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| author | Sanjiv Gupta <sanjiv.gupta@microchip.com> | 2009-07-08 05:40:05 +0000 |
|---|---|---|
| committer | Sanjiv Gupta <sanjiv.gupta@microchip.com> | 2009-07-08 05:40:05 +0000 |
| commit | 12adb6a161ac3cda09d8056b00ba125338ec49fa (patch) | |
| tree | a358ac2d48fdc3f78c2bdfd8977719a8da132f46 /lib/Target/PIC16 | |
| parent | 8f5253baafe027bb8939498d9eb1083febc7339a (diff) | |
| download | external_llvm-12adb6a161ac3cda09d8056b00ba125338ec49fa.zip external_llvm-12adb6a161ac3cda09d8056b00ba125338ec49fa.tar.gz external_llvm-12adb6a161ac3cda09d8056b00ba125338ec49fa.tar.bz2 | |
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
Diffstat (limited to 'lib/Target/PIC16')
| -rw-r--r-- | lib/Target/PIC16/PIC16InstrInfo.td | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/PIC16/PIC16InstrInfo.td b/lib/Target/PIC16/PIC16InstrInfo.td index a054bdc..54f2b33 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, |