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* loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.

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From-SVN: r22955
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David Edelsohn 1998-10-09 08:42:34 +00:00 committed by David Edelsohn
parent 3fe88ebf0d
commit 400d63220a
2 changed files with 15 additions and 2 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
* loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
* emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.

13
gcc/loop.c
View File

@ -8054,12 +8054,21 @@ insert_bct (loop_start, loop_end)
at compile time. In this case we generate run_time calculation
of the number of iterations. */
if (loop_iteration_var == 0)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"insert_bct %d: BCT Runtime Instrumentation failed: no loop iteration variable found\n",
loop_num);
return;
}
if (GET_MODE_CLASS (GET_MODE (loop_iteration_var)) != MODE_INT
|| GET_MODE_SIZE (GET_MODE (loop_iteration_var)) != UNITS_PER_WORD)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"insert_bct %d: BCT Instrumentation failed: loop variable not integer\n",
"insert_bct %d: BCT Runtime Instrumentation failed: loop variable not integer\n",
loop_num);
return;
}
@ -8069,7 +8078,7 @@ insert_bct (loop_start, loop_end)
{
if (loop_dump_stream)
fprintf (loop_dump_stream,
"insert_bct %d: runtime bounds with != comparison\n",
"insert_bct %d: BCT Runtime Instrumentation failed: runtime bounds with != comparison\n",
loop_num);
return;
}