[llvm-commits] [llvm] r164926 - /llvm/trunk/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp

[Craig Topper]

Author: ctopper
Date: Mon Oct  1 02:33:27 2012
New Revision: 164926

URL: http://llvm.org/viewvc/llvm-project?rev=164926&view=rev
Log:
Use constants for all return values in switch. Allows clang to optimize it into a lookup table.

Modified:
    llvm/trunk/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp

Modified: llvm/trunk/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp?rev=164926&r1=164925&r2=164926&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp (original)
+++ llvm/trunk/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp Mon Oct  1 02:33:27 2012
@@ -243,9 +243,14 @@
   case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B:
     return N86::EDI;
 
-  case X86::ST0: case X86::ST1: case X86::ST2: case X86::ST3:
-  case X86::ST4: case X86::ST5: case X86::ST6: case X86::ST7:
-    return RegNo-X86::ST0;
+  case X86::ST0: return 0;
+  case X86::ST1: return 1;
+  case X86::ST2: return 2;
+  case X86::ST3: return 3;
+  case X86::ST4: return 4;
+  case X86::ST5: return 5;
+  case X86::ST6: return 6;
+  case X86::ST7: return 7;
 
   case X86::XMM0: case X86::XMM8:
   case X86::YMM0: case X86::YMM8: case X86::MM0: