https://gcc.gnu.org/g:bf0b32d7929f8b4b15b21658d572b89ded03d8f8
commit r12-10303-gbf0b32d7929f8b4b15b21658d572b89ded03d8f8
Author: Lulu Cheng <chengl...@loongson.cn>
Date: Fri Mar 15 16:41:20 2024 +0800
LoongArch: gcc12: Implement option save/restore.
LTO option streaming and target attributes both require per-function
target configuration, which is achieved via option save/restore.
We implement TARGET_OPTION_{SAVE,RESTORE} to switch the la_target
context in addition to other automatically maintained option states
(via the "Save" option property in the .opt files).
PR target/113233
gcc/ChangeLog:
* config/loongarch/genopts/loongarch.opt.in: Mark options with
the "Save" property.
* config/loongarch/loongarch-opts.cc
(loongarch_update_gcc_opt_status): Update the value of the
la_target to global_options.
* config/loongarch/loongarch-opts.h
(loongarch_update_gcc_opt_status): Add a function declaration.
* config/loongarch/loongarch.cc
(loongarch_option_override_internal): Call the function
loongarch_update_gcc_opt_status.
(loongarch_option_save): New functions.
(loongarch_option_restore): Likewise.
(TARGET_OPTION_SAVE): Define macro.
(TARGET_OPTION_RESTORE): Likewise.
* config/loongarch/loongarch.opt: Regenerate.
(cherry picked from commit ea2a9c76a1dcffbbec6e53655bef9236d3a8e691)
Diff:
---
gcc/config/loongarch/genopts/loongarch.opt.in | 22 ++++++++---------
gcc/config/loongarch/loongarch-opts.cc | 22 +++++++++++++++++
gcc/config/loongarch/loongarch-opts.h | 6 +++++
gcc/config/loongarch/loongarch.cc | 34 +++++++++++++++++++++++++--
gcc/config/loongarch/loongarch.opt | 22 ++++++++---------
5 files changed, 82 insertions(+), 24 deletions(-)
diff --git a/gcc/config/loongarch/genopts/loongarch.opt.in
b/gcc/config/loongarch/genopts/loongarch.opt.in
index 420a3941b3b..a3107cb2294 100644
--- a/gcc/config/loongarch/genopts/loongarch.opt.in
+++ b/gcc/config/loongarch/genopts/loongarch.opt.in
@@ -58,7 +58,7 @@ EnumValue
Enum(isa_ext_fpu) String(@@STR_ISA_EXT_FPU64@@) Value(ISA_EXT_FPU64)
m@@OPTSTR_ISA_EXT_FPU@@=
-Target RejectNegative Joined ToLower Enum(isa_ext_fpu) Var(la_opt_fpu)
Init(M_OPTION_NOT_SEEN)
+Target RejectNegative Joined ToLower Enum(isa_ext_fpu) Var(la_opt_fpu)
Init(M_OPTION_NOT_SEEN) Save
-m@@OPTSTR_ISA_EXT_FPU@@=FPU Generate code for the given FPU.
m@@OPTSTR_ISA_EXT_FPU@@=@@STR_ISA_EXT_FPU0@@
@@ -92,11 +92,11 @@ EnumValue
Enum(cpu_type) String(@@STR_CPU_LA464@@) Value(CPU_LA464)
m@@OPTSTR_ARCH@@=
-Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_arch)
Init(M_OPTION_NOT_SEEN)
+Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_arch)
Init(M_OPTION_NOT_SEEN) Save
-m@@OPTSTR_ARCH@@=PROCESSOR Generate code for the given PROCESSOR ISA.
m@@OPTSTR_TUNE@@=
-Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_tune)
Init(M_OPTION_NOT_SEEN)
+Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_tune)
Init(M_OPTION_NOT_SEEN) Save
-m@@OPTSTR_TUNE@@=PROCESSOR Generate optimized code for PROCESSOR.
@@ -127,31 +127,31 @@ int la_opt_abi_ext = M_OPTION_NOT_SEEN
mbranch-cost=
-Target RejectNegative Joined UInteger Var(loongarch_branch_cost)
+Target RejectNegative Joined UInteger Var(loongarch_branch_cost) Save
-mbranch-cost=COST Set the cost of branches to roughly COST instructions.
mcheck-zero-division
-Target Mask(CHECK_ZERO_DIV)
+Target Mask(CHECK_ZERO_DIV) Save
Trap on integer divide by zero.
mcond-move-int
-Target Var(TARGET_COND_MOVE_INT) Init(1)
+Target Var(TARGET_COND_MOVE_INT) Init(1) Save
Conditional moves for integral are enabled.
mcond-move-float
-Target Var(TARGET_COND_MOVE_FLOAT) Init(1)
+Target Var(TARGET_COND_MOVE_FLOAT) Init(1) Save
Conditional moves for float are enabled.
mmemcpy
-Target Mask(MEMCPY)
+Target Mask(MEMCPY) Save
Prevent optimizing block moves, which is also the default behavior of -Os.
mstrict-align
-Target Var(TARGET_STRICT_ALIGN) Init(0)
+Target Var(TARGET_STRICT_ALIGN) Init(0) Save
Do not generate unaligned memory accesses.
mmax-inline-memcpy-size=
-Target Joined RejectNegative UInteger Var(loongarch_max_inline_memcpy_size)
Init(1024)
+Target Joined RejectNegative UInteger Var(loongarch_max_inline_memcpy_size)
Init(1024) Save
-mmax-inline-memcpy-size=SIZE Set the max size of memcpy to inline, default
is 1024.
; The code model option names for -mcmodel.
@@ -175,7 +175,7 @@ EnumValue
Enum(cmodel) String(@@STR_CMODEL_EXTREME@@) Value(CMODEL_EXTREME)
mcmodel=
-Target RejectNegative Joined Enum(cmodel) Var(la_opt_cmodel)
Init(CMODEL_NORMAL)
+Target RejectNegative Joined Enum(cmodel) Var(la_opt_cmodel)
Init(CMODEL_NORMAL) Save
Specify the code model.
mrelax
diff --git a/gcc/config/loongarch/loongarch-opts.cc
b/gcc/config/loongarch/loongarch-opts.cc
index eb9c2a52f9e..b55baeccd2f 100644
--- a/gcc/config/loongarch/loongarch-opts.cc
+++ b/gcc/config/loongarch/loongarch-opts.cc
@@ -575,3 +575,25 @@ multilib_enabled_abi_list ()
return XOBFINISH (&msg_obstack, const char *);
}
+
+/* option status feedback for "gcc --help=target -Q" */
+void
+loongarch_update_gcc_opt_status (struct loongarch_target *target,
+ struct gcc_options *opts,
+ struct gcc_options *opts_set)
+{
+ (void) opts_set;
+
+ /* status of -mabi */
+ opts->x_la_opt_abi_base = target->abi.base;
+
+ /* status of -march and -mtune */
+ opts->x_la_opt_cpu_arch = target->cpu_arch;
+ opts->x_la_opt_cpu_tune = target->cpu_tune;
+
+ /* status of -mcmodel */
+ opts->x_la_opt_cmodel = target->cmodel;
+
+ /* status of -mfpu */
+ opts->x_la_opt_fpu = target->isa.fpu;
+}
diff --git a/gcc/config/loongarch/loongarch-opts.h
b/gcc/config/loongarch/loongarch-opts.h
index b4115dd7f85..0557fff630d 100644
--- a/gcc/config/loongarch/loongarch-opts.h
+++ b/gcc/config/loongarch/loongarch-opts.h
@@ -39,6 +39,12 @@ loongarch_config_target (struct loongarch_target *target,
int opt_arch, int opt_tune, int opt_fpu,
int opt_abi_base, int opt_abi_ext,
int opt_cmodel, int follow_multilib_list);
+
+/* option status feedback for "gcc --help=target -Q" */
+void
+loongarch_update_gcc_opt_status (struct loongarch_target *target,
+ struct gcc_options *opts,
+ struct gcc_options *opts_set);
#endif
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 41819eba3d5..33b1919e7a3 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -5502,7 +5502,8 @@ loongarch_init_machine_status (void)
}
static void
-loongarch_option_override_internal (struct gcc_options *opts)
+loongarch_option_override_internal (struct gcc_options *opts,
+ struct gcc_options *opts_set)
{
int i, regno, mode;
@@ -5514,6 +5515,8 @@ loongarch_option_override_internal (struct gcc_options
*opts)
la_opt_cpu_arch, la_opt_cpu_tune, la_opt_fpu,
la_opt_abi_base, la_opt_abi_ext, la_opt_cmodel, 0);
+ loongarch_update_gcc_opt_status (&la_target, opts, opts_set);
+
if (TARGET_ABI_LP64)
flag_pcc_struct_return = 0;
@@ -5576,7 +5579,30 @@ loongarch_option_override_internal (struct gcc_options
*opts)
static void
loongarch_option_override (void)
{
- loongarch_option_override_internal (&global_options);
+ loongarch_option_override_internal (&global_options, &global_options_set);
+}
+
+/* Implement TARGET_OPTION_SAVE. */
+static void
+loongarch_option_save (struct cl_target_option *,
+ struct gcc_options *opts,
+ struct gcc_options *opts_set)
+{
+ loongarch_update_gcc_opt_status (&la_target, opts, opts_set);
+}
+
+/* Implement TARGET_OPTION_RESTORE. */
+static void
+loongarch_option_restore (struct gcc_options *,
+ struct gcc_options *,
+ struct cl_target_option *ptr)
+{
+ la_target.cpu_arch = ptr->x_la_opt_cpu_arch;
+ la_target.cpu_tune = ptr->x_la_opt_cpu_tune;
+
+ la_target.isa.fpu = ptr->x_la_opt_fpu;
+
+ la_target.cmodel = ptr->x_la_opt_cmodel;
}
/* Implement TARGET_CONDITIONAL_REGISTER_USAGE. */
@@ -5798,6 +5824,10 @@ loongarch_starting_frame_offset (void)
#undef TARGET_OPTION_OVERRIDE
#define TARGET_OPTION_OVERRIDE loongarch_option_override
+#define TARGET_OPTION_SAVE loongarch_option_save
+#undef TARGET_OPTION_RESTORE
+#define TARGET_OPTION_RESTORE loongarch_option_restore
+
#undef TARGET_LEGITIMIZE_ADDRESS
#define TARGET_LEGITIMIZE_ADDRESS loongarch_legitimize_address
diff --git a/gcc/config/loongarch/loongarch.opt
b/gcc/config/loongarch/loongarch.opt
index 3a39dcbd92e..7aef075c8c1 100644
--- a/gcc/config/loongarch/loongarch.opt
+++ b/gcc/config/loongarch/loongarch.opt
@@ -65,7 +65,7 @@ EnumValue
Enum(isa_ext_fpu) String(64) Value(ISA_EXT_FPU64)
mfpu=
-Target RejectNegative Joined ToLower Enum(isa_ext_fpu) Var(la_opt_fpu)
Init(M_OPTION_NOT_SEEN)
+Target RejectNegative Joined ToLower Enum(isa_ext_fpu) Var(la_opt_fpu)
Init(M_OPTION_NOT_SEEN) Save
-mfpu=FPU Generate code for the given FPU.
mfpu=0
@@ -99,11 +99,11 @@ EnumValue
Enum(cpu_type) String(la464) Value(CPU_LA464)
march=
-Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_arch)
Init(M_OPTION_NOT_SEEN)
+Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_arch)
Init(M_OPTION_NOT_SEEN) Save
-march=PROCESSOR Generate code for the given PROCESSOR ISA.
mtune=
-Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_tune)
Init(M_OPTION_NOT_SEEN)
+Target RejectNegative Joined Enum(cpu_type) Var(la_opt_cpu_tune)
Init(M_OPTION_NOT_SEEN) Save
-mtune=PROCESSOR Generate optimized code for PROCESSOR.
@@ -134,31 +134,31 @@ int la_opt_abi_ext = M_OPTION_NOT_SEEN
mbranch-cost=
-Target RejectNegative Joined UInteger Var(loongarch_branch_cost)
+Target RejectNegative Joined UInteger Var(loongarch_branch_cost) Save
-mbranch-cost=COST Set the cost of branches to roughly COST instructions.
mcheck-zero-division
-Target Mask(CHECK_ZERO_DIV)
+Target Mask(CHECK_ZERO_DIV) Save
Trap on integer divide by zero.
mcond-move-int
-Target Var(TARGET_COND_MOVE_INT) Init(1)
+Target Var(TARGET_COND_MOVE_INT) Init(1) Save
Conditional moves for integral are enabled.
mcond-move-float
-Target Var(TARGET_COND_MOVE_FLOAT) Init(1)
+Target Var(TARGET_COND_MOVE_FLOAT) Init(1) Save
Conditional moves for float are enabled.
mmemcpy
-Target Mask(MEMCPY)
+Target Mask(MEMCPY) Save
Prevent optimizing block moves, which is also the default behavior of -Os.
mstrict-align
-Target Var(TARGET_STRICT_ALIGN) Init(0)
+Target Var(TARGET_STRICT_ALIGN) Init(0) Save
Do not generate unaligned memory accesses.
mmax-inline-memcpy-size=
-Target Joined RejectNegative UInteger Var(loongarch_max_inline_memcpy_size)
Init(1024)
+Target Joined RejectNegative UInteger Var(loongarch_max_inline_memcpy_size)
Init(1024) Save
-mmax-inline-memcpy-size=SIZE Set the max size of memcpy to inline, default
is 1024.
; The code model option names for -mcmodel.
@@ -182,7 +182,7 @@ EnumValue
Enum(cmodel) String(extreme) Value(CMODEL_EXTREME)
mcmodel=
-Target RejectNegative Joined Enum(cmodel) Var(la_opt_cmodel)
Init(CMODEL_NORMAL)
+Target RejectNegative Joined Enum(cmodel) Var(la_opt_cmodel)
Init(CMODEL_NORMAL) Save
Specify the code model.
mrelax
