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compute this value correctly

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36575 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-04-29 19:49:58 +00:00
parent 8593e41855
commit a2d0ad4fe2
1 changed files with 4 additions and 2 deletions
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6
include/llvm/Bitcode/BitstreamReader.h
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@@ -48,9 +48,11 @@ class BitstreamReader {
/// BlockScope - This tracks the codesize of parent blocks. /// BlockScope - This tracks the codesize of parent blocks.
SmallVector<Block, 8> BlockScope; SmallVector<Block, 8> BlockScope;
/// FirstChar - This remembers the first byte of the stream.
const unsigned char *FirstChar;
public: public:
BitstreamReader(const unsigned char *Start, const unsigned char *End) BitstreamReader(const unsigned char *Start, const unsigned char *End)
: NextChar(Start), LastChar(End) { : NextChar(Start), LastChar(End), FirstChar(Start) {
assert(((End-Start) & 3) == 0 &&"Bitcode stream not a multiple of 4 bytes"); assert(((End-Start) & 3) == 0 &&"Bitcode stream not a multiple of 4 bytes");
CurWord = 0; CurWord = 0;
BitsInCurWord = 0; BitsInCurWord = 0;
@@ -74,7 +76,7 @@ public:
/// GetCurrentBitNo - Return the bit # of the bit we are reading. /// GetCurrentBitNo - Return the bit # of the bit we are reading.
uint64_t GetCurrentBitNo() const { uint64_t GetCurrentBitNo() const {
return CurWord * 32ULL + (32-CurCodeSize); return (NextChar-FirstChar)*8 + (32-BitsInCurWord);
} }