From 69bfd3c9ba12e99eabd826d507f1c11419e5606a Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Thu, 27 Jul 2006 18:02:27 +0200 Subject: [PATCH] re PR middle-end/28071 (A file that can not be compiled in reasonable time/space) PR rtl-optimization/28071 * global.c (greg_obstack): New obstack. (allocate_bb_info): Use it. (free_bb_info): Likewise. (modify_reg_pav): Likewise. From-SVN: r115776 --- gcc/ChangeLog | 8 ++++++++ gcc/global.c | 27 +++++++++------------------ 2 files changed, 17 insertions(+), 18 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index aedce7272dc..4ebe39ffb02 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2006-07-27 Jan Hubicka + + PR rtl-optimization/28071 + * global.c (greg_obstack): New obstack. + (allocate_bb_info): Use it. + (free_bb_info): Likewise. + (modify_reg_pav): Likewise. + 2006-07-27 Roger Sayle * builtins.c (fold_fixed_mathfn): When long and long long are the diff --git a/gcc/global.c b/gcc/global.c index b3c13ed065c..7bc9233c434 100644 --- a/gcc/global.c +++ b/gcc/global.c @@ -2047,6 +2047,7 @@ struct bb_info #define BB_INFO(BB) ((struct bb_info *) (BB)->aux) #define BB_INFO_BY_INDEX(N) BB_INFO (BASIC_BLOCK(N)) +static struct bitmap_obstack greg_obstack; /* The function allocates the info structures of each basic block. It also initialized LIVE_PAVIN and LIVE_PAVOUT as if all hard registers were partially available. */ @@ -2063,14 +2064,15 @@ allocate_bb_info (void) init = BITMAP_ALLOC (NULL); for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) bitmap_set_bit (init, i); + bitmap_obstack_initialize (&greg_obstack); FOR_EACH_BB (bb) { bb_info = bb->aux; - bb_info->earlyclobber = BITMAP_ALLOC (NULL); - bb_info->avloc = BITMAP_ALLOC (NULL); - bb_info->killed = BITMAP_ALLOC (NULL); - bb_info->live_pavin = BITMAP_ALLOC (NULL); - bb_info->live_pavout = BITMAP_ALLOC (NULL); + bb_info->earlyclobber = BITMAP_ALLOC (&greg_obstack); + bb_info->avloc = BITMAP_ALLOC (&greg_obstack); + bb_info->killed = BITMAP_ALLOC (&greg_obstack); + bb_info->live_pavin = BITMAP_ALLOC (&greg_obstack); + bb_info->live_pavout = BITMAP_ALLOC (&greg_obstack); bitmap_copy (bb_info->live_pavin, init); bitmap_copy (bb_info->live_pavout, init); } @@ -2082,18 +2084,7 @@ allocate_bb_info (void) static void free_bb_info (void) { - basic_block bb; - struct bb_info *bb_info; - - FOR_EACH_BB (bb) - { - bb_info = BB_INFO (bb); - BITMAP_FREE (bb_info->live_pavout); - BITMAP_FREE (bb_info->live_pavin); - BITMAP_FREE (bb_info->killed); - BITMAP_FREE (bb_info->avloc); - BITMAP_FREE (bb_info->earlyclobber); - } + bitmap_obstack_release (&greg_obstack); free_aux_for_blocks (); } @@ -2415,7 +2406,7 @@ modify_reg_pav (void) CLEAR_HARD_REG_SET (stack_hard_regs); for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) SET_HARD_REG_BIT(stack_hard_regs, i); - stack_regs = BITMAP_ALLOC (NULL); + stack_regs = BITMAP_ALLOC (&greg_obstack); for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++) { COPY_HARD_REG_SET (used, reg_class_contents[reg_preferred_class (i)]); -- 2.30.2