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Fix sext operation. Shifting by zero would leave an incorrect mask.
author
Reid Spencer
<rspencer@reidspencer.com>
Sun, 25 Feb 2007 23:54:00 +0000
(23:54 +0000)
committer
Reid Spencer
<rspencer@reidspencer.com>
Sun, 25 Feb 2007 23:54:00 +0000
(23:54 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34617
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Support/APInt.cpp
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diff --git
a/lib/Support/APInt.cpp
b/lib/Support/APInt.cpp
index
09a600f
..
e137786
100644
(file)
--- a/
lib/Support/APInt.cpp
+++ b/
lib/Support/APInt.cpp
@@
-889,7
+889,7
@@
void APInt::sext(uint32_t width) {
return;
}
- uint64_t mask = ~0ULL << wordBits;
+ uint64_t mask =
wordBits == 0 ? 0 :
~0ULL << wordBits;
uint64_t *newVal = getMemory(wordsAfter);
if (wordsBefore == 1)
newVal[0] = VAL | mask;