| commit | 198d9bbee87d11cad4547476146f84d5495c0260 | |
| author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 9 Feb 2005 21:56:35 +0000 (9 21:56 +0000) | ||
| committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 9 Feb 2005 21:56:35 +0000 (9 21:56 +0000) | ||
| tree | b165cf0028ec1a832fc59f34df44d639c9c318a2 | treesnapshot (tar.gz zip) |
| parent | d1001cc93ca3fc8a93e1048911c52dab4a56d6da | commitdiff |
* fold-const.c (fold_strip_sign_ops): New function to simplify a
floating point expression ignoring the sign of the result.
(fold) <ABS_EXPR>: Use it to simplify fabs(x).
(fold) <MULT_EXPR>: Use it to simplify x*x.
* tree.h (fold_strip_sign_ops): Prototype here.
* builtins.c (fold_builtin_copysign): Take an additional FNDECL
argument. Use fold_strip_sign_ops to simplify the first argument.
(fold_builtin_pow): Use fold_strip_sign_ops to simplify the
first argument when the second argument is an even integer
constant, but only with -funsafe_math_optimizations.
(fold_builtin_1): Update call to fold_builtin_copysign.
* gcc.dg/builtins-48.c: New test case.
* gcc.dg/builtins-49.c: New test case.
* gcc.dg/builtins-50.c: New test case.
* gcc.dg/builtins-51.c: New test case.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@94779 138bc75d-0d04-0410-961f-82ee72b054a4
floating point expression ignoring the sign of the result.
(fold) <ABS_EXPR>: Use it to simplify fabs(x).
(fold) <MULT_EXPR>: Use it to simplify x*x.
* tree.h (fold_strip_sign_ops): Prototype here.
* builtins.c (fold_builtin_copysign): Take an additional FNDECL
argument. Use fold_strip_sign_ops to simplify the first argument.
(fold_builtin_pow): Use fold_strip_sign_ops to simplify the
first argument when the second argument is an even integer
constant, but only with -funsafe_math_optimizations.
(fold_builtin_1): Update call to fold_builtin_copysign.
* gcc.dg/builtins-48.c: New test case.
* gcc.dg/builtins-49.c: New test case.
* gcc.dg/builtins-50.c: New test case.
* gcc.dg/builtins-51.c: New test case.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@94779 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/builtins.c | diffblobblamehistory | |
| gcc/fold-const.c | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/builtins-48.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/builtins-49.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/builtins-50.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/builtins-51.c | [new file with mode: 0644] | blob |
| gcc/tree.h | diffblobblamehistory |