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c-common.c (shorten_compare): Do not shorten mixed DFP and non-DFP compares.

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2014-11-04  Richard Biener  <rguenther@suse.de>

	* c-common.c (shorten_compare): Do not shorten mixed
	DFP and non-DFP compares.

From-SVN: r217101
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Richard Biener 2014-11-04 20:46:52 +00:00 committed by Richard Biener
parent 673fade339
commit 6f45018142
2 changed files with 12 additions and 1 deletions
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5
gcc/c-family/ChangeLog
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@ -1,3 +1,8 @@
2014-11-04 Richard Biener <rguenther@suse.de>
* c-common.c (shorten_compare): Do not shorten mixed
DFP and non-DFP compares.
2014-11-01 Edward Smith-Rowland <3dw4rd@verizon.net>
* g++.dg/cpp1y/feat-cxx11.C: Commentary and rearrangement of tests.

8
gcc/c-family/c-common.c
View File

@ -4313,10 +4313,16 @@ shorten_compare (location_t loc, tree *op0_ptr, tree *op1_ptr,
/* If either arg is decimal float and the other is float, find the
proper common type to use for comparison. */
else if (real1 && real2
&& DECIMAL_FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (primop0)))
&& DECIMAL_FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (primop1))))
type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1));
/* If either arg is decimal float and the other is float, fail. */
else if (real1 && real2
&& (DECIMAL_FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (primop0)))
|| DECIMAL_FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (primop1)))))
type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1));
return 0;
else if (real1 && real2
&& (TYPE_PRECISION (TREE_TYPE (primop0))