[llvm-commits] [llvm] r173231 - in /llvm/trunk: docs/LangRef.rst lib/CodeGen/StackProtector.cpp test/CodeGen/X86/stack-protector.ll
Bill Wendling
isanbard at gmail.com
Tue Jan 22 22:43:53 PST 2013
Author: void
Date: Wed Jan 23 00:43:53 2013
New Revision: 173231
URL: http://llvm.org/viewvc/llvm-project?rev=173231&view=rev
Log:
Add the heuristic to differentiate SSPStrong from SSPRequired.
The requirements of the strong heuristic are:
* A Protector is required for functions which contain an array, regardless of
type or length.
* A Protector is required for functions which contain a structure/union which
contains an array, regardless of type or length. Note, there is no limit to
the depth of nesting.
* A protector is required when the address of a local variable (i.e., stack
based variable) is exposed. (E.g., such as through a local whose address is
taken as part of the RHS of an assignment or a local whose address is taken as
part of a function argument.)
Modified:
llvm/trunk/docs/LangRef.rst
llvm/trunk/lib/CodeGen/StackProtector.cpp
llvm/trunk/test/CodeGen/X86/stack-protector.ll
Modified: llvm/trunk/docs/LangRef.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.rst?rev=173231&r1=173230&r2=173231&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.rst (original)
+++ llvm/trunk/docs/LangRef.rst Wed Jan 23 00:43:53 2013
@@ -825,7 +825,11 @@
placed on the stack before the local variables that's checked upon
return from the function to see if it has been overwritten. A
heuristic is used to determine if a function needs stack protectors
- or not.
+ or not. The heuristic used will enable protectors for functions with:
+ - Character arrays larger than ``ssp-buffer-size`` (default 8).
+ - Aggregates containing character arrays larger than ``ssp-buffer-size``.
+ - Calls to alloca() with variable sizes or constant sizes greater than
+ ``ssp-buffer-size``.
If a function that has an ``ssp`` attribute is inlined into a
function that doesn't have an ``ssp`` attribute, then the resulting
@@ -841,8 +845,15 @@
an ``sspreq`` attribute.
``sspstrong``
This attribute indicates that the function should emit a stack smashing
- protector. Currently this attribute has the same effect as
- ``sspreq``. This overrides the ``ssp`` function attribute.
+ protector. This attribute causes a strong heuristic to be used when
+ determining if a function needs stack protectors. The strong heuristic
+ will enable protectors for functions with:
+ - Arrays of any size and type
+ - Aggregates containing an array of any size and type.
+ - Calls to alloca().
+ - Local variables that have had their address taken.
+
+ This overrides the ``ssp`` function attribute.
If a function that has an ``sspstrong`` attribute is inlined into a
function that doesn't have an ``sspstrong`` attribute, then the
Modified: llvm/trunk/lib/CodeGen/StackProtector.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/StackProtector.cpp?rev=173231&r1=173230&r2=173231&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/StackProtector.cpp (original)
+++ llvm/trunk/lib/CodeGen/StackProtector.cpp Wed Jan 23 00:43:53 2013
@@ -16,6 +16,8 @@
#define DEBUG_TYPE "stack-protector"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/IR/Attributes.h"
@@ -32,6 +34,10 @@
#include "llvm/Target/TargetOptions.h"
using namespace llvm;
+STATISTIC(NumFunProtected, "Number of functions protected");
+STATISTIC(NumAddrTaken, "Number of local variables that have their address"
+ " taken.");
+
namespace {
class StackProtector : public FunctionPass {
/// TLI - Keep a pointer of a TargetLowering to consult for determining
@@ -43,6 +49,12 @@
DominatorTree *DT;
+ /// VisitedPHIs - The set of PHI nodes visited when determining
+ /// if a variable's reference has been taken. This set
+ /// is maintained to ensure we don't visit the same PHI node multiple
+ /// times.
+ SmallPtrSet<const PHINode*, 16> VisitedPHIs;
+
/// InsertStackProtectors - Insert code into the prologue and epilogue of
/// the function.
///
@@ -58,11 +70,15 @@
/// ContainsProtectableArray - Check whether the type either is an array or
/// contains an array of sufficient size so that we need stack protectors
/// for it.
- bool ContainsProtectableArray(Type *Ty, bool InStruct = false) const;
+ bool ContainsProtectableArray(Type *Ty, bool Strong = false,
+ bool InStruct = false) const;
+
+ /// \brief Check whether a stack allocation has its address taken.
+ bool HasAddressTaken(const Instruction *AI);
/// RequiresStackProtector - Check whether or not this function needs a
/// stack protector based upon the stack protector level.
- bool RequiresStackProtector() const;
+ bool RequiresStackProtector();
public:
static char ID; // Pass identification, replacement for typeid.
StackProtector() : FunctionPass(ID), TLI(0) {
@@ -96,15 +112,21 @@
if (!RequiresStackProtector()) return false;
+ ++NumFunProtected;
return InsertStackProtectors();
}
/// ContainsProtectableArray - Check whether the type either is an array or
/// contains a char array of sufficient size so that we need stack protectors
/// for it.
-bool StackProtector::ContainsProtectableArray(Type *Ty, bool InStruct) const {
+bool StackProtector::ContainsProtectableArray(Type *Ty, bool Strong,
+ bool InStruct) const {
if (!Ty) return false;
if (ArrayType *AT = dyn_cast<ArrayType>(Ty)) {
+ // In strong mode any array, regardless of type and size, triggers a
+ // protector
+ if (Strong)
+ return true;
const TargetMachine &TM = TLI->getTargetMachine();
if (!AT->getElementType()->isIntegerTy(8)) {
Triple Trip(TM.getTargetTriple());
@@ -126,45 +148,103 @@
for (StructType::element_iterator I = ST->element_begin(),
E = ST->element_end(); I != E; ++I)
- if (ContainsProtectableArray(*I, true))
+ if (ContainsProtectableArray(*I, Strong, true))
return true;
return false;
}
-/// RequiresStackProtector - Check whether or not this function needs a stack
-/// protector based upon the stack protector level. The heuristic we use is to
-/// add a guard variable to functions that call alloca, and functions with
-/// buffers larger than SSPBufferSize bytes.
-bool StackProtector::RequiresStackProtector() const {
- if (F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
- Attribute::StackProtectReq))
- return true;
+bool StackProtector::HasAddressTaken(const Instruction *AI) {
+ for (Value::const_use_iterator UI = AI->use_begin(), UE = AI->use_end();
+ UI != UE; ++UI) {
+ const User *U = *UI;
+ if (const StoreInst *SI = dyn_cast<StoreInst>(U)) {
+ if (AI == SI->getValueOperand())
+ return true;
+ } else if (const PtrToIntInst *SI = dyn_cast<PtrToIntInst>(U)) {
+ if (AI == SI->getOperand(0))
+ return true;
+ } else if (isa<CallInst>(U)) {
+ return true;
+ } else if (isa<InvokeInst>(U)) {
+ return true;
+ } else if (const SelectInst *SI = dyn_cast<SelectInst>(U)) {
+ if (HasAddressTaken(SI))
+ return true;
+ } else if (const PHINode *PN = dyn_cast<PHINode>(U)) {
+ // Keep track of what PHI nodes we have already visited to ensure
+ // they are only visited once.
+ if (VisitedPHIs.insert(PN))
+ if (HasAddressTaken(PN))
+ return true;
+ } else if (const GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(U)) {
+ if (HasAddressTaken(GEP))
+ return true;
+ } else if (const BitCastInst *BI = dyn_cast<BitCastInst>(U)) {
+ if (HasAddressTaken(BI))
+ return true;
+ }
+ }
+ return false;
+}
- // FIXME: Dummy SSP-strong implementation. Default to required until
- // strong heuristic is implemented.
+/// \brief Check whether or not this function needs a stack protector based
+/// upon the stack protector level.
+///
+/// We use two heuristics: a standard (ssp) and strong (sspstrong).
+/// The standard heuristic which will add a guard variable to functions that
+/// call alloca with a either a variable size or a size >= SSPBufferSize,
+/// functions with character buffers larger than SSPBufferSize, and functions
+/// with aggregates containing character buffers larger than SSPBufferSize. The
+/// strong heuristic will add a guard variables to functions that call alloca
+/// regardless of size, functions with any buffer regardless of type and size,
+/// functions with aggregates that contain any buffer regardless of type and
+/// size, and functions that contain stack-based variables that have had their
+/// address taken.
+bool StackProtector::RequiresStackProtector() {
+ bool Strong = false;
if (F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
- Attribute::StackProtectStrong))
+ Attribute::StackProtectReq))
return true;
-
- if (!F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
- Attribute::StackProtect))
+ else if (F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
+ Attribute::StackProtectStrong))
+ Strong = true;
+ else if (!F->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
+ Attribute::StackProtect))
return false;
for (Function::iterator I = F->begin(), E = F->end(); I != E; ++I) {
BasicBlock *BB = I;
for (BasicBlock::iterator
- II = BB->begin(), IE = BB->end(); II != IE; ++II)
+ II = BB->begin(), IE = BB->end(); II != IE; ++II) {
if (AllocaInst *AI = dyn_cast<AllocaInst>(II)) {
- if (AI->isArrayAllocation())
- // This is a call to alloca with a variable size. Emit stack
- // protectors.
+ if (AI->isArrayAllocation()) {
+ // SSP-Strong: Enable protectors for any call to alloca, regardless
+ // of size.
+ if (Strong)
+ return true;
+
+ if (const ConstantInt *CI =
+ dyn_cast<ConstantInt>(AI->getArraySize())) {
+ unsigned BufferSize = TLI->getTargetMachine().Options.SSPBufferSize;
+ if (CI->getLimitedValue(BufferSize) >= BufferSize)
+ // A call to alloca with size >= SSPBufferSize requires
+ // stack protectors.
+ return true;
+ } else // A call to alloca with a variable size requires protectors.
+ return true;
+ }
+
+ if (ContainsProtectableArray(AI->getAllocatedType(), Strong))
return true;
- if (ContainsProtectableArray(AI->getAllocatedType()))
+ if (Strong && HasAddressTaken(AI)) {
+ ++NumAddrTaken;
return true;
+ }
}
+ }
}
return false;
Modified: llvm/trunk/test/CodeGen/X86/stack-protector.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/stack-protector.ll?rev=173231&r1=173230&r2=173231&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/stack-protector.ll (original)
+++ llvm/trunk/test/CodeGen/X86/stack-protector.ll Wed Jan 23 00:43:53 2013
@@ -2,10 +2,19 @@
; RUN: llc -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck --check-prefix=LINUX-X64 %s
; RUN: llc -code-model=kernel -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck --check-prefix=LINUX-KERNEL-X64 %s
; RUN: llc -mtriple=x86_64-apple-darwin < %s -o - | FileCheck --check-prefix=DARWIN-X64 %s
-; FIXME: Update and expand test when strong heuristic is implemented.
%struct.foo = type { [16 x i8] }
%struct.foo.0 = type { [4 x i8] }
+%struct.pair = type { i32, i32 }
+%struct.nest = type { %struct.pair, %struct.pair }
+%struct.vec = type { <4 x i32> }
+%class.A = type { [2 x i8] }
+%struct.deep = type { %union.anon }
+%union.anon = type { %struct.anon }
+%struct.anon = type { %struct.anon.0 }
+%struct.anon.0 = type { %union.anon.1 }
+%union.anon.1 = type { [2 x i8] }
+%struct.small = type { i8 }
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
@@ -577,26 +586,24 @@
; test5c: no arrays / no nested arrays
; sspstrong attribute
-; Requires protector.
-; FIXME: Once strong heuristic is implemented, this should _not_ require
-; a protector
+; Requires no protector.
define void @test5c(i8* %a) nounwind uwtable sspstrong {
entry:
; LINUX-I386: test5c:
-; LINUX-I386: mov{{l|q}} %gs:
-; LINUX-I386: calll __stack_chk_fail
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
; LINUX-X64: test5c:
-; LINUX-X64: mov{{l|q}} %fs:
-; LINUX-X64: callq __stack_chk_fail
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
; LINUX-KERNEL-X64: test5c:
-; LINUX-KERNEL-X64: mov{{l|q}} %gs:
-; LINUX-KERNEL-X64: callq __stack_chk_fail
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
; DARWIN-X64: test5c:
-; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
-; DARWIN-X64: callq ___stack_chk_fail
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
%a.addr = alloca i8*, align 8
store i8* %a, i8** %a.addr, align 8
%0 = load i8** %a.addr, align 8
@@ -631,5 +638,2504 @@
ret void
}
+; test6a: Address-of local taken (j = &a)
+; no ssp attribute
+; Requires no protector.
+define void @test6a() nounwind uwtable {
+entry:
+; LINUX-I386: test6a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test6a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test6a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test6a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %retval = alloca i32, align 4
+ %a = alloca i32, align 4
+ %j = alloca i32*, align 8
+ store i32 0, i32* %retval
+ %0 = load i32* %a, align 4
+ %add = add nsw i32 %0, 1
+ store i32 %add, i32* %a, align 4
+ store i32* %a, i32** %j, align 8
+ ret void
+}
+
+; test6b: Address-of local taken (j = &a)
+; ssp attribute
+; Requires no protector.
+define void @test6b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test6b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test6b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test6b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test6b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %retval = alloca i32, align 4
+ %a = alloca i32, align 4
+ %j = alloca i32*, align 8
+ store i32 0, i32* %retval
+ %0 = load i32* %a, align 4
+ %add = add nsw i32 %0, 1
+ store i32 %add, i32* %a, align 4
+ store i32* %a, i32** %j, align 8
+ ret void
+}
+
+; test6c: Address-of local taken (j = &a)
+; sspstrong attribute
+; Requires protector.
+define void @test6c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test6c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test6c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test6c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test6c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %retval = alloca i32, align 4
+ %a = alloca i32, align 4
+ %j = alloca i32*, align 8
+ store i32 0, i32* %retval
+ %0 = load i32* %a, align 4
+ %add = add nsw i32 %0, 1
+ store i32 %add, i32* %a, align 4
+ store i32* %a, i32** %j, align 8
+ ret void
+}
+
+; test6d: Address-of local taken (j = &a)
+; sspreq attribute
+; Requires protector.
+define void @test6d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test6d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test6d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test6d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test6d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %retval = alloca i32, align 4
+ %a = alloca i32, align 4
+ %j = alloca i32*, align 8
+ store i32 0, i32* %retval
+ %0 = load i32* %a, align 4
+ %add = add nsw i32 %0, 1
+ store i32 %add, i32* %a, align 4
+ store i32* %a, i32** %j, align 8
+ ret void
+}
+
+; test7a: PtrToInt Cast
+; no ssp attribute
+; Requires no protector.
+define void @test7a() nounwind uwtable readnone {
+entry:
+; LINUX-I386: test7a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test7a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test7a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test7a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ %0 = ptrtoint i32* %a to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test7b: PtrToInt Cast
+; ssp attribute
+; Requires no protector.
+define void @test7b() nounwind uwtable readnone ssp {
+entry:
+; LINUX-I386: test7b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test7b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test7b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test7b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ %0 = ptrtoint i32* %a to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test7c: PtrToInt Cast
+; sspstrong attribute
+; Requires protector.
+define void @test7c() nounwind uwtable readnone sspstrong {
+entry:
+; LINUX-I386: test7c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test7c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test7c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test7c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ %0 = ptrtoint i32* %a to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test7d: PtrToInt Cast
+; sspreq attribute
+; Requires protector.
+define void @test7d() nounwind uwtable readnone sspreq {
+entry:
+; LINUX-I386: test7d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test7d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test7d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test7d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ %0 = ptrtoint i32* %a to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test8a: Passing addr-of to function call
+; no ssp attribute
+; Requires no protector.
+define void @test8a() nounwind uwtable {
+entry:
+; LINUX-I386: test8a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test8a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test8a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test8a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %b = alloca i32, align 4
+ call void @funcall(i32* %b) nounwind
+ ret void
+}
+
+; test8b: Passing addr-of to function call
+; ssp attribute
+; Requires no protector.
+define void @test8b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test8b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test8b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test8b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test8b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %b = alloca i32, align 4
+ call void @funcall(i32* %b) nounwind
+ ret void
+}
+
+; test8c: Passing addr-of to function call
+; sspstrong attribute
+; Requires protector.
+define void @test8c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test8c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test8c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test8c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test8c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %b = alloca i32, align 4
+ call void @funcall(i32* %b) nounwind
+ ret void
+}
+
+; test8d: Passing addr-of to function call
+; sspreq attribute
+; Requires protector.
+define void @test8d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test8d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test8d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test8d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test8d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %b = alloca i32, align 4
+ call void @funcall(i32* %b) nounwind
+ ret void
+}
+
+; test9a: Addr-of in select instruction
+; no ssp attribute
+; Requires no protector.
+define void @test9a() nounwind uwtable {
+entry:
+; LINUX-I386: test9a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test9a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test9a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test9a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp2 = fcmp ogt double %call, 0.000000e+00
+ %y.1 = select i1 %cmp2, double* %x, double* null
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), double* %y.1)
+ ret void
+}
+
+; test9b: Addr-of in select instruction
+; ssp attribute
+; Requires no protector.
+define void @test9b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test9b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test9b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test9b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test9b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp2 = fcmp ogt double %call, 0.000000e+00
+ %y.1 = select i1 %cmp2, double* %x, double* null
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), double* %y.1)
+ ret void
+}
+
+; test9c: Addr-of in select instruction
+; sspstrong attribute
+; Requires protector.
+define void @test9c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test9c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test9c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test9c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test9c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp2 = fcmp ogt double %call, 0.000000e+00
+ %y.1 = select i1 %cmp2, double* %x, double* null
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), double* %y.1)
+ ret void
+}
+
+; test9d: Addr-of in select instruction
+; sspreq attribute
+; Requires protector.
+define void @test9d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test9d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test9d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test9d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test9d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp2 = fcmp ogt double %call, 0.000000e+00
+ %y.1 = select i1 %cmp2, double* %x, double* null
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), double* %y.1)
+ ret void
+}
+
+; test10a: Addr-of in phi instruction
+; no ssp attribute
+; Requires no protector.
+define void @test10a() nounwind uwtable {
+entry:
+; LINUX-I386: test10a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test10a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test10a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test10a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp = fcmp ogt double %call, 3.140000e+00
+ br i1 %cmp, label %if.then, label %if.else
+
+if.then: ; preds = %entry
+ %call1 = call double @testi_aux() nounwind
+ store double %call1, double* %x, align 8
+ br label %if.end4
+
+if.else: ; preds = %entry
+ %cmp2 = fcmp ogt double %call, 1.000000e+00
+ br i1 %cmp2, label %if.then3, label %if.end4
+
+if.then3: ; preds = %if.else
+ br label %if.end4
+
+if.end4: ; preds = %if.else, %if.then3, %if.then
+ %y.0 = phi double* [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ]
+ %call5 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), double* %y.0) nounwind
+ ret void
+}
+
+; test10b: Addr-of in phi instruction
+; ssp attribute
+; Requires no protector.
+define void @test10b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test10b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test10b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test10b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test10b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp = fcmp ogt double %call, 3.140000e+00
+ br i1 %cmp, label %if.then, label %if.else
+
+if.then: ; preds = %entry
+ %call1 = call double @testi_aux() nounwind
+ store double %call1, double* %x, align 8
+ br label %if.end4
+
+if.else: ; preds = %entry
+ %cmp2 = fcmp ogt double %call, 1.000000e+00
+ br i1 %cmp2, label %if.then3, label %if.end4
+
+if.then3: ; preds = %if.else
+ br label %if.end4
+
+if.end4: ; preds = %if.else, %if.then3, %if.then
+ %y.0 = phi double* [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ]
+ %call5 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), double* %y.0) nounwind
+ ret void
+}
+
+; test10c: Addr-of in phi instruction
+; sspstrong attribute
+; Requires protector.
+define void @test10c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test10c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test10c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test10c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test10c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp = fcmp ogt double %call, 3.140000e+00
+ br i1 %cmp, label %if.then, label %if.else
+
+if.then: ; preds = %entry
+ %call1 = call double @testi_aux() nounwind
+ store double %call1, double* %x, align 8
+ br label %if.end4
+
+if.else: ; preds = %entry
+ %cmp2 = fcmp ogt double %call, 1.000000e+00
+ br i1 %cmp2, label %if.then3, label %if.end4
+
+if.then3: ; preds = %if.else
+ br label %if.end4
+
+if.end4: ; preds = %if.else, %if.then3, %if.then
+ %y.0 = phi double* [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ]
+ %call5 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), double* %y.0) nounwind
+ ret void
+}
+
+; test10d: Addr-of in phi instruction
+; sspreq attribute
+; Requires protector.
+define void @test10d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test10d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test10d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test10d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test10d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %x = alloca double, align 8
+ %call = call double @testi_aux() nounwind
+ store double %call, double* %x, align 8
+ %cmp = fcmp ogt double %call, 3.140000e+00
+ br i1 %cmp, label %if.then, label %if.else
+
+if.then: ; preds = %entry
+ %call1 = call double @testi_aux() nounwind
+ store double %call1, double* %x, align 8
+ br label %if.end4
+
+if.else: ; preds = %entry
+ %cmp2 = fcmp ogt double %call, 1.000000e+00
+ br i1 %cmp2, label %if.then3, label %if.end4
+
+if.then3: ; preds = %if.else
+ br label %if.end4
+
+if.end4: ; preds = %if.else, %if.then3, %if.then
+ %y.0 = phi double* [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ]
+ %call5 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), double* %y.0) nounwind
+ ret void
+}
+
+; test11a: Addr-of struct element. (GEP followed by store).
+; no ssp attribute
+; Requires no protector.
+define void @test11a() nounwind uwtable {
+entry:
+; LINUX-I386: test11a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test11a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test11a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test11a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ store i32* %y, i32** %b, align 8
+ %0 = load i32** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32* %0)
+ ret void
+}
+
+; test11b: Addr-of struct element. (GEP followed by store).
+; ssp attribute
+; Requires no protector.
+define void @test11b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test11b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test11b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test11b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test11b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ store i32* %y, i32** %b, align 8
+ %0 = load i32** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32* %0)
+ ret void
+}
+
+; test11c: Addr-of struct element. (GEP followed by store).
+; sspstrong attribute
+; Requires protector.
+define void @test11c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test11c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test11c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test11c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test11c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ store i32* %y, i32** %b, align 8
+ %0 = load i32** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32* %0)
+ ret void
+}
+
+; test11d: Addr-of struct element. (GEP followed by store).
+; sspreq attribute
+; Requires protector.
+define void @test11d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test11d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test11d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test11d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test11d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ store i32* %y, i32** %b, align 8
+ %0 = load i32** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32* %0)
+ ret void
+}
+
+; test12a: Addr-of struct element, GEP followed by ptrtoint.
+; no ssp attribute
+; Requires no protector.
+define void @test12a() nounwind uwtable {
+entry:
+; LINUX-I386: test12a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test12a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test12a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test12a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ %0 = ptrtoint i32* %y to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test12b: Addr-of struct element, GEP followed by ptrtoint.
+; ssp attribute
+; Requires no protector.
+define void @test12b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test12b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test12b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test12b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test12b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ %0 = ptrtoint i32* %y to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test12c: Addr-of struct element, GEP followed by ptrtoint.
+; sspstrong attribute
+; Requires protector.
+define void @test12c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test12c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test12c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test12c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test12c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ %0 = ptrtoint i32* %y to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test12d: Addr-of struct element, GEP followed by ptrtoint.
+; sspreq attribute
+; Requires protector.
+define void @test12d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test12d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test12d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test12d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test12d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %b = alloca i32*, align 8
+ %y = getelementptr inbounds %struct.pair* %c, i32 0, i32 1
+ %0 = ptrtoint i32* %y to i64
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i64 %0)
+ ret void
+}
+
+; test13a: Addr-of struct element, GEP followed by callinst.
+; no ssp attribute
+; Requires no protector.
+define void @test13a() nounwind uwtable {
+entry:
+; LINUX-I386: test13a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test13a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test13a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test13a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %y = getelementptr inbounds %struct.pair* %c, i64 0, i32 1
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %y) nounwind
+ ret void
+}
+
+; test13b: Addr-of struct element, GEP followed by callinst.
+; ssp attribute
+; Requires no protector.
+define void @test13b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test13b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test13b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test13b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test13b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %y = getelementptr inbounds %struct.pair* %c, i64 0, i32 1
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %y) nounwind
+ ret void
+}
+
+; test13c: Addr-of struct element, GEP followed by callinst.
+; sspstrong attribute
+; Requires protector.
+define void @test13c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test13c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test13c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test13c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test13c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %y = getelementptr inbounds %struct.pair* %c, i64 0, i32 1
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %y) nounwind
+ ret void
+}
+
+; test13d: Addr-of struct element, GEP followed by callinst.
+; sspreq attribute
+; Requires protector.
+define void @test13d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test13d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test13d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test13d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test13d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %y = getelementptr inbounds %struct.pair* %c, i64 0, i32 1
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %y) nounwind
+ ret void
+}
+
+; test14a: Addr-of a local, optimized into a GEP (e.g., &a - 12)
+; no ssp attribute
+; Requires no protector.
+define void @test14a() nounwind uwtable {
+entry:
+; LINUX-I386: test14a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test14a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test14a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test14a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ %add.ptr5 = getelementptr inbounds i32* %a, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %add.ptr5) nounwind
+ ret void
+}
+
+; test14b: Addr-of a local, optimized into a GEP (e.g., &a - 12)
+; ssp attribute
+; Requires no protector.
+define void @test14b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test14b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test14b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test14b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test14b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ %add.ptr5 = getelementptr inbounds i32* %a, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %add.ptr5) nounwind
+ ret void
+}
+
+; test14c: Addr-of a local, optimized into a GEP (e.g., &a - 12)
+; sspstrong attribute
+; Requires protector.
+define void @test14c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test14c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test14c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test14c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test14c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ %add.ptr5 = getelementptr inbounds i32* %a, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %add.ptr5) nounwind
+ ret void
+}
+
+; test14d: Addr-of a local, optimized into a GEP (e.g., &a - 12)
+; sspreq attribute
+; Requires protector.
+define void @test14d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test14d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test14d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test14d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test14d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ %add.ptr5 = getelementptr inbounds i32* %a, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32* %add.ptr5) nounwind
+ ret void
+}
+
+; test15a: Addr-of a local cast to a ptr of a different type
+; (e.g., int a; ... ; float *b = &a;)
+; no ssp attribute
+; Requires no protector.
+define void @test15a() nounwind uwtable {
+entry:
+; LINUX-I386: test15a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test15a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test15a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test15a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ %b = alloca float*, align 8
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ store float* %0, float** %b, align 8
+ %1 = load float** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), float* %1)
+ ret void
+}
+
+; test15b: Addr-of a local cast to a ptr of a different type
+; (e.g., int a; ... ; float *b = &a;)
+; ssp attribute
+; Requires no protector.
+define void @test15b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test15b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test15b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test15b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test15b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ %b = alloca float*, align 8
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ store float* %0, float** %b, align 8
+ %1 = load float** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), float* %1)
+ ret void
+}
+
+; test15c: Addr-of a local cast to a ptr of a different type
+; (e.g., int a; ... ; float *b = &a;)
+; sspstrong attribute
+; Requires protector.
+define void @test15c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test15c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test15c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test15c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test15c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ %b = alloca float*, align 8
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ store float* %0, float** %b, align 8
+ %1 = load float** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), float* %1)
+ ret void
+}
+
+; test15d: Addr-of a local cast to a ptr of a different type
+; (e.g., int a; ... ; float *b = &a;)
+; sspreq attribute
+; Requires protector.
+define void @test15d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test15d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test15d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test15d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test15d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ %b = alloca float*, align 8
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ store float* %0, float** %b, align 8
+ %1 = load float** %b, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), float* %1)
+ ret void
+}
+
+; test16a: Addr-of a local cast to a ptr of a different type (optimized)
+; (e.g., int a; ... ; float *b = &a;)
+; no ssp attribute
+; Requires no protector.
+define void @test16a() nounwind uwtable {
+entry:
+; LINUX-I386: test16a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test16a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test16a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test16a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ call void @funfloat(float* %0) nounwind
+ ret void
+}
+
+; test16b: Addr-of a local cast to a ptr of a different type (optimized)
+; (e.g., int a; ... ; float *b = &a;)
+; ssp attribute
+; Requires no protector.
+define void @test16b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test16b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test16b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test16b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test16b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32, align 4
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ call void @funfloat(float* %0) nounwind
+ ret void
+}
+
+; test16c: Addr-of a local cast to a ptr of a different type (optimized)
+; (e.g., int a; ... ; float *b = &a;)
+; sspstrong attribute
+; Requires protector.
+define void @test16c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test16c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test16c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test16c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test16c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ call void @funfloat(float* %0) nounwind
+ ret void
+}
+
+; test16d: Addr-of a local cast to a ptr of a different type (optimized)
+; (e.g., int a; ... ; float *b = &a;)
+; sspreq attribute
+; Requires protector.
+define void @test16d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test16d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test16d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test16d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test16d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32, align 4
+ store i32 0, i32* %a, align 4
+ %0 = bitcast i32* %a to float*
+ call void @funfloat(float* %0) nounwind
+ ret void
+}
+
+; test17a: Addr-of a vector nested in a struct
+; no ssp attribute
+; Requires no protector.
+define void @test17a() nounwind uwtable {
+entry:
+; LINUX-I386: test17a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test17a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test17a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test17a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.vec, align 16
+ %y = getelementptr inbounds %struct.vec* %c, i64 0, i32 0
+ %add.ptr = getelementptr inbounds <4 x i32>* %y, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), <4 x i32>* %add.ptr) nounwind
+ ret void
+}
+
+; test17b: Addr-of a vector nested in a struct
+; ssp attribute
+; Requires no protector.
+define void @test17b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test17b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test17b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test17b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test17b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.vec, align 16
+ %y = getelementptr inbounds %struct.vec* %c, i64 0, i32 0
+ %add.ptr = getelementptr inbounds <4 x i32>* %y, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), <4 x i32>* %add.ptr) nounwind
+ ret void
+}
+
+; test17c: Addr-of a vector nested in a struct
+; sspstrong attribute
+; Requires protector.
+define void @test17c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test17c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test17c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test17c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test17c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.vec, align 16
+ %y = getelementptr inbounds %struct.vec* %c, i64 0, i32 0
+ %add.ptr = getelementptr inbounds <4 x i32>* %y, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), <4 x i32>* %add.ptr) nounwind
+ ret void
+}
+
+; test17d: Addr-of a vector nested in a struct
+; sspreq attribute
+; Requires protector.
+define void @test17d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test17d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test17d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test17d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test17d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.vec, align 16
+ %y = getelementptr inbounds %struct.vec* %c, i64 0, i32 0
+ %add.ptr = getelementptr inbounds <4 x i32>* %y, i64 -12
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), <4 x i32>* %add.ptr) nounwind
+ ret void
+}
+
+; test18a: Addr-of a variable passed into an invoke instruction.
+; no ssp attribute
+; Requires no protector.
+define i32 @test18a() uwtable {
+entry:
+; LINUX-I386: test18a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test18a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test18a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test18a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %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:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test18b: Addr-of a variable passed into an invoke instruction.
+; ssp attribute
+; Requires no protector.
+define i32 @test18b() uwtable ssp {
+entry:
+; LINUX-I386: test18b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test18b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test18b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test18b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %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:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test18c: Addr-of a variable passed into an invoke instruction.
+; sspstrong attribute
+; Requires protector.
+define i32 @test18c() uwtable sspstrong {
+entry:
+; LINUX-I386: test18c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test18c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test18c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test18c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %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:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test18d: Addr-of a variable passed into an invoke instruction.
+; sspreq attribute
+; Requires protector.
+define i32 @test18d() uwtable sspreq {
+entry:
+; LINUX-I386: test18d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test18d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test18d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test18d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %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:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test19a: Addr-of a struct element passed into an invoke instruction.
+; (GEP followed by an invoke)
+; no ssp attribute
+; Requires no protector.
+define i32 @test19a() uwtable {
+entry:
+; LINUX-I386: test19a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test19a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test19a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test19a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %exn.slot = alloca i8*
+ %ehselector.slot = alloca i32
+ %a = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ store i32 0, i32* %a, align 4
+ %a1 = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ invoke void @_Z3exceptPi(i32* %a1)
+ to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+ ret i32 0
+
+lpad:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test19b: Addr-of a struct element passed into an invoke instruction.
+; (GEP followed by an invoke)
+; ssp attribute
+; Requires no protector.
+define i32 @test19b() uwtable ssp {
+entry:
+; LINUX-I386: test19b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test19b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test19b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test19b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.pair, align 4
+ %exn.slot = alloca i8*
+ %ehselector.slot = alloca i32
+ %a = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ store i32 0, i32* %a, align 4
+ %a1 = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ invoke void @_Z3exceptPi(i32* %a1)
+ to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+ ret i32 0
+
+lpad:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test19c: Addr-of a struct element passed into an invoke instruction.
+; (GEP followed by an invoke)
+; sspstrong attribute
+; Requires protector.
+define i32 @test19c() uwtable sspstrong {
+entry:
+; LINUX-I386: test19c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test19c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test19c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test19c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %exn.slot = alloca i8*
+ %ehselector.slot = alloca i32
+ %a = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ store i32 0, i32* %a, align 4
+ %a1 = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ invoke void @_Z3exceptPi(i32* %a1)
+ to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+ ret i32 0
+
+lpad:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test19d: Addr-of a struct element passed into an invoke instruction.
+; (GEP followed by an invoke)
+; sspreq attribute
+; Requires protector.
+define i32 @test19d() uwtable sspreq {
+entry:
+; LINUX-I386: test19d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test19d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test19d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test19d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %c = alloca %struct.pair, align 4
+ %exn.slot = alloca i8*
+ %ehselector.slot = alloca i32
+ %a = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ store i32 0, i32* %a, align 4
+ %a1 = getelementptr inbounds %struct.pair* %c, i32 0, i32 0
+ invoke void @_Z3exceptPi(i32* %a1)
+ to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+ ret i32 0
+
+lpad:
+ %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+ catch i8* null
+ ret i32 0
+}
+
+; test20a: Addr-of a pointer
+; no ssp attribute
+; Requires no protector.
+define void @test20a() nounwind uwtable {
+entry:
+; LINUX-I386: test20a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test20a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test20a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test20a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32*, align 8
+ %b = alloca i32**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ store i32** %a, i32*** %b, align 8
+ %0 = load i32*** %b, align 8
+ call void @funcall2(i32** %0)
+ ret void
+}
+
+; test20b: Addr-of a pointer
+; ssp attribute
+; Requires no protector.
+define void @test20b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test20b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test20b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test20b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test20b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32*, align 8
+ %b = alloca i32**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ store i32** %a, i32*** %b, align 8
+ %0 = load i32*** %b, align 8
+ call void @funcall2(i32** %0)
+ ret void
+}
+
+; test20c: Addr-of a pointer
+; sspstrong attribute
+; Requires protector.
+define void @test20c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test20c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test20c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test20c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test20c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32*, align 8
+ %b = alloca i32**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ store i32** %a, i32*** %b, align 8
+ %0 = load i32*** %b, align 8
+ call void @funcall2(i32** %0)
+ ret void
+}
+
+; test20d: Addr-of a pointer
+; sspreq attribute
+; Requires protector.
+define void @test20d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test20d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test20d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test20d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test20d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32*, align 8
+ %b = alloca i32**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ store i32** %a, i32*** %b, align 8
+ %0 = load i32*** %b, align 8
+ call void @funcall2(i32** %0)
+ ret void
+}
+
+; test21a: Addr-of a casted pointer
+; no ssp attribute
+; Requires no protector.
+define void @test21a() nounwind uwtable {
+entry:
+; LINUX-I386: test21a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test21a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test21a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test21a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32*, align 8
+ %b = alloca float**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ %0 = bitcast i32** %a to float**
+ store float** %0, float*** %b, align 8
+ %1 = load float*** %b, align 8
+ call void @funfloat2(float** %1)
+ ret void
+}
+
+; test21b: Addr-of a casted pointer
+; ssp attribute
+; Requires no protector.
+define void @test21b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test21b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test21b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test21b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test21b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca i32*, align 8
+ %b = alloca float**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ %0 = bitcast i32** %a to float**
+ store float** %0, float*** %b, align 8
+ %1 = load float*** %b, align 8
+ call void @funfloat2(float** %1)
+ ret void
+}
+
+; test21c: Addr-of a casted pointer
+; sspstrong attribute
+; Requires protector.
+define void @test21c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test21c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test21c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test21c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test21c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32*, align 8
+ %b = alloca float**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ %0 = bitcast i32** %a to float**
+ store float** %0, float*** %b, align 8
+ %1 = load float*** %b, align 8
+ call void @funfloat2(float** %1)
+ ret void
+}
+
+; test21d: Addr-of a casted pointer
+; sspreq attribute
+; Requires protector.
+define void @test21d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test21d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test21d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test21d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test21d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca i32*, align 8
+ %b = alloca float**, align 8
+ %call = call i32* @getp()
+ store i32* %call, i32** %a, align 8
+ %0 = bitcast i32** %a to float**
+ store float** %0, float*** %b, align 8
+ %1 = load float*** %b, align 8
+ call void @funfloat2(float** %1)
+ ret void
+}
+
+; test22a: [2 x i8] in a class
+; no ssp attribute
+; Requires no protector.
+define signext i8 @test22a() nounwind uwtable {
+entry:
+; LINUX-I386: test22a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test22a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test22a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test22a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca %class.A, align 1
+ %array = getelementptr inbounds %class.A* %a, i32 0, i32 0
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test22b: [2 x i8] in a class
+; ssp attribute
+; Requires no protector.
+define signext i8 @test22b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test22b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test22b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test22b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test22b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca %class.A, align 1
+ %array = getelementptr inbounds %class.A* %a, i32 0, i32 0
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test22c: [2 x i8] in a class
+; sspstrong attribute
+; Requires protector.
+define signext i8 @test22c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test22c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test22c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test22c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test22c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca %class.A, align 1
+ %array = getelementptr inbounds %class.A* %a, i32 0, i32 0
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test22d: [2 x i8] in a class
+; sspreq attribute
+; Requires protector.
+define signext i8 @test22d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test22d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test22d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test22d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test22d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca %class.A, align 1
+ %array = getelementptr inbounds %class.A* %a, i32 0, i32 0
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test23a: [2 x i8] nested in several layers of structs and unions
+; no ssp attribute
+; Requires no protector.
+define signext i8 @test23a() nounwind uwtable {
+entry:
+; LINUX-I386: test23a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test23a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test23a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test23a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %x = alloca %struct.deep, align 1
+ %b = getelementptr inbounds %struct.deep* %x, i32 0, i32 0
+ %c = bitcast %union.anon* %b to %struct.anon*
+ %d = getelementptr inbounds %struct.anon* %c, i32 0, i32 0
+ %e = getelementptr inbounds %struct.anon.0* %d, i32 0, i32 0
+ %array = bitcast %union.anon.1* %e to [2 x i8]*
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test23b: [2 x i8] nested in several layers of structs and unions
+; ssp attribute
+; Requires no protector.
+define signext i8 @test23b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test23b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test23b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test23b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test23b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %x = alloca %struct.deep, align 1
+ %b = getelementptr inbounds %struct.deep* %x, i32 0, i32 0
+ %c = bitcast %union.anon* %b to %struct.anon*
+ %d = getelementptr inbounds %struct.anon* %c, i32 0, i32 0
+ %e = getelementptr inbounds %struct.anon.0* %d, i32 0, i32 0
+ %array = bitcast %union.anon.1* %e to [2 x i8]*
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test23c: [2 x i8] nested in several layers of structs and unions
+; sspstrong attribute
+; Requires protector.
+define signext i8 @test23c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test23c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test23c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test23c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test23c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %x = alloca %struct.deep, align 1
+ %b = getelementptr inbounds %struct.deep* %x, i32 0, i32 0
+ %c = bitcast %union.anon* %b to %struct.anon*
+ %d = getelementptr inbounds %struct.anon* %c, i32 0, i32 0
+ %e = getelementptr inbounds %struct.anon.0* %d, i32 0, i32 0
+ %array = bitcast %union.anon.1* %e to [2 x i8]*
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test23d: [2 x i8] nested in several layers of structs and unions
+; sspreq attribute
+; Requires protector.
+define signext i8 @test23d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test23d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test23d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test23d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test23d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %x = alloca %struct.deep, align 1
+ %b = getelementptr inbounds %struct.deep* %x, i32 0, i32 0
+ %c = bitcast %union.anon* %b to %struct.anon*
+ %d = getelementptr inbounds %struct.anon* %c, i32 0, i32 0
+ %e = getelementptr inbounds %struct.anon.0* %d, i32 0, i32 0
+ %array = bitcast %union.anon.1* %e to [2 x i8]*
+ %arrayidx = getelementptr inbounds [2 x i8]* %array, i32 0, i64 0
+ %0 = load i8* %arrayidx, align 1
+ ret i8 %0
+}
+
+; test24a: Variable sized alloca
+; no ssp attribute
+; Requires no protector.
+define void @test24a(i32 %n) nounwind uwtable {
+entry:
+; LINUX-I386: test24a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test24a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test24a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test24a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %n.addr = alloca i32, align 4
+ %a = alloca i32*, align 8
+ store i32 %n, i32* %n.addr, align 4
+ %0 = load i32* %n.addr, align 4
+ %conv = sext i32 %0 to i64
+ %1 = alloca i8, i64 %conv
+ %2 = bitcast i8* %1 to i32*
+ store i32* %2, i32** %a, align 8
+ ret void
+}
+
+; test24b: Variable sized alloca
+; ssp attribute
+; Requires protector.
+define void @test24b(i32 %n) nounwind uwtable ssp {
+entry:
+; LINUX-I386: test24b:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test24b:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test24b:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test24b:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %n.addr = alloca i32, align 4
+ %a = alloca i32*, align 8
+ store i32 %n, i32* %n.addr, align 4
+ %0 = load i32* %n.addr, align 4
+ %conv = sext i32 %0 to i64
+ %1 = alloca i8, i64 %conv
+ %2 = bitcast i8* %1 to i32*
+ store i32* %2, i32** %a, align 8
+ ret void
+}
+
+; test24c: Variable sized alloca
+; sspstrong attribute
+; Requires protector.
+define void @test24c(i32 %n) nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test24c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test24c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test24c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test24c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %n.addr = alloca i32, align 4
+ %a = alloca i32*, align 8
+ store i32 %n, i32* %n.addr, align 4
+ %0 = load i32* %n.addr, align 4
+ %conv = sext i32 %0 to i64
+ %1 = alloca i8, i64 %conv
+ %2 = bitcast i8* %1 to i32*
+ store i32* %2, i32** %a, align 8
+ ret void
+}
+
+; test24d: Variable sized alloca
+; sspreq attribute
+; Requires protector.
+define void @test24d(i32 %n) nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test24d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test24d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test24d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test24d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %n.addr = alloca i32, align 4
+ %a = alloca i32*, align 8
+ store i32 %n, i32* %n.addr, align 4
+ %0 = load i32* %n.addr, align 4
+ %conv = sext i32 %0 to i64
+ %1 = alloca i8, i64 %conv
+ %2 = bitcast i8* %1 to i32*
+ store i32* %2, i32** %a, align 8
+ ret void
+}
+
+; test25a: array of [4 x i32]
+; no ssp attribute
+; Requires no protector.
+define i32 @test25a() nounwind uwtable {
+entry:
+; LINUX-I386: test25a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test25a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test25a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test25a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a = alloca [4 x i32], align 16
+ %arrayidx = getelementptr inbounds [4 x i32]* %a, i32 0, i64 0
+ %0 = load i32* %arrayidx, align 4
+ ret i32 %0
+}
+
+; test25b: array of [4 x i32]
+; ssp attribute
+; Requires no protector, except for Darwin which _does_ require a protector.
+define i32 @test25b() nounwind uwtable ssp {
+entry:
+; LINUX-I386: test25b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test25b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test25b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test25b:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca [4 x i32], align 16
+ %arrayidx = getelementptr inbounds [4 x i32]* %a, i32 0, i64 0
+ %0 = load i32* %arrayidx, align 4
+ ret i32 %0
+}
+
+; test25c: array of [4 x i32]
+; sspstrong attribute
+; Requires protector.
+define i32 @test25c() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test25c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test25c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test25c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test25c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca [4 x i32], align 16
+ %arrayidx = getelementptr inbounds [4 x i32]* %a, i32 0, i64 0
+ %0 = load i32* %arrayidx, align 4
+ ret i32 %0
+}
+
+; test25d: array of [4 x i32]
+; sspreq attribute
+; Requires protector.
+define i32 @test25d() nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test25d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test25d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test25d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test25d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a = alloca [4 x i32], align 16
+ %arrayidx = getelementptr inbounds [4 x i32]* %a, i32 0, i64 0
+ %0 = load i32* %arrayidx, align 4
+ ret i32 %0
+}
+
+; test26: Nested structure, no arrays, no address-of expressions.
+; Verify that the resulting gep-of-gep does not incorrectly trigger
+; a stack protector.
+; ssptrong attribute
+; Requires no protector.
+define void @test26() nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test26:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test26:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test26:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test26:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %c = alloca %struct.nest, align 4
+ %b = getelementptr inbounds %struct.nest* %c, i32 0, i32 1
+ %_a = getelementptr inbounds %struct.pair* %b, i32 0, i32 0
+ %0 = load i32* %_a, align 4
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32 %0)
+ ret void
+}
+
+; test27: Address-of a structure taken in a function with a loop where
+; the alloca is an incoming value to a PHI node and a use of that PHI
+; node is also an incoming value.
+; Verify that the address-of analysis does not get stuck in infinite
+; recursion when chasing the alloca through the PHI nodes.
+; Requires protector.
+define i32 @test27(i32 %arg) nounwind uwtable sspstrong {
+bb:
+; LINUX-I386: test27:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test27:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test27:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test27:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %tmp = alloca %struct.small*, align 8
+ %tmp1 = call i32 (...)* @dummy(%struct.small** %tmp) nounwind
+ %tmp2 = load %struct.small** %tmp, align 8
+ %tmp3 = ptrtoint %struct.small* %tmp2 to i64
+ %tmp4 = trunc i64 %tmp3 to i32
+ %tmp5 = icmp sgt i32 %tmp4, 0
+ br i1 %tmp5, label %bb6, label %bb21
+
+bb6: ; preds = %bb17, %bb
+ %tmp7 = phi %struct.small* [ %tmp19, %bb17 ], [ %tmp2, %bb ]
+ %tmp8 = phi i64 [ %tmp20, %bb17 ], [ 1, %bb ]
+ %tmp9 = phi i32 [ %tmp14, %bb17 ], [ %tmp1, %bb ]
+ %tmp10 = getelementptr inbounds %struct.small* %tmp7, i64 0, i32 0
+ %tmp11 = load i8* %tmp10, align 1
+ %tmp12 = icmp eq i8 %tmp11, 1
+ %tmp13 = add nsw i32 %tmp9, 8
+ %tmp14 = select i1 %tmp12, i32 %tmp13, i32 %tmp9
+ %tmp15 = trunc i64 %tmp8 to i32
+ %tmp16 = icmp eq i32 %tmp15, %tmp4
+ br i1 %tmp16, label %bb21, label %bb17
+
+bb17: ; preds = %bb6
+ %tmp18 = getelementptr inbounds %struct.small** %tmp, i64 %tmp8
+ %tmp19 = load %struct.small** %tmp18, align 8
+ %tmp20 = add i64 %tmp8, 1
+ br label %bb6
+
+bb21: ; preds = %bb6, %bb
+ %tmp22 = phi i32 [ %tmp1, %bb ], [ %tmp14, %bb6 ]
+ %tmp23 = call i32 (...)* @dummy(i32 %tmp22) nounwind
+ ret i32 undef
+}
+
+declare double @testi_aux()
declare i8* @strcpy(i8*, i8*)
declare i32 @printf(i8*, ...)
+declare void @funcall(i32*)
+declare void @funcall2(i32**)
+declare void @funfloat(float*)
+declare void @funfloat2(float**)
+declare void @_Z3exceptPi(i32*)
+declare i32 @__gxx_personality_v0(...)
+declare i32* @getp()
+declare i32 @dummy(...)
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