8ebb3eac02
The legacy PM is deprecated, so update a bunch of lit tests running opt to use the new PM syntax when specifying the pipeline. In this patch focus has been put on test cases for ConstantMerge, ConstraintElimination, CorrelatedValuePropagation, GlobalDCE, GlobalOpt, SCCP, TailCallElim and PredicateInfo. Differential Revision: https://reviews.llvm.org/D114516
28 lines
797 B
LLVM
28 lines
797 B
LLVM
; Test that PHI nodes and select instructions do not necessarily make stuff
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; non-constant.
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; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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; CHECK-NOT: global
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@X = internal global i32 4 ; <i32*> [#uses=2]
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@Y = internal global i32 5 ; <i32*> [#uses=2]
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define i32 @test1(i1 %C) {
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%P = select i1 %C, i32* @X, i32* @Y ; <i32*> [#uses=1]
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%V = load i32, i32* %P ; <i32> [#uses=1]
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ret i32 %V
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}
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define i32 @test2(i1 %C) {
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; <label>:0
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br i1 %C, label %T, label %Cont
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T: ; preds = %0
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br label %Cont
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Cont: ; preds = %T, %0
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%P = phi i32* [ @X, %0 ], [ @Y, %T ] ; <i32*> [#uses=1]
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%V = load i32, i32* %P ; <i32> [#uses=1]
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ret i32 %V
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}
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