diff options
| author | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-02 00:38:21 +0000 |
|---|---|---|
| committer | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-02 00:38:21 +0000 |
| commit | 8ef3d190e91c016d268433ab18b8d661fe623189 (patch) | |
| tree | 3a591d5196a5a6c1c2ecdc330d7d323242f600da /gcc/rtlanal.c | |
| parent | 09b1890ec92d55ccb2e9c91d72164a1f0356330c (diff) | |
| download | gcc-8ef3d190e91c016d268433ab18b8d661fe623189.tar.gz | |
gcc:
PR middle-end/30311
* caller-save.c (add_stored_regs): Only handle SUBREGs if inner
REG is a hard register. Do not modify REG before calling
subreg_nregs.
* rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
multiple of the size of YMODE for certain lowpart cases.
gcc/testsuite:
* gcc.c-torture/compile/pr30311.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120329 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index bc2da3c7e2a..2d156638b6d 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -1,6 +1,6 @@ /* Analyze RTL for GNU compiler. Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. This file is part of GCC. @@ -3057,6 +3057,13 @@ subreg_get_info (unsigned int xregno, enum machine_mode xmode, { info->representable_p = true; rknown = true; + + if (offset == 0 || nregs_xmode == nregs_ymode) + { + info->offset = 0; + info->nregs = nregs_ymode; + return; + } } /* This should always pass, otherwise we don't know how to verify |