Author: djg
Date: Wed Feb 13 17:13:32 2008
New Revision: 47101
URL: http://llvm.org/viewvc/llvm-project?rev=47101&view=rev
Log:
Allow the APInt form of ComputeMaskedBits to operate on i128 types.
Modified:
llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp?rev=47101&r1=47100&r2=47101&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Wed Feb 13 17:13:32
2008
@@ -1134,14 +1134,13 @@
APInt &KnownZero, APInt &KnownOne,
unsigned Depth) const {
unsigned BitWidth = Mask.getBitWidth();
+ assert(BitWidth == MVT::getSizeInBits(Op.getValueType()) &&
+ "Mask size mismatches value type size!");
+
KnownZero = KnownOne = APInt(BitWidth, 0); // Don't know anything.
if (Depth == 6 || Mask == 0)
return; // Limit search depth.
- // The masks are not wide enough to represent this type! Should use APInt.
- if (Op.getValueType() == MVT::i128)
- return;
-
APInt KnownZero2, KnownOne2;
switch (Op.getOpcode()) {
@@ -1477,6 +1476,10 @@
void SelectionDAG::ComputeMaskedBits(SDOperand Op, uint64_t Mask,
uint64_t &KnownZero, uint64_t &KnownOne,
unsigned Depth) const {
+ // The masks are not wide enough to represent this type! Should use APInt.
+ if (Op.getValueType() == MVT::i128)
+ return;
+
unsigned NumBits = MVT::getSizeInBits(Op.getValueType());
APInt APIntMask(NumBits, Mask);
APInt APIntKnownZero(NumBits, 0);
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