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re PR target/86547 (s390x: Maximum number of LRA assignment passes is achieved (30) when compiling a small inline assembler snippet)

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PR target/86547
	* lra-lives.c (remove_some_program_points_and_update_live_ranges):
        Check whether lra_live_max_point is 0 before dividing.

From-SVN: r263548
This commit is contained in:
Ilya Leoshkevich 2018-08-15 04:09:45 +00:00 committed by Jeff Law
parent 47f61a023f
commit 4720f4afba
2 changed files with 8 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,9 @@
2018-08-14 Ilya Leoshkevich <iii@linux.ibm.com>
PR target/86547
* lra-lives.c (remove_some_program_points_and_update_live_ranges):
Check whether lra_live_max_point is 0 before dividing.
2018-08-14 Martin Sebor <msebor@redhat.com>
PR tree-optimization/86650

3
gcc/lra-lives.c
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@ -1153,7 +1153,8 @@ remove_some_program_points_and_update_live_ranges (void)
n++;
if (lra_dump_file != NULL)
fprintf (lra_dump_file, "Compressing live ranges: from %d to %d - %d%%\n",
lra_live_max_point, n, 100 * n / lra_live_max_point);
lra_live_max_point, n,
lra_live_max_point ? 100 * n / lra_live_max_point : 100);
if (n < lra_live_max_point)
{
lra_live_max_point = n;