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 4 %struct.foo = type { [16 x i8] } 5 6 @.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 7 8 ; struct { [16 x i8] } 9 10 define void @foo(i8* %a) nounwind uwtable safestack { 11 entry: 12 ; CHECK: %[[USP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr 13 14 ; CHECK: %[[USST:.*]] = getelementptr i8, i8* %[[USP]], i32 -16 15 16 ; CHECK: store i8* %[[USST]], i8** @__safestack_unsafe_stack_ptr 17 18 %a.addr = alloca i8*, align 8 19 %buf = alloca %struct.foo, align 1 20 21 ; CHECK: %[[AADDR:.*]] = alloca i8*, align 8 22 ; CHECK: store i8* {{.*}}, i8** %[[AADDR]], align 8 23 store i8* %a, i8** %a.addr, align 8 24 25 ; CHECK: %[[BUFPTR:.*]] = getelementptr i8, i8* %[[USP]], i32 -16 26 ; CHECK: %[[BUFPTR2:.*]] = bitcast i8* %[[BUFPTR]] to %struct.foo* 27 ; CHECK: %[[GEP:.*]] = getelementptr inbounds %struct.foo, %struct.foo* %[[BUFPTR2]], i32 0, i32 0, i32 0 28 %gep = getelementptr inbounds %struct.foo, %struct.foo* %buf, i32 0, i32 0, i32 0 29 30 ; CHECK: %[[A:.*]] = load i8*, i8** %[[AADDR]], align 8 31 %a2 = load i8*, i8** %a.addr, align 8 32 33 ; CHECK: call i8* @strcpy(i8* %[[GEP]], i8* %[[A]]) 34 %call = call i8* @strcpy(i8* %gep, i8* %a2) 35 36 ; CHECK: store i8* %[[USP]], i8** @__safestack_unsafe_stack_ptr 37 ret void 38 } 39 40 declare i8* @strcpy(i8*, i8*) 41
