From: vries Date: Fri, 20 Jun 2014 08:01:41 +0000 (+0000) Subject: Use function_used_regs variable in collect_fn_hard_reg_usage X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a9909cdd1e592aa802bd2226ceb13ecb495353fb;p=thirdparty%2Fgcc.git Use function_used_regs variable in collect_fn_hard_reg_usage 2014-06-20 Tom de Vries * final.c (collect_fn_hard_reg_usage): Add and use variable function_used_regs. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211839 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 387d9dcfdb27..e83b0ce18f35 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2014-06-20 Tom de Vries + + * final.c (collect_fn_hard_reg_usage): Add and use variable + function_used_regs. + 2014-06-20 Jan Hubicka * cgraph.h (struct symtab_node): Add field in_init_priority_hash diff --git a/gcc/final.c b/gcc/final.c index 4f0807334163..e39930d4207f 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -4760,13 +4760,13 @@ collect_fn_hard_reg_usage (void) int i; #endif struct cgraph_rtl_info *node; + HARD_REG_SET function_used_regs; /* ??? To be removed when all the ports have been fixed. */ if (!targetm.call_fusage_contains_non_callee_clobbers) return; - node = cgraph_rtl_info (current_function_decl); - gcc_assert (node != NULL); + CLEAR_HARD_REG_SET (function_used_regs); for (insn = get_insns (); insn != NULL_RTX; insn = next_insn (insn)) { @@ -4779,25 +4779,26 @@ collect_fn_hard_reg_usage (void) if (CALL_P (insn) && !get_call_reg_set_usage (insn, &insn_used_regs, call_used_reg_set)) - { - CLEAR_HARD_REG_SET (node->function_used_regs); - return; - } + return; - IOR_HARD_REG_SET (node->function_used_regs, insn_used_regs); + IOR_HARD_REG_SET (function_used_regs, insn_used_regs); } /* Be conservative - mark fixed and global registers as used. */ - IOR_HARD_REG_SET (node->function_used_regs, fixed_reg_set); + IOR_HARD_REG_SET (function_used_regs, fixed_reg_set); #ifdef STACK_REGS /* Handle STACK_REGS conservatively, since the df-framework does not provide accurate information for them. */ for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) - SET_HARD_REG_BIT (node->function_used_regs, i); + SET_HARD_REG_BIT (function_used_regs, i); #endif + node = cgraph_rtl_info (current_function_decl); + gcc_assert (node != NULL); + + COPY_HARD_REG_SET (node->function_used_regs, function_used_regs); node->function_used_regs_valid = 1; }