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[Bug rtl-optimization/79450] [5/6/7 Regression] wrong code with loop at -O1
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 13 Feb 2017 15:40:31 +0000
- Subject: [Bug rtl-optimization/79450] [5/6/7 Regression] wrong code with loop at -O1
- Auto-submitted: auto-generated
- References: <bug-79450-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79450
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Feb 13 15:39:59 2017
New Revision: 245390
URL: https://gcc.gnu.org/viewcvs?rev=245390&root=gcc&view=rev
Log:
PR rtl-optimization/79388
PR rtl-optimization/79450
* combine.c (distribute_notes): When removing TEM_INSN for which
corresponding dest has last value recorded, invalidate that last
value.
* gcc.c-torture/execute/pr79388.c: New test.
* gcc.c-torture/execute/pr79450.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr79388.c
trunk/gcc/testsuite/gcc.c-torture/execute/pr79450.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
trunk/gcc/testsuite/ChangeLog