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* [gcc(refs/users/meissner/heads/work164)] Add -mcpu=future support.
@ 2024-04-08 20:16 Michael Meissner
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From: Michael Meissner @ 2024-04-08 20:16 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:d480207ec78d59dbf6af1501cb8aaac605fe109c
commit d480207ec78d59dbf6af1501cb8aaac605fe109c
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Mon Apr 8 16:15:07 2024 -0400
Add -mcpu=future support.
This patch adds the future option to the -mcpu= and -mtune= switches.
This patch treats the future like a power11 in terms of costs and reassociation
width.
This patch issues a ".machine future" to the assembly file if you use
-mcpu=power11.
This patch defines _ARCH_PWR_FUTURE if the user uses -mcpu=future.
This patch allows GCC to be configured with the --with-cpu=future and
--with-tune=future options.
This patch passes -mfuture to the assembler if the user uses -mcpu=future.
2024-04-08 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config.gcc (rs6000*-*-*, powerpc*-*-*): Add support for power11.
* config/rs6000/aix71.h (ASM_CPU_SPEC): Add support for -mcpu=power11.
* config/rs6000/aix72.h (ASM_CPU_SPEC): Likewise.
* config/rs6000/aix73.h (ASM_CPU_SPEC): Likewise.
* config/rs6000/driver-rs6000.cc (asm_names): Likewise.
* config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Define
_ARCH_PWR_FUTURE if -mcpu=future.
* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): New define.
(POWERPC_MASKS): Add future isa bit.
(power11 cpu): Add future definition.
* config/rs6000/rs6000-opts.h (PROCESSOR_FUTURE): Add future processor.
* config/rs6000/rs6000-string.cc (expand_compare_loop): Likewise.
* config/rs6000/rs6000-tables.opt: Regenerate.
* config/rs6000/rs6000.cc (rs6000_option_override_internal): Add future
support.
(rs6000_machine_from_flags): Likewise.
(rs6000_reassociation_width): Likewise.
(rs6000_adjust_cost): Likewise.
(rs6000_issue_rate): Likewise.
(rs6000_sched_reorder): Likewise.
(rs6000_sched_reorder2): Likewise.
(rs6000_register_move_cost): Likewise.
(rs6000_opt_masks): Likewise.
* config/rs6000/rs6000.h (ASM_CPU_SPEC): Likewise.
* config/rs6000/rs6000.md (cpu attribute): Add future.
* config/rs6000/rs6000.opt (-mpower11): Add internal future ISA flag.
* doc/invoke.texi (RS/6000 and PowerPC Options): Document -mcpu=future.
Diff:
---
gcc/config.gcc | 4 ++--
gcc/config/rs6000/aix71.h | 1 +
gcc/config/rs6000/aix72.h | 1 +
gcc/config/rs6000/aix73.h | 1 +
gcc/config/rs6000/driver-rs6000.cc | 2 ++
gcc/config/rs6000/rs6000-c.cc | 2 ++
gcc/config/rs6000/rs6000-cpus.def | 5 +++++
gcc/config/rs6000/rs6000-opts.h | 3 ++-
gcc/config/rs6000/rs6000-string.cc | 1 +
gcc/config/rs6000/rs6000-tables.opt | 3 +++
gcc/config/rs6000/rs6000.cc | 30 ++++++++++++++++++++++--------
gcc/config/rs6000/rs6000.h | 1 +
gcc/config/rs6000/rs6000.md | 2 +-
gcc/config/rs6000/rs6000.opt | 3 +++
gcc/doc/invoke.texi | 2 +-
15 files changed, 48 insertions(+), 13 deletions(-)
diff --git a/gcc/config.gcc b/gcc/config.gcc
index d9e4bef503a..225d21c394d 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -532,7 +532,7 @@ powerpc*-*-*)
extra_headers="${extra_headers} amo.h"
case x$with_cpu in
xpowerpc64 | xdefault64 | x6[23]0 | x970 | xG5 | xpower[3456789] \
- | xpower1[01] | xpower6x | xrs64a | xcell | xa2 | xe500mc64 \
+ | xpower1[01] | xfuture | xpower6x | xrs64a | xcell | xa2 | xe500mc64 \
| xe5500 | xe6500)
cpu_is_64bit=yes
;;
@@ -5593,7 +5593,7 @@ case "${target}" in
eval "with_$which=405"
;;
"" | common | native \
- | power[3456789] | power1[01] | power5+ | power6x \
+ | power[3456789] | power1[01] | power5+ | power6x | future \
| powerpc | powerpc64 | powerpc64le \
| rs64 \
| 401 | 403 | 405 | 405fp | 440 | 440fp | 464 | 464fp \
diff --git a/gcc/config/rs6000/aix71.h b/gcc/config/rs6000/aix71.h
index 41037b3852d..570ddcc451d 100644
--- a/gcc/config/rs6000/aix71.h
+++ b/gcc/config/rs6000/aix71.h
@@ -79,6 +79,7 @@ do { \
#undef ASM_CPU_SPEC
#define ASM_CPU_SPEC \
"%{mcpu=native: %(asm_cpu_native); \
+ mcpu=future: -mfuture; \
mcpu=power11: -mpwr11; \
mcpu=power10: -mpwr10; \
mcpu=power9: -mpwr9; \
diff --git a/gcc/config/rs6000/aix72.h b/gcc/config/rs6000/aix72.h
index fe59f8319b4..242ca94bd06 100644
--- a/gcc/config/rs6000/aix72.h
+++ b/gcc/config/rs6000/aix72.h
@@ -79,6 +79,7 @@ do { \
#undef ASM_CPU_SPEC
#define ASM_CPU_SPEC \
"%{mcpu=native: %(asm_cpu_native); \
+ mcpu=future: -mfuture; \
mcpu=power11: -mpwr11; \
mcpu=power10: -mpwr10; \
mcpu=power9: -mpwr9; \
diff --git a/gcc/config/rs6000/aix73.h b/gcc/config/rs6000/aix73.h
index 1318b0b3662..2bd6b4bb3c4 100644
--- a/gcc/config/rs6000/aix73.h
+++ b/gcc/config/rs6000/aix73.h
@@ -79,6 +79,7 @@ do { \
#undef ASM_CPU_SPEC
#define ASM_CPU_SPEC \
"%{mcpu=native: %(asm_cpu_native); \
+ mcpu=future: -mfuture; \
mcpu=power11: -mpwr11; \
mcpu=power10: -mpwr10; \
mcpu=power9: -mpwr9; \
diff --git a/gcc/config/rs6000/driver-rs6000.cc b/gcc/config/rs6000/driver-rs6000.cc
index f4900724b98..99791250be4 100644
--- a/gcc/config/rs6000/driver-rs6000.cc
+++ b/gcc/config/rs6000/driver-rs6000.cc
@@ -441,6 +441,7 @@ struct asm_name {
static const struct asm_name asm_names[] = {
#if defined (_AIX)
+ { "future", "-mfuture" },
{ "power3", "-m620" },
{ "power4", "-mpwr4" },
{ "power5", "-mpwr5" },
@@ -470,6 +471,7 @@ static const struct asm_name asm_names[] = {
#else
{ "cell", "-mcell" },
+ { "future", "-mfuture" },
{ "power3", "-mppc64" },
{ "power4", "-mpower4" },
{ "power5", "-mpower5" },
diff --git a/gcc/config/rs6000/rs6000-c.cc b/gcc/config/rs6000/rs6000-c.cc
index ebed8b9554a..d15bb85743c 100644
--- a/gcc/config/rs6000/rs6000-c.cc
+++ b/gcc/config/rs6000/rs6000-c.cc
@@ -449,6 +449,8 @@ rs6000_target_modify_macros (bool define_p, HOST_WIDE_INT flags)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR10");
if ((flags & OPTION_MASK_POWER11) != 0)
rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR11");
+ if ((flags & OPTION_MASK_FUTURE) != 0)
+ rs6000_define_or_undefine_macro (define_p, "_ARCH_PWR_FUTURE");
if ((flags & OPTION_MASK_SOFT_FLOAT) != 0)
rs6000_define_or_undefine_macro (define_p, "_SOFT_FLOAT");
if ((flags & OPTION_MASK_RECIP_PRECISION) != 0)
diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index 3237a5ada30..47365534af8 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -89,6 +89,9 @@
#define ISA_POWER11_MASKS_SERVER (ISA_3_1_MASKS_SERVER \
| OPTION_MASK_POWER11)
+#define ISA_FUTURE_MASKS_SERVER (ISA_POWER11_MASKS_SERVER \
+ | OPTION_MASK_FUTURE)
+
/* Flags that need to be turned off if -mno-vsx. */
#define OTHER_VSX_VECTOR_MASKS (OPTION_MASK_EFFICIENT_UNALIGNED_VSX \
| OPTION_MASK_FLOAT128_KEYWORD \
@@ -127,6 +130,7 @@
| OPTION_MASK_FLOAT128_HW \
| OPTION_MASK_FLOAT128_KEYWORD \
| OPTION_MASK_FPRND \
+ | OPTION_MASK_FUTURE \
| OPTION_MASK_POWER10 \
| OPTION_MASK_POWER11 \
| OPTION_MASK_P10_FUSION \
@@ -262,3 +266,4 @@ RS6000_CPU ("powerpc64le", PROCESSOR_POWER8, MASK_POWERPC64
| ISA_2_7_MASKS_SERVER | OPTION_MASK_HTM)
RS6000_CPU ("rs64", PROCESSOR_RS64A, OPTION_MASK_PPC_GFXOPT | MASK_POWERPC64)
RS6000_CPU ("power11", PROCESSOR_POWER11, MASK_POWERPC64 | ISA_POWER11_MASKS_SERVER)
+RS6000_CPU ("future", PROCESSOR_FUTURE, MASK_POWERPC64 | ISA_FUTURE_MASKS_SERVER)
diff --git a/gcc/config/rs6000/rs6000-opts.h b/gcc/config/rs6000/rs6000-opts.h
index 4f5af57ae1a..d6c766309aa 100644
--- a/gcc/config/rs6000/rs6000-opts.h
+++ b/gcc/config/rs6000/rs6000-opts.h
@@ -68,7 +68,8 @@ enum processor_type
PROCESSOR_CELL,
PROCESSOR_PPCA2,
PROCESSOR_TITAN,
- PROCESSOR_POWER11
+ PROCESSOR_POWER11,
+ PROCESSOR_FUTURE
};
diff --git a/gcc/config/rs6000/rs6000-string.cc b/gcc/config/rs6000/rs6000-string.cc
index 9c8a81172e3..e74ccf41937 100644
--- a/gcc/config/rs6000/rs6000-string.cc
+++ b/gcc/config/rs6000/rs6000-string.cc
@@ -965,6 +965,7 @@ expand_compare_loop (rtx operands[])
case PROCESSOR_POWER9:
case PROCESSOR_POWER10:
case PROCESSOR_POWER11:
+ case PROCESSOR_FUTURE:
if (bytes_is_const)
max_bytes = 191;
else
diff --git a/gcc/config/rs6000/rs6000-tables.opt b/gcc/config/rs6000/rs6000-tables.opt
index 7e5bb6e7658..f009c4e5718 100644
--- a/gcc/config/rs6000/rs6000-tables.opt
+++ b/gcc/config/rs6000/rs6000-tables.opt
@@ -200,3 +200,6 @@ Enum(rs6000_cpu_opt_value) String(rs64) Value(56)
EnumValue
Enum(rs6000_cpu_opt_value) String(power11) Value(57)
+EnumValue
+Enum(rs6000_cpu_opt_value) String(future) Value(58)
+
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index b718b9cf0bc..2921e72aea8 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -1067,7 +1067,7 @@ struct processor_costs power9_cost = {
COSTS_N_INSNS (3), /* SF->DF convert */
};
-/* Instruction costs on POWER10/POWER11 processors. */
+/* Instruction costs on POWER10/POWER11/FUTURE processors. */
static const
struct processor_costs power10_cost = {
COSTS_N_INSNS (2), /* mulsi */
@@ -4380,7 +4380,8 @@ rs6000_option_override_internal (bool global_init_p)
if (!(rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION))
{
if (rs6000_tune == PROCESSOR_POWER10
- || rs6000_tune == PROCESSOR_POWER11)
+ || rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE)
rs6000_isa_flags |= OPTION_MASK_P10_FUSION;
else
rs6000_isa_flags &= ~OPTION_MASK_P10_FUSION;
@@ -4410,6 +4411,7 @@ rs6000_option_override_internal (bool global_init_p)
&& rs6000_tune != PROCESSOR_POWER9
&& rs6000_tune != PROCESSOR_POWER10
&& rs6000_tune != PROCESSOR_POWER11
+ && rs6000_tune != PROCESSOR_FUTURE
&& rs6000_tune != PROCESSOR_PPCA2
&& rs6000_tune != PROCESSOR_CELL
&& rs6000_tune != PROCESSOR_PPC476);
@@ -4425,6 +4427,7 @@ rs6000_option_override_internal (bool global_init_p)
|| rs6000_tune == PROCESSOR_POWER9
|| rs6000_tune == PROCESSOR_POWER10
|| rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE
|| rs6000_tune == PROCESSOR_PPCE500MC
|| rs6000_tune == PROCESSOR_PPCE500MC64
|| rs6000_tune == PROCESSOR_PPCE5500
@@ -4725,6 +4728,7 @@ rs6000_option_override_internal (bool global_init_p)
case PROCESSOR_POWER10:
case PROCESSOR_POWER11:
+ case PROCESSOR_FUTURE:
rs6000_cost = &power10_cost;
break;
@@ -5884,6 +5888,8 @@ rs6000_machine_from_flags (void)
/* Disable the flags that should never influence the .machine selection. */
flags &= ~(OPTION_MASK_PPC_GFXOPT | OPTION_MASK_PPC_GPOPT | OPTION_MASK_ISEL);
+ if ((flags & (ISA_FUTURE_MASKS_SERVER & ~ISA_POWER11_MASKS_SERVER)) != 0)
+ return "future";
if ((flags & (ISA_POWER11_MASKS_SERVER & ~ISA_3_1_MASKS_SERVER)) != 0)
return "power11";
if ((flags & (ISA_3_1_MASKS_SERVER & ~ISA_3_0_MASKS_SERVER)) != 0)
@@ -10133,6 +10139,7 @@ rs6000_reassociation_width (unsigned int opc ATTRIBUTE_UNUSED,
case PROCESSOR_POWER9:
case PROCESSOR_POWER10:
case PROCESSOR_POWER11:
+ case PROCESSOR_FUTURE:
if (DECIMAL_FLOAT_MODE_P (mode))
return 1;
if (VECTOR_MODE_P (mode))
@@ -18215,7 +18222,8 @@ rs6000_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn, int cost,
/* Separate a load from a narrower, dependent store. */
if ((rs6000_sched_groups || rs6000_tune == PROCESSOR_POWER9
|| rs6000_tune == PROCESSOR_POWER10
- || rs6000_tune == PROCESSOR_POWER11)
+ || rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE)
&& GET_CODE (PATTERN (insn)) == SET
&& GET_CODE (PATTERN (dep_insn)) == SET
&& MEM_P (XEXP (PATTERN (insn), 1))
@@ -18255,6 +18263,7 @@ rs6000_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn, int cost,
|| rs6000_tune == PROCESSOR_POWER9
|| rs6000_tune == PROCESSOR_POWER10
|| rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE
|| rs6000_tune == PROCESSOR_CELL)
&& recog_memoized (dep_insn)
&& (INSN_CODE (dep_insn) >= 0))
@@ -18830,6 +18839,7 @@ rs6000_issue_rate (void)
return 6;
case PROCESSOR_POWER10:
case PROCESSOR_POWER11:
+ case PROCESSOR_FUTURE:
return 8;
default:
return 1;
@@ -19545,10 +19555,11 @@ rs6000_sched_reorder (FILE *dump ATTRIBUTE_UNUSED, int sched_verbose,
if (rs6000_tune == PROCESSOR_POWER6)
load_store_pendulum = 0;
- /* Do Power10/power11 dependent reordering. */
+ /* Do Power10/power11/future dependent reordering. */
if (last_scheduled_insn
&& (rs6000_tune == PROCESSOR_POWER10
- || rs6000_tune == PROCESSOR_POWER11))
+ || rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE))
power10_sched_reorder (ready, n_ready - 1);
return rs6000_issue_rate ();
@@ -19572,10 +19583,11 @@ rs6000_sched_reorder2 (FILE *dump, int sched_verbose, rtx_insn **ready,
&& recog_memoized (last_scheduled_insn) >= 0)
return power9_sched_reorder2 (ready, *pn_ready - 1);
- /* Do Power10/power11 dependent reordering. */
+ /* Do Power10/power11/future dependent reordering. */
if (last_scheduled_insn
&& (rs6000_tune == PROCESSOR_POWER10
- || rs6000_tune == PROCESSOR_POWER11))
+ || rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE))
return power10_sched_reorder (ready, *pn_ready - 1);
return cached_can_issue_more;
@@ -22793,7 +22805,8 @@ rs6000_register_move_cost (machine_mode mode,
out to be a nop. */
if (rs6000_tune == PROCESSOR_POWER9
|| rs6000_tune == PROCESSOR_POWER10
- || rs6000_tune == PROCESSOR_POWER11)
+ || rs6000_tune == PROCESSOR_POWER11
+ || rs6000_tune == PROCESSOR_FUTURE)
ret = 3 * hard_regno_nregs (FIRST_GPR_REGNO, mode);
else
ret = 4 * hard_regno_nregs (FIRST_GPR_REGNO, mode);
@@ -24451,6 +24464,7 @@ static struct rs6000_opt_mask const rs6000_opt_masks[] =
{ "float128", OPTION_MASK_FLOAT128_KEYWORD, false, true },
{ "float128-hardware", OPTION_MASK_FLOAT128_HW, false, true },
{ "fprnd", OPTION_MASK_FPRND, false, true },
+ { "future", OPTION_MASK_FUTURE, false, false },
{ "power10", OPTION_MASK_POWER10, false, true },
{ "power11", OPTION_MASK_POWER11, false, false },
{ "hard-dfp", OPTION_MASK_DFP, false, true },
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index 407cb379a0c..79ce1a8cbf1 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -106,6 +106,7 @@
you make changes here, make them also there. */
#define ASM_CPU_SPEC \
"%{mcpu=native: %(asm_cpu_native); \
+ mcpu=future: -mfuture; \
mcpu=power11: -mpower11; \
mcpu=power10: -mpower10; \
mcpu=power9: -mpower9; \
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index ea4add5b283..abc809448ad 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -351,7 +351,7 @@
ppc403,ppc405,ppc440,ppc476,
ppc8540,ppc8548,ppce300c2,ppce300c3,ppce500mc,ppce500mc64,ppce5500,ppce6500,
power4,power5,power6,power7,power8,power9,power10,
- rs64a,mpccore,cell,ppca2,titan,power11"
+ rs64a,mpccore,cell,ppca2,titan,power11,future"
(const (symbol_ref "(enum attr_cpu) rs6000_tune")))
;; The ISA we implement.
diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
index e7a4e4a2ddd..621ebd65a88 100644
--- a/gcc/config/rs6000/rs6000.opt
+++ b/gcc/config/rs6000/rs6000.opt
@@ -584,6 +584,9 @@ Target Undocumented Mask(POWER10) Var(rs6000_isa_flags) WarnRemoved
mpower11
Target Undocumented Mask(POWER11) Var(rs6000_isa_flags) Warn(Do not use %<-mpower11>)
+mfuture
+Target Undocumented Mask(FUTURE) Var(rs6000_isa_flags) Warn(Do not use %<-mfuture>)
+
mprefixed
Target Mask(PREFIXED) Var(rs6000_isa_flags)
Generate (do not generate) prefixed memory instructions.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 96bac6ad2d4..36d6e18dabb 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -31277,7 +31277,7 @@ Supported values for @var{cpu_type} are @samp{401}, @samp{403},
@samp{e6500}, @samp{ec603e}, @samp{G3}, @samp{G4}, @samp{G5},
@samp{titan}, @samp{power3}, @samp{power4}, @samp{power5}, @samp{power5+},
@samp{power6}, @samp{power6x}, @samp{power7}, @samp{power8},
-@samp{power9}, @samp{power10}, @samp{power11},
+@samp{power9}, @samp{power10}, @samp{power11}, @samp{future},
@samp{powerpc}, @samp{powerpc64}, @samp{powerpc64le},
@samp{rs64}, and @samp{native}.
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