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@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 7 8; array of [16 x i8] 9 10define void @foo(ptr %a) nounwind uwtable safestack { 11entry: 12 ; CHECK: %[[USP:.*]] = load ptr, ptr @__safestack_unsafe_stack_ptr 13 14 ; CHECK: %[[USST:.*]] = getelementptr i8, ptr %[[USP]], i32 -16 15 16 ; CHECK: store ptr %[[USST]], ptr @__safestack_unsafe_stack_ptr 17 18 %a.addr = alloca ptr, align 8 19 %buf = alloca [16 x i8], align 16 20 21 ; CHECK: %[[AADDR:.*]] = alloca ptr, align 8 22 ; CHECK: store ptr {{.*}}, ptr %[[AADDR]], align 8 23 store ptr %a, ptr %a.addr, align 8 24 25 ; CHECK: %[[A2:.*]] = load ptr, ptr %[[AADDR]], align 8 26 ; CHECK: %[[BUFPTR:.*]] = getelementptr i8, ptr %[[USP]], i32 -16 27 %a2 = load ptr, ptr %a.addr, align 8 28 29 ; CHECK: call ptr @strcpy(ptr %[[BUFPTR]], ptr %[[A2]]) 30 %call = call ptr @strcpy(ptr %buf, ptr %a2) 31 32 ; CHECK: store ptr %[[USP]], ptr @__safestack_unsafe_stack_ptr 33 ret void 34} 35 36declare ptr @strcpy(ptr, ptr) 37