From a434c00b2d9a540152ea149244fa8df97f64def4 Mon Sep 17 00:00:00 2001 From: marxin Date: Thu, 14 Feb 2019 14:25:48 +0100 Subject: [PATCH] Backport r268873 gcc/ChangeLog: 2019-02-14 Martin Liska PR rtl-optimization/89242 * dce.c (delete_unmarked_insns): Call free_dominance_info we process a transformation. gcc/testsuite/ChangeLog: 2019-02-14 Martin Liska PR rtl-optimization/89242 * g++.dg/pr89242.C: New test. --- gcc/dce.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/gcc/dce.c b/gcc/dce.c index 2ef4dd7bd3b..ce2edc43efb 100644 --- a/gcc/dce.c +++ b/gcc/dce.c @@ -642,7 +642,10 @@ delete_unmarked_insns (void) /* Deleted a pure or const call. */ if (must_clean) - delete_unreachable_blocks (); + { + delete_unreachable_blocks (); + free_dominance_info (CDI_DOMINATORS); + } } -- 2.20.1