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use memcpy instead of dubious union to type pun two values,

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thanks to David Blaike for pointing this out.

llvm-svn: 175032
This commit is contained in:
Chris Lattner 2013-02-13 04:53:40 +00:00
parent 49b50f690c
commit 4eca27141d
1 changed files with 9 additions and 8 deletions
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17
include/llvm/Bitcode/BitstreamReader.h
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@ -364,16 +364,17 @@ public:
uint32_t R = uint32_t(CurWord);
// Read the next word from the stream.
union {
uint8_t ArrayMember[sizeof(word_t)];
support::detail::packed_endian_specific_integral
<word_t, support::little, support::unaligned> EndianMember;
} buf = { { 0 } };
uint8_t Array[sizeof(word_t)] = {0};
BitStream->getBitcodeBytes().readBytes(NextChar, sizeof(Array),
Array, NULL);
BitStream->getBitcodeBytes().readBytes(NextChar, sizeof(buf),
buf.ArrayMember, NULL);
// Handle big-endian byte-swapping if necessary.
CurWord = buf.EndianMember;
support::detail::packed_endian_specific_integral
<word_t, support::little, support::unaligned> EndianValue;
memcpy(&EndianValue, Array, sizeof(Array));
CurWord = EndianValue;
NextChar += sizeof(word_t);