llvm-6502/lib/Transforms/Vectorize
Nadav Rotem 5290baacb8 PR14448 - prevent the loop vectorizer from vectorizing the same loop twice.
The LoopVectorizer often runs multiple times on the same function due to inlining.
When this happens the loop vectorizer often vectorizes the same loops multiple times, increasing code size and adding unneeded branches.
With this patch, the vectorizer during vectorization puts metadata on scalar loops and marks them as 'already vectorized' so that it knows to ignore them when it sees them a second time.

PR14448.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176399 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-02 01:33:49 +00:00
..
BBVectorize.cpp BBVectorize: Fix an invalid reference bug 2013-02-17 15:59:26 +00:00
CMakeLists.txt Add a loop vectorizer. 2012-10-17 18:25:06 +00:00
LLVMBuild.txt
LoopVectorize.cpp PR14448 - prevent the loop vectorizer from vectorizing the same loop twice. 2013-03-02 01:33:49 +00:00
Makefile
Vectorize.cpp LoopVectorizer: Use the "optsize" attribute to decide if we are allowed to increase the function size. 2012-12-12 19:29:45 +00:00