1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -safe-stack < %s | FileCheck %s
3 ; RUN: opt -S -passes=safe-stack < %s | FileCheck %s
5 target triple = "x86_64-unknown-unknown"
7 define void @min_of_pointers(ptr %p) safestack {
8 ; CHECK-LABEL: @min_of_pointers(
9 ; CHECK-NEXT: [[UNSAFE_STACK_PTR:%.*]] = load ptr, ptr @__safestack_unsafe_stack_ptr, align 8
10 ; CHECK-NEXT: [[UNSAFE_STACK_STATIC_TOP:%.*]] = getelementptr i8, ptr [[UNSAFE_STACK_PTR]], i32 -16
11 ; CHECK-NEXT: store ptr [[UNSAFE_STACK_STATIC_TOP]], ptr @__safestack_unsafe_stack_ptr, align 8
12 ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[UNSAFE_STACK_PTR]], i32 -4
13 ; CHECK-NEXT: [[CMP:%.*]] = icmp ult ptr [[TMP1]], [[P:%.*]]
14 ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[UNSAFE_STACK_PTR]], i32 -4
15 ; CHECK-NEXT: [[S:%.*]] = select i1 [[CMP]], ptr [[TMP2]], ptr [[P]]
16 ; CHECK-NEXT: store i32 0, ptr [[S]], align 4
17 ; CHECK-NEXT: store ptr [[UNSAFE_STACK_PTR]], ptr @__safestack_unsafe_stack_ptr, align 8
18 ; CHECK-NEXT: ret void
21 %cmp = icmp ult ptr %a, %p
22 %s = select i1 %cmp, ptr %a, ptr %p