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| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/calls.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 27fd45a..3b263c7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-12-12 Jan Hubicka <jh@suse.cz> + Kai Tietz <kai.tietz@onevision.com> + + * calls.c (expand_call): Do not sibcall if + outgoing_reg_parm_stack_space does not match. + 2008-12-12 Anatoly Sokolov <aesok@post.ru> * config/avr/avr.c (avr_mcu_t): Add attiny87, attiny327, at90pwm81, diff --git a/gcc/calls.c b/gcc/calls.c index 03994d4..b94d298 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -2298,6 +2298,10 @@ expand_call (tree exp, rtx target, int ignore) It does not seem worth the effort since few optimizable sibling calls will return a structure. */ || structure_value_addr != NULL_RTX + /* If outgoing reg parm stack space changes, we can not do sibcall. */ + || (OUTGOING_REG_PARM_STACK_SPACE (funtype) + != OUTGOING_REG_PARM_STACK_SPACE (TREE_TYPE (current_function_decl))) + || (reg_parm_stack_space != REG_PARM_STACK_SPACE (fndecl)) /* Check whether the target is able to optimize the call into a sibcall. */ || !targetm.function_ok_for_sibcall (fndecl, exp) |