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| author | Chris Lattner <sabre@nondot.org> | 2006-04-17 06:07:44 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-04-17 06:07:44 +0000 |
| commit | f8dd76df5bbeaa506df76c0aa612d84c0e36c10e (patch) | |
| tree | 679bdc6344772e771ebc8b06a731da1985e98fa2 | |
| parent | 02440a996b522a5683ff6171da357fafc70ecdbe (diff) | |
| download | bcm5719-llvm-f8dd76df5bbeaa506df76c0aa612d84c0e36c10e.tar.gz bcm5719-llvm-f8dd76df5bbeaa506df76c0aa612d84c0e36c10e.zip | |
Learn how to make odd splatted constants in range [17,29]. This implements
PowerPC/vec_constants.ll:test_29.
llvm-svn: 27752
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index be30d7663b3..53365b17243 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -1105,6 +1105,13 @@ static SDOperand LowerBUILD_VECTOR(SDOperand Op, SelectionDAG &DAG) { 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 |
