mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-27 13:29:50 +00:00
c1be92f3bb
does normal initialization and normal chaining. Change the default AliasAnalysis implementation to NoAlias. Update StandardCompileOpts.h and friends to explicitly request BasicAliasAnalysis. Update tests to explicitly request -basicaa. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116720 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
460 B
LLVM
25 lines
460 B
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
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define i32 @main(i32** %p) {
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block1:
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br i1 true, label %block2, label %block3
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block2:
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%a = load i32** %p
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br label %block4
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block3:
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%b = load i32** %p
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br label %block4
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block4:
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; CHECK-NOT: %existingPHI = phi
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; CHECK: %DEAD = phi
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%existingPHI = phi i32* [ %a, %block2 ], [ %b, %block3 ]
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%DEAD = load i32** %p
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%c = load i32* %DEAD
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%d = load i32* %existingPHI
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%e = add i32 %c, %d
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ret i32 %e
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}
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