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re PR target/49780 ([x32] internal compiler error: in create_mem_ref, at tree-ssa-address.c:806)

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PR target/49780
	* config/i386/predicates.md (no_seg_addres_operand): No more special.
	* config/i386/i386.c (ix86_decompose_address): Allow only subregs
	of DImode hard registers in base.
	(ix86_legitimate_address_p): Allow SImode and DImode base and index
	registers.

From-SVN: r176506
This commit is contained in:
Uros Bizjak 2011-07-20 14:58:28 +02:00
parent 74d8fa4446
commit 5e27a6d4ff
3 changed files with 24 additions and 10 deletions
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16
gcc/ChangeLog
View File

@ -1,7 +1,15 @@
2011-07-20 Uros Bizjak <ubizjak@gmail.com>
PR target/49780
* config/i386/predicates.md (no_seg_addres_operand): No more special.
* config/i386/i386.c (ix86_decompose_address): Allow only subregs
of DImode hard registers in base.
(ix86_legitimate_address_p): Allow SImode and DImode base and index
registers.
2011-07-20 Richard Guenther <rguenther@suse.de>
* tree-ssa-structalias.c (new_var_info): Allocate oldsolution
lazily.
* tree-ssa-structalias.c (new_var_info): Allocate oldsolution lazily.
(unify_nodes): Deal with that.
(solve_graph): Likewise.
@ -91,8 +99,8 @@
(GNU_USER_LINK_EMULATION32, GNU_USER_LINK_EMULATION64)
(GNU_USER_LINK_EMULATIONN32): New macros.
* config.gcc (mips64*-*-linux* | mipsisa64*-*-linux* |
mips-*-linux*): Use the new headers.
* config.gcc (mips64*-*-linux* | mipsisa64*-*-linux* | mips-*-linux*):
Use the new headers.
2011-07-19 Richard Sandiford <rdsandiford@googlemail.com>

16
gcc/config/i386/i386.c
View File

@ -11085,8 +11085,16 @@ ix86_decompose_address (rtx addr, struct ix86_address *out)
int retval = 1;
enum ix86_address_seg seg = SEG_DEFAULT;
if (REG_P (addr) || GET_CODE (addr) == SUBREG)
if (REG_P (addr))
base = addr;
else if (GET_CODE (addr) == SUBREG)
{
/* Allow only subregs of DImode hard regs. */
if (register_no_elim_operand (SUBREG_REG (addr), DImode))
base = addr;
else
return 0;
}
else if (GET_CODE (addr) == PLUS)
{
rtx addends[4], op;
@ -11643,8 +11651,7 @@ ix86_legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED,
/* Base is not a register. */
return false;
if (GET_MODE (base) != Pmode)
/* Base is not in Pmode. */
if (GET_MODE (base) != SImode && GET_MODE (base) != DImode)
return false;
if ((strict && ! REG_OK_FOR_BASE_STRICT_P (reg))
@ -11672,8 +11679,7 @@ ix86_legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED,
/* Index is not a register. */
return false;
if (GET_MODE (index) != Pmode)
/* Index is not in Pmode. */
if (GET_MODE (index) != SImode && GET_MODE (index) != DImode)
return false;
if ((strict && ! REG_OK_FOR_INDEX_STRICT_P (reg))

2
gcc/config/i386/predicates.md
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@ -796,7 +796,7 @@
;; Return true if op if a valid address, and does not contain
;; a segment override.
(define_special_predicate "no_seg_address_operand"
(define_predicate "no_seg_address_operand"
(match_operand 0 "address_operand")
{
struct ix86_address parts;