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[Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> n
From: |
amodra at gmail dot com |
Subject: |
[Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt) |
Date: |
Thu, 14 May 2015 00:56:04 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=18414
Alan Modra <amodra at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |WONTFIX
--- Comment #1 from Alan Modra <amodra at gmail dot com> ---
True, ld will do this. However, the optimization is relying on gcc to generate
code that can be optimized this way.. So I'm assuming the example code was
from llvm or assembly.
gcc ensures that the optimization is valid by adding a dependency on r2 to the
low part of the address calculation.
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- [Bug ld/18414] New: TOC optimization, hfinkel at anl dot gov, 2015/05/13
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), hfinkel at anl dot gov, 2015/05/13
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt),
amodra at gmail dot com <=
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), hfinkel at anl dot gov, 2015/05/13
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), hfinkel at anl dot gov, 2015/05/13
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), amodra at gmail dot com, 2015/05/13
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), hfinkel at anl dot gov, 2015/05/14
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), bergner at vnet dot ibm.com, 2015/05/18
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), hfinkel at anl dot gov, 2015/05/18
- [Bug ld/18414] TOC optimization bug (ignoring data deps on addis/ld -> nop/ld opt), jsweval at arxan dot com, 2015/05/18