Make these predicates return true for bit_convert(buildvector)'s as well as
buildvectors.
llvm-svn: 27723
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index bcdbef1..75281d5 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -73,6 +73,10 @@
/// 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 @@
/// 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();