From 0e456625276c293c62302c6c4d38d995e2b59880 Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Wed, 17 Dec 2008 13:03:04 +0100 Subject: [PATCH] calls.c (expand_call): Do not sibcall if outgoing_reg_parm_stack_space does not match. * calls.c (expand_call): Do not sibcall if outgoing_reg_parm_stack_space does not match. Co-Authored-By: Kai Tietz From-SVN: r142792 --- gcc/ChangeLog | 6 ++++++ gcc/calls.c | 4 ++++ 2 files changed, 10 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 27fd45a409d..3b263c7df1d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-12-12 Jan Hubicka + Kai Tietz + + * calls.c (expand_call): Do not sibcall if + outgoing_reg_parm_stack_space does not match. + 2008-12-12 Anatoly Sokolov * config/avr/avr.c (avr_mcu_t): Add attiny87, attiny327, at90pwm81, diff --git a/gcc/calls.c b/gcc/calls.c index 03994d4ecf5..b94d29800a8 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) -- 2.30.2