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-rw-r--r--lib/CodeGen/MachineFunction.cpp57
1 files changed, 40 insertions, 17 deletions
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 04321f329282..0703df09a60e 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -17,6 +17,7 @@
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Analysis/ConstantFolding.h"
+#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
@@ -54,23 +55,28 @@ MachineFunction::MachineFunction(const Function *F, const TargetMachine &TM,
GCModuleInfo* gmi)
: Fn(F), Target(TM), Ctx(mmi.getContext()), MMI(mmi), GMI(gmi) {
if (TM.getRegisterInfo())
- RegInfo = new (Allocator) MachineRegisterInfo(*TM.getRegisterInfo());
+ RegInfo = new (Allocator) MachineRegisterInfo(TM);
else
RegInfo = 0;
+
MFInfo = 0;
- FrameInfo = new (Allocator) MachineFrameInfo(*TM.getFrameLowering(),
- TM.Options.RealignStack);
+ FrameInfo =
+ new (Allocator) MachineFrameInfo(TM,!F->hasFnAttribute("no-realign-stack"));
+
if (Fn->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
Attribute::StackAlignment))
FrameInfo->ensureMaxAlignment(Fn->getAttributes().
getStackAlignment(AttributeSet::FunctionIndex));
- ConstantPool = new (Allocator) MachineConstantPool(TM.getDataLayout());
+
+ ConstantPool = new (Allocator) MachineConstantPool(TM);
Alignment = TM.getTargetLowering()->getMinFunctionAlignment();
+
// FIXME: Shouldn't use pref alignment if explicit alignment is set on Fn.
if (!Fn->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
Attribute::OptimizeForSize))
Alignment = std::max(Alignment,
TM.getTargetLowering()->getPrefFunctionAlignment());
+
FunctionNumber = FunctionNum;
JumpTableInfo = 0;
}
@@ -456,11 +462,15 @@ MCSymbol *MachineFunction::getPICBaseSymbol() const {
// MachineFrameInfo implementation
//===----------------------------------------------------------------------===//
+const TargetFrameLowering *MachineFrameInfo::getFrameLowering() const {
+ return TM.getFrameLowering();
+}
+
/// ensureMaxAlignment - Make sure the function is at least Align bytes
/// aligned.
void MachineFrameInfo::ensureMaxAlignment(unsigned Align) {
- if (!TFI.isStackRealignable() || !RealignOption)
- assert(Align <= TFI.getStackAlignment() &&
+ if (!getFrameLowering()->isStackRealignable() || !RealignOption)
+ assert(Align <= getFrameLowering()->getStackAlignment() &&
"For targets without stack realignment, Align is out of limit!");
if (MaxAlignment < Align) MaxAlignment = Align;
}
@@ -482,8 +492,10 @@ static inline unsigned clampStackAlignment(bool ShouldClamp, unsigned Align,
int MachineFrameInfo::CreateStackObject(uint64_t Size, unsigned Alignment,
bool isSS, bool MayNeedSP, const AllocaInst *Alloca) {
assert(Size != 0 && "Cannot allocate zero size stack objects!");
- Alignment = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption,
- Alignment, TFI.getStackAlignment());
+ Alignment =
+ clampStackAlignment(!getFrameLowering()->isStackRealignable() ||
+ !RealignOption,
+ Alignment, getFrameLowering()->getStackAlignment());
Objects.push_back(StackObject(Size, Alignment, 0, false, isSS, MayNeedSP,
Alloca));
int Index = (int)Objects.size() - NumFixedObjects - 1;
@@ -498,8 +510,10 @@ int MachineFrameInfo::CreateStackObject(uint64_t Size, unsigned Alignment,
///
int MachineFrameInfo::CreateSpillStackObject(uint64_t Size,
unsigned Alignment) {
- Alignment = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption,
- Alignment, TFI.getStackAlignment());
+ Alignment =
+ clampStackAlignment(!getFrameLowering()->isStackRealignable() ||
+ !RealignOption,
+ Alignment, getFrameLowering()->getStackAlignment());
CreateStackObject(Size, Alignment, true, false);
int Index = (int)Objects.size() - NumFixedObjects - 1;
ensureMaxAlignment(Alignment);
@@ -513,8 +527,10 @@ int MachineFrameInfo::CreateSpillStackObject(uint64_t Size,
///
int MachineFrameInfo::CreateVariableSizedObject(unsigned Alignment) {
HasVarSizedObjects = true;
- Alignment = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption,
- Alignment, TFI.getStackAlignment());
+ Alignment =
+ clampStackAlignment(!getFrameLowering()->isStackRealignable() ||
+ !RealignOption,
+ Alignment, getFrameLowering()->getStackAlignment());
Objects.push_back(StackObject(0, Alignment, 0, false, false, true, 0));
ensureMaxAlignment(Alignment);
return (int)Objects.size()-NumFixedObjects-1;
@@ -532,10 +548,12 @@ int MachineFrameInfo::CreateFixedObject(uint64_t Size, int64_t SPOffset,
// the incoming frame position. If the frame object is at offset 32 and
// the stack is guaranteed to be 16-byte aligned, then we know that the
// object is 16-byte aligned.
- unsigned StackAlign = TFI.getStackAlignment();
+ unsigned StackAlign = getFrameLowering()->getStackAlignment();
unsigned Align = MinAlign(SPOffset, StackAlign);
- Align = clampStackAlignment(!TFI.isStackRealignable() || !RealignOption,
- Align, TFI.getStackAlignment());
+ Align =
+ clampStackAlignment(!getFrameLowering()->isStackRealignable() ||
+ !RealignOption,
+ Align, getFrameLowering()->getStackAlignment());
Objects.insert(Objects.begin(), StackObject(Size, Align, SPOffset, Immutable,
/*isSS*/ false,
/*NeedSP*/ false,
@@ -769,6 +787,10 @@ void MachineJumpTableInfo::dump() const { print(dbgs()); }
void MachineConstantPoolValue::anchor() { }
+const DataLayout *MachineConstantPool::getDataLayout() const {
+ return TM.getDataLayout();
+}
+
Type *MachineConstantPoolEntry::getType() const {
if (isMachineConstantPoolEntry())
return Val.MachineCPVal->getType();
@@ -850,7 +872,8 @@ unsigned MachineConstantPool::getConstantPoolIndex(const Constant *C,
// FIXME, this could be made much more efficient for large constant pools.
for (unsigned i = 0, e = Constants.size(); i != e; ++i)
if (!Constants[i].isMachineConstantPoolEntry() &&
- CanShareConstantPoolEntry(Constants[i].Val.ConstVal, C, TD)) {
+ CanShareConstantPoolEntry(Constants[i].Val.ConstVal, C,
+ getDataLayout())) {
if ((unsigned)Constants[i].getAlignment() < Alignment)
Constants[i].Alignment = Alignment;
return i;
@@ -887,7 +910,7 @@ void MachineConstantPool::print(raw_ostream &OS) const {
if (Constants[i].isMachineConstantPoolEntry())
Constants[i].Val.MachineCPVal->print(OS);
else
- OS << *(const Value*)Constants[i].Val.ConstVal;
+ WriteAsOperand(OS, Constants[i].Val.ConstVal, /*PrintType=*/false);
OS << ", align=" << Constants[i].getAlignment();
OS << "\n";
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 07:02:45 +0000