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
47 lines
1.6 KiB
LLVM
47 lines
1.6 KiB
LLVM
; RUN: opt -S -passes=globalopt -o - < %s | FileCheck %s
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; No malloc promotion with non-null check.
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@_ZL3g_i = internal global i32* null, align 8
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@_ZL3g_j = global i32* null, align 8
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@.str = private unnamed_addr constant [2 x i8] c"0\00", align 1
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@.str.1 = private unnamed_addr constant [2 x i8] c"1\00", align 1
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define dso_local i32 @main() {
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store i32* null, i32** @_ZL3g_i, align 8
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call void @_ZL13PutsSomethingv()
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ret i32 0
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}
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; CHECK-LABEL: define {{.*}} @_ZL13PutsSomethingv()
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; CHECK-NEXT: [[TMP1:%.*]] = load i32*, i32** @_ZL3g_i, align 8
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; CHECK-NEXT: [[TMP2:%.*]] = load i32*, i32** @_ZL3g_j, align 8
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; CHECK-NEXT: icmp eq i32* [[TMP1]], [[TMP2]]
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define internal void @_ZL13PutsSomethingv() {
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%1 = load i32*, i32** @_ZL3g_i, align 8
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%2 = load i32*, i32** @_ZL3g_j, align 8
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%cmp = icmp eq i32* %1, %2
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br i1 %cmp, label %3, label %7
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3: ; preds = %0
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%4 = call noalias i8* @malloc(i64 4) #3
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%5 = bitcast i8* %4 to i32*
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store i32* %5, i32** @_ZL3g_i, align 8
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%6 = call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
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br label %9
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7: ; preds = %0
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%8 = call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
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br label %9
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9: ; preds = %7, %3
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ret void
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}
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declare dso_local noalias i8* @malloc(i64)
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declare dso_local i32 @puts(i8* nocapture readonly)
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