1; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s 2; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s 3; RUN: opt -passes=safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s 4; RUN: opt -passes=safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s 5 6%struct.nest = type { %struct.pair, %struct.pair } 7%struct.pair = type { i32, i32 } 8 9@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 10 11; Nested structure, no arrays, no address-of expressions. 12; Verify that the resulting gep-of-gep does not incorrectly trigger 13; a safe stack protector. 14; safestack attribute 15; Requires no protector. 16; CHECK-LABEL: @foo( 17define void @foo() nounwind uwtable safestack { 18entry: 19 ; CHECK-NOT: __safestack_unsafe_stack_ptr 20 %c = alloca %struct.nest, align 4 21 %b = getelementptr inbounds %struct.nest, ptr %c, i32 0, i32 1 22 %0 = load i32, ptr %b, align 4 23 %call = call i32 (ptr, ...) @printf(ptr @.str, i32 %0) 24 ret void 25} 26 27declare i32 @printf(ptr, ...) 28