ARM VFP support 'flds/fldd' aliases for 'vldr'

[oota-llvm.git] / lib / Target / TargetInstrInfo.cpp

diff --git a/lib/Target/TargetInstrInfo.cpp b/lib/Target/TargetInstrInfo.cpp
index d4986d89ddc38490413919db73702edf4fac04d0..2097a18cf725613a42206960e3d88f42cd2441d2 100644 (file)
--- a/lib/Target/TargetInstrInfo.cpp
+++ b/lib/Target/TargetInstrInfo.cpp
@@ -12,43 +12,39 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetInstrItineraries.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/CodeGen/SelectionDAGNodes.h"
 #include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCInstrItineraries.h"
 #include "llvm/Support/ErrorHandling.h"
+#include <cctype>
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//
-//  TargetOperandInfo
+//  TargetInstrInfo
 //===----------------------------------------------------------------------===//
 
-/// getRegClass - Get the register class for the operand, handling resolution
-/// of "symbolic" pointer register classes etc.  If this is not a register
-/// operand, this returns null.
-const TargetRegisterClass *
-TargetOperandInfo::getRegClass(const TargetRegisterInfo *TRI) const {
-  if (isLookupPtrRegClass())
+TargetInstrInfo::~TargetInstrInfo() {
+}
+
+const TargetRegisterClass*
+TargetInstrInfo::getRegClass(const MCInstrDesc &MCID, unsigned OpNum,
+                             const TargetRegisterInfo *TRI) const {
+  if (OpNum >= MCID.getNumOperands())
+    return 0;
+
+  short RegClass = MCID.OpInfo[OpNum].RegClass;
+  if (MCID.OpInfo[OpNum].isLookupPtrRegClass())
     return TRI->getPointerRegClass(RegClass);
+
   // Instructions like INSERT_SUBREG do not have fixed register classes.
   if (RegClass < 0)
     return 0;
+
   // Otherwise just look it up normally.
   return TRI->getRegClass(RegClass);
 }
 
-//===----------------------------------------------------------------------===//
-//  TargetInstrInfo
-//===----------------------------------------------------------------------===//
-
-TargetInstrInfo::TargetInstrInfo(const TargetInstrDesc* Desc,
-                                 unsigned numOpcodes)
-  : Descriptors(Desc), NumOpcodes(numOpcodes) {
-}
-
-TargetInstrInfo::~TargetInstrInfo() {
-}
-
 unsigned
 TargetInstrInfo::getNumMicroOps(const InstrItineraryData *ItinData,
                                 const MachineInstr *MI) const {
@@ -127,20 +123,19 @@ bool TargetInstrInfo::hasLowDefLatency(const InstrItineraryData *ItinData,
 
 /// insertNoop - Insert a noop into the instruction stream at the specified
 /// point.
-void TargetInstrInfo::insertNoop(MachineBasicBlock &MBB, 
+void TargetInstrInfo::insertNoop(MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MI) const {
   llvm_unreachable("Target didn't implement insertNoop!");
 }
 
 
 bool TargetInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
-  const TargetInstrDesc &TID = MI->getDesc();
-  if (!TID.isTerminator()) return false;
-  
+  if (!MI->isTerminator()) return false;
+
   // Conditional branch is a special case.
-  if (TID.isBranch() && !TID.isBarrier())
+  if (MI->isBranch() && !MI->isBarrier())
     return true;
-  if (!TID.isPredicable())
+  if (!MI->isPredicable())
     return true;
   return !isPredicated(MI);
 }
@@ -148,21 +143,22 @@ bool TargetInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const {
 
 /// Measure the specified inline asm to determine an approximation of its
 /// length.
-/// Comments (which run till the next SeparatorChar or newline) do not
+/// Comments (which run till the next SeparatorString or newline) do not
 /// count as an instruction.
 /// Any other non-whitespace text is considered an instruction, with
-/// multiple instructions separated by SeparatorChar or newlines.
+/// multiple instructions separated by SeparatorString or newlines.
 /// Variable-length instructions are not handled here; this function
 /// may be overloaded in the target code to do that.
 unsigned TargetInstrInfo::getInlineAsmLength(const char *Str,
                                              const MCAsmInfo &MAI) const {
-  
-  
+
+
   // Count the number of instructions in the asm.
   bool atInsnStart = true;
   unsigned Length = 0;
   for (; *Str; ++Str) {
-    if (*Str == '\n' || *Str == MAI.getSeparatorChar())
+    if (*Str == '\n' || strncmp(Str, MAI.getSeparatorString(),
+                                strlen(MAI.getSeparatorString())) == 0)
       atInsnStart = true;
     if (atInsnStart && !std::isspace(*Str)) {
       Length += MAI.getMaxInstLength();
@@ -172,6 +168,6 @@ unsigned TargetInstrInfo::getInlineAsmLength(const char *Str,
                                strlen(MAI.getCommentString())) == 0)
       atInsnStart = false;
   }
-  
+
   return Length;
 }