[llvm-commits] CVS: llvm/lib/Target/X86/X86.td

[Chris Lattner]

On May 4, 2007, at 1:39 PM, Bill Wendling wrote:
> Add an "implies" field to features. This indicates that, if the  
> current
> feature is set, then the features in the implied list should be set  
> also.
> The opposite is also enforced: if a feature in the implied list  
> isn't set,
> then the feature that owns that implies list shouldn't be set either.

Looks good.  Does 3dnowa imply 3dnow?

Does 64-bit imply sse2 or sse3?

-Chris

>
> ---
> Diffs of the changes:  (+21 -17)
>
>  X86.td |   38 +++++++++++++++++++++-----------------
>  1 files changed, 21 insertions(+), 17 deletions(-)
>
>
> Index: llvm/lib/Target/X86/X86.td
> diff -u llvm/lib/Target/X86/X86.td:1.31 llvm/lib/Target/X86/X86.td: 
> 1.32
> --- llvm/lib/Target/X86/X86.td:1.31	Wed Apr 25 16:31:48 2007
> +++ llvm/lib/Target/X86/X86.td	Fri May  4 15:38:40 2007
> @@ -18,24 +18,28 @@
>
>  // 
> ===------------------------------------------------------------------- 
> ---===//
>  // X86 Subtarget features.
> -//
> +// 
> ===------------------------------------------------------------------- 
> ---===//
>
> -def Feature64Bit     : SubtargetFeature<"64bit", "HasX86_64", "true",
> -                                        "Support 64-bit  
> instructions">;
> -def FeatureMMX       : SubtargetFeature<"mmx","X86SSELevel", "MMX",
> -                                        "Enable MMX instructions">;
> -def FeatureSSE1      : SubtargetFeature<"sse", "X86SSELevel", "SSE1",
> -                                        "Enable SSE instructions">;
> -def FeatureSSE2      : SubtargetFeature<"sse2", "X86SSELevel",  
> "SSE2",
> -                                        "Enable SSE2 instructions">;
> -def FeatureSSE3      : SubtargetFeature<"sse3", "X86SSELevel",  
> "SSE3",
> -                                        "Enable SSE3 instructions">;
> -def FeatureSSSE3     : SubtargetFeature<"ssse3", "X86SSELevel",  
> "SSSE3",
> -                                        "Enable SSSE3 instructions">;
> -def Feature3DNow     : SubtargetFeature<"3dnow", "X863DNowLevel",  
> "ThreeDNow",
> -                                        "Enable 3DNow!  
> instructions">;
> -def Feature3DNowA    : SubtargetFeature<"3dnowa", "X863DNowLevel",  
> "ThreeDNowA",
> -                                        "Enable 3DNow! Athlon  
> instructions">;
> +def Feature64Bit   : SubtargetFeature<"64bit", "HasX86_64", "true",
> +                                      "Support 64-bit instructions">;
> +def FeatureMMX     : SubtargetFeature<"mmx","X86SSELevel", "MMX",
> +                                      "Enable MMX instructions">;
> +def FeatureSSE1    : SubtargetFeature<"sse", "X86SSELevel", "SSE1",
> +                                      "Enable SSE instructions",
> +                                      [FeatureMMX]>;
> +def FeatureSSE2    : SubtargetFeature<"sse2", "X86SSELevel", "SSE2",
> +                                      "Enable SSE2 instructions",
> +                                      [FeatureSSE1]>;
> +def FeatureSSE3    : SubtargetFeature<"sse3", "X86SSELevel", "SSE3",
> +                                      "Enable SSE3 instructions",
> +                                      [FeatureSSE2]>;
> +def FeatureSSSE3   : SubtargetFeature<"ssse3", "X86SSELevel",  
> "SSSE3",
> +                                      "Enable SSSE3 instructions",
> +                                      [FeatureSSE3]>;
> +def Feature3DNow   : SubtargetFeature<"3dnow", "X863DNowLevel",  
> "ThreeDNow",
> +                                      "Enable 3DNow! instructions">;
> +def Feature3DNowA  : SubtargetFeature<"3dnowa", "X863DNowLevel",  
> "ThreeDNowA",
> +                                      "Enable 3DNow! Athlon  
> instructions">;
>
>  // 
> ===------------------------------------------------------------------- 
> ---===//
>  // X86 processors supported.
>
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits