Changes in directory llvm/lib/Target/X86:
X86PeepholeOpt.cpp updated: 1.41 -> 1.42
---
Log message:
the X86 backend no longer needs to delete its own noop copies
---
Diffs of the changes: (+2 -10)
X86PeepholeOpt.cpp | 12 ++----------
1 files changed, 2 insertions(+), 10 deletions(-)
Index: llvm/lib/Target/X86/X86PeepholeOpt.cpp
diff -u llvm/lib/Target/X86/X86PeepholeOpt.cpp:1.41
llvm/lib/Target/X86/X86PeepholeOpt.cpp:1.42
--- llvm/lib/Target/X86/X86PeepholeOpt.cpp:1.41 Mon Dec 12 14:12:20 2005
+++ llvm/lib/Target/X86/X86PeepholeOpt.cpp Thu Feb 2 20:59:58 2006
@@ -7,7 +7,8 @@
//
//===----------------------------------------------------------------------===//
//
-// This file contains a peephole optimizer for the X86.
+// This file contains an immediate shrinker for the X86. FIXME: Remove when
+// the dag isel makes this obsolete!
//
//===----------------------------------------------------------------------===//
@@ -61,15 +62,6 @@
MachineInstr *Next = (NextI != MBB.end()) ? &*NextI : (MachineInstr*)0;
unsigned Size = 0;
switch (MI->getOpcode()) {
- case X86::MOV8rr:
- case X86::MOV16rr:
- case X86::MOV32rr: // Destroy X = X copies...
- if (MI->getOperand(0).getReg() == MI->getOperand(1).getReg()) {
- I = MBB.erase(I);
- return true;
- }
- return false;
-
// A large number of X86 instructions have forms which take an 8-bit
// immediate despite the fact that the operands are 16 or 32 bits. Because
// this can save three bytes of code size (and icache space), we want to
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