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.__jmp_buf_tag = type { [8 x i64], i32, %struct.__sigset_t } 5 %struct.__sigset_t = type { [16 x i64] } 6 7 @.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 8 @buf = internal global [1 x %struct.__jmp_buf_tag] zeroinitializer, align 16 9 10 ; setjmp/longjmp test. 11 ; Requires protector. 12 define i32 @foo() nounwind uwtable safestack { 13 entry: 14 ; CHECK: %[[SP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr 15 ; CHECK: %[[STATICTOP:.*]] = getelementptr i8, i8* %[[SP]], i32 -16 16 %retval = alloca i32, align 4 17 %x = alloca i32, align 4 18 store i32 0, i32* %retval 19 store i32 42, i32* %x, align 4 20 %call = call i32 @_setjmp(%struct.__jmp_buf_tag* getelementptr inbounds ([1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* @buf, i32 0, i32 0)) returns_twice 21 ; CHECK: setjmp 22 ; CHECK-NEXT: store i8* %[[STATICTOP]], i8** @__safestack_unsafe_stack_ptr 23 %tobool = icmp ne i32 %call, 0 24 br i1 %tobool, label %if.else, label %if.then 25 if.then: ; preds = %entry 26 call void @funcall(i32* %x) 27 br label %if.end 28 if.else: ; preds = %entry 29 call i32 (...) @dummy() 30 br label %if.end 31 if.end: ; preds = %if.else, %if.then 32 ret i32 0 33 } 34 35 declare i32 @_setjmp(%struct.__jmp_buf_tag*) 36 declare void @funcall(i32*) 37 declare i32 @dummy(...) 38
