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| author | Aldy Hernandez <aldyh@redhat.com> | 2013-02-19 00:04:49 +0000 |
|---|---|---|
| committer | Aldy Hernandez <aldyh@gcc.gnu.org> | 2013-02-19 00:04:49 +0000 |
| commit | 135204ddd3bf1f3885db364c109bf977f5067e8f (patch) | |
| tree | 7a29bd18e10dbd4f5b64765ae5b8f07a5bda81db /gcc/optabs.c | |
| parent | f6007d99f88822a517d15c6e56dcbfa66e8b5dec (diff) | |
| download | gcc-135204ddd3bf1f3885db364c109bf977f5067e8f.zip gcc-135204ddd3bf1f3885db364c109bf977f5067e8f.tar.gz gcc-135204ddd3bf1f3885db364c109bf977f5067e8f.tar.bz2 | |
re PR target/52555 (ICE unrecognizable insn with -ffast-math and __attribute__((optimize(xx))))
PR target/52555
* genopinit.c (raw_optab_handler): Use this_fn_optabs.
(swap_optab_enable): Same.
(init_all_optabs): Use argument instead of global.
* tree.h (struct tree_optimization_option): New field
target_optabs.
* expr.h (init_all_optabs): Add argument to prototype.
(TREE_OPTIMIZATION_OPTABS): New.
(save_optabs_if_changed): Protoize.
* optabs.h: Declare this_fn_optabs.
* optabs.c (save_optabs_if_changed): New.
Declare this_fn_optabs.
(init_optabs): Add argument to init_all_optabs() call.
* function.c (invoke_set_current_function_hook): Handle per
function optabs.
* function.h (struct function): New field optabs.
* config/mips/mips.c (mips_set_mips16_mode): Handle when
optimization_current_node has changed.
* target-globals.h (save_target_globals_default_opts): Protoize.
* target-globals.c (save_target_globals_default_opts): New.
c-family/
* c-common.c (handle_optimize_attribute): Call
save_optabs_if_changed.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r196129
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index c1dacf4..c5778d1 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -44,6 +44,7 @@ along with GCC; see the file COPYING3. If not see struct target_optabs default_target_optabs; struct target_libfuncs default_target_libfuncs; +struct target_optabs *this_fn_optabs = &default_target_optabs; #if SWITCHABLE_TARGET struct target_optabs *this_target_optabs = &default_target_optabs; struct target_libfuncs *this_target_libfuncs = &default_target_libfuncs; @@ -6150,7 +6151,7 @@ init_optabs (void) libfunc_hash = htab_create_ggc (10, hash_libfunc, eq_libfunc, NULL); /* Fill in the optabs with the insns we support. */ - init_all_optabs (); + init_all_optabs (this_fn_optabs); /* The ffs function operates on `int'. Fall back on it if we do not have a libgcc2 function for that width. */ @@ -6207,6 +6208,38 @@ init_optabs (void) targetm.init_libfuncs (); } +/* Recompute the optabs and save them if they have changed. */ + +void +save_optabs_if_changed (tree fndecl) +{ + /* ?? If this fails, we should temporarily restore the default + target first (set_cfun (NULL) ??), do the rest of this function, + and then restore it. */ + gcc_assert (this_target_optabs == &default_target_optabs); + + struct target_optabs *tmp_optabs = (struct target_optabs *) + ggc_alloc_atomic (sizeof (struct target_optabs)); + tree optnode = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (fndecl); + + /* Generate a new set of optabs into tmp_optabs. */ + init_all_optabs (tmp_optabs); + + /* If the optabs changed, record it. */ + if (memcmp (tmp_optabs, this_target_optabs, sizeof (struct target_optabs))) + { + if (TREE_OPTIMIZATION_OPTABS (optnode)) + ggc_free (TREE_OPTIMIZATION_OPTABS (optnode)); + + TREE_OPTIMIZATION_OPTABS (optnode) = (unsigned char *) tmp_optabs; + } + else + { + TREE_OPTIMIZATION_OPTABS (optnode) = NULL; + ggc_free (tmp_optabs); + } +} + /* A helper function for init_sync_libfuncs. Using the basename BASE, install libfuncs into TAB for BASE_N for 1 <= N <= MAX. */ |