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rs6000.c (rs6000_mode_dependent_address): Allow any offset from virtual_stack_vars_rtx and arg_pointer_rtx. 

gcc/
	* config/rs6000/rs6000.c (rs6000_mode_dependent_address): Allow any
	offset from virtual_stack_vars_rtx and arg_pointer_rtx.
	* config/rs6000/predicates.md (volatile_mem_operand): Use
	offsettable_nonstrict_memref_p.
	* config/rs6000/rs6000.md (*floatsidf2_internal): Remove split check.
	(*floatunssidf2_internal): Likewise.
	(*fix_truncdfsi2_internal): Likewise.
	(*fix_trunctfsi2_internal): Likewise.

From-SVN: r149765
This commit is contained in:
Richard Sandiford 2009-07-18 07:51:19 +00:00 committed by Richard Sandiford
parent f1bf410cad
commit 406d1650fb
4 changed files with 25 additions and 6 deletions
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11
gcc/ChangeLog
View File

@ -1,3 +1,14 @@
2009-07-18 Richard Sandiford <r.sandiford@uk.ibm.com>
* config/rs6000/rs6000.c (rs6000_mode_dependent_address): Allow any
offset from virtual_stack_vars_rtx and arg_pointer_rtx.
* config/rs6000/predicates.md (volatile_mem_operand): Use
offsettable_nonstrict_memref_p.
* config/rs6000/rs6000.md (*floatsidf2_internal): Remove split check.
(*floatunssidf2_internal): Likewise.
(*fix_truncdfsi2_internal): Likewise.
(*fix_trunctfsi2_internal): Likewise.
2009-07-17 Anatoly Sokolov <aesok@post.ru>
* config/avr/avr-devices.c (avr_mcu_t): Add atmega8u2, atmega16u2 and

2
gcc/config/rs6000/predicates.md
View File

@ -367,7 +367,7 @@
;; Return 1 if the operand is an offsettable memory operand.
(define_predicate "offsettable_mem_operand"
(and (match_operand 0 "memory_operand")
(match_test "GET_RTX_CLASS (GET_CODE (XEXP (op, 0))) != RTX_AUTOINC")))
(match_test "offsettable_nonstrict_memref_p (op)")))
;; Return 1 if the operand is a memory operand with an address divisible by 4
(define_predicate "word_offset_memref_operand"

10
gcc/config/rs6000/rs6000.c
View File

@ -5165,7 +5165,15 @@ rs6000_mode_dependent_address (rtx addr)
switch (GET_CODE (addr))
{
case PLUS:
if (GET_CODE (XEXP (addr, 1)) == CONST_INT)
/* Any offset from virtual_stack_vars_rtx and arg_pointer_rtx
is considered a legitimate address before reload, so there
are no offset restrictions in that case. Note that this
condition is safe in strict mode because any address involving
virtual_stack_vars_rtx or arg_pointer_rtx would already have
been rejected as illegitimate. */
if (XEXP (addr, 0) != virtual_stack_vars_rtx
&& XEXP (addr, 0) != arg_pointer_rtx
&& GET_CODE (XEXP (addr, 1)) == CONST_INT)
{
unsigned HOST_WIDE_INT val = INTVAL (XEXP (addr, 1));
return val + 12 + 0x8000 >= 0x10000;

8
gcc/config/rs6000/rs6000.md
View File

@ -6354,7 +6354,7 @@
(clobber (match_operand:SI 6 "gpc_reg_operand" "=&r"))]
"! TARGET_POWERPC64 && TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT"
"#"
"&& (can_create_pseudo_p () || offsettable_nonstrict_memref_p (operands[4]))"
""
[(pc)]
"
{
@ -6421,7 +6421,7 @@
(clobber (match_operand:DF 5 "gpc_reg_operand" "=&d"))]
"! TARGET_POWERPC64 && TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT"
"#"
"&& (can_create_pseudo_p () || offsettable_nonstrict_memref_p (operands[4]))"
""
[(pc)]
"
{
@ -6488,7 +6488,7 @@
"(TARGET_POWER2 || TARGET_POWERPC) && TARGET_HARD_FLOAT && TARGET_FPRS
&& TARGET_DOUBLE_FLOAT"
"#"
"&& (can_create_pseudo_p () || offsettable_nonstrict_memref_p (operands[3]))"
""
[(pc)]
"
{
@ -9396,7 +9396,7 @@
"!TARGET_IEEEQUAD
&& TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_LONG_DOUBLE_128"
"#"
"&& (can_create_pseudo_p () || offsettable_nonstrict_memref_p (operands[5]))"
""
[(pc)]
{
rtx lowword;