re PR tree-optimization/53805 (combine_comparisons changes trapping behavior)
2012-08-02 Marc Glisse <marc.glisse@inria.fr> PR tree-optimization/53805 * gcc/fold-const.c (invert_tree_comparison): Invert ORDERED_EXPR and UNORDERED_EXPR even for trapping floating point. * gcc/testsuite/gcc.dg/fold-notunord.c: New testcase. From-SVN: r190100
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2012-08-02 Marc Glisse <marc.glisse@inria.fr>
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PR tree-optimization/53805
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* fold-const.c (invert_tree_comparison): Invert ORDERED_EXPR and
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UNORDERED_EXPR even for trapping floating point.
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2012-08-02 H.J. Lu <hongjiu.lu@intel.com>
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2012-08-02 H.J. Lu <hongjiu.lu@intel.com>
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PR middle-end/53321
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PR middle-end/53321
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@ -2094,12 +2094,14 @@ pedantic_non_lvalue_loc (location_t loc, tree x)
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/* Given a tree comparison code, return the code that is the logical inverse.
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/* Given a tree comparison code, return the code that is the logical inverse.
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It is generally not safe to do this for floating-point comparisons, except
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It is generally not safe to do this for floating-point comparisons, except
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for EQ_EXPR and NE_EXPR, so we return ERROR_MARK in this case. */
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for EQ_EXPR, NE_EXPR, ORDERED_EXPR and UNORDERED_EXPR, so we return
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ERROR_MARK in this case. */
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enum tree_code
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enum tree_code
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invert_tree_comparison (enum tree_code code, bool honor_nans)
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invert_tree_comparison (enum tree_code code, bool honor_nans)
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{
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{
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if (honor_nans && flag_trapping_math && code != EQ_EXPR && code != NE_EXPR)
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if (honor_nans && flag_trapping_math && code != EQ_EXPR && code != NE_EXPR
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&& code != ORDERED_EXPR && code != UNORDERED_EXPR)
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return ERROR_MARK;
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return ERROR_MARK;
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switch (code)
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switch (code)
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2012-08-02 Marc Glisse <marc.glisse@inria.fr>
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PR tree-optimization/53805
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* gcc.dg/fold-notunord.c: New testcase.
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2012-08-02 Mikael Morin <mikael@gcc.gnu.org>
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2012-08-02 Mikael Morin <mikael@gcc.gnu.org>
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PR fortran/48820
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PR fortran/48820
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/* { dg-do compile } */
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/* { dg-options "-O -ftrapping-math -fdump-tree-optimized" } */
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int f (double d)
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{
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return !__builtin_isnan (d);
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}
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/* { dg-final { scan-tree-dump " ord " "optimized" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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