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expr.c (emit_move_insn_1): Split push of complex value when no suitable push instruction exist.

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* expr.c (emit_move_insn_1):  Split push of complex value when
	no suitable push instruction exist.

	* i386.md (QImode move/add/shift patterns): Use ANY_QI_REG_P
	instead of QI_REG_P.

From-SVN: r40454
This commit is contained in:
Jan Hubicka 2001-03-14 16:38:55 +01:00 committed by Jan Hubicka
parent 2f2aa235bd
commit 1a06f5fe3f
4 changed files with 64 additions and 13 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
Wed Mar 14 16:36:25 CET 2001 Jan Hubicka <jh@suse.cz>
* expr.c (emit_move_insn_1): Split push of complex value when
no suitable push instruction exist.
* i386.md (QImode move/add/shift patterns): Use ANY_QI_REG_P
instead of QI_REG_P.
Tue Mar 13 22:22:04 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* alias.c (handled_component_p, can_address_p): New functions.

2
gcc/config/i386/i386.h
View File

@ -1138,7 +1138,7 @@ enum reg_class
((n) < 8 || REX_INT_REGNO_P (n))
#define GENERAL_REG_P(X) \
(REG_P (X) && GENERAL_REG_REGNO_P (X))
(REG_P (X) && GENERAL_REGNO_P (X))
#define ANY_QI_REG_P(X) (TARGET_64BIT ? GENERAL_REG_P(X) : QI_REG_P (X))

22
gcc/config/i386/i386.md
View File

@ -1911,7 +1911,7 @@
switch (get_attr_type (insn))
{
case TYPE_IMOVX:
if (!QI_REG_P (operands[1]) && GET_CODE (operands[1]) != MEM)
if (!ANY_QI_REG_P (operands[1]) && GET_CODE (operands[1]) != MEM)
abort ();
return \"movz{bl|x}\\t{%1, %k0|%k0, %1}\";
default:
@ -3077,7 +3077,7 @@
(clobber (reg:CC 17))]
"reload_completed
&& (!TARGET_ZERO_EXTEND_WITH_AND || optimize_size)
&& (!REG_P (operands[1]) || QI_REG_P (operands[1]))"
&& (!REG_P (operands[1]) || ANY_QI_REG_P (operands[1]))"
[(set (match_operand:HI 0 "register_operand" "")
(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))])
@ -3088,7 +3088,7 @@
(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))
(clobber (reg:CC 17))]
"reload_completed
&& QI_REG_P (operands[0])
&& ANY_QI_REG_P (operands[0])
&& (TARGET_ZERO_EXTEND_WITH_AND && !optimize_size)
&& !reg_overlap_mentioned_p (operands[0], operands[1])"
[(set (match_dup 0) (const_int 0))
@ -3147,7 +3147,7 @@
(clobber (reg:CC 17))]
"reload_completed
&& (!TARGET_ZERO_EXTEND_WITH_AND || optimize_size)
&& (!REG_P (operands[1]) || QI_REG_P (operands[1]))"
&& (!REG_P (operands[1]) || ANY_QI_REG_P (operands[1]))"
[(set (match_dup 0)
(zero_extend:SI (match_dup 1)))])
@ -3158,8 +3158,8 @@
(zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))
(clobber (reg:CC 17))]
"reload_completed
&& QI_REG_P (operands[0])
&& (QI_REG_P (operands[1]) || GET_CODE (operands[1]) == MEM)
&& ANY_QI_REG_P (operands[0])
&& (ANY_QI_REG_P (operands[1]) || GET_CODE (operands[1]) == MEM)
&& (TARGET_ZERO_EXTEND_WITH_AND && !optimize_size)
&& !reg_overlap_mentioned_p (operands[0], operands[1])"
[(set (match_dup 0) (const_int 0))
@ -8470,7 +8470,7 @@
case TYPE_ALU:
if (operands[2] != const1_rtx)
abort ();
if (NON_QI_REG_P (operands[1]))
if (REG_P (operands[1]) && !ANY_QI_REG_P (operands[1]))
return \"add{l}\\t{%k0, %k0|%k0, %k0}\";
else
return \"add{b}\\t{%0, %0|%0, %0}\";
@ -8527,7 +8527,7 @@
case TYPE_ALU:
if (operands[2] != const1_rtx)
abort ();
if (NON_QI_REG_P (operands[1]))
if (REG_P (operands[1]) && !ANY_QI_REG_P (operands[1]))
return \"add{l}\\t{%k0, %k0|%k0, %k0}\";
else
return \"add{b}\\t{%0, %0|%0, %0}\";
@ -8535,7 +8535,7 @@
default:
if (REG_P (operands[2]))
{
if (NON_QI_REG_P (operands[1]))
if (get_attr_mode (insn) == MODE_SI)
return \"sal{l}\\t{%b2, %k0|%k0, %b2}\";
else
return \"sal{b}\\t{%b2, %0|%0, %b2}\";
@ -8544,14 +8544,14 @@
&& INTVAL (operands[2]) == 1
&& (TARGET_PENTIUM || TARGET_PENTIUMPRO))
{
if (NON_QI_REG_P (operands[1]))
if (get_attr_mode (insn) == MODE_SI)
return \"sal{l}\\t%0\";
else
return \"sal{b}\\t%0\";
}
else
{
if (NON_QI_REG_P (operands[1]))
if (get_attr_mode (insn) == MODE_SI)
return \"sal{l}\\t{%2, %k0|%k0, %2}\";
else
return \"sal{b}\\t{%2, %0|%0, %2}\";

45
gcc/expr.c
View File

@ -2786,12 +2786,55 @@ emit_move_insn_1 (x, y)
/* Don't split destination if it is a stack push. */
int stack = push_operand (x, GET_MODE (x));
/* In case we output to the stack, but the size is smaller machine can
push exactly, we need to use move instructions. */
if (stack
&& PUSH_ROUNDING (GET_MODE_SIZE (submode)) != GET_MODE_SIZE (submode))
{
rtx temp;
int offset1, offset2;
/* Do not use anti_adjust_stack, since we don't want to update
stack_pointer_delta. */
temp = expand_binop (Pmode,
#ifdef STACK_GROWS_DOWNWARD
sub_optab,
#else
add_optab,
#endif
stack_pointer_rtx,
GEN_INT
(PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)))),
stack_pointer_rtx,
0,
OPTAB_LIB_WIDEN);
if (temp != stack_pointer_rtx)
emit_move_insn (stack_pointer_rtx, temp);
#ifdef STACK_GROWS_DOWNWARD
offset1 = 0;
offset2 = GET_MODE_SIZE (submode);
#else
offset1 = -PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)));
offset2 = (-PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)))
+ GET_MODE_SIZE (submode));
#endif
emit_move_insn (change_address (x, submode,
gen_rtx_PLUS (Pmode,
stack_pointer_rtx,
GEN_INT (offset1))),
gen_realpart (submode, y));
emit_move_insn (change_address (x, submode,
gen_rtx_PLUS (Pmode,
stack_pointer_rtx,
GEN_INT (offset2))),
gen_imagpart (submode, y));
}
/* If this is a stack, push the highpart first, so it
will be in the argument order.
In that case, change_address is used only to convert
the mode, not to change the address. */
if (stack)
else if (stack)
{
/* Note that the real part always precedes the imag part in memory
regardless of machine's endianness. */