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Make these predicates return true for bit_convert(buildvector)'s as well as

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buildvectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27723 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-04-15 23:38:00 +00:00
parent 60d3fa24ba
commit 547a16f273
1 changed files with 8 additions and 0 deletions
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8
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -73,6 +73,10 @@ bool ConstantFPSDNode::isExactlyValue(double V) const {
/// isBuildVectorAllOnes - Return true if the specified node is a
/// BUILD_VECTOR where all of the elements are ~0 or undef.
bool ISD::isBuildVectorAllOnes(const SDNode *N) {
// Look through a bit convert.
if (N->getOpcode() == ISD::BIT_CONVERT)
N = N->getOperand(0).Val;
if (N->getOpcode() != ISD::BUILD_VECTOR) return false;
unsigned i = 0, e = N->getNumOperands();
@ -117,6 +121,10 @@ bool ISD::isBuildVectorAllOnes(const SDNode *N) {
/// isBuildVectorAllZeros - Return true if the specified node is a
/// BUILD_VECTOR where all of the elements are 0 or undef.
bool ISD::isBuildVectorAllZeros(const SDNode *N) {
// Look through a bit convert.
if (N->getOpcode() == ISD::BIT_CONVERT)
N = N->getOperand(0).Val;
if (N->getOpcode() != ISD::BUILD_VECTOR) return false;
unsigned i = 0, e = N->getNumOperands();