From 430d0b16c6b4f3ae61f745f8c8acaf2e507b46e0 Mon Sep 17 00:00:00 2001 From: hubicka Date: Thu, 6 Oct 2016 13:45:45 +0000 Subject: [PATCH] * postreload.c (reload_cse_simplify): Skip also USE when detecting noop move. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240833 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 5 +++++ gcc/postreload.c | 3 ++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cf7505c41c1..3799db0fb83 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-10-06 Jan Hubicka + + * postreload.c (reload_cse_simplify): Skip also USE when detecting + noop move. + 2016-10-06 Richard Biener PR tree-optimization/77855 diff --git a/gcc/postreload.c b/gcc/postreload.c index 61c1ce8028e..4f3a526981e 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -153,7 +153,8 @@ reload_cse_simplify (rtx_insn *insn, rtx testreg) value = SET_DEST (part); } } - else if (GET_CODE (part) != CLOBBER) + else if (GET_CODE (part) != CLOBBER + && GET_CODE (part) != USE) break; } -- 2.11.4.GIT