1 ; RUN: opt -S -globals-aa -functionattrs < %s | FileCheck %s 2 ; RUN: opt -S -O3 < %s | FileCheck %s 3 4 ; Apart from checking for the direct cause of the bug, we also check 5 ; if any problematic aliasing rules have accidentally snuck into -O3. 6 ; 7 ; Since the "abc" operand bundle is not a special operand bundle that 8 ; LLVM knows about, all of the stores and loads in @test below have to 9 ; stay. 10 11 declare void @foo() readnone 12 13 ; CHECK-LABEL: define i8* @test(i8* %p) 14 ; CHECK: %a = alloca i8*, align 8 15 ; CHECK: store i8* %p, i8** %a, align 8 16 ; CHECK: call void @foo() [ "abc"(i8** %a) ] 17 ; CHECK: %reload = load i8*, i8** %a, align 8 18 ; CHECK: ret i8* %reload 19 ; CHECK: } 20 21 define i8* @test(i8* %p) { 22 %a = alloca i8*, align 8 23 store i8* %p, i8** %a, align 8 24 call void @foo() ["abc" (i8** %a)] 25 %reload = load i8*, i8** %a, align 8 26 ret i8* %reload 27 } 28
