diff options
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 47 |
1 files changed, 25 insertions, 22 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index f6bc970b71b..a75e3b36569 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1,6 +1,6 @@ /* Convert function calls to rtl insns, for GNU C compiler. Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GCC. @@ -2705,26 +2705,28 @@ expand_call (tree exp, rtx target, int ignore) but we do preallocate space here if they want that. */ for (i = 0; i < num_actuals; i++) - if (args[i].reg == 0 || args[i].pass_on_stack) - { - rtx before_arg = get_last_insn (); - - if (store_one_arg (&args[i], argblock, flags, - adjusted_args_size.var != 0, - reg_parm_stack_space) - || (pass == 0 - && check_sibcall_argument_overlap (before_arg, - &args[i], 1))) - sibcall_failure = 1; - - if (flags & ECF_CONST - && args[i].stack - && args[i].value == args[i].stack) - call_fusage = gen_rtx_EXPR_LIST (VOIDmode, - gen_rtx_USE (VOIDmode, - args[i].value), - call_fusage); - } + { + if (args[i].reg == 0 || args[i].pass_on_stack) + { + rtx before_arg = get_last_insn (); + + if (store_one_arg (&args[i], argblock, flags, + adjusted_args_size.var != 0, + reg_parm_stack_space) + || (pass == 0 + && check_sibcall_argument_overlap (before_arg, + &args[i], 1))) + sibcall_failure = 1; + } + + if (((flags & ECF_CONST) + || ((flags & ECF_PURE) && ACCUMULATE_OUTGOING_ARGS)) + && args[i].stack) + call_fusage = gen_rtx_EXPR_LIST (VOIDmode, + gen_rtx_USE (VOIDmode, + args[i].stack), + call_fusage); + } /* If we have a parm that is passed in registers but not in memory and whose alignment does not permit a direct copy into registers, @@ -3672,7 +3674,8 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value, NO_DEFER_POP; - if (flags & ECF_CONST) + if ((flags & ECF_CONST) + || ((flags & ECF_PURE) && ACCUMULATE_OUTGOING_ARGS)) { rtx use; |