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[Bug 1001154] HAL_DISABLE_INTERRUPTS miscompile on Cortex-M3
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: unassigned at bugs dot ecos dot sourceware dot org
- Date: Wed, 16 Feb 2011 15:09:43 +0000
- Subject: [Bug 1001154] HAL_DISABLE_INTERRUPTS miscompile on Cortex-M3
- Auto-submitted: auto-generated
- References: <bug-1001154-777@http.bugs.ecos.sourceware.org/>
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John Dallaway <john@dallaway.org.uk> changed:
What |Removed |Added
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CC| |john@dallaway.org.uk
--- Comment #2 from John Dallaway <john@dallaway.org.uk> 2011-02-16 15:09:42 GMT ---
Stano, thank you for the bug report.
(In reply to comment #0)
> Either
> : "I" (CYGNUM_HAL_CORTEXM_PRIORITY_MAX)\
> or
> : "=&r" (__old) \
> fix the problem.
Marking the operand as an earlyclobber operand using "=&r" seems to be the most
elegant solution in that it documents the original issue.
Any other comments?
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