Add bundle aware API for querying instruction properties and switch the code

generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.

For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.

llvm-svn: 146026

1 files changed, 1 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/ARMFastISel.cpp b/llvm/lib/Target/ARM/ARMFastISel.cpp
index de366f7bc8f..d3ebf36b28e 100644
--- a/llvm/lib/Target/ARM/ARMFastISel.cpp
+++ b/llvm/lib/Target/ARM/ARMFastISel.cpp
@@ -228,8 +228,7 @@ class ARMFastISel : public FastISel {
 // we don't care about implicit defs here, just places we'll need to add a
 // default CCReg argument. Sets CPSR if we're setting CPSR instead of CCR.
 bool ARMFastISel::DefinesOptionalPredicate(MachineInstr *MI, bool *CPSR) {
-  const MCInstrDesc &MCID = MI->getDesc();
-  if (!MCID.hasOptionalDef())
+  if (!MI->hasOptionalDef())
     return false;
 
   // Look to see if our OptionalDef is defining CPSR or CCR.