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[Patch ARM] Fix PR target/58854


PR58854 is another manifestation of the usual issue with the scheduler not understanding sp fp overlap issues and hoisting such adjustments (see PR38644 for a long history on an earlier one) over accesses from the frame. The usual bodge in the backend is attached.

Tested arm-none-eabi cross - tested that the testcase works just fine.

Applied to trunk and will backport to the 4.8 branch in a day or so after the auto-testers have had a chance to play with this.

regards
Ramana

2013-10-30  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/58854
        * config/arm/arm.c (arm_expand_epilogue_apcs_frame): Emit blockage.

Attachment: 58854.txt
Description: Text document


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