Changes in directory llvm/lib/Target:
TargetSelectionDAG.td updated: 1.68 -> 1.69
---
Log message:
Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an
extra operand to LOADX to specify the exact value extension type.
---
Diffs of the changes: (+10 -12)
TargetSelectionDAG.td | 22 ++++++++++------------
1 files changed, 10 insertions(+), 12 deletions(-)
Index: llvm/lib/Target/TargetSelectionDAG.td
diff -u llvm/lib/Target/TargetSelectionDAG.td:1.68
llvm/lib/Target/TargetSelectionDAG.td:1.69
--- llvm/lib/Target/TargetSelectionDAG.td:1.68 Thu Jun 15 03:19:05 2006
+++ llvm/lib/Target/TargetSelectionDAG.td Tue Oct 3 19:53:53 2006
@@ -164,10 +164,10 @@
SDTCisPtrTy<1>
]>;
-def SDTExtLoad : SDTypeProfile<1, 3, [ // extload
- SDTCisPtrTy<1>, SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT>
+def SDTLoadX : SDTypeProfile<1, 4, [ // loadX
+ SDTCisPtrTy<1>, SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT>, SDTCisVT<4, i32>
]>;
-def SDTIntExtLoad : SDTypeProfile<1, 3, [ // sextload, zextload
+def SDTIntExtLoad : SDTypeProfile<1, 3, [ // extload, sextload, zextload
SDTCisInt<0>, SDTCisPtrTy<1>, SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT>
]>;
def SDTTruncStore : SDTypeProfile<0, 4, [ // truncstore
@@ -308,11 +308,9 @@
def load : SDNode<"ISD::LOAD" , SDTLoad, [SDNPHasChain]>;
def store : SDNode<"ISD::STORE" , SDTStore, [SDNPHasChain]>;
-// Do not use sextld and zextld directly. Use sextload and zextload (see
-// below) which pass in a dummy srcvalue node which tblgen will skip over.
-def sextld : SDNode<"ISD::SEXTLOAD" , SDTIntExtLoad, [SDNPHasChain]>;
-def zextld : SDNode<"ISD::ZEXTLOAD" , SDTIntExtLoad, [SDNPHasChain]>;
-def extld : SDNode<"ISD::EXTLOAD" , SDTExtLoad, [SDNPHasChain]>;
+// Do not use loadx directly. Use extload, sextload and zextload (see below)
+// which pass in a dummy srcvalue node which tblgen will skip over.
+def loadx : SDNode<"ISD::LOADX" , SDTLoadX, [SDNPHasChain]>;
def truncst : SDNode<"ISD::TRUNCSTORE" , SDTTruncStore, [SDNPHasChain]>;
def vector_shuffle : SDNode<"ISD::VECTOR_SHUFFLE", SDTVecShuffle, []>;
@@ -415,12 +413,12 @@
def ineg : PatFrag<(ops node:$in), (sub 0, node:$in)>;
// extending load & truncstore fragments.
+def extload : PatFrag<(ops node:$ptr, node:$vt),
+ (loadx node:$ptr, srcvalue:$dummy, node:$vt, 0)>;
def sextload : PatFrag<(ops node:$ptr, node:$vt),
- (sextld node:$ptr, srcvalue:$dummy, node:$vt)>;
+ (loadx node:$ptr, srcvalue:$dummy, node:$vt, 1)>;
def zextload : PatFrag<(ops node:$ptr, node:$vt),
- (zextld node:$ptr, srcvalue:$dummy, node:$vt)>;
-def extload : PatFrag<(ops node:$ptr, node:$vt),
- (extld node:$ptr, srcvalue:$dummy, node:$vt)>;
+ (loadx node:$ptr, srcvalue:$dummy, node:$vt, 2)>;
def truncstore : PatFrag<(ops node:$val, node:$ptr, node:$vt),
(truncst node:$val, node:$ptr, srcvalue:$dummy,
node:$vt)>;
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