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re PR target/92758 (r278833 breaks gcc.target/powerpc/fold-vec-splat-floatdouble.c)

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2019-12-03  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92758
	* tree-ssa-forwprop.c (simplify_vector_constructor): Restore
	operation on uniform vectors.

From-SVN: r278938
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Richard Biener 2019-12-03 14:47:24 +00:00 committed by Richard Biener
parent d8f0024b57
commit 577f4a0e5e
2 changed files with 7 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2019-12-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/92758
* tree-ssa-forwprop.c (simplify_vector_constructor): Restore
operation on uniform vectors.
2019-12-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/92645

3
gcc/tree-ssa-forwprop.c
View File

@ -2043,8 +2043,7 @@ simplify_vector_constructor (gimple_stmt_iterator *gsi)
gcc_checking_assert (TREE_CODE (op) == CONSTRUCTOR
&& TREE_CODE (type) == VECTOR_TYPE);
if (!TYPE_VECTOR_SUBPARTS (type).is_constant (&nelts)
|| uniform_vector_p (op))
if (!TYPE_VECTOR_SUBPARTS (type).is_constant (&nelts))
return false;
elem_type = TREE_TYPE (type);
elem_size = TREE_INT_CST_LOW (TYPE_SIZE (elem_type));