Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects

that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index 9e917bd..758c6c1 100644
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -95,7 +95,7 @@ void RegScavenger::forward() {
 
   // Reaching a terminator instruction. Restore a scavenged register (which
   // must be life out.
-  if (TII->isTerminatorInstr(MI->getOpcode()))
+  if (MI->getDesc()->isTerminator())
     restoreScavengedReg();
 
   // Process uses first.
@@ -122,7 +122,7 @@ void RegScavenger::forward() {
   setUnused(ChangedRegs);
 
   // Process defs.
-  const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
+  const TargetInstrDescriptor *TID = MI->getDesc();
   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
     const MachineOperand &MO = MI->getOperand(i);
     if (!MO.isRegister() || !MO.isDef())
@@ -152,7 +152,7 @@ void RegScavenger::backward() {
 
   MachineInstr *MI = MBBI;
   // Process defs first.
-  const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
+  const TargetInstrDescriptor *TID = MI->getDesc();
   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
     const MachineOperand &MO = MI->getOperand(i);
     if (!MO.isRegister() || !MO.isDef())