Tyler Nowicki 5eaa5a9d26 Improve vectorization diagnostic messages and extend vectorize(enable) pragma. ...

This patch changes the analysis diagnostics produced when loops with
floating-point recurrences or memory operations are identified. The new messages 
say "cannot prove it is safe to reorder * operations; allow reordering by
specifying #pragma clang loop vectorize(enable)". Depending on the type of 
diagnostic the message will include additional options such as ffast-math or
__restrict__.

This patch also allows the vectorize(enable) pragma to override the low pointer
memory check threshold. When the hint is given a higher threshold is used.

See the clang patch for the options produced for each diagnostic.

llvm-svn: 246187

2015-08-27 18:56:49 +00:00

..

BBVectorize.cpp

Rename Instruction::dropUnknownMetadata() to dropUnknownNonDebugMetadata()

2015-08-20 22:00:30 +00:00

CMakeLists.txt

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LLVMBuild.txt

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LoopVectorize.cpp

Improve vectorization diagnostic messages and extend vectorize(enable) pragma.

2015-08-27 18:56:49 +00:00

Makefile

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SLPVectorizer.cpp

[SLP] Propagate 'nontemporal' attribute into vectorized instructions.

2015-08-20 22:28:15 +00:00

Vectorize.cpp

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