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.foo = type { [16 x i8] } 7 8@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 9 10; struct { [16 x i8] } 11 12define void @foo(ptr %a) nounwind uwtable safestack { 13entry: 14 ; CHECK: %[[USP:.*]] = load ptr, ptr @__safestack_unsafe_stack_ptr 15 16 ; CHECK: %[[USST:.*]] = getelementptr i8, ptr %[[USP]], i32 -16 17 18 ; CHECK: store ptr %[[USST]], ptr @__safestack_unsafe_stack_ptr 19 20 %a.addr = alloca ptr, align 8 21 %buf = alloca %struct.foo, align 1 22 23 ; CHECK: %[[AADDR:.*]] = alloca ptr, align 8 24 ; CHECK: store ptr {{.*}}, ptr %[[AADDR]], align 8 25 store ptr %a, ptr %a.addr, align 8 26 27 ; CHECK: %[[A:.*]] = load ptr, ptr %[[AADDR]], align 8 28 ; CHECK: %[[BUFPTR:.*]] = getelementptr i8, ptr %[[USP]], i32 -16 29 %a2 = load ptr, ptr %a.addr, align 8 30 31 ; CHECK: call ptr @strcpy(ptr %[[BUFPTR]], ptr %[[A]]) 32 %call = call ptr @strcpy(ptr %buf, ptr %a2) 33 34 ; CHECK: store ptr %[[USP]], ptr @__safestack_unsafe_stack_ptr 35 ret void 36} 37 38declare ptr @strcpy(ptr, ptr) 39