Refactor the disabling of Thumb-1 LDM/STM generation

Originally I switched the LD/ST optimizer off in TargetMachine as it was previously, but Eric has suggested he'd prefer that it be short-circuited in the pass itself.

No functionality change.

llvm-svn: 211037

1 files changed, 3 insertions, 7 deletions

diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
index d1e7b4fcf5f..a93824230d7 100644
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -203,8 +203,7 @@ bool ARMPassConfig::addInstSelector() {
 }
 
 bool ARMPassConfig::addPreRegAlloc() {
-  // FIXME: Temporarily disabling Thumb-1 pre-RA Load/Store optimization pass
-  if (getOptLevel() != CodeGenOpt::None && !getARMSubtarget().isThumb1Only())
+  if (getOptLevel() != CodeGenOpt::None)
     addPass(createARMLoadStoreOptimizationPass(true));
   if (getOptLevel() != CodeGenOpt::None && getARMSubtarget().isCortexA9())
     addPass(createMLxExpansionPass());
@@ -219,11 +218,8 @@ bool ARMPassConfig::addPreRegAlloc() {
 
 bool ARMPassConfig::addPreSched2() {
   if (getOptLevel() != CodeGenOpt::None) {
-    // FIXME: Temporarily disabling Thumb-1 post-RA Load/Store optimization pass
-    if (!getARMSubtarget().isThumb1Only()) {
-      addPass(createARMLoadStoreOptimizationPass());
-      printAndVerify("After ARM load / store optimizer");
-    }
+    addPass(createARMLoadStoreOptimizationPass());
+    printAndVerify("After ARM load / store optimizer");
 
     if (getARMSubtarget().hasNEON())
       addPass(createExecutionDependencyFixPass(&ARM::DPRRegClass));