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re PR rtl-optimization/82338 (valgrind error in inherit_in_ebb)

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2017-09-29  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/82338
	* lra-constraints.c (inherit_in_ebb): Check usage_insns check.

From-SVN: r253299
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Vladimir Makarov 2017-09-29 17:15:24 +00:00 committed by Vladimir Makarov
parent e1e299f335
commit 851dac7c20
2 changed files with 6 additions and 0 deletions

5
gcc/ChangeLog

@ -1,3 +1,8 @@
2017-09-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/82338
* lra-constraints.c (inherit_in_ebb): Check usage_insns check.
2017-09-29 Alexander Monakov <amonakov@ispras.ru>
* genmodes.c (calc_wider_mode): Suppress qsort macro.

1
gcc/lra-constraints.c

@ -6219,6 +6219,7 @@ inherit_in_ebb (rtx_insn *head, rtx_insn *tail)
&& ((cheap = XEXP (cheap, 0)), true)
&& (regno = REGNO (cheap)) >= FIRST_PSEUDO_REGISTER
&& (hard_regno = reg_renumber[regno]) >= 0
&& usage_insns[regno].check == curr_usage_insns_check
/* If there are pending saves/restores, the
optimization is not worth. */
&& usage_insns[regno].calls_num == calls_num - 1