switch the use-vml[as] instructions flag to a subtarget 'feature'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99565 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 11 deletions

diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index 8df59e4789..76ed66fe7d 100644
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -26,10 +26,6 @@ static cl::opt<bool>
 UseNEONFP("arm-use-neon-fp",
           cl::desc("Use NEON for single-precision FP"),
           cl::init(false), cl::Hidden);
-static cl::opt<bool>
-UseVMLxInstructions("arm-use-vmlx",
-                    cl::desc("Use VFP vmla and vmls instructions"),
-                    cl::init(true), cl::Hidden);
 
 static cl::opt<bool>
 UseMOVT("arm-use-movt",
@@ -40,7 +36,7 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
   : ARMArchVersion(V4)
   , ARMFPUType(None)
   , UseNEONForSinglePrecisionFP(UseNEONFP)
-  , UseVMLx(UseVMLxInstructions)
+  , SlowVMLx(false)
   , IsThumb(isT)
   , ThumbMode(Thumb1)
   , PostRAScheduler(false)
@@ -127,12 +123,6 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
     // operations with NEON instructions.
     if (UseNEONFP.getPosition() == 0)
       UseNEONForSinglePrecisionFP = true;
-    // The VFP vlma and vlms instructions don't play nicely with others;
-    // disable them.
-    // FIXME: This may be true for other variants as well. Get benchmark
-    // numbers and add them if determined that's the case.
-    if (UseVMLxInstructions.getPosition() == 0)
-      UseVMLx = false;
   }
 }