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i386.c (ix86_gen_leave): New.

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2008-06-03  H.J. Lu  <hongjiu.lu@intel.com>

	*  config/i386/i386.c (ix86_gen_leave): New.
	(ix86_gen_pop1): Likewise.
	(ix86_gen_add3): Likewise.
	(ix86_gen_sub3): Likewise.
	(ix86_gen_sub3_carry): Likewise.
	(ix86_gen_one_cmpl2): Likewise.
	(ix86_gen_monitor): Likewise.
	(override_options): Initialize ix86_gen_leave, ix86_gen_pop1,
	ix86_gen_add3, ix86_gen_sub3, ix86_gen_sub3_carry,
	ix86_gen_one_cmpl2 and ix86_gen_monitor.
	(ix86_file_end): Use mov%z0 instead of mov{q}/mov{l}.
	(output_set_got): Use mov%z0, pop%z0 and add%z0 instead of
	mov{q}/mov{l}, pop{q}/pop{l} and add{q}/add{l}.
	(ix86_expand_epilogue): Updated.
	(print_operand): Handle integer register operand for 'z'.
	(ix86_expand_strlensi_unroll_1): Likewise.
	(ix86_expand_strlen): Likewise.
	(ix86_expand_builtin): Likewise.
	(x86_output_mi_thunk): Use mov%z1 and add%z1 instead of
	mov{q}/mov{l} and add{q}/add{l}.

From-SVN: r136321
This commit is contained in:
H.J. Lu 2008-06-03 13:25:18 +00:00 committed by H.J. Lu
parent 90b484920a
commit 999d31941e
2 changed files with 85 additions and 104 deletions
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23
gcc/ChangeLog
View File

@ -1,3 +1,26 @@
2008-06-03 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_gen_leave): New.
(ix86_gen_pop1): Likewise.
(ix86_gen_add3): Likewise.
(ix86_gen_sub3): Likewise.
(ix86_gen_sub3_carry): Likewise.
(ix86_gen_one_cmpl2): Likewise.
(ix86_gen_monitor): Likewise.
(override_options): Initialize ix86_gen_leave, ix86_gen_pop1,
ix86_gen_add3, ix86_gen_sub3, ix86_gen_sub3_carry,
ix86_gen_one_cmpl2 and ix86_gen_monitor.
(ix86_file_end): Use mov%z0 instead of mov{q}/mov{l}.
(output_set_got): Use mov%z0, pop%z0 and add%z0 instead of
mov{q}/mov{l}, pop{q}/pop{l} and add{q}/add{l}.
(ix86_expand_epilogue): Updated.
(print_operand): Handle integer register operand for 'z'.
(ix86_expand_strlensi_unroll_1): Likewise.
(ix86_expand_strlen): Likewise.
(ix86_expand_builtin): Likewise.
(x86_output_mi_thunk): Use mov%z1 and add%z1 instead of
mov{q}/mov{l} and add{q}/add{l}.
2008-06-03 Kai Tietz <kai.tietz@onevision.com>
* config/i386/i386.md (define_mode_iterator P): New.

166
gcc/config/i386/i386.c
View File

@ -1697,6 +1697,14 @@ static int ix86_regparm;
extern int ix86_force_align_arg_pointer;
static const char ix86_force_align_arg_pointer_string[] = "force_align_arg_pointer";
static rtx (*ix86_gen_leave) (void);
static rtx (*ix86_gen_pop1) (rtx);
static rtx (*ix86_gen_add3) (rtx, rtx, rtx);
static rtx (*ix86_gen_sub3) (rtx, rtx, rtx);
static rtx (*ix86_gen_sub3_carry) (rtx, rtx, rtx, rtx);
static rtx (*ix86_gen_one_cmpl2) (rtx, rtx);
static rtx (*ix86_gen_monitor) (rtx, rtx, rtx);
/* Preferred alignment for stack boundary in bits. */
unsigned int ix86_preferred_stack_boundary;
@ -2766,6 +2774,27 @@ override_options (void)
if (!TARGET_64BIT || DEFAULT_ABI == MS_ABI)
targetm.expand_builtin_va_start = NULL;
if (TARGET_64BIT)
{
ix86_gen_leave = gen_leave_rex64;
ix86_gen_pop1 = gen_popdi1;
ix86_gen_add3 = gen_adddi3;
ix86_gen_sub3 = gen_subdi3;
ix86_gen_sub3_carry = gen_subdi3_carry_rex64;
ix86_gen_one_cmpl2 = gen_one_cmpldi2;
ix86_gen_monitor = gen_sse3_monitor64;
}
else
{
ix86_gen_leave = gen_leave;
ix86_gen_pop1 = gen_popsi1;
ix86_gen_add3 = gen_addsi3;
ix86_gen_sub3 = gen_subsi3;
ix86_gen_sub3_carry = gen_subsi3_carry;
ix86_gen_one_cmpl2 = gen_one_cmplsi2;
ix86_gen_monitor = gen_sse3_monitor;
}
#ifdef USE_IX86_CLD
/* Use -mcld by default for 32-bit code if configured with --enable-cld. */
if (!TARGET_64BIT)
@ -6029,10 +6058,7 @@ ix86_file_end (void)
xops[0] = gen_rtx_REG (Pmode, regno);
xops[1] = gen_rtx_MEM (Pmode, stack_pointer_rtx);
if (TARGET_64BIT)
output_asm_insn ("mov{q}\t{%1, %0|%0, %1}", xops);
else
output_asm_insn ("mov{l}\t{%1, %0|%0, %1}", xops);
output_asm_insn ("mov%z0\t{%1, %0|%0, %1}", xops);
output_asm_insn ("ret", xops);
}
@ -6072,12 +6098,7 @@ output_set_got (rtx dest, rtx label ATTRIBUTE_UNUSED)
xops[2] = gen_rtx_LABEL_REF (Pmode, label ? label : gen_label_rtx ());
if (!flag_pic)
{
if (TARGET_64BIT)
output_asm_insn ("mov{q}\t{%2, %0|%0, %2}", xops);
else
output_asm_insn ("mov{l}\t{%2, %0|%0, %2}", xops);
}
output_asm_insn ("mov%z0\t{%2, %0|%0, %2}", xops);
else
output_asm_insn ("call\t%a2", xops);
@ -6092,12 +6113,7 @@ output_set_got (rtx dest, rtx label ATTRIBUTE_UNUSED)
CODE_LABEL_NUMBER (XEXP (xops[2], 0)));
if (flag_pic)
{
if (TARGET_64BIT)
output_asm_insn ("pop{q}\t%0", xops);
else
output_asm_insn ("pop{l}\t%0", xops);
}
output_asm_insn ("pop%z0\t%0", xops);
}
else
{
@ -6123,19 +6139,9 @@ output_set_got (rtx dest, rtx label ATTRIBUTE_UNUSED)
return "";
if (!flag_pic || TARGET_DEEP_BRANCH_PREDICTION)
{
if (TARGET_64BIT)
output_asm_insn ("add{q}\t{%1, %0|%0, %1}", xops);
else
output_asm_insn ("add{l}\t{%1, %0|%0, %1}", xops);
}
output_asm_insn ("add%z0\t{%1, %0|%0, %1}", xops);
else
{
if (TARGET_64BIT)
output_asm_insn ("add{q}\t{%1+[.-%a2], %0|%0, %1+(.-%a2)}", xops);
else
output_asm_insn ("add{l}\t{%1+[.-%a2], %0|%0, %1+(.-%a2)}", xops);
}
output_asm_insn ("add%z0\t{%1+[.-%a2], %0|%0, %1+(.-%a2)}", xops);
return "";
}
@ -6860,16 +6866,14 @@ ix86_expand_epilogue (int style)
/* If not an i386, mov & pop is faster than "leave". */
else if (TARGET_USE_LEAVE || optimize_size
|| !cfun->machine->use_fast_prologue_epilogue)
emit_insn (TARGET_64BIT ? gen_leave_rex64 () : gen_leave ());
emit_insn ((*ix86_gen_leave) ());
else
{
pro_epilogue_adjust_stack (stack_pointer_rtx,
hard_frame_pointer_rtx,
const0_rtx, style);
if (TARGET_64BIT)
emit_insn (gen_popdi1 (hard_frame_pointer_rtx));
else
emit_insn (gen_popsi1 (hard_frame_pointer_rtx));
emit_insn ((*ix86_gen_pop1) (hard_frame_pointer_rtx));
}
}
else
@ -6889,22 +6893,15 @@ ix86_expand_epilogue (int style)
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (ix86_save_reg (regno, false))
{
if (TARGET_64BIT)
emit_insn (gen_popdi1 (gen_rtx_REG (Pmode, regno)));
else
emit_insn (gen_popsi1 (gen_rtx_REG (Pmode, regno)));
}
emit_insn ((*ix86_gen_pop1) (gen_rtx_REG (Pmode, regno)));
if (frame_pointer_needed)
{
/* Leave results in shorter dependency chains on CPUs that are
able to grok it fast. */
if (TARGET_USE_LEAVE)
emit_insn (TARGET_64BIT ? gen_leave_rex64 () : gen_leave ());
else if (TARGET_64BIT)
emit_insn (gen_popdi1 (hard_frame_pointer_rtx));
emit_insn ((*ix86_gen_leave) ());
else
emit_insn (gen_popsi1 (hard_frame_pointer_rtx));
emit_insn ((*ix86_gen_pop1) (hard_frame_pointer_rtx));
}
}
@ -9170,12 +9167,17 @@ print_operand (FILE *file, rtx x, int code)
case 8:
if (GET_MODE_CLASS (GET_MODE (x)) == MODE_INT)
{
if (MEM_P (x))
{
#ifdef GAS_MNEMONICS
putc ('q', file);
putc ('q', file);
#else
putc ('l', file);
putc ('l', file);
putc ('l', file);
putc ('l', file);
#endif
}
else
putc ('q', file);
}
else
putc ('l', file);
@ -16258,10 +16260,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
QImode, 1, end_0_label);
/* Increment the address. */
if (TARGET_64BIT)
emit_insn (gen_adddi3 (out, out, const1_rtx));
else
emit_insn (gen_addsi3 (out, out, const1_rtx));
emit_insn ((*ix86_gen_add3) (out, out, const1_rtx));
/* Not needed with an alignment of 2 */
if (align != 2)
@ -16271,10 +16270,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, QImode, 1,
end_0_label);
if (TARGET_64BIT)
emit_insn (gen_adddi3 (out, out, const1_rtx));
else
emit_insn (gen_addsi3 (out, out, const1_rtx));
emit_insn ((*ix86_gen_add3) (out, out, const1_rtx));
emit_label (align_3_label);
}
@ -16282,10 +16278,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, QImode, 1,
end_0_label);
if (TARGET_64BIT)
emit_insn (gen_adddi3 (out, out, const1_rtx));
else
emit_insn (gen_addsi3 (out, out, const1_rtx));
emit_insn ((*ix86_gen_add3) (out, out, const1_rtx));
}
/* Generate loop to check 4 bytes at a time. It is not a good idea to
@ -16295,10 +16288,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
mem = change_address (src, SImode, out);
emit_move_insn (scratch, mem);
if (TARGET_64BIT)
emit_insn (gen_adddi3 (out, out, GEN_INT (4)));
else
emit_insn (gen_addsi3 (out, out, GEN_INT (4)));
emit_insn ((*ix86_gen_add3) (out, out, GEN_INT (4)));
/* This formula yields a nonzero result iff one of the bytes is zero.
This saves three branches inside loop and many cycles. */
@ -16354,10 +16344,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
/* Not in the first two. Move two bytes forward. */
emit_insn (gen_lshrsi3 (tmpreg, tmpreg, GEN_INT (16)));
if (TARGET_64BIT)
emit_insn (gen_adddi3 (out, out, const2_rtx));
else
emit_insn (gen_addsi3 (out, out, const2_rtx));
emit_insn ((*ix86_gen_add3) (out, out, const2_rtx));
emit_label (end_2_label);
@ -16367,10 +16354,7 @@ ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx)
tmpreg = gen_lowpart (QImode, tmpreg);
emit_insn (gen_addqi3_cc (tmpreg, tmpreg, tmpreg));
cmp = gen_rtx_LTU (Pmode, gen_rtx_REG (CCmode, FLAGS_REG), const0_rtx);
if (TARGET_64BIT)
emit_insn (gen_subdi3_carry_rex64 (out, out, GEN_INT (3), cmp));
else
emit_insn (gen_subsi3_carry (out, out, GEN_INT (3), cmp));
emit_insn ((*ix86_gen_sub3_carry) (out, out, GEN_INT (3), cmp));
emit_label (end_0_label);
}
@ -16412,10 +16396,7 @@ ix86_expand_strlen (rtx out, rtx src, rtx eoschar, rtx align)
/* strlensi_unroll_1 returns the address of the zero at the end of
the string, like memchr(), so compute the length by subtracting
the start address. */
if (TARGET_64BIT)
emit_insn (gen_subdi3 (out, out, addr));
else
emit_insn (gen_subsi3 (out, out, addr));
emit_insn ((*ix86_gen_sub3) (out, out, addr));
}
else
{
@ -16438,16 +16419,8 @@ ix86_expand_strlen (rtx out, rtx src, rtx eoschar, rtx align)
unspec = gen_rtx_UNSPEC (Pmode, gen_rtvec (4, src, eoschar, align,
scratch4), UNSPEC_SCAS);
emit_insn (gen_strlenqi_1 (scratch1, scratch3, unspec));
if (TARGET_64BIT)
{
emit_insn (gen_one_cmpldi2 (scratch2, scratch1));
emit_insn (gen_adddi3 (out, scratch2, constm1_rtx));
}
else
{
emit_insn (gen_one_cmplsi2 (scratch2, scratch1));
emit_insn (gen_addsi3 (out, scratch2, constm1_rtx));
}
emit_insn ((*ix86_gen_one_cmpl2) (scratch2, scratch1));
emit_insn ((*ix86_gen_add3) (out, scratch2, constm1_rtx));
}
return 1;
}
@ -21542,10 +21515,7 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
op1 = copy_to_mode_reg (SImode, op1);
if (!REG_P (op2))
op2 = copy_to_mode_reg (SImode, op2);
if (!TARGET_64BIT)
emit_insn (gen_sse3_monitor (op0, op1, op2));
else
emit_insn (gen_sse3_monitor64 (op0, op1, op2));
emit_insn ((*ix86_gen_monitor) (op0, op1, op2));
return 0;
case IX86_BUILTIN_MWAIT:
@ -23221,10 +23191,7 @@ x86_output_mi_thunk (FILE *file ATTRIBUTE_UNUSED,
/* Put the this parameter into %eax. */
xops[0] = this_param;
xops[1] = this_reg = gen_rtx_REG (Pmode, AX_REG);
if (TARGET_64BIT)
output_asm_insn ("mov{q}\t{%0, %1|%1, %0}", xops);
else
output_asm_insn ("mov{l}\t{%0, %1|%1, %0}", xops);
output_asm_insn ("mov%z1\t{%0, %1|%1, %0}", xops);
}
else
this_reg = NULL_RTX;
@ -23266,10 +23233,7 @@ x86_output_mi_thunk (FILE *file ATTRIBUTE_UNUSED,
xops[0] = gen_rtx_MEM (Pmode, this_reg);
xops[1] = tmp;
if (TARGET_64BIT)
output_asm_insn ("mov{q}\t{%0, %1|%1, %0}", xops);
else
output_asm_insn ("mov{l}\t{%0, %1|%1, %0}", xops);
output_asm_insn ("mov%z1\t{%0, %1|%1, %0}", xops);
/* Adjust the this parameter. */
xops[0] = gen_rtx_MEM (Pmode, plus_constant (tmp, vcall_offset));
@ -23282,10 +23246,7 @@ x86_output_mi_thunk (FILE *file ATTRIBUTE_UNUSED,
xops[0] = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, tmp, tmp2));
}
xops[1] = this_reg;
if (TARGET_64BIT)
output_asm_insn ("add{q}\t{%0, %1|%1, %0}", xops);
else
output_asm_insn ("add{l}\t{%0, %1|%1, %0}", xops);
output_asm_insn ("add%z1\t{%0, %1|%1, %0}", xops);
}
/* If necessary, drop THIS back to its stack slot. */
@ -23293,10 +23254,7 @@ x86_output_mi_thunk (FILE *file ATTRIBUTE_UNUSED,
{
xops[0] = this_reg;
xops[1] = this_param;
if (TARGET_64BIT)
output_asm_insn ("mov{q}\t{%0, %1|%1, %0}", xops);
else
output_asm_insn ("mov{l}\t{%0, %1|%1, %0}", xops);
output_asm_insn ("mov%z1\t{%0, %1|%1, %0}", xops);
}
xops[0] = XEXP (DECL_RTL (function), 0);