[llvm-commits] CVS: llvm/lib/Target/X86/X86InstrInfo.td

[Chris Lattner]

Changes in directory llvm/lib/Target/X86:

X86InstrInfo.td updated: 1.80 -> 1.81

---
Log message:

Mark barrier instructions.  Execution does not fall through uncond branches
or return intructions.



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Diffs of the changes:  (+4 -2)

Index: llvm/lib/Target/X86/X86InstrInfo.td
diff -u llvm/lib/Target/X86/X86InstrInfo.td:1.80 llvm/lib/Target/X86/X86InstrInfo.td:1.81
--- llvm/lib/Target/X86/X86InstrInfo.td:1.80	Thu Jun 10 23:50:14 2004
+++ llvm/lib/Target/X86/X86InstrInfo.td	Fri Jul 30 21:10:53 2004
@@ -169,19 +169,21 @@
 let isTerminator = 1 in
   let Defs = [FP0, FP1, FP2, FP3, FP4, FP5, FP6] in
     def FP_REG_KILL    : I<"FP_REG_KILL",      0, Pseudo>;
+
 //===----------------------------------------------------------------------===//
 //  Control Flow Instructions...
 //
 
 // Return instruction...
-let isTerminator = 1, isReturn = 1 in
+let isTerminator = 1, isReturn = 1, isBarrier = 1 in
   def RET : I<"ret", 0xC3, RawFrm>, Pattern<(retvoid)>;
 
 // All branches are RawFrm, Void, Branch, and Terminators
 let isBranch = 1, isTerminator = 1 in
   class IBr<string name, bits<8> opcode> : I<name, opcode, RawFrm>;
 
-def JMP : IBr<"jmp", 0xE9>, Pattern<(br basicblock)>;
+let isBarrier = 1 in
+  def JMP : IBr<"jmp", 0xE9>, Pattern<(br basicblock)>;
 def JB  : IBr<"jb" , 0x82>, TB;
 def JAE : IBr<"jae", 0x83>, TB;
 def JE  : IBr<"je" , 0x84>, TB, Pattern<(isVoid (unspec1 basicblock))>;