| ; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s |
| ; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s |
| |
| @.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 |
| |
| ; Addr-of a variable passed into an invoke instruction. |
| ; safestack attribute |
| ; Requires protector and stack restore after landing pad. |
| define i32 @foo() uwtable safestack personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| entry: |
| ; CHECK: %[[SP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr |
| ; CHECK: %[[STATICTOP:.*]] = getelementptr i8, i8* %[[SP]], i32 -16 |
| %a = alloca i32, align 4 |
| %exn.slot = alloca i8* |
| %ehselector.slot = alloca i32 |
| store i32 0, i32* %a, align 4 |
| invoke void @_Z3exceptPi(i32* %a) |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret i32 0 |
| |
| lpad: |
| ; CHECK: landingpad |
| ; CHECK-NEXT: catch |
| %0 = landingpad { i8*, i32 } |
| catch i8* null |
| ; CHECK-NEXT: store i8* %[[STATICTOP]], i8** @__safestack_unsafe_stack_ptr |
| ret i32 0 |
| } |
| |
| declare void @_Z3exceptPi(i32*) |
| declare i32 @__gxx_personality_v0(...) |