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re PR target/54093 (ICE in in extract_insn, at recog.c:2129)

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PR target/54093
	* config/rs6000/rs6000.c (rs6000_secondary_reload): Limit 32-bit
	multi-gpr reload to cases where predicate passes.  Do the same for
	64-bit multi-gpr reload.

From-SVN: r189921
This commit is contained in:
Alan Modra 2012-07-28 09:34:10 +09:30 • committed by Alan Modra
parent 5322d07e9c
commit 6ad58e822e
2 changed files with 20 additions and 3 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2012-07-28 Alan Modra <amodra@gmail.com>
PR target/54093
* config/rs6000/rs6000.c (rs6000_secondary_reload): Limit 32-bit
multi-gpr reload to cases where predicate passes. Do the same for
64-bit multi-gpr reload.
2012-07-27 Nathan Froyd <froydnj@gcc.gnu.org>
* expmed.h (alg_hash, alg_hash_used_p, sdiv_pow2_cheap,

16
gcc/config/rs6000/rs6000.c
View file

@ -13582,8 +13582,11 @@ rs6000_secondary_reload (bool in_p,
&& GET_MODE_SIZE (GET_MODE (x)) >= UNITS_PER_WORD)
{
rtx off = address_offset (XEXP (x, 0));
unsigned int extra = GET_MODE_SIZE (GET_MODE (x)) - UNITS_PER_WORD;
if (off != NULL_RTX && (INTVAL (off) & 3) != 0)
if (off != NULL_RTX
&& (INTVAL (off) & 3) != 0
&& (unsigned HOST_WIDE_INT) INTVAL (off) + 0x8000 < 0x10000 - extra)
{
if (in_p)
sri->icode = CODE_FOR_reload_di_load;
@ -13601,10 +13604,17 @@ rs6000_secondary_reload (bool in_p,
&& GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD)
{
rtx off = address_offset (XEXP (x, 0));
unsigned int extra = GET_MODE_SIZE (GET_MODE (x)) - UNITS_PER_WORD;
/* We need a secondary reload only when our legitimate_address_p
says the address is good (as otherwise the entire address
will be reloaded). So for mode sizes of 8 and 16 this will
be when the offset is in the ranges [0x7ffc,0x7fff] and
[0x7ff4,0x7ff7] respectively. Note that the address we see
here may have been manipulated by legitimize_reload_address. */
if (off != NULL_RTX
&& ((unsigned HOST_WIDE_INT) INTVAL (off) + 0x8000
>= 0x1000u - (GET_MODE_SIZE (GET_MODE (x)) - UNITS_PER_WORD)))
&& ((unsigned HOST_WIDE_INT) INTVAL (off) - (0x8000 - extra)
< UNITS_PER_WORD))
{
if (in_p)
sri->icode = CODE_FOR_reload_si_load;