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