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[ARC] Enable code density frame option for elf targets.

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xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.opt (mcode-density-frame): Get the inital value
	from TARGET_CODE_DENSITY_FRAME_DEFAULT.
	* config/arc/elf.h (TARGET_CODE_DENSITY_FRAME_DEFAULT): Define.
	* config/arc/linux.h (TARGET_CODE_DENSITY_FRAME_DEFAULT): Define.
	* config/arc/arc.md (pop_multi_fp_blink): Adjust constraints to
	match what the ops is doing.
	(push_multi_fp_blink): Likewise.
	* config/arc/arc.c (arc_override_options): Enable enter/leave when
	compiling for size and elf target.
	(arc_save_callee_enter): Adjust note to match what enter/leave
	operation does.

From-SVN: r269758
This commit is contained in:
Claudiu Zissulescu 2019-03-18 10:28:45 +01:00 committed by Claudiu Zissulescu
parent a094796050
commit f5d56cf957
6 changed files with 39 additions and 12 deletions
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14
gcc/ChangeLog
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@ -1,3 +1,17 @@
2019-03-18 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.opt (mcode-density-frame): Get the inital value
from TARGET_CODE_DENSITY_FRAME_DEFAULT.
* config/arc/elf.h (TARGET_CODE_DENSITY_FRAME_DEFAULT): Define.
* config/arc/linux.h (TARGET_CODE_DENSITY_FRAME_DEFAULT): Define.
* config/arc/arc.md (pop_multi_fp_blink): Adjust constraints to
match what the ops is doing.
(push_multi_fp_blink): Likewise.
* config/arc/arc.c (arc_override_options): Enable enter/leave when
compiling for size and elf target.
(arc_save_callee_enter): Adjust note to match what enter/leave
operation does.
2019-03-18 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.md (tst_movb): Fix constraint.

5
gcc/config/arc/arc.c
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@ -1294,6 +1294,9 @@ arc_override_options (void)
if (arc_size_opt_level == 3)
optimize_size = 1;
if (TARGET_V2 && optimize_size && (ATTRIBUTE_PCS == 2))
TARGET_CODE_DENSITY_FRAME = 1;
if (flag_pic)
target_flags |= MASK_NO_SDATA_SET;
@ -3140,7 +3143,7 @@ arc_save_callee_enter (unsigned int gmask,
reg = gen_rtx_SET (stack_pointer_rtx,
plus_constant (Pmode,
stack_pointer_rtx,
nregs * UNITS_PER_WORD));
-nregs * UNITS_PER_WORD));
RTX_FRAME_RELATED_P (reg) = 1;
XVECEXP (insn, 0, indx++) = reg;
off = nregs * UNITS_PER_WORD;

22
gcc/config/arc/arc.md
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@ -6458,7 +6458,8 @@ core_3, archs4x, archs4xd, archs4xd_slow"
(plus:SI (reg:SI SP_REG)
(match_operand 1 "immediate_operand" "")))
(set (mem:SI (plus:SI (reg:SI SP_REG)
(match_dup 1)))
(match_operand 2 "immediate_operand"
"")))
(reg:SI 13))])]
"TARGET_CODE_DENSITY"
{
@ -6466,14 +6467,14 @@ core_3, archs4x, archs4xd, archs4xd_slow"
rtx tmp = XVECEXP (operands[0], 0, len - 1);
if (MEM_P (XEXP (tmp, 0)))
{
operands[2] = XEXP (tmp, 1);
return "enter_s\\t{r13-%2} ; sp=sp-%1";
operands[3] = XEXP (tmp, 1);
return "enter_s\\t{r13-%3} ; sp=sp+(%1)";
}
else
{
tmp = XVECEXP (operands[0], 0, len - 3);
operands[2] = XEXP (tmp, 1);
return "enter_s\\t{r13-%2, fp} ; sp=sp-%1";
operands[3] = XEXP (tmp, 1);
return "enter_s\\t{r13-%3, fp} ; sp=sp+(%1)";
}
}
[(set_attr "type" "call_no_delay_slot")
@ -6485,7 +6486,8 @@ core_3, archs4x, archs4xd, archs4xd_slow"
(plus:SI (reg:SI SP_REG)
(match_operand 1 "immediate_operand" "")))
(set (mem:SI (plus:SI (reg:SI SP_REG)
(match_dup 1)))
(match_operand 2 "immediate_operand"
"")))
(reg:SI RETURN_ADDR_REGNUM))])]
"TARGET_CODE_DENSITY"
{
@ -6493,14 +6495,14 @@ core_3, archs4x, archs4xd, archs4xd_slow"
rtx tmp = XVECEXP (operands[0], 0, len - 1);
if (MEM_P (XEXP (tmp, 0)))
{
operands[2] = XEXP (tmp, 1);
return "enter_s\\t{r13-%2, blink} ; sp=sp-%1";
operands[3] = XEXP (tmp, 1);
return "enter_s\\t{r13-%3, blink} ; sp=sp+(%1)";
}
else
{
tmp = XVECEXP (operands[0], 0, len - 3);
operands[2] = XEXP (tmp, 1);
return "enter_s\\t{r13-%2, fp, blink} ; sp=sp-%1";
operands[3] = XEXP (tmp, 1);
return "enter_s\\t{r13-%3, fp, blink} ; sp=sp+(%1)";
}
}
[(set_attr "type" "call_no_delay_slot")

2
gcc/config/arc/arc.opt
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@ -537,5 +537,5 @@ Target Report Var(TARGET_BRANCH_INDEX) Init(DEFAULT_BRANCH_INDEX)
Enable use of BI/BIH instructions when available.
mcode-density-frame
Target Report Var(TARGET_CODE_DENSITY_FRAME)
Target Report Var(TARGET_CODE_DENSITY_FRAME) Init(TARGET_CODE_DENSITY_FRAME_DEFAULT)
Enable ENTER_S and LEAVE_S opcodes for ARCv2.

4
gcc/config/arc/elf.h
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@ -87,3 +87,7 @@ along with GCC; see the file COPYING3. If not see
fun = gen_rtx_SYMBOL_REF (Pmode, "__mcount"); \
emit_library_call (fun, LCT_NORMAL, VOIDmode); \
}
/* Enter/Leave default value. */
#undef TARGET_CODE_DENSITY_FRAME_DEFAULT
#define TARGET_CODE_DENSITY_FRAME_DEFAULT 0

4
gcc/config/arc/linux.h
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@ -133,3 +133,7 @@ along with GCC; see the file COPYING3. If not see
fun = gen_rtx_SYMBOL_REF (Pmode, "_mcount"); \
emit_library_call (fun, LCT_NORMAL, VOIDmode, rt, Pmode); \
}
/* Enter/Leave ops are default off for linux targets. */
#undef TARGET_CODE_DENSITY_FRAME_DEFAULT
#define TARGET_CODE_DENSITY_FRAME_DEFAULT 0