[llvm-commits] [llvm] r74992 - /llvm/trunk/lib/Target/PIC16/PIC16InstrInfo.td

[Sanjiv Gupta]

Author: sgupta
Date: Wed Jul  8 00:40:05 2009
New Revision: 74992

URL: http://llvm.org/viewvc/llvm-project?rev=74992&view=rev
Log:
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.

Modified:
    llvm/trunk/lib/Target/PIC16/PIC16InstrInfo.td

Modified: llvm/trunk/lib/Target/PIC16/PIC16InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PIC16/PIC16InstrInfo.td?rev=74992&r1=74991&r2=74992&view=diff

==============================================================================
--- llvm/trunk/lib/Target/PIC16/PIC16InstrInfo.td (original)
+++ llvm/trunk/lib/Target/PIC16/PIC16InstrInfo.td Wed Jul  8 00:40:05 2009
@@ -375,8 +375,9 @@
 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 @@
 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,