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revert r166264 because the LTO build is still failing

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166340 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2012-10-19 21:28:43 +00:00
parent e06ce4c2c4
commit a04a4a79ea
6 changed files with 92 additions and 101 deletions
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32
lib/Transforms/Utils/LowerInvoke.cpp
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@@ -45,10 +45,10 @@
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/TargetTransformInfo.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Target/TargetLowering.h"
#include <csetjmp>
#include <set>
using namespace llvm;
@@ -70,14 +70,15 @@ namespace {
Constant *SetJmpFn, *LongJmpFn, *StackSaveFn, *StackRestoreFn;
bool useExpensiveEHSupport;
// We peek in STTI to grab the target's jmp_buf size and alignment
const ScalarTargetTransformInfo *STTI;
// We peek in TLI to grab the target's jmp_buf size and alignment
const TargetLowering *TLI;
public:
static char ID; // Pass identification, replacement for typeid
explicit LowerInvoke(bool useExpensiveEHSupport = ExpensiveEHSupport)
explicit LowerInvoke(const TargetLowering *tli = NULL,
bool useExpensiveEHSupport = ExpensiveEHSupport)
: FunctionPass(ID), useExpensiveEHSupport(useExpensiveEHSupport),
STTI(0) {
TLI(tli) {
initializeLowerInvokePass(*PassRegistry::getPassRegistry());
}
bool doInitialization(Module &M);
@@ -107,24 +108,21 @@ INITIALIZE_PASS(LowerInvoke, "lowerinvoke",
char &llvm::LowerInvokePassID = LowerInvoke::ID;
// Public Interface To the LowerInvoke pass.
FunctionPass *llvm::createLowerInvokePass() {
return new LowerInvoke(ExpensiveEHSupport);
FunctionPass *llvm::createLowerInvokePass(const TargetLowering *TLI) {
return new LowerInvoke(TLI, ExpensiveEHSupport);
}
FunctionPass *llvm::createLowerInvokePass(bool useExpensiveEHSupport) {
return new LowerInvoke(useExpensiveEHSupport);
FunctionPass *llvm::createLowerInvokePass(const TargetLowering *TLI,
bool useExpensiveEHSupport) {
return new LowerInvoke(TLI, useExpensiveEHSupport);
}
// doInitialization - Make sure that there is a prototype for abort in the
// current module.
bool LowerInvoke::doInitialization(Module &M) {
TargetTransformInfo *TTI = getAnalysisIfAvailable<TargetTransformInfo>();
if (TTI)
STTI = TTI->getScalarTargetTransformInfo();
Type *VoidPtrTy = Type::getInt8PtrTy(M.getContext());
if (useExpensiveEHSupport) {
// Insert a type for the linked list of jump buffers.
unsigned JBSize = STTI ? STTI->getJumpBufSize() : 0;
unsigned JBSize = TLI ? TLI->getJumpBufSize() : 0;
JBSize = JBSize ? JBSize : 200;
Type *JmpBufTy = ArrayType::get(VoidPtrTy, JBSize);
@@ -432,7 +430,7 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
// Create an alloca for the incoming jump buffer ptr and the new jump buffer
// that needs to be restored on all exits from the function. This is an
// alloca because the value needs to be live across invokes.
unsigned Align = STTI ? STTI->getJumpBufAlignment() : 0;
unsigned Align = TLI ? TLI->getJumpBufAlignment() : 0;
AllocaInst *JmpBuf =
new AllocaInst(JBLinkTy, 0, Align,
"jblink", F.begin()->begin());
@@ -577,10 +575,6 @@ bool LowerInvoke::insertExpensiveEHSupport(Function &F) {
}
bool LowerInvoke::runOnFunction(Function &F) {
TargetTransformInfo *TTI = getAnalysisIfAvailable<TargetTransformInfo>();
if (TTI)
STTI = TTI->getScalarTargetTransformInfo();
if (useExpensiveEHSupport)
return insertExpensiveEHSupport(F);
else