------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-15
20:46 -------
Applying the following patch causes the ICE to be seen earlier:
Index: tree-ssa-loop-im.c
===============================================================
====
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-loop-im.c,v
retrieving revision 2.36
diff -u -p -r2.36 tree-ssa-loop-im.c
--- tree-ssa-loop-im.c 11 Apr 2005 20:17:38 -0000 2.36
+++ tree-ssa-loop-im.c 15 Apr 2005 20:45:58 -0000
@@ -38,6 +38,7 @@ Software Foundation, 59 Temple Place - S
#include "tree-pass.h"
#include "flags.h"
#include "real.h"
+#include "ggc.h"
/* TODO: Support for predicated code motion. I.e.
@@ -622,9 +623,10 @@ determine_invariantness_stmt (struct dom
The multiply stmt is not invariant, so update iterator
and avoid rescanning. */
bsi_replace (&bsi, stmt1, true);
- get_stmt_operands (stmt1); /* Should not be necessary. */
bsi_insert_after (&bsi, stmt2, BSI_NEW_STMT);
SSA_NAME_DEF_STMT (lhs) = stmt2;
+ ggc_collect ();
+ verify_ssa (true);
/* Continue processing with invariant reciprocal statment. */
stmt = stmt1;
I think we are missing an update use.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21048
