Uros Bizjak - [PATCH, middle-end]: Implement scalb optab. (original) (raw)

This is the mail archive of the gcc-patches@gcc.gnu.orgmailing list for the GCC project.

• From: "Uros Bizjak"
• To: "GCC Patches"
• Date: Mon, 19 Feb 2007 15:33:53 +0100
• Subject: [PATCH, middle-end]: Implement scalb optab.

Hello!

The patch itself is at http://gcc.gnu.org/ml/gcc-patches/2007-02/msg01527.html (but has wrong Subject: line).

2007-02-16 Kaveh R. Ghazi ghazi@caip.rutgers.edu Uros Bizjak ubizjak@gmail.com

   * optabs.h (enum optab_index): Add new OTI_scalb.
   (scalb_optab): Define corresponding macro.
   * optabs.c (init_optabs): Initialize scalb_optab.
   * genopinit.c (optabs): Implement scalb_optab using scalb?f3
   patterns.
   * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
   BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
   (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
   and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
   flag_unsafe_math_optimizations is set.


  * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
  to implement scalbf, scalb and scalbl built-ins as inline x87
  intrinsics.

testsuite/ChangeLog:2007-02-16 Kaveh R. Ghazi ghazi@caip.rutgers.edu * gcc.dg/builtins-34.c: Add scalb/scalbn/scalbln cases.Patch was regression tested on x86_64-pc-linux-gnu.OK for mainline (patch needs approval from the middle-end maintainer)?Uros.

• Follow-Ups:
  • Re: [PATCH, middle-end]: Implement scalb optab.
    * From: Richard Guenther