28 lines
1 KiB
LLVM
28 lines
1 KiB
LLVM
|
; 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
|
||
|
|
; RUN: opt -passes=safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
|
||
|
|
; RUN: opt -passes=safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
|
||
|
|
|
||
|
|
%struct.nest = type { %struct.pair, %struct.pair }
|
||
|
|
%struct.pair = type { i32, i32 }
|
||
|
|
|
||
|
|
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
|
||
|
|
|
||
|
|
; Nested structure, no arrays, no address-of expressions.
|
||
|
|
; Verify that the resulting gep-of-gep does not incorrectly trigger
|
||
|
|
; a safe stack protector.
|
||
|
|
; safestack attribute
|
||
|
|
; Requires no protector.
|
||
|
|
; CHECK-LABEL: @foo(
|
||
|
|
define void @foo() nounwind uwtable safestack {
|
||
|
|
entry:
|
||
|
|
; CHECK-NOT: __safestack_unsafe_stack_ptr
|
||
|
|
%c = alloca %struct.nest, align 4
|
||
|
|
%b = getelementptr inbounds %struct.nest, ptr %c, i32 0, i32 1
|
||
|
|
%0 = load i32, ptr %b, align 4
|
||
|
|
%call = call i32 (ptr, ...) @printf(ptr @.str, i32 %0)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @printf(ptr, ...)
|