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r179174 - in /trunk/gcc: ChangeLog config.in co...


Author: davem
Date: Sun Sep 25 21:28:51 2011
New Revision: 179174

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179174
Log:
Add support for floating-point fused multiply-add on Sparc.

	* configure.ac: Add feature check to make sure the assembler
	supports the FMAF, HPC, and VIS 3.0 instructions found on
	Niagara-3 and later cpus.
	* configure: Rebuild.
	* config.in: Likewise.
	* config/sparc/sparc.opt: New option '-mfmaf'.
	* config/sparc/sparc.md: Add float fused multiply-add patterns.
	* config/sparc/sparc.h (AS_NIAGARA3_FLAG): New macro.
	(ASM_CPU64_DEFAULT_SPEC, ASM_CPU_SPEC): Use it, as needed.
	* config/sparc/sol2.h (ASM_CPU32_DEFAULT_SPEC,
	ASM_CPU64_DEFAULT_SPEC, ASM_CPU_SPEC): Likewise.
	* config/sparc/sparc.c (sparc_option_override): Turn MASK_FMAF on
	by default for Niagara-3 and later.  Turn it off if TARGET_FPU is
	disabled.
	(sparc_rtx_costs): Handle 'FMA'.
	* doc/invoke.texi: Document -mfmaf.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config.in
    trunk/gcc/config/sparc/sol2.h
    trunk/gcc/config/sparc/sparc.c
    trunk/gcc/config/sparc/sparc.h
    trunk/gcc/config/sparc/sparc.md
    trunk/gcc/config/sparc/sparc.opt
    trunk/gcc/configure
    trunk/gcc/configure.ac
    trunk/gcc/doc/invoke.texi


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