[llvm-commits] [llvm] r144734 - /llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Tue Nov 15 17:53:18 2011
New Revision: 144734

URL: http://llvm.org/viewvc/llvm-project?rev=144734&view=rev
Log:
Enable -widen-vmovs by default.

This will widen 32-bit register vmov instructions to 64-bit when
possible.  The 64-bit vmovd instructions can then be translated to NEON
vorr instructions by the execution dependency fix pass.

The copies are only widened if they are marked as clobbering the whole
D-register.

Modified:
    llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp?rev=144734&r1=144733&r2=144734&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMBaseInstrInfo.cpp Tue Nov 15 17:53:18 2011
@@ -46,7 +46,7 @@
                cl::desc("Enable ARM 2-addr to 3-addr conv"));
 
 static cl::opt<bool>
-WidenVMOVS("widen-vmovs", cl::Hidden,
+WidenVMOVS("widen-vmovs", cl::Hidden, cl::init(true),
            cl::desc("Widen ARM vmovs to vmovd when possible"));
 
 /// ARM_MLxEntry - Record information about MLA / MLS instructions.