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| author | Paolo Bonzini <bonzini@gnu.org> | 2009-01-20 13:24:25 +0000 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gcc.gnu.org> | 2009-01-20 13:24:25 +0000 |
| commit | 09efeca1a40c3bccdd200ca1bcba4199d89f6422 (patch) | |
| tree | 2acfe8d530f75855ee473340ea29ef01eb9183a8 /gcc/emit-rtl.c | |
| parent | cbb8dee3261887f74375baf1554e4c9a7ce71dbd (diff) | |
| download | gcc-09efeca1a40c3bccdd200ca1bcba4199d89f6422.zip gcc-09efeca1a40c3bccdd200ca1bcba4199d89f6422.tar.gz gcc-09efeca1a40c3bccdd200ca1bcba4199d89f6422.tar.bz2 | |
re PR target/38868 (r143152 breaks output routines in xplor-nih)
gcc:
2008-01-20 Paolo Bonzini <bonzini@gnu.org>
PR target/38868
* emit-rtl.c (adjust_address_1): Make sure memref is never
overwritten.
gcc/testsuite:
2008-01-20 Paolo Bonzini <bonzini@gnu.org>
PR target/38868
* gfortran.dg/pr38868.f: New testcase.
From-SVN: r143513
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 830ce1d..679e95e 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1,6 +1,6 @@ /* Emit RTL for the GCC expander. Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GCC. @@ -2035,6 +2035,11 @@ adjust_address_1 (rtx memref, enum machine_mode mode, HOST_WIDE_INT offset, new_rtx = change_address_1 (memref, mode, addr, validate); + /* If the address is a REG, change_address_1 rightfully returns memref, + but this would destroy memref's MEM_ATTRS. */ + if (new_rtx == memref && offset != 0) + new_rtx = copy_rtx (new_rtx); + /* Compute the new values of the memory attributes due to this adjustment. We add the offsets and update the alignment. */ if (memoffset) |