From 6f450181421ef6e8c2e489394d29f2828f96d38f Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Tue, 4 Nov 2014 20:46:52 +0000 Subject: [PATCH] c-common.c (shorten_compare): Do not shorten mixed DFP and non-DFP compares. 2014-11-04 Richard Biener * c-common.c (shorten_compare): Do not shorten mixed DFP and non-DFP compares. From-SVN: r217101 --- gcc/c-family/ChangeLog | 5 +++++ gcc/c-family/c-common.c | 8 +++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog index a28ef60b984..861ba073f35 100644 --- a/gcc/c-family/ChangeLog +++ b/gcc/c-family/ChangeLog @@ -1,3 +1,8 @@ +2014-11-04 Richard Biener + + * 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. diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 03137febc08..532923cb798 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -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)) -- 2.30.2