From b79fa2f609c70a70125c979e363176002d1f9acd Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Mon, 12 Mar 2018 08:45:54 +0000 Subject: [PATCH] re PR tree-optimization/84777 (-Os inhibits all vectorization) 2018-03-12 Richard Biener PR tree-optimization/84777 * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For force-vectorize loops ignore whether we are optimizing for size. From-SVN: r258444 --- gcc/ChangeLog | 6 ++++++ gcc/tree-ssa-loop-ch.c | 3 ++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 59aa9f388e2..bc08bae91fe 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-03-12 Richard Biener + + PR tree-optimization/84777 + * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For + force-vectorize loops ignore whether we are optimizing for size. + 2018-03-12 Chung-Ju Wu * config/nds32/nds32.c (nds32_md_asm_adjust): New function. diff --git a/gcc/tree-ssa-loop-ch.c b/gcc/tree-ssa-loop-ch.c index b2dee48e5d7..488999dd8ce 100644 --- a/gcc/tree-ssa-loop-ch.c +++ b/gcc/tree-ssa-loop-ch.c @@ -57,7 +57,8 @@ should_duplicate_loop_header_p (basic_block header, struct loop *loop, be true, since quite often it is possible to verify that the condition is satisfied in the first iteration and therefore to eliminate it. Jump threading handles these cases now. */ - if (optimize_loop_for_size_p (loop)) + if (optimize_loop_for_size_p (loop) + && !loop->force_vectorize) { if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, -- 2.30.2