diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2012-01-05 20:47:16 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2012-01-05 20:47:16 +0000 |
| commit | a9aee99f4773f933034ad78a8a9b25411ebb80a4 (patch) | |
| tree | 9bec1abf57ab342191f47a5f4dedef16189d8eb7 /gcc/calls.c | |
| parent | 89aa60772e65916409426c7844d16795ee495b6e (diff) | |
PR debug/51762
* calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
note when !ACCUMULATE_OUTGOING_ARGS.
* gcc.dg/pr51762.c: New test.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@182924 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index c8d0b849985..943ab093c0f 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1,7 +1,7 @@ /* 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, 2008, 2009, 2010, - 2011 Free Software Foundation, Inc. + 2011, 2012 Free Software Foundation, Inc. This file is part of GCC. @@ -445,6 +445,11 @@ emit_call_1 (rtx funexp, tree fntree ATTRIBUTE_UNUSED, tree fndecl ATTRIBUTE_UNU if (SUPPORTS_STACK_ALIGNMENT) crtl->need_drap = true; } + /* For noreturn calls when not accumulating outgoing args force + REG_ARGS_SIZE note to prevent crossjumping of calls with different + args sizes. */ + else if (!ACCUMULATE_OUTGOING_ARGS && (ecf_flags & ECF_NORETURN) != 0) + add_reg_note (call_insn, REG_ARGS_SIZE, GEN_INT (stack_pointer_delta)); if (!ACCUMULATE_OUTGOING_ARGS) { |