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[Bug target/9759] [arm] Combine cannot do its job due to arithmetic expression evaluation order
- From: "alga at rgai dot hu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Jun 2003 10:19:24 -0000
- Subject: [Bug target/9759] [arm] Combine cannot do its job due to arithmetic expression evaluation order
- References: <20030219170600.9759.lac@rgai.hu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9759
alga@rgai.hu changed:
What |Removed |Added
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CC| |alga@rgai.hu
------- Additional Comments From alga@rgai.hu 2003-06-03 10:19 -------
>Can you determine whether this is an improvement, or whether the original
>problem still exists?
The problem is still present on mainline (20030530), but no optimization can be
done for this example.
I attached another example which shows the problem clearly.
Anyway, We wrote down our idea about a possible solution.
See: http://gcc.gnu.org/ml/gcc-patches/2003-03/msg01886.html
Regards,
Gabor Loki
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