Changes in directory llvm/lib/Target/PowerPC:
PPCISelLowering.cpp updated: 1.156 -> 1.157
---
Log message:
Learn how to make odd splatted constants in range [17,29]. This implements
PowerPC/vec_constants.ll:test_29.
---
Diffs of the changes: (+7 -0)
PPCISelLowering.cpp | 7 +++++++
1 files changed, 7 insertions(+)
Index: llvm/lib/Target/PowerPC/PPCISelLowering.cpp
diff -u llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.156
llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.157
--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp:1.156 Mon Apr 17 01:00:21 2006
+++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp Mon Apr 17 01:07:44 2006
@@ -1105,6 +1105,13 @@
Op = BuildSplatI(SextVal >> 1, SplatSize, Op.getValueType(), DAG);
return DAG.getNode(ISD::ADD, Op.getValueType(), Op, Op);
}
+ // Otherwise, in range [17,29]: (vsplti 15) + (vsplti C).
+ if (SextVal >= 0 && SextVal <= 29) {
+ SDOperand LHS = BuildSplatI(15, SplatSize, Op.getValueType(), DAG);
+ SDOperand RHS = BuildSplatI(SextVal-15, SplatSize,
Op.getValueType(),DAG);
+ return DAG.getNode(ISD::ADD, Op.getValueType(), LHS, RHS);
+
+ }
// If this is 0x8000_0000 x 4, turn into vspltisw + vslw. If it is
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