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[Bug gas/6957] i386 NOPs must be derived from march not mtune
From: |
swanson at ukfsn dot org |
Subject: |
[Bug gas/6957] i386 NOPs must be derived from march not mtune |
Date: |
12 Oct 2008 13:25:53 -0000 |
------- Additional Comments From swanson at ukfsn dot org 2008-10-12 13:25
-------
Sorry but how can PROCESSOR_UNKNOWN mean it can run any instructions? It's
unknown! Therefore we must use lowest common denominator to expect it to work on
all CPUs.
Tune means scheduling.
Arch means instructions.
Test case. Pass -march=i486 and -mtune=i686 and it'll use alt_long_patt which
won't work on i486. Fail.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6957
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- [Bug gas/6957] New: i386 NOPs must be derived from march not mtune, swanson at ukfsn dot org, 2008/10/11
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, swanson at ukfsn dot org, 2008/10/11
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/11
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, swanson at ukfsn dot org, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, swanson at ukfsn dot org, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune,
swanson at ukfsn dot org <=
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/12
- [Bug gas/6957] i386 NOPs must be derived from march not mtune, hjl dot tools at gmail dot com, 2008/10/12