| ; RUN: opt < %s -globalopt -S | FileCheck %s |
| 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" |
| |
| @G = internal global i32* null |
| |
| define void @t() { |
| ; CHECK: @t() |
| ; CHECK-NOT: call i8* @malloc |
| ; CHECK-NEXT: ret void |
| %malloccall = tail call i8* @malloc(i64 mul (i64 100, i64 4)) |
| %P = bitcast i8* %malloccall to i32* |
| store i32* %P, i32** @G |
| %GV = load i32*, i32** @G |
| %GVe = getelementptr i32, i32* %GV, i32 40 |
| store i32 20, i32* %GVe |
| ret void |
| } |
| |
| declare noalias i8* @malloc(i64) |
| |
| define void @foo(i64 %Size) nounwind noinline #0 { |
| entry: |
| %0 = load i32*, i32** @G, align 4 |
| ret void |
| } |
| |
| attributes #0 = { "null-pointer-is-valid"="true" } |