This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/51492] vectorizer does not support saturated arithmetic patterns
- From: "drepper.fsp at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 08 Jan 2012 18:56:48 +0000
- Subject: [Bug tree-optimization/51492] vectorizer does not support saturated arithmetic patterns
- Auto-submitted: auto-generated
- References: <bug-51492-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51492
--- Comment #2 from Ulrich Drepper <drepper.fsp at gmail dot com> 2012-01-08 18:56:48 UTC ---
Note, this code appears in gzip and therefore IIRC in specCPU (in
deflate.c:fill_window). Although when compiling gzip myself with that code
embedded in a larger function I cannot get the optimization to apply at all.
If this bug is fixed and the optimization is applied the spec numbers could go
up if specCPUis testing unzipping...