diff options
| author | ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-26 09:58:28 +0000 |
|---|---|---|
| committer | ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-26 09:58:28 +0000 |
| commit | c62f411b3c564e3bc2e231ec8fb8072c23a0a785 (patch) | |
| tree | 2eccc3d73bf8aaf67a16ef370aea53376e5e186a /gcc/calls.c | |
| parent | e2225bd419ce30e32adc080be8cfe407d649fc95 (diff) | |
| download | gcc-c62f411b3c564e3bc2e231ec8fb8072c23a0a785.tar.gz | |
[calls.c] PR rtl-optimization/67226: Take into account pretend_args_size when checking stack offsets for sibcall optimisation
2015-11-26 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Bernd Schmidt <bschmidt@redhat.com>
PR rtl-optimization/67226
* calls.c (store_one_arg): Take into account
crtl->args.pretend_args_size when checking for overlap between
arg->value and argblock + arg->locate.offset during sibcall
optimization.
* gcc.c-torture/execute/pr67226.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230929 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index b56556a9d0a..6cbe01970c1 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -4939,6 +4939,13 @@ store_one_arg (struct arg_data *arg, rtx argblock, int flags, if (XEXP (x, 0) != crtl->args.internal_arg_pointer) i = INTVAL (XEXP (XEXP (x, 0), 1)); + /* arg.locate doesn't contain the pretend_args_size offset, + it's part of argblock. Ensure we don't count it in I. */ + if (STACK_GROWS_DOWNWARD) + i -= crtl->args.pretend_args_size; + else + i += crtl->args.pretend_args_size; + /* expand_call should ensure this. */ gcc_assert (!arg->locate.offset.var && arg->locate.size.var == 0 |