OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

re PR rtl-optimization/17723 (gcc segfaults with -O2) 

PR rtl-optimization/17723
	* cfgcleanup.c (merge_memattrs): Handle case when
	MEM_SIZE == NULL_RTX.

From-SVN: r89144
This commit is contained in:
Zdenek Dvorak 2004-10-16 18:42:31 +02:00 committed by Zdenek Dvorak
parent cd9333a726
commit 71068e3124
2 changed files with 18 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2004-10-16 Zdenek Dvorak <dvorakz@suse.cz>
PR rtl-optimization/17723
* cfgcleanup.c (merge_memattrs): Handle case when
MEM_SIZE == NULL_RTX.
2004-10-15 Andrew Pinski <pinskia@physics.uc.edu>
* toplev.c (dump_file_name): Change type to be const.

16
gcc/cfgcleanup.c
View File

@ -934,6 +934,8 @@ merge_memattrs (rtx x, rtx y)
MEM_ATTRS (x) = 0;
else
{
rtx mem_size;
if (MEM_ALIAS_SET (x) != MEM_ALIAS_SET (y))
{
set_mem_alias_set (x, 0);
@ -952,10 +954,16 @@ merge_memattrs (rtx x, rtx y)
set_mem_offset (x, 0);
set_mem_offset (y, 0);
}
set_mem_size (x, GEN_INT (MAX (INTVAL (MEM_SIZE (x)),
INTVAL (MEM_SIZE (y)))));
set_mem_size (y, MEM_SIZE (x));
if (!MEM_SIZE (x))
mem_size = NULL_RTX;
else if (!MEM_SIZE (y))
mem_size = NULL_RTX;
else
mem_size = GEN_INT (MAX (INTVAL (MEM_SIZE (x)),
INTVAL (MEM_SIZE (y))));
set_mem_size (x, mem_size);
set_mem_size (y, mem_size);
set_mem_align (x, MIN (MEM_ALIGN (x), MEM_ALIGN (y)));
set_mem_align (y, MEM_ALIGN (x));