Changes in directory llvm/lib/CodeGen/SelectionDAG:
SelectionDAGISel.cpp updated: 1.321 -> 1.322
---
Log message:
add a hook to allow targets to hack on inline asms to lower them to llvm
when they want to.
---
Diffs of the changes: (+13 -1)
SelectionDAGISel.cpp | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletion(-)
Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.321
llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.322
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.321 Mon Nov 27
17:36:08 2006
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Tue Nov 28 19:12:32 2006
@@ -33,6 +33,7 @@
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
@@ -3780,7 +3781,17 @@
for (BasicBlock::iterator BBI = BB->begin(), E = BB->end(); BBI != E; ) {
Instruction *I = BBI++;
- if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(I)) {
+
+ if (CallInst *CI = dyn_cast<CallInst>(I)) {
+ // If we found an inline asm expession, and if the target knows how to
+ // lower it to normal LLVM code, do so now.
+ if (isa<InlineAsm>(CI->getCalledValue()))
+ if (const TargetAsmInfo *TAI =
+ TLI.getTargetMachine().getTargetAsmInfo()) {
+ if (TAI->ExpandInlineAsm(CI))
+ BBI = BB->begin();
+ }
+ } else if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(I)) {
MadeChange |= OptimizeGEPExpression(GEPI, TLI.getTargetData());
} else if (CastInst *CI = dyn_cast<CastInst>(I)) {
// If the source of the cast is a constant, then this should have
@@ -4004,6 +4015,7 @@
unsigned Reg;
Value *PHIOp = PN->getIncomingValueForBlock(LLVMBB);
+
if (Constant *C = dyn_cast<Constant>(PHIOp)) {
unsigned &RegOut = ConstantsOut[C];
if (RegOut == 0) {
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