Hi!
The following patch on top of the
https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553801.html
patch fixes the gcc.target/arm/lto/pr96939_* test in certain ARM
configurations.
As said in the above mentioned patch, the generic code takes care of
saving/restoring TargetVariables or Target Save options, so this just
arranges for the generic code to save those instead of needing the
arm backend to do it manually.
Bootstrapped/regtested on armv7hl-linux-gnueabi, ok for trunk?
2020-09-13 Jakub Jelinek <ja...@redhat.com>
* config/arm/arm.opt (x_arm_arch_string, x_arm_cpu_string,
x_arm_tune_string): Remove TargetSave entries.
(march=, mcpu=, mtune=): Add Save keyword.
* config/arm/arm.c (arm_option_save): Remove.
(TARGET_OPTION_SAVE): Don't redefine.
(arm_option_restore): Don't restore x_arm_*_string here.
--- gcc/config/arm/arm.opt.jj 2020-01-12 11:54:36.273415521 +0100
+++ gcc/config/arm/arm.opt 2020-09-12 10:45:51.239935884 +0200
@@ -21,15 +21,6 @@
HeaderInclude
config/arm/arm-opts.h
-TargetSave
-const char *x_arm_arch_string
-
-TargetSave
-const char *x_arm_cpu_string
-
-TargetSave
-const char *x_arm_tune_string
-
Enum
Name(tls_type) Type(enum arm_tls_type)
TLS dialect to use:
@@ -82,7 +73,7 @@ mapcs-stack-check
Target Report Mask(APCS_STACK) Undocumented
march=
-Target RejectNegative Negative(march=) ToLower Joined Var(arm_arch_string)
+Target Save RejectNegative Negative(march=) ToLower Joined Var(arm_arch_string)
Specify the name of the target architecture.
; Other arm_arch values are loaded from arm-tables.opt
@@ -107,7 +98,7 @@ Target Report Mask(CALLER_INTERWORKING)
Thumb: Assume function pointers may go to non-Thumb aware code.
mcpu=
-Target RejectNegative Negative(mcpu=) ToLower Joined Var(arm_cpu_string)
+Target Save RejectNegative Negative(mcpu=) ToLower Joined Var(arm_cpu_string)
Specify the name of the target CPU.
mfloat-abi=
@@ -232,7 +223,7 @@ Target Report Mask(TPCS_LEAF_FRAME)
Thumb: Generate (leaf) stack frames even if not needed.
mtune=
-Target RejectNegative Negative(mtune=) ToLower Joined Var(arm_tune_string)
+Target Save RejectNegative Negative(mtune=) ToLower Joined Var(arm_tune_string)
Tune code for the given processor.
mprint-tune-info
--- gcc/config/arm/arm.c.jj 2020-09-11 17:44:28.643014087 +0200
+++ gcc/config/arm/arm.c 2020-09-12 10:48:09.951888347 +0200
@@ -247,8 +247,6 @@ static tree arm_build_builtin_va_list (v
static void arm_expand_builtin_va_start (tree, rtx);
static tree arm_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
static void arm_option_override (void);
-static void arm_option_save (struct cl_target_option *, struct gcc_options *,
- struct gcc_options *);
static void arm_option_restore (struct gcc_options *, struct gcc_options *,
struct cl_target_option *);
static void arm_override_options_after_change (void);
@@ -443,9 +441,6 @@ static const struct attribute_spec arm_a
#undef TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE
#define TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE arm_override_options_after_change
-#undef TARGET_OPTION_SAVE
-#define TARGET_OPTION_SAVE arm_option_save
-
#undef TARGET_OPTION_RESTORE
#define TARGET_OPTION_RESTORE arm_option_restore
@@ -3042,24 +3037,11 @@ arm_override_options_after_change (void)
arm_override_options_after_change_1 (&global_options, &global_options_set);
}
-/* Implement TARGET_OPTION_SAVE. */
-static void
-arm_option_save (struct cl_target_option *ptr, struct gcc_options *opts,
- struct gcc_options */* opts_set */)
-{
- ptr->x_arm_arch_string = opts->x_arm_arch_string;
- ptr->x_arm_cpu_string = opts->x_arm_cpu_string;
- ptr->x_arm_tune_string = opts->x_arm_tune_string;
-}
-
/* Implement TARGET_OPTION_RESTORE. */
static void
arm_option_restore (struct gcc_options *opts, struct gcc_options *opts_set,
struct cl_target_option *ptr)
{
- opts->x_arm_arch_string = ptr->x_arm_arch_string;
- opts->x_arm_cpu_string = ptr->x_arm_cpu_string;
- opts->x_arm_tune_string = ptr->x_arm_tune_string;
arm_configure_build_target (&arm_active_target, ptr, opts_set, false);
}
Jakub
