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