| ; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s |
| ; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s |
| |
| %struct.deep = type { %union.anon } |
| %union.anon = type { %struct.anon } |
| %struct.anon = type { %struct.anon.0 } |
| %struct.anon.0 = type { %union.anon.1 } |
| %union.anon.1 = type { [2 x i8] } |
| |
| @.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 |
| |
| ; [2 x i8] nested in several layers of structs and unions |
| ; safestack attribute |
| ; Requires no protector. |
| ; CHECK-LABEL: @foo( |
| define signext i8 @foo() nounwind uwtable safestack { |
| entry: |
| ; CHECK-NOT: __safestack_unsafe_stack_ptr |
| %x = alloca %struct.deep, align 1 |
| %b = getelementptr inbounds %struct.deep, %struct.deep* %x, i32 0, i32 0 |
| %c = bitcast %union.anon* %b to %struct.anon* |
| %d = getelementptr inbounds %struct.anon, %struct.anon* %c, i32 0, i32 0 |
| %e = getelementptr inbounds %struct.anon.0, %struct.anon.0* %d, i32 0, i32 0 |
| %array = bitcast %union.anon.1* %e to [2 x i8]* |
| %arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %array, i32 0, i64 0 |
| %0 = load i8, i8* %arrayidx, align 1 |
| ret i8 %0 |
| } |
