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[Bug rtl-optimization/19001] [3.4 Regression] Loops with power of two step and variable bounds not unrolled
- From: "chris at bubblescope dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Dec 2004 10:59:42 -0000
- Subject: [Bug rtl-optimization/19001] [3.4 Regression] Loops with power of two step and variable bounds not unrolled
- References: <20041215002551.19001.rakdver@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From chris at bubblescope dot net 2004-12-19 10:59 -------
Sorry, I was testing for the existance of loop-unrolling by timing, rather than
looking at the code.
The compiler is unrolling the code I provided, but then optimised quite badly.
As this might not be the fault of the loop optimiser, but some other piece of
code, I have opened a new bug report for it: 19078
Sorry for the inconvience.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19001