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Strength Reduction on x86
- To: gcc-bugs at gcc dot gnu dot org
- Subject: Strength Reduction on x86
- From: Mark Horsburgh <M dot K dot Horsburgh at damtp dot cam dot ac dot uk>
- Date: Thu, 9 Sep 1999 11:30:14 +0100 (BST)
- Reply-To: Mark Horsburgh <M dot K dot Horsburgh at damtp dot cam dot ac dot uk>
It appears that with the Cygnus ia32 backend being folded back into main
gcc sources the -fstrength-reduce bugs has reared it's ugly head again. I
would normally post the code that provoked it here, but it is in a large
amount of code machine generated by the Berkeley ICSI Sather compiler so
I'd rather not try to track down exactly where the bug is causing trouble.
Does anyone with a better memory than me remember a simple test case that
would provoke the old strength reduction bug? Or, better yet, does anyone
remember what was required to fix it?
Regards, Mark