summaryrefslogtreecommitdiff
path: root/gcc/local-alloc.c
diff options
context:
space:
mode:
authorlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>1997-11-02 21:19:36 +0000
committerlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>1997-11-02 21:19:36 +0000
commit0dbd1c7442aeabc3e63daf6f70f8fb136f0cf38e (patch)
tree46fe768360493f03f7282d07762e7b26c292aabd /gcc/local-alloc.c
parent638d2d6c66cb82345c84b92a46ebf9445c56204c (diff)
downloadgcc-0dbd1c7442aeabc3e63daf6f70f8fb136f0cf38e.tar.gz
Update mainline egcs to gcc2 snapshot 971021.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@16278 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/local-alloc.c')
-rw-r--r--gcc/local-alloc.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c
index ce7b4b9f405..ab7fc98f39d 100644
--- a/gcc/local-alloc.c
+++ b/gcc/local-alloc.c
@@ -59,8 +59,8 @@ Boston, MA 02111-1307, USA. */
register is used as a spill register. So we don't allocate such pseudos
here if their preferred class is likely to be used by spills. */
-#include <stdio.h>
#include "config.h"
+#include <stdio.h>
#include "rtl.h"
#include "flags.h"
#include "basic-block.h"
@@ -695,6 +695,9 @@ memref_referenced_p (memref, x)
return 1;
return memref_referenced_p (memref, SET_SRC (x));
+
+ default:
+ break;
}
fmt = GET_RTX_FORMAT (code);
@@ -758,13 +761,11 @@ optimize_reg_copy_1 (insn, dest, src)
int sregno = REGNO (src);
int dregno = REGNO (dest);
+ /* We don't want to mess with hard regs if register classes are small. */
if (sregno == dregno
-#ifdef SMALL_REGISTER_CLASSES
- /* We don't want to mess with hard regs if register classes are small. */
|| (SMALL_REGISTER_CLASSES
&& (sregno < FIRST_PSEUDO_REGISTER
|| dregno < FIRST_PSEUDO_REGISTER))
-#endif
/* We don't see all updates to SP if they are in an auto-inc memory
reference, so we must disallow this optimization on them. */
|| sregno == STACK_POINTER_REGNUM || dregno == STACK_POINTER_REGNUM)