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re PR tree-optimization/84777 (-Os inhibits all vectorization)

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2018-03-12  Richard Biener  <rguenther@suse.de>

	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
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Richard Biener 2018-03-12 08:45:54 +00:00 committed by Richard Biener
parent 823835a99d
commit b79fa2f609
2 changed files with 8 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,9 @@
2018-03-12 Richard Biener <rguenther@suse.de>
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 <jasonwucj@gmail.com>
* config/nds32/nds32.c (nds32_md_asm_adjust): New function.

3
gcc/tree-ssa-loop-ch.c
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@ -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,