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PR82228: Move ncopies calculation in vectorizable_live_operation

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This should have been after the early exit for non-vectorised statements.

2017-09-16  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	PR tree-optimization/82228
	* tree-vect-loop.c (vectorizable_live_operation): Move initialization
	of ncopies.

From-SVN: r252888
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Richard Sandiford 2017-09-16 20:39:01 +00:00 committed by Richard Sandiford
parent 4a8d26ab79
commit 78d459bbbb
2 changed files with 11 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2017-09-16 Richard Sandiford <richard.sandiford@linaro.org>
PR tree-optimization/82228
* tree-vect-loop.c (vectorizable_live_operation): Move initialization
of ncopies.
2017-09-16 Chung-Ju Wu <jasonwucj@gmail.com>
* common/config/nds32/nds32-common.c

10
gcc/tree-vect-loop.c
View File

@ -7029,11 +7029,6 @@ vectorizable_live_operation (gimple *stmt,
gcc_assert (STMT_VINFO_LIVE_P (stmt_info));
if (slp_node)
ncopies = 1;
else
ncopies = vect_get_num_copies (loop_vinfo, vectype);
if (STMT_VINFO_DEF_TYPE (stmt_info) == vect_reduction_def)
return false;
@ -7054,6 +7049,11 @@ vectorizable_live_operation (gimple *stmt,
return true;
}
if (slp_node)
ncopies = 1;
else
ncopies = vect_get_num_copies (loop_vinfo, vectype);
if (!vec_stmt)
/* No transformation required. */
return true;