emscripten-fastcomp - LLVM with the emscripten fastcomp javascript backend

Age	Commit message (Collapse)	Author
2013-05-28	PNaCl: Extend ExpandMulWithOverflow pass to handle uadd.with.overflow too	Mark Seaborn
	It turned out that umul.with.overflow wasn't the only .with.overflow intrinsic usage introduced by Clang. I knew that Clang's CGExprCXX.cpp generates umul.with.overflow for an overflow check for C++'s "new Foo[]". The same code for handling "new Foo[]" also generates uadd.with.overflow in some cases. This happens if class Foo has a destructor or a delete[] operator that takes a size argument. In those cases, the C++ ABI adds a "cookie" to the allocation which contains the array's size. Rename the pass to "ExpandArithWithOverflow" and rename files accordingly. Also enable the pass. BUG=https://code.google.com/p/nativeclient/issues/detail?id=3434 TEST=.ll tests + trybots + GCC torture tests Review URL: https://codereview.chromium.org/15688011
2013-05-24	PNaCl: Add pass to expand out Clang-generated umul.with.overflow calls	Mark Seaborn
	This adds a pass, ExpandMulWithOverflow, to expand out the llvm.umul.with.overflow calls that Clang generates to implement an overflow check for C++'s new[] operator. BUG=https://code.google.com/p/nativeclient/issues/detail?id=3434 TEST=expand-mul-with-overflow.ll Review URL: https://codereview.chromium.org/14649027