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re PR target/35866 (Vector load/store from a packed struct does not work (without -mstrict-align))

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PR target/35866

	* config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Add clause for
	vector modes.

From-SVN: r138316
This commit is contained in:
Nathan Froyd 2008-07-30 15:30:59 +00:00 • committed by Nathan Froyd
parent efd417141c
commit 54ce9cc227
2 changed files with 11 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2008-07-30 Nathan Froyd <froydnj@codesourcery.com>
PR target/35866
* config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Add clause for
vector modes.
2008-07-30 Rafael Avila de Espindola <espindola@google.com>
* final.c (call_from_call_insn): New.

5
gcc/config/rs6000/rs6000.h
View file

@ -644,12 +644,15 @@ extern enum rs6000_nop_insertion rs6000_sched_insert_nops;
/* Define this macro to be the value 1 if unaligned accesses have a cost
many times greater than aligned accesses, for example if they are
emulated in a trap handler. */
/* Altivec vector memory instructions simply ignore the low bits; SPE
vector memory instructions trap on unaligned accesses. */
#define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) \
(STRICT_ALIGNMENT \
|| (((MODE) == SFmode || (MODE) == DFmode || (MODE) == TFmode \
|| (MODE) == SDmode || (MODE) == DDmode || (MODE) == TDmode \
|| (MODE) == DImode) \
&& (ALIGN) < 32))
&& (ALIGN) < 32) \
|| (VECTOR_MODE_P ((MODE)) && (ALIGN) < GET_MODE_BITSIZE ((MODE))))
/* Standard register usage. */