[llvm-commits] CVS: llvm/lib/Target/X86/PeepholeOptimizer.cpp

[Alkis Evlogimenos]

Changes in directory llvm/lib/Target/X86:

PeepholeOptimizer.cpp updated: 1.24 -> 1.25

---
Log message:

Peephole optimize SUBmi{16,32} into SUBmi{16,32}b when immediate is 8
bits wide.


---
Diffs of the changes:  (+3 -0)

Index: llvm/lib/Target/X86/PeepholeOptimizer.cpp
diff -u llvm/lib/Target/X86/PeepholeOptimizer.cpp:1.24 llvm/lib/Target/X86/PeepholeOptimizer.cpp:1.25
--- llvm/lib/Target/X86/PeepholeOptimizer.cpp:1.24	Tue Feb 17 09:10:11 2004
+++ llvm/lib/Target/X86/PeepholeOptimizer.cpp	Tue Feb 17 09:14:29 2004
@@ -154,6 +154,7 @@
 
 
   case X86::ADDmi16:  case X86::ADDmi32:
+  case X86::SUBmi16:  case X86::SUBmi32:
   case X86::ANDmi16:  case X86::ANDmi32:
     assert(MI->getNumOperands() == 5 && "These should all have 5 operands!");
     if (MI->getOperand(4).isImmediate()) {
@@ -165,6 +166,8 @@
         default: assert(0 && "Unknown opcode value!");
         case X86::ADDmi16:  Opcode = X86::ADDmi16b; break;
         case X86::ADDmi32:  Opcode = X86::ADDmi32b; break;
+        case X86::SUBmi16:  Opcode = X86::SUBmi16b; break;
+        case X86::SUBmi32:  Opcode = X86::SUBmi32b; break;
         case X86::ANDmi16:  Opcode = X86::ANDmi16b; break;
         case X86::ANDmi32:  Opcode = X86::ANDmi32b; break;
         }