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aarch64.c (aarch_macro_fusion_pair_p): Push the check for CC usage into AARCH64_FUSE_CMP_BRANCH.

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2017-06-29  Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

	* config/aarch64/aarch64.c (aarch_macro_fusion_pair_p): Push the
	check for CC usage into AARCH64_FUSE_CMP_BRANCH.
	* config/i386/i386.c (ix86_macro_fusion_pair_p): Push the check for
	CC usage from generic code to here.
	* sched-deps.c (sched_macro_fuse_insns): Move the condition for
	CC usage into the target macros.

From-SVN: r249827
This commit is contained in:
Naveen H.S 2017-06-30 03:50:44 +00:00 committed by Naveen H.S
parent 44b222cee6
commit 509f819a8e
4 changed files with 50 additions and 26 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2017-06-29 Naveen H.S <Naveen.Hurugalawadi@cavium.com>
* config/aarch64/aarch64.c (aarch_macro_fusion_pair_p): Push the
check for CC usage into AARCH64_FUSE_CMP_BRANCH.
* config/i386/i386.c (ix86_macro_fusion_pair_p): Push the check for
CC usage from generic code to here.
* sched-deps.c (sched_macro_fuse_insns): Move the condition for
CC usage into the target macros.
2017-06-29 Maya Rashish <coypu@sdf.org>
* config/netbsd.h (NETBSD_LIB_SPEC): Add -lc when creating shared

24
gcc/config/aarch64/aarch64.c
View File

@ -14304,13 +14304,23 @@ aarch_macro_fusion_pair_p (rtx_insn *prev, rtx_insn *curr)
{
enum attr_type prev_type = get_attr_type (prev);
/* FIXME: this misses some which is considered simple arthematic
instructions for ThunderX. Simple shifts are missed here. */
if (prev_type == TYPE_ALUS_SREG
|| prev_type == TYPE_ALUS_IMM
|| prev_type == TYPE_LOGICS_REG
|| prev_type == TYPE_LOGICS_IMM)
return true;
unsigned int condreg1, condreg2;
rtx cc_reg_1;
aarch64_fixed_condition_code_regs (&condreg1, &condreg2);
cc_reg_1 = gen_rtx_REG (CCmode, condreg1);
if (reg_referenced_p (cc_reg_1, PATTERN (curr))
&& prev
&& modified_in_p (cc_reg_1, prev))
{
/* FIXME: this misses some which is considered simple arthematic
instructions for ThunderX. Simple shifts are missed here. */
if (prev_type == TYPE_ALUS_SREG
|| prev_type == TYPE_ALUS_IMM
|| prev_type == TYPE_LOGICS_REG
|| prev_type == TYPE_LOGICS_IMM)
return true;
}
}
return false;

9
gcc/config/i386/i386.c
View File

@ -30345,6 +30345,15 @@ ix86_macro_fusion_pair_p (rtx_insn *condgen, rtx_insn *condjmp)
if (!any_condjump_p (condjmp))
return false;
unsigned int condreg1, condreg2;
rtx cc_reg_1;
ix86_fixed_condition_code_regs (&condreg1, &condreg2);
cc_reg_1 = gen_rtx_REG (CCmode, condreg1);
if (!reg_referenced_p (cc_reg_1, PATTERN (condjmp))
|| !condgen
|| !modified_in_p (cc_reg_1, condgen))
return false;
if (get_attr_type (condgen) != TYPE_TEST
&& get_attr_type (condgen) != TYPE_ICMP
&& get_attr_type (condgen) != TYPE_INCDEC

34
gcc/sched-deps.c
View File

@ -2834,34 +2834,30 @@ static void
sched_macro_fuse_insns (rtx_insn *insn)
{
rtx_insn *prev;
prev = prev_nonnote_nondebug_insn (insn);
if (!prev)
return;
if (any_condjump_p (insn))
{
unsigned int condreg1, condreg2;
rtx cc_reg_1;
targetm.fixed_condition_code_regs (&condreg1, &condreg2);
cc_reg_1 = gen_rtx_REG (CCmode, condreg1);
prev = prev_nonnote_nondebug_insn (insn);
if (!reg_referenced_p (cc_reg_1, PATTERN (insn))
|| !prev
|| !modified_in_p (cc_reg_1, prev))
return;
if (reg_referenced_p (cc_reg_1, PATTERN (insn))
&& modified_in_p (cc_reg_1, prev))
{
if (targetm.sched.macro_fusion_pair_p (prev, insn))
SCHED_GROUP_P (insn) = 1;
return;
}
}
else
if (single_set (insn) && single_set (prev))
{
rtx insn_set = single_set (insn);
prev = prev_nonnote_nondebug_insn (insn);
if (!prev
|| !insn_set
|| !single_set (prev))
return;
if (targetm.sched.macro_fusion_pair_p (prev, insn))
SCHED_GROUP_P (insn) = 1;
}
if (targetm.sched.macro_fusion_pair_p (prev, insn))
SCHED_GROUP_P (insn) = 1;
}
/* Get the implicit reg pending clobbers for INSN and save them in TEMP. */