Removed SELECT_CC custom lowering. This is not needed anymore, the SELECT node

is lowered properly and covers everything LowerSELECT_CC did.
Added method printUnsignedImm in AsmPrinter to print uimm16 operands. This
avoid the ugly instruction by instruction checking in printOperand.
Added a swap instruction present in the allegrex core.
Added two conditional instructions present in the allegrex core : MOVZ and MOVN.
They both allow a more efficient SELECT operation for integers.
Also added SELECT patterns to optimize MOVZ and MOVN usage.
The brcond and setcc patterns were cleaned: redundant and suboptimal patterns
were
removed. The suboptimals were replaced by more efficient ones.
Fixed some instructions that were using immZExt16 instead of immSExt16.

llvm-svn: 54724

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/Mips/MipsISelLowering.h b/llvm/lib/Target/Mips/MipsISelLowering.h
index 3c8afb81a8b..9d8a756e76e 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.h
+++ b/llvm/lib/Target/Mips/MipsISelLowering.h
@@ -40,6 +40,9 @@ namespace llvm {
       // Handle gp_rel (small data/bss sections) relocation.
       GPRel,
 
+      // Conditional Move
+      CMov,
+
       // Select CC Pseudo Instruction
       SelectCC,
 
@@ -99,7 +102,6 @@ namespace llvm {
     SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG);
     SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG);
     SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
-    SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
     SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG);
     SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG);