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
31 lines
675 B
LLVM
31 lines
675 B
LLVM
; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
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; This transformation is safe for atomic loads and stores; check that it works.
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@G = internal global i32 17
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@C = internal constant i32 222
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define i32 @test1() {
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%V = load atomic i32, i32* @G seq_cst, align 4
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%C = icmp eq i32 %V, 17
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br i1 %C, label %T, label %F
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T:
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store atomic i32 17, i32* @G seq_cst, align 4
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ret i32 %V
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F:
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store atomic i32 123, i32* @G seq_cst, align 4
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ret i32 0
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}
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; CHECK-LABEL: define i32 @test1(
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; CHECK-NOT: store
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; CHECK: ret i32 17
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define i32 @test2() {
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%V = load atomic i32, i32* @C seq_cst, align 4
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ret i32 %V
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}
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; CHECK-LABEL: define i32 @test2(
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; CHECK-NOT: load
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; CHECK: ret i32 222
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