Changes in directory llvm/lib/Support:
APInt.cpp updated: 1.71 -> 1.72
---
Log message:
Implement extension of sign bits for negative values in the uint64_t
constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll
---
Diffs of the changes: (+5 -1)
APInt.cpp | 6 +++++-
1 files changed, 5 insertions(+), 1 deletion(-)
Index: llvm/lib/Support/APInt.cpp
diff -u llvm/lib/Support/APInt.cpp:1.71 llvm/lib/Support/APInt.cpp:1.72
--- llvm/lib/Support/APInt.cpp:1.71 Mon Mar 12 13:37:25 2007
+++ llvm/lib/Support/APInt.cpp Mon Mar 19 15:37:47 2007
@@ -43,7 +43,8 @@
return result;
}
-APInt::APInt(uint32_t numBits, uint64_t val) : BitWidth(numBits), VAL(0) {
+APInt::APInt(uint32_t numBits, uint64_t val, bool isSigned )
+ : BitWidth(numBits), VAL(0) {
assert(BitWidth >= IntegerType::MIN_INT_BITS && "bitwidth too small");
assert(BitWidth <= IntegerType::MAX_INT_BITS && "bitwidth too large");
if (isSingleWord())
@@ -51,6 +52,9 @@
else {
pVal = getClearedMemory(getNumWords());
pVal[0] = val;
+ if (isSigned && int64_t(val) < 0)
+ for (unsigned i = 1; i < getNumWords(); ++i)
+ pVal[i] = -1ULL;
}
clearUnusedBits();
}
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