rs6000: Delete -mmfpgpr

This patch makes the -mmfpgpr option not do anything except warn that
the option is deprecated.


	* config/rs6000/rs6000.h (MASK_MFPGPR): Delete.
	* config/rs6000/rs6000.c (direct_move_p): Adjust.
	(rs6000_secondary_reload_simple_move): Adjust.
	(rs6000_opt_masks): Neuter the "mfpgpr" option.
	* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust.
	* config/rs6000/rs6000-cpus.def (ISA_2_5_MASKS_EMBEDDED): Adjust
	comment.
	(power6x): Adjust.
	* config/rs6000/rs6000.md (floatsi<mode>2_lfiwax): Adjust.
	(floatunssi<mode>2_lfiwzx): Adjust.
	(fix_trunc<mode>si2_stfiwx): Adjust.
	(fixuns_trunc<mode>si2_stfiwx): Adjust.
	* config/rs6000/rs6000.opt (mno-mfpgpr): New.
	(mfpgpr): Mark as deprecated.
	* doc/extend.texi (PowerPC Function Attributes): Delete mfpgpr.
	(Basic PowerPC Built-in Functions Available on ISA 2.05): Adjust.
	* doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mmfpgpr.

gcc/testsuite/
	* gcc.target/powerpc/mmfpgpr.c: Delete.

From-SVN: r271889
This commit is contained in:
Segher Boessenkool 2019-06-04 00:36:24 +02:00 committed by Segher Boessenkool
parent ec7fd7807d
commit fbd4b7f39e
11 changed files with 48 additions and 79 deletions

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@ -1,3 +1,23 @@
2019-06-03 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.h (MASK_MFPGPR): Delete.
* config/rs6000/rs6000.c (direct_move_p): Adjust.
(rs6000_secondary_reload_simple_move): Adjust.
(rs6000_opt_masks): Neuter the "mfpgpr" option.
* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust.
* config/rs6000/rs6000-cpus.def (ISA_2_5_MASKS_EMBEDDED): Adjust
comment.
(power6x): Adjust.
* config/rs6000/rs6000.md (floatsi<mode>2_lfiwax): Adjust.
(floatunssi<mode>2_lfiwzx): Adjust.
(fix_trunc<mode>si2_stfiwx): Adjust.
(fixuns_trunc<mode>si2_stfiwx): Adjust.
* config/rs6000/rs6000.opt (mno-mfpgpr): New.
(mfpgpr): Mark as deprecated.
* doc/extend.texi (PowerPC Function Attributes): Delete mfpgpr.
(Basic PowerPC Built-in Functions Available on ISA 2.05): Adjust.
* doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mmfpgpr.
2019-06-03 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/constraints.md (define_register_constraint "wg"):

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@ -430,8 +430,6 @@ rs6000_target_modify_macros (bool define_p, HOST_WIDE_INT flags,
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR5X");
if ((flags & OPTION_MASK_CMPB) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR6");
if ((flags & OPTION_MASK_MFPGPR) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR6X");
if ((flags & OPTION_MASK_POPCNTD) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR7");
/* Note that the OPTION_MASK_DIRECT_MOVE flag is automatically

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@ -24,10 +24,9 @@
#define ISA_2_2_MASKS (ISA_2_1_MASKS | OPTION_MASK_POPCNTB)
#define ISA_2_4_MASKS (ISA_2_2_MASKS | OPTION_MASK_FPRND)
/* For ISA 2.05, do not add MFPGPR, since it isn't in ISA 2.06, and don't add
ALTIVEC, since in general it isn't a win on power6. In ISA 2.04, fsel,
fre, fsqrt, etc. were no longer documented as optional. Group masks by
server and embedded. */
/* For ISA 2.05, don't add ALTIVEC, since in general it isn't a win on
power6. In ISA 2.04, fsel, fre, fsqrt, etc. were no longer documented
as optional. Group masks by server and embedded. */
#define ISA_2_5_MASKS_EMBEDDED (ISA_2_4_MASKS \
| OPTION_MASK_CMPB \
| OPTION_MASK_RECIP_PRECISION \
@ -130,7 +129,6 @@
| OPTION_MASK_HTM \
| OPTION_MASK_ISEL \
| OPTION_MASK_MFCRF \
| OPTION_MASK_MFPGPR \
| OPTION_MASK_MODULO \
| OPTION_MASK_MULHW \
| OPTION_MASK_NO_UPDATE \
@ -236,7 +234,7 @@ RS6000_CPU ("power6", PROCESSOR_POWER6, MASK_POWERPC64 | MASK_PPC_GPOPT
| MASK_CMPB | MASK_DFP | MASK_RECIP_PRECISION)
RS6000_CPU ("power6x", PROCESSOR_POWER6, MASK_POWERPC64 | MASK_PPC_GPOPT
| MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND
| MASK_CMPB | MASK_DFP | MASK_MFPGPR | MASK_RECIP_PRECISION)
| MASK_CMPB | MASK_DFP | MASK_RECIP_PRECISION)
RS6000_CPU ("power7", PROCESSOR_POWER7, MASK_POWERPC64 | ISA_2_6_MASKS_SERVER)
RS6000_CPU ("power8", PROCESSOR_POWER8, MASK_POWERPC64 | ISA_2_7_MASKS_SERVER)
RS6000_CPU ("power9", PROCESSOR_POWER9, MASK_POWERPC64 | ISA_3_0_MASKS_SERVER)

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@ -7473,30 +7473,22 @@ gpr_or_gpr_p (rtx op0, rtx op1)
bool
direct_move_p (rtx op0, rtx op1)
{
int regno0, regno1;
if (!REG_P (op0) || !REG_P (op1))
return false;
if (!TARGET_DIRECT_MOVE && !TARGET_MFPGPR)
if (!TARGET_DIRECT_MOVE)
return false;
regno0 = REGNO (op0);
regno1 = REGNO (op1);
int regno0 = REGNO (op0);
int regno1 = REGNO (op1);
if (!HARD_REGISTER_NUM_P (regno0) || !HARD_REGISTER_NUM_P (regno1))
return false;
if (INT_REGNO_P (regno0))
return (TARGET_DIRECT_MOVE) ? VSX_REGNO_P (regno1) : FP_REGNO_P (regno1);
if (INT_REGNO_P (regno0) && VSX_REGNO_P (regno1))
return true;
else if (INT_REGNO_P (regno1))
{
if (TARGET_MFPGPR && FP_REGNO_P (regno0))
return true;
else if (TARGET_DIRECT_MOVE && VSX_REGNO_P (regno0))
return true;
}
if (VSX_REGNO_P (regno0) && INT_REGNO_P (regno1))
return true;
return false;
}
@ -19079,12 +19071,6 @@ rs6000_secondary_reload_simple_move (enum rs6000_reg_type to_type,
return true;
}
/* Power6+: MFTGPR or MFFGPR. */
else if (TARGET_MFPGPR && TARGET_POWERPC64 && size == 8
&& ((to_type == GPR_REG_TYPE && from_type == FPR_REG_TYPE)
|| (to_type == FPR_REG_TYPE && from_type == GPR_REG_TYPE)))
return true;
/* Move to/from SPR. */
else if ((size == 4 || (TARGET_POWERPC64 && size == 8))
&& ((to_type == GPR_REG_TYPE && from_type == SPR_REG_TYPE)
@ -36452,7 +36438,7 @@ static struct rs6000_opt_mask const rs6000_opt_masks[] =
{ "htm", OPTION_MASK_HTM, false, true },
{ "isel", OPTION_MASK_ISEL, false, true },
{ "mfcrf", OPTION_MASK_MFCRF, false, true },
{ "mfpgpr", OPTION_MASK_MFPGPR, false, true },
{ "mfpgpr", 0, false, true },
{ "modulo", OPTION_MASK_MODULO, false, true },
{ "mulhw", OPTION_MASK_MULHW, false, true },
{ "multiple", OPTION_MASK_MULTIPLE, false, true },

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@ -509,7 +509,6 @@ extern int rs6000_vector_align[];
#define MASK_HTM OPTION_MASK_HTM
#define MASK_ISEL OPTION_MASK_ISEL
#define MASK_MFCRF OPTION_MASK_MFCRF
#define MASK_MFPGPR OPTION_MASK_MFPGPR
#define MASK_MULHW OPTION_MASK_MULHW
#define MASK_MULTIPLE OPTION_MASK_MULTIPLE
#define MASK_NO_UPDATE OPTION_MASK_NO_UPDATE

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@ -5265,8 +5265,7 @@
rtx src = operands[1];
rtx tmp;
if (!MEM_P (src) && TARGET_POWERPC64
&& (TARGET_MFPGPR || TARGET_DIRECT_MOVE))
if (!MEM_P (src) && TARGET_POWERPC64 && TARGET_DIRECT_MOVE)
tmp = convert_to_mode (DImode, src, false);
else
{
@ -5341,8 +5340,7 @@
rtx src = operands[1];
rtx tmp;
if (!MEM_P (src) && TARGET_POWERPC64
&& (TARGET_MFPGPR || TARGET_DIRECT_MOVE))
if (!MEM_P (src) && TARGET_POWERPC64 && TARGET_DIRECT_MOVE)
tmp = convert_to_mode (DImode, src, true);
else
{
@ -5703,7 +5701,7 @@
emit_insn (gen_stfiwx (dest, tmp));
DONE;
}
else if (TARGET_POWERPC64 && (TARGET_MFPGPR || TARGET_DIRECT_MOVE) && !MEM_P (dest))
else if (TARGET_POWERPC64 && TARGET_DIRECT_MOVE && !MEM_P (dest))
{
dest = gen_lowpart (DImode, dest);
emit_move_insn (dest, tmp);
@ -5851,7 +5849,7 @@
emit_insn (gen_stfiwx (dest, tmp));
DONE;
}
else if (TARGET_POWERPC64 && (TARGET_MFPGPR || TARGET_DIRECT_MOVE))
else if (TARGET_POWERPC64 && TARGET_DIRECT_MOVE)
{
dest = gen_lowpart (DImode, dest);
emit_move_insn (dest, tmp);

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@ -144,9 +144,12 @@ mcmpb
Target Report Mask(CMPB) Var(rs6000_isa_flags)
Use PowerPC V2.05 compare bytes instruction.
;; This option existed in the past, but now is always off.
mno-mfpgpr
Target RejectNegative Undocumented Ignore
mmfpgpr
Target Report Mask(MFPGPR) Var(rs6000_isa_flags)
Use extended PowerPC V2.05 move floating point to/from GPR instructions.
Target RejectNegative Undocumented Deprecated
maltivec
Target Report Mask(ALTIVEC) Var(rs6000_isa_flags)

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@ -5432,13 +5432,6 @@ Generate code that uses (does not use) the move from condition
register field instruction implemented on the POWER4 processor and
other processors that support the PowerPC V2.01 architecture.
@item mfpgpr
@itemx no-mfpgpr
@cindex @code{target("mfpgpr")} function attribute, PowerPC
Generate code that uses (does not use) the FP move to/from general
purpose register instructions implemented on the POWER6X processor and
other processors that support the extended PowerPC V2.05 architecture.
@item mulhw
@itemx no-mulhw
@cindex @code{target("mulhw")} function attribute, PowerPC
@ -16879,8 +16872,8 @@ enabling the @option{-mpowerpc64}, @option{-mpowerpc-gpopt},
@option{-mpowerpc-gfxopt}, @option{-mmfcrf}, @option{-mpopcntb},
@option{-mfprnd}, @option{-mcmpb}, @option{-mhard-dfp}, and
@option{-mrecip-precision} options. Specify the
@option{-maltivec} and @option{-mfpgpr} options explicitly in
combination with the above options if they are desired.
@option{-maltivec} option explicitly in
combination with the above options if desired.
The following functions require option @option{-mcmpb}.
@smallexample

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@ -1076,7 +1076,7 @@ See RS/6000 and PowerPC Options.
-mpowerpc-gfxopt -mno-powerpc-gfxopt @gol
-mmfcrf -mno-mfcrf -mpopcntb -mno-popcntb -mpopcntd -mno-popcntd @gol
-mfprnd -mno-fprnd @gol
-mcmpb -mno-cmpb -mmfpgpr -mno-mfpgpr -mhard-dfp -mno-hard-dfp @gol
-mcmpb -mno-cmpb -mhard-dfp -mno-hard-dfp @gol
-mfull-toc -mminimal-toc -mno-fp-in-toc -mno-sum-in-toc @gol
-m64 -m32 -mxl-compat -mno-xl-compat -mpe @gol
-malign-power -malign-natural @gol
@ -24014,8 +24014,6 @@ These @samp{-m} options are defined for the IBM RS/6000 and PowerPC:
@need 800
@itemx -mcmpb
@itemx -mno-cmpb
@itemx -mmfpgpr
@itemx -mno-mfpgpr
@itemx -mhard-dfp
@itemx -mno-hard-dfp
@opindex mpowerpc-gpopt
@ -24034,8 +24032,6 @@ These @samp{-m} options are defined for the IBM RS/6000 and PowerPC:
@opindex mno-fprnd
@opindex mcmpb
@opindex mno-cmpb
@opindex mmfpgpr
@opindex mno-mfpgpr
@opindex mhard-dfp
@opindex mno-hard-dfp
You use these options to specify which instructions are available on the
@ -24069,10 +24065,6 @@ processors that support the PowerPC V2.03 architecture.
The @option{-mcmpb} option allows GCC to generate the compare bytes
instruction implemented on the POWER6 processor and other processors
that support the PowerPC V2.05 architecture.
The @option{-mmfpgpr} option allows GCC to generate the FP move to/from
general-purpose register instructions implemented on the POWER6X
processor and other processors that support the extended PowerPC V2.05
architecture.
The @option{-mhard-dfp} option allows GCC to generate the decimal
floating-point instructions implemented on some POWER processors.

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@ -1,3 +1,7 @@
2019-06-03 Segher Boessenkool <segher@kernel.crashing.org>
* gcc.target/powerpc/mmfpgpr.c: Delete.
2019-06-03 David Edelsohn <dje.gcc@gmail.com>
* gcc.dg/debug/enum-1.c: Add -fno-eliminate-unused-debug-symbols

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@ -1,22 +0,0 @@
/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } } */
/* { dg-require-effective-target powerpc_vsx_ok } */
/* { dg-options "-O2 -mdejagnu-cpu=power6x -mmfpgpr" } */
/* { dg-final { scan-assembler "mffgpr" } } */
/* { dg-final { scan-assembler "mftgpr" } } */
/* Test that we generate the instructions to move between the GPR and FPR
registers under power6x. */
extern long return_long (void);
extern double return_double (void);
double return_double2 (void)
{
return (double) return_long ();
}
long return_long2 (void)
{
return (long) return_double ();
}