* c.opt (Wdouble-promotion): New.

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

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+2010-09-05  Mark Mitchell  <mark@codesourcery.com>
+
+       * doc/invoke.texi: Document -Wdouble-promotion.
+       * c-typeck.c (convert_arguments): Check for implicit conversions
+       from float to double.
+       (do_warn_double_promotion): New function.
+       (build_conditional_expr): Use it.
+       (build_binary_op): Likewise.
+
 2010-09-05  Richard Guenther  <rguenther@suse.de>
 
        PR tree-optimization/45535