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Bug 1246433 - BaldrMonkey: Avoid shifting a negative signed value, on a CLOSED TREE. r=me

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This commit is contained in:
Dan Gohman 2016-02-08 17:05:40 -08:00
parent 5540b0f3ea
commit 53d1a03526
1 changed files with 1 additions and 1 deletions
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2
js/src/asmjs/WasmBinary.h
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@ -578,7 +578,7 @@ class Decoder
u |= UInt(byte & 0x7F) << shift;
shift += 7;
} while (shift != numBitsInSevens);
if (!readU8(&byte) || (byte & (-1 << remainderBits)))
if (!readU8(&byte) || (byte & (unsigned(-1) << remainderBits)))
return false;
if (out)
*out = u | UInt(byte) << numBitsInSevens;