From: Sanjiv Gupta <sanjiv.gupta@microchip.com>
Date: Wed, 8 Jul 2009 05:40:05 +0000 (+0000)
Subject: Mark sublw_cc and subfw_cc as Terminator insns so that they are part of the terminato... 
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2d76f256f84cc2971c79f8714512a0bc88df9981;p=oota-llvm.git

Mark sublw_cc and subfw_cc as Terminator insns so that they are part of the terminator insns for a basic block alongwith branch insns. This way a copy is not getting inserted between cmp and branch during PHIElimination disturbing the status flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74992 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PIC16/PIC16InstrInfo.td b/lib/Target/PIC16/PIC16InstrInfo.td
index a054bdcbe3c..54f2b337e03 100644
--- a/lib/Target/PIC16/PIC16InstrInfo.td
+++ b/lib/Target/PIC16/PIC16InstrInfo.td
@@ -375,8 +375,9 @@ def subfw_2: SUBFW<0, "subwf", subc>;
 let Uses = [STATUS] in
 def subfwb: SUBFW<0, "subwfb", sube>;  // With Borrow.
 
-def subfw_cc: SUBFW<0, "subwf", PIC16Subcc>;
 }
+let Defs = [STATUS], isTerminator = 1 in
+def subfw_cc: SUBFW<0, "subwf", PIC16Subcc>;
 
 // [F] -= W ; 
 let mayStore = 1 in
@@ -425,8 +426,9 @@ class SUBLW<bits<6> opcode, SDNode OpNode> :
 let Defs = [STATUS] in {
 def sublw_1 : SUBLW<0, sub>;
 def sublw_2 : SUBLW<0, subc>;
-def sublw_cc : SUBLW<0, PIC16Subcc>;
 }
+let Defs = [STATUS], isTerminator = 1 in 
+def sublw_cc : SUBLW<0, PIC16Subcc>;
 
 // Call instruction.
 let isCall = 1,