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Enable streaming of bitcode

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This CL delays reading of function bodies from initial parse until
materialization, allowing overlap of compilation with bitcode download.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149918 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Derek Schuff
2012-02-06 22:30:29 +00:00
parent 06d7e1b52b
commit 2ea93875b2
26 changed files with 748 additions and 163 deletions
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6
tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
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@@ -483,13 +483,13 @@ static int AnalyzeBitcode() {
if (MemBuf->getBufferSize() & 3)
return Error("Bitcode stream should be a multiple of 4 bytes in length");
unsigned char *BufPtr = (unsigned char *)MemBuf->getBufferStart();
unsigned char *EndBufPtr = BufPtr+MemBuf->getBufferSize();
const unsigned char *BufPtr = (unsigned char *)MemBuf->getBufferStart();
const unsigned char *EndBufPtr = BufPtr+MemBuf->getBufferSize();
// If we have a wrapper header, parse it and ignore the non-bc file contents.
// The magic number is 0x0B17C0DE stored in little endian.
if (isBitcodeWrapper(BufPtr, EndBufPtr))
if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr))
if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr, true))
return Error("Invalid bitcode wrapper header");
BitstreamReader StreamFile(BufPtr, EndBufPtr);