Displaying 2 results from an estimated 2 matches for "1e760d13".
2013 Sep 27
0
[LLVMdev] Trip count and Loop Vectorizer
...___
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130927/1e760d13/attachment.html>
2013 Sep 27
2
[LLVMdev] Trip count and Loop Vectorizer
Hi,
I am trying to get a small loop to *not vectorize* for cases where it doesn't make sense. For instance, this loop:
void foo(int a[4][8], int n)
{
int b[4][8];
for(int i = 0; i < 4; i++) {
for(int j = 0; j < n; j++) {
a[i][j] = b[i][j];
}
}
}
* Has maximum of 8ints copy. LLVM tries to use Memcpy for the inner loop. It is not helpful to perform