4cb8cdab5e
LoopVectorize: Preserve NSW, NUW and IsExact flags.
...
llvm-svn: 167174
2012-10-31 21:40:39 +00:00
a721b21c64
LoopVectorizer: Add a basic cost model which uses the VTTI interface.
...
llvm-svn: 166620
2012-10-24 20:36:32 +00:00
d189b82a9b
Vectorize: teach cavVectorizeMemory to distinguish between A[i]+=x and A[B[i]]+=x.
...
If the pointer is consecutive then it is safe to read and write. If the pointer is non-loop-consecutive then
it is unsafe to vectorize it because we may hit an ordering issue.
llvm-svn: 166371
2012-10-20 08:26:33 +00:00
4f7f72702b
Vectorizer: Add support for loop reductions.
...
For example:
for (i=0; i<n; i++)
sum += A[i] + B[i] + i;
llvm-svn: 166351
2012-10-19 23:05:40 +00:00
ced93f3a05
vectorizer: Add support for reading and writing from the same memory location.
...
llvm-svn: 166255
2012-10-19 01:24:18 +00:00
Nadav Rotem