Fix PR3453 and probably a bunch of other potential
crashes or wrong code with codegen of large integers:
eliminate the legacy getIntegerVTBitMask and
getIntegerVTSignBit methods, which returned their
value as a uint64_t, so couldn't handle huge types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63494 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenDAGPatterns.cpp b/utils/TableGen/CodeGenDAGPatterns.cpp
index e70bdb6..f3bdb4f 100644
--- a/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -842,7 +842,7 @@
// If sign-extended doesn't fit, does it fit as unsigned?
unsigned ValueMask;
unsigned UnsignedVal;
- ValueMask = unsigned(MVT(VT).getIntegerVTBitMask());
+ ValueMask = unsigned(~uint32_t(0UL) >> (32-Size));
UnsignedVal = unsigned(II->getValue());
if ((ValueMask & UnsignedVal) != UnsignedVal) {