Changes in directory llvm/lib/Target/PowerPC:
PPCISelLowering.cpp updated: 1.62 -> 1.63
PPCInstrInfo.td updated: 1.172 -> 1.173
---
Log message:
Add bswap, rotl, and rotr nodes
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl
Targets should add rotl/rotr patterns if they have them
---
Diffs of the changes: (+9 -3)
PPCISelLowering.cpp | 3 +++
PPCInstrInfo.td | 9 ++++++---
2 files changed, 9 insertions(+), 3 deletions(-)
Index: llvm/lib/Target/PowerPC/PPCISelLowering.cpp
diff -u llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.62
llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.63
--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.62 Wed Jan 11 13:55:07 2006
+++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp Wed Jan 11 15:21:00 2006
@@ -68,6 +68,9 @@
setOperationAction(ISD::CTPOP, MVT::i32 , Expand);
setOperationAction(ISD::CTTZ , MVT::i32 , Expand);
+ // PowerPC does not have ROTR
+ setOperationAction(ISD::ROTR, MVT::i32 , Expand);
+
// PowerPC does not have Select
setOperationAction(ISD::SELECT, MVT::i32, Expand);
setOperationAction(ISD::SELECT, MVT::f32, Expand);
Index: llvm/lib/Target/PowerPC/PPCInstrInfo.td
diff -u llvm/lib/Target/PowerPC/PPCInstrInfo.td:1.172
llvm/lib/Target/PowerPC/PPCInstrInfo.td:1.173
--- llvm/lib/Target/PowerPC/PPCInstrInfo.td:1.172 Mon Jan 9 18:15:59 2006
+++ llvm/lib/Target/PowerPC/PPCInstrInfo.td Wed Jan 11 15:21:00 2006
@@ -982,9 +982,6 @@
// XOR an arbitrary immediate.
def : Pat<(xor GPRC:$in, imm:$imm),
(XORIS (XORI GPRC:$in, (LO16 imm:$imm)), (HI16 imm:$imm))>;
-def : Pat<(or (shl GPRC:$rS, GPRC:$rB),
- (srl GPRC:$rS, (sub 32, GPRC:$rB))),
- (RLWNM GPRC:$rS, GPRC:$rB, 0, 31)>;
// Return void support.
def : Pat<(ret), (BLR)>;
@@ -1008,6 +1005,12 @@
def : Pat<(srl G8RC:$in, (i64 imm:$imm)),
(RLDICL G8RC:$in, (SRL64 imm:$imm), imm:$imm)>;
+// ROTL
+def : Pat<(rotl GPRC:$in, GPRC:$sh),
+ (RLWNM GPRC:$in, GPRC:$sh, 0, 31)>;
+def : Pat<(rotl GPRC:$in, (i32 imm:$imm)),
+ (RLWINM GPRC:$in, imm:$imm, 0, 31)>;
+
// Hi and Lo for Darwin Global Addresses.
def : Pat<(PPChi tglobaladdr:$in, 0), (LIS tglobaladdr:$in)>;
def : Pat<(PPClo tglobaladdr:$in, 0), (LI tglobaladdr:$in)>;
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