ %B, %L2 ], [ %B, %Loop ] ;PHI has same value always.
95c75e76d11b LLVM 3.4
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12 br i1 %b, label %L2, label %Loop
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14 L2: ; preds = %Loop
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15 br label %Loop
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16 }
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