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

ssa-ccp.c (ssa_ccp_substitute_constants): Don't crash if def is NULL. 

* ssa-ccp.c (ssa_ccp_substitute_constants): Don't crash if def
	is NULL.

	* gcc.dg/20020304-1.c: New test.

From-SVN: r50313
This commit is contained in:
Jakub Jelinek 2002-03-05 12:04:38 +01:00 committed by Jakub Jelinek
parent 4f8af10714
commit 150c467b71
3 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2002-03-05 Jakub Jelinek <jakub@redhat.com>
* ssa-ccp.c (ssa_ccp_substitute_constants): Don't crash if def
is NULL.
2002-03-05 Richard Henderson <rth@redhat.com>
* config/rs6000/rs6000.h (TOTAL_ALTIVEC_REGS): Fix off-by-one error.

8
gcc/ssa-ccp.c
View File

@ -856,10 +856,14 @@ ssa_ccp_substitute_constants ()
{
if (values[i].lattice_val == CONSTANT)
{
rtx def = VARRAY_RTX (ssa_definition, i);
rtx set = single_set (def);
rtx def = VARRAY_RTX (ssa_definition, i), set;
struct df_link *curruse;
/* Definition might have been deleted already. */
if (! def)
continue;
set = single_set (def);
if (! set)
continue;

4
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2002-03-05 Jakub Jelinek <jakub@redhat.com>
* gcc.dg/20020304-1.c: New test.
2002-03-04 Zack Weinberg <zack@codesourcery.com>
* gcc.c-torture/compile/20020304-1.c: New test case