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re PR rtl-optimization/13674 (ICE in reload_cse_simplify_operands, at postreload.c:378 on PPC64) 

PR target/13674
	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
	Convert non-word aligned offset address using ld/std into
	indirect address.

From-SVN: r93052
This commit is contained in:
David Edelsohn 2005-01-07 15:30:13 +00:00 committed by David Edelsohn
parent db39699900
commit 4937d02db2
2 changed files with 29 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2005-01-07 David Edelsohn <edelsohn@gnu.org>
PR target/13674
* config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
Convert non-word aligned offset address using ld/std into
indirect address.
2005-01-07 Richard Henderson <rth@redhat.com>
* config/i386/i386.md (sse_loadhps splitter): Fix operand number typo.

22
gcc/config/rs6000/rs6000.c
View File

@ -3809,6 +3809,26 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode,
return x;
}
#endif
/* Force ld/std non-word aligned offset into base register by wrapping
in offset 0. */
if (GET_CODE (x) == PLUS
&& GET_CODE (XEXP (x, 0)) == REG
&& REGNO (XEXP (x, 0)) < 32
&& REG_MODE_OK_FOR_BASE_P (XEXP (x, 0), mode)
&& GET_CODE (XEXP (x, 1)) == CONST_INT
&& (INTVAL (XEXP (x, 1)) & 3) != 0
&& GET_MODE_SIZE (mode) >= UNITS_PER_WORD
&& TARGET_POWERPC64)
{
x = gen_rtx_PLUS (GET_MODE (x), x, GEN_INT (0));
push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL,
BASE_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0,
opnum, (enum reload_type) type);
*win = 1;
return x;
}
if (GET_CODE (x) == PLUS
&& GET_CODE (XEXP (x, 0)) == REG
&& REGNO (XEXP (x, 0)) < FIRST_PSEUDO_REGISTER
@ -3844,6 +3864,7 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode,
*win = 1;
return x;
}
#if TARGET_MACHO
if (GET_CODE (x) == SYMBOL_REF
&& DEFAULT_ABI == ABI_DARWIN
@ -3874,6 +3895,7 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode,
return x;
}
#endif
if (TARGET_TOC
&& constant_pool_expr_p (x)
&& ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (get_pool_constant (x), mode))