Add new timers for lowlevel LTO streaming

Hi,
this patch adds timevar for loweleve LTO streaming stuff.
Bootstrapped/regtested x86_64-linux, OK?
	* timevar.def (TV_IPA_LTO_DECOMPRESS, TV_IPA_LTO_COMPRESS,
	TV_IPA_LTO_OUTPUT): New.
	* lto-comporess.c: Include timevar.h
	(lto_end_compression, lto_end_uncompression): Add timers.
	* langhooks.c: Include timevar.h
	(lhd_append_data): Add timer.

On Wed, 25 Nov 2015, Jan Hubicka wrote:

> Hi,
> this patch adds timevar for loweleve LTO streaming stuff.
> Bootstrapped/regtested x86_64-linux, OK?

Ok.

Richard.

> 	* timevar.def (TV_IPA_LTO_DECOMPRESS, TV_IPA_LTO_COMPRESS,
> 	TV_IPA_LTO_OUTPUT): New.
> 	* lto-comporess.c: Include timevar.h
> 	(lto_end_compression, lto_end_uncompression): Add timers.
> 	* langhooks.c: Include timevar.h
> 	(lhd_append_data): Add timer.
> Index: timevar.def
> ===================================================================
> --- timevar.def	(revision 230847)
> +++ timevar.def	(working copy)
> @@ -79,6 +79,9 @@ DEFTIMEVAR (TV_IPA_INLINING          , "
>  DEFTIMEVAR (TV_IPA_FNSPLIT           , "ipa function splitting")
>  DEFTIMEVAR (TV_IPA_COMDATS	     , "ipa comdats")
>  DEFTIMEVAR (TV_IPA_OPT		     , "ipa various optimizations")
> +DEFTIMEVAR (TV_IPA_LTO_DECOMPRESS    , "lto stream inflate")
> +DEFTIMEVAR (TV_IPA_LTO_COMPRESS      , "lto stream deflate")
> +DEFTIMEVAR (TV_IPA_LTO_OUTPUT        , "lto stream output")
>  DEFTIMEVAR (TV_IPA_LTO_GIMPLE_IN     , "ipa lto gimple in")
>  DEFTIMEVAR (TV_IPA_LTO_GIMPLE_OUT    , "ipa lto gimple out")
>  DEFTIMEVAR (TV_IPA_LTO_DECL_IN       , "ipa lto decl in")
> Index: lto-compress.c
> ===================================================================
> --- lto-compress.c	(revision 230847)
> +++ lto-compress.c	(working copy)
> @@ -33,6 +33,7 @@ along with GCC; see the file COPYING3.
>     system.h.  */
>  #include <zlib.h>
>  #include "lto-compress.h"
> +#include "timevar.h"
>  
>  /* Compression stream structure, holds the flush callback and opaque token,
>     the buffered data, and a note of whether compressing or uncompressing.  */
> @@ -177,6 +178,8 @@ lto_end_compression (struct lto_compress
>  
>    gcc_assert (stream->is_compression);
>  
> +  timevar_push (TV_IPA_LTO_COMPRESS);
> +
>    out_stream.next_out = outbuf;
>    out_stream.avail_out = outbuf_length;
>    out_stream.next_in = cursor;
> @@ -220,6 +223,7 @@ lto_end_compression (struct lto_compress
>  
>    lto_destroy_compression_stream (stream);
>    free (outbuf);
> +  timevar_pop (TV_IPA_LTO_COMPRESS);
>  }
>  
>  /* Return a new uncompression stream, with CALLBACK flush function passed
> @@ -260,6 +264,7 @@ lto_end_uncompression (struct lto_compre
>    size_t uncompressed_bytes = 0;
>  
>    gcc_assert (!stream->is_compression);
> +  timevar_push (TV_IPA_LTO_DECOMPRESS);
>  
>    while (remaining > 0)
>      {
> @@ -311,4 +316,5 @@ lto_end_uncompression (struct lto_compre
>  
>    lto_destroy_compression_stream (stream);
>    free (outbuf);
> +  timevar_pop (TV_IPA_LTO_DECOMPRESS);
>  }
> Index: langhooks.c
> ===================================================================
> --- langhooks.c	(revision 230847)
> +++ langhooks.c	(working copy)
> @@ -34,6 +34,7 @@ along with GCC; see the file COPYING3.
>  #include "langhooks.h"
>  #include "tree-diagnostic.h"
>  #include "output.h"
> +#include "timevar.h"
>  
>  /* Do nothing; in many cases the default hook.  */
>  
> @@ -658,7 +659,11 @@ void
>  lhd_append_data (const void *data, size_t len, void *)
>  {
>    if (data)
> -    assemble_string ((const char *)data, len);
> +    {
> +      timevar_push (TV_IPA_LTO_OUTPUT);
> +      assemble_string ((const char *)data, len);
> +      timevar_pop (TV_IPA_LTO_OUTPUT);
> +    }
>  }
>  
>  
> 
>