From 09822562e4f196d209b1a5a59609ea9e9cdb892f Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Fri, 1 Feb 2019 08:07:35 +0000 Subject: [PATCH] re PR rtl-optimization/88593 (cleanup_cfg may make cached dominance info stale) 2019-02-01 Richard Biener PR rtl-optimization/88593 * mode-switching.c (optimize_mode_switching): Free dominators before calling cleanup_cfg. From-SVN: r268442 --- gcc/ChangeLog | 6 ++++++ gcc/mode-switching.c | 5 ++++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d4ee2a2754c..6b3437fe7b0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-02-01 Richard Biener + + PR rtl-optimization/88593 + * mode-switching.c (optimize_mode_switching): Free dominators before + calling cleanup_cfg. + 2019-02-01 Bin Cheng PR tree-optimization/88932 diff --git a/gcc/mode-switching.c b/gcc/mode-switching.c index ef6f6e1984c..2ff21a40081 100644 --- a/gcc/mode-switching.c +++ b/gcc/mode-switching.c @@ -856,7 +856,10 @@ optimize_mode_switching (void) commit_edge_insertions (); if (targetm.mode_switching.entry && targetm.mode_switching.exit) - cleanup_cfg (CLEANUP_NO_INSN_DEL); + { + free_dominance_info (CDI_DOMINATORS); + cleanup_cfg (CLEANUP_NO_INSN_DEL); + } else if (!need_commit && !emitted) return 0; -- 2.30.2