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
33 lines
967 B
LLVM
33 lines
967 B
LLVM
; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
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@G = internal global i32* null ; <i32**> [#uses=4]
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; CHECK-NOT: global
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define void @init() {
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%malloccall = tail call i8* @malloc(i64 4) ; <i8*> [#uses=1]
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%P = bitcast i8* %malloccall to i32* ; <i32*> [#uses=1]
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store i32* %P, i32** @G
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%GV = load i32*, i32** @G ; <i32*> [#uses=1]
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store i32 0, i32* %GV
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ret void
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}
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declare noalias i8* @malloc(i64)
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define i32 @get() {
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%GV = load i32*, i32** @G ; <i32*> [#uses=1]
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%V = load i32, i32* %GV ; <i32> [#uses=1]
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ret i32 %V
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; CHECK: ret i32 0
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}
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define void @foo(i64 %Size) nounwind noinline #0 {
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entry:
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%0 = load i32*, i32** @G, align 4
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ret void
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}
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attributes #0 = { null_pointer_is_valid }
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