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| author | Tom de Vries <tom@codesourcery.com> | 2014-05-28 21:50:28 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2014-05-28 21:50:28 +0000 |
| commit | ea0b381f6e6b7a7261f028007453a8fe99587aa0 (patch) | |
| tree | a85218b1d43ae3380e45d9f5caad31d59415b71d /gcc/lra-assigns.c | |
| parent | 73f793e3bb4e0a2bd04536f8bbc861c34cfec945 (diff) | |
| download | gcc-ea0b381f6e6b7a7261f028007453a8fe99587aa0.zip gcc-ea0b381f6e6b7a7261f028007453a8fe99587aa0.tar.gz gcc-ea0b381f6e6b7a7261f028007453a8fe99587aa0.tar.bz2 | |
revert: lra-int.h (struct lra_reg): Add field actual_call_used_reg_set.
2014-05-28 Tom de Vries <tom@codesourcery.com>
Revert:
2014-05-28 Tom de Vries <tom@codesourcery.com>
* lra-int.h (struct lra_reg): Add field actual_call_used_reg_set.
* lra.c (initialize_lra_reg_info_element): Add init of
actual_call_used_reg_set field.
(lra): Call lra_create_live_ranges before lra_inheritance for
-fuse-caller-save.
* lra-assigns.c (lra_assign): Allow call_used_regs to cross calls for
-fuse-caller-save.
* lra-constraints.c (need_for_call_save_p): Use actual_call_used_reg_set
instead of call_used_reg_set for -fuse-caller-save.
* lra-lives.c (process_bb_lives): Calculate actual_call_used_reg_set.
From-SVN: r211033
Diffstat (limited to 'gcc/lra-assigns.c')
| -rw-r--r-- | gcc/lra-assigns.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/gcc/lra-assigns.c b/gcc/lra-assigns.c index 34b4a11..f7bb86b 100644 --- a/gcc/lra-assigns.c +++ b/gcc/lra-assigns.c @@ -1447,7 +1447,6 @@ lra_assign (void) bitmap_head insns_to_process; bool no_spills_p; int max_regno = max_reg_num (); - unsigned int call_used_reg_crosses_call = 0; timevar_push (TV_LRA_ASSIGN); init_lives (); @@ -1460,22 +1459,14 @@ lra_assign (void) bitmap_initialize (&all_spilled_pseudos, ®_obstack); create_live_range_start_chains (); setup_live_pseudos_and_spill_after_risky_transforms (&all_spilled_pseudos); +#ifdef ENABLE_CHECKING for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++) if (lra_reg_info[i].nrefs != 0 && reg_renumber[i] >= 0 && lra_reg_info[i].call_p && overlaps_hard_reg_set_p (call_used_reg_set, PSEUDO_REGNO_MODE (i), reg_renumber[i])) - { - if (!flag_use_caller_save) - gcc_unreachable (); - call_used_reg_crosses_call++; - } - if (lra_dump_file - && call_used_reg_crosses_call > 0) - fprintf (lra_dump_file, - "Found %u pseudo(s) with a call used reg crossing a call.\n" - "Allowing due to -fuse-caller-save\n", - call_used_reg_crosses_call); + gcc_unreachable (); +#endif /* Setup insns to process on the next constraint pass. */ bitmap_initialize (&changed_pseudo_bitmap, ®_obstack); init_live_reload_and_inheritance_pseudos (); |