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Re: [PATCH 4/4] define ASM_OUTPUT_LABEL to the name of a function
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: Trevor Saunders <tbsaunde at tbsaunde dot org>
- Cc: tbsaunde+gcc at tbsaunde dot org, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Wed, 5 Aug 2015 15:59:18 +0200
- Subject: Re: [PATCH 4/4] define ASM_OUTPUT_LABEL to the name of a function
- Authentication-results: sourceware.org; auth=none
- References: <1437791820-17927-1-git-send-email-tbsaunde+gcc at tbsaunde dot org> <1437791820-17927-5-git-send-email-tbsaunde+gcc at tbsaunde dot org> <CAFiYyc2eP1e=yBUVwVQbCRHn1jsB3oE3b8exV6qfEYZm9F9WVQ at mail dot gmail dot com> <20150805105650 dot GA27755 at tsaunders-iceball dot corp dot tor1 dot mozilla dot com> <CAFiYyc0UQXp=X__=gynjd7ibBOOebAapJzvyeP+mUEn7Nc3XhA at mail dot gmail dot com> <20150805133617 dot GA1299 at tsaunders-iceball dot corp dot tor1 dot mozilla dot com>
On Wed, Aug 5, 2015 at 3:36 PM, Trevor Saunders <tbsaunde@tbsaunde.org> wrote:
> On Wed, Aug 05, 2015 at 01:47:30PM +0200, Richard Biener wrote:
>> On Wed, Aug 5, 2015 at 12:57 PM, Trevor Saunders <tbsaunde@tbsaunde.org> wrote:
>> > On Mon, Jul 27, 2015 at 11:06:58AM +0200, Richard Biener wrote:
>> >> On Sat, Jul 25, 2015 at 4:37 AM, <tbsaunde+gcc@tbsaunde.org> wrote:
>> >> > From: Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
>> >> >
>> >> > * config/arc/arc.h, config/bfin/bfin.h, config/frv/frv.h,
>> >> > config/ia64/ia64-protos.h, config/ia64/ia64.c, config/ia64/ia64.h,
>> >> > config/lm32/lm32.h, config/mep/mep.h, config/mmix/mmix.h,
>> >> > config/rs6000/rs6000.c, config/rs6000/xcoff.h, config/spu/spu.h,
>> >> > config/visium/visium.h, defaults.h: Define ASM_OUTPUT_LABEL to
>> >> > the name of a function.
>> >> > * output.h (default_output_label): New prototype.
>> >> > * varasm.c (default_output_label): New function.
>> >> > * vmsdbgout.c: Include tm_p.h.
>> >> > * xcoffout.c: Likewise.
>> >>
>> >> Just a general remark - the GCC output machinery is known to be slow,
>> >> adding indirect calls might be not the very best idea without refactoring
>> >> some of it.
>> >>
>> >> Did you do any performance measurements for artificial testcases
>> >> exercising the specific bits you change?
>> >
>> > sorry about the delay, but I finally got a chance to do some perf tests
>> > of the first patch. I took three test cases fold-const.ii, insn-emit.ii
>> > and a random .i from firefox and did 3 trials of the length of 100
>> > compilations. The only non default flag was -std=gnu++11.
>> >
>> > results before patch hookizing output_ascii
>> >
>> > fold-const.ii
>> > real 3m18.051s
>> > user 2m41.340s
>> > sys 0m36.544s
>> > real 3m18.141s
>> > user 2m42.236s
>> > sys 0m35.740s
>> > real 3m18.297s
>> > user 2m42.316s
>> > sys 0m35.804s
>> >
>> > insn-emit.ii
>> > real 9m58.229s
>> > user 8m26.960s
>> > sys 1m31.224s
>> > real 9m57.857s
>> > user 8m24.616s
>> > sys 1m33.072s
>> > real 9m57.922s
>> > user 8m25.232s
>> > sys 1m32.512s
>> >
>> > mozilla.ii
>> > real 8m5.732s
>> > user 6m44.888s
>> > sys 1m20.764s
>> > real 8m5.404s
>> > user 6m44.468s
>> > sys 1m20.856s
>> > real 7m59.197s
>> > user 6m39.632s
>> > sys 1m19.472s
>> >
>> > after patch
>> >
>> > fold-const.ii
>> > real 3m18.488s
>> > user 2m41.972s
>> > sys 0m36.388s
>> > real 3m18.215s
>> > user 2m41.640s
>> > sys 0m36.432s
>> > real 3m18.368s
>> > user 2m42.492s
>> > sys 0m35.720s
>> >
>> > insn-emit.ii
>> > real 10m4.700s
>> > user 8m32.536s
>> > sys 1m32.120s
>> > real 10m4.241s
>> > user 8m31.456s
>> > sys 1m32.728s
>> > real 10m4.515s
>> > user 8m32.056s
>> > sys 1m32.396s
>> >
>> > mozilla.ii
>> > real 7m58.018s
>> > user 6m38.008s
>> > sys 1m19.924s
>> > real 7m59.269s
>> > user 6m37.736s
>> > sys 1m21.448s
>> > real 7m58.254s
>> > user 6m37.828s
>> > sys 1m20.324s
>> >
>> > So, roughly that looks to me like a range from improving by .5% to
>> > regressing by 1%. I'm not sure what could cause an improvement, so I
>> > kind of wonder how valid these results are.
>>
>> Hmm, indeed. The speedup looks suspicious.
>>
>> > Another question is how one can refactor the output machinary to be
>> > faster. My first thought is to buffer text internally before calling
>> > stdio functions, but that seems like a giant job.
>>
>> stdio functions are already buffering, so I don't know either.
>
> yeah, but the over head of calling functions in libc is higher than
> that for functions in gcc (especially if they can get inlined)
> right? Especially when a lot of these things seme to loop calling
> putc...
obstacks are used elsewhere to do char buffering. But not sure how
easy it is to pick low-hanging fruit here.
I suppose it would be nice to isolate the hot parts of the output machinery
only during a bootstrap for example.
>> But yes, going the libas route would improve things here, or for
>> example enhancing gas to be able to eat target binary data
>> without the need to encode it in printable characters...
>>
>> .raw_data number-of-bytes
>> <raw data>
>>
>> Makes it quite unparsable to editors of course ...
>
> The idea of having .S files that aren't reasonably editable seems kind
> of silly, but I guess its up to the gas people.
Heh, indeed. Maybe instead do
.insert_from_file <filename>
and do that only when we are using -pipe or so.
Richard.
> Trev
>
>>
>> Richard.
>>
>> > thanks!
>> >
>> > Trev
>> >
>> > far outside of noise,
>> >>
>> >> Richard.
>> >>
>> >> > ---
>> >> > gcc/config/arc/arc.h | 3 +--
>> >> > gcc/config/bfin/bfin.h | 5 +----
>> >> > gcc/config/frv/frv.h | 6 +-----
>> >> > gcc/config/ia64/ia64-protos.h | 1 +
>> >> > gcc/config/ia64/ia64.c | 11 +++++++++++
>> >> > gcc/config/ia64/ia64.h | 8 +-------
>> >> > gcc/config/lm32/lm32.h | 3 +--
>> >> > gcc/config/mep/mep.h | 8 +-------
>> >> > gcc/config/mmix/mmix.h | 3 +--
>> >> > gcc/config/pa/pa-protos.h | 1 +
>> >> > gcc/config/pa/pa.c | 12 ++++++++++++
>> >> > gcc/config/pa/pa.h | 9 +--------
>> >> > gcc/config/rs6000/rs6000-protos.h | 1 +
>> >> > gcc/config/rs6000/rs6000.c | 8 ++++++++
>> >> > gcc/config/rs6000/xcoff.h | 3 +--
>> >> > gcc/config/spu/spu.h | 3 +--
>> >> > gcc/config/visium/visium.h | 3 +--
>> >> > gcc/defaults.h | 6 +-----
>> >> > gcc/output.h | 3 +++
>> >> > gcc/varasm.c | 9 +++++++++
>> >> > gcc/vmsdbgout.c | 1 +
>> >> > gcc/xcoffout.c | 1 +
>> >> > 22 files changed, 60 insertions(+), 48 deletions(-)
>> >> >
>> >> > diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h
>> >> > index d98cce1..d3747b9 100644
>> >> > --- a/gcc/config/arc/arc.h
>> >> > +++ b/gcc/config/arc/arc.h
>> >> > @@ -1245,8 +1245,7 @@ do { \
>> >> >
>> >> > /* This is how to output the definition of a user-level label named NAME,
>> >> > such as the label on a static function or variable NAME. */
>> >> > -#define ASM_OUTPUT_LABEL(FILE, NAME) \
>> >> > -do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > #define ASM_NAME_P(NAME) ( NAME[0]=='*')
>> >> >
>> >> > diff --git a/gcc/config/bfin/bfin.h b/gcc/config/bfin/bfin.h
>> >> > index 26ba7c2..08906aa 100644
>> >> > --- a/gcc/config/bfin/bfin.h
>> >> > +++ b/gcc/config/bfin/bfin.h
>> >> > @@ -1044,10 +1044,7 @@ typedef enum directives {
>> >> > ASM_OUTPUT_LABEL(FILE, NAME); \
>> >> > } while (0)
>> >> >
>> >> > -#define ASM_OUTPUT_LABEL(FILE, NAME) \
>> >> > - do { assemble_name (FILE, NAME); \
>> >> > - fputs (":\n",FILE); \
>> >> > - } while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > #define ASM_OUTPUT_LABELREF(FILE,NAME) \
>> >> > do { fprintf (FILE, "_%s", NAME); \
>> >> > diff --git a/gcc/config/frv/frv.h b/gcc/config/frv/frv.h
>> >> > index b0d66fd..1d25974 100644
>> >> > --- a/gcc/config/frv/frv.h
>> >> > +++ b/gcc/config/frv/frv.h
>> >> > @@ -1668,11 +1668,7 @@ do { \
>> >> > `assemble_name (STREAM, NAME)' to output the name itself; before and after
>> >> > that, output the additional assembler syntax for defining the name, and a
>> >> > newline. */
>> >> > -#define ASM_OUTPUT_LABEL(STREAM, NAME) \
>> >> > -do { \
>> >> > - assemble_name (STREAM, NAME); \
>> >> > - fputs (":\n", STREAM); \
>> >> > -} while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > /* Globalizing directive for a label. */
>> >> > #define GLOBAL_ASM_OP "\t.globl "
>> >> > diff --git a/gcc/config/ia64/ia64-protos.h b/gcc/config/ia64/ia64-protos.h
>> >> > index 29fc714..8e540e4 100644
>> >> > --- a/gcc/config/ia64/ia64-protos.h
>> >> > +++ b/gcc/config/ia64/ia64-protos.h
>> >> > @@ -72,6 +72,7 @@ extern rtx ia64_expand_builtin (tree, rtx, rtx, machine_mode, int);
>> >> > extern rtx ia64_va_arg (tree, tree);
>> >> > #endif /* RTX_CODE */
>> >> >
>> >> > +extern void ia64_output_label (FILE *f, const char *label);
>> >> > extern void ia64_asm_output_external (FILE *, tree, const char *);
>> >> > extern void ia64_vms_output_aligned_decl_common (FILE *, tree, const char *,
>> >> > unsigned HOST_WIDE_INT,
>> >> > diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
>> >> > index 779fc58..e07ebb5 100644
>> >> > --- a/gcc/config/ia64/ia64.c
>> >> > +++ b/gcc/config/ia64/ia64.c
>> >> > @@ -10522,6 +10522,17 @@ ia64_hpux_function_arg_padding (machine_mode mode, const_tree type)
>> >> > return DEFAULT_FUNCTION_ARG_PADDING (mode, type);
>> >> > }
>> >> >
>> >> > +/* Assemble a label. */
>> >> > +
>> >> > +void
>> >> > +ia64_output_label (FILE *f, const char *label)
>> >> > +{
>> >> > + ia64_asm_output_label = 1;
>> >> > + assemble_name (f, label);
>> >> > + fputs (":\n", f);
>> >> > + ia64_asm_output_label = 0;
>> >> > +}
>> >> > +
>> >> > /* Emit text to declare externally defined variables and functions, because
>> >> > the Intel assembler does not support undefined externals. */
>> >> >
>> >> > diff --git a/gcc/config/ia64/ia64.h b/gcc/config/ia64/ia64.h
>> >> > index 4b62423..1afa7b7 100644
>> >> > --- a/gcc/config/ia64/ia64.h
>> >> > +++ b/gcc/config/ia64/ia64.h
>> >> > @@ -1246,13 +1246,7 @@ do { \
>> >> > why ia64_asm_output_label exists. */
>> >> >
>> >> > extern int ia64_asm_output_label;
>> >> > -#define ASM_OUTPUT_LABEL(STREAM, NAME) \
>> >> > -do { \
>> >> > - ia64_asm_output_label = 1; \
>> >> > - assemble_name (STREAM, NAME); \
>> >> > - fputs (":\n", STREAM); \
>> >> > - ia64_asm_output_label = 0; \
>> >> > -} while (0)
>> >> > +#define ASM_OUTPUT_LABEL ia64_output_label
>> >> >
>> >> > /* Globalizing directive for a label. */
>> >> > #define GLOBAL_ASM_OP "\t.global "
>> >> > diff --git a/gcc/config/lm32/lm32.h b/gcc/config/lm32/lm32.h
>> >> > index 986383f..9e8c667 100644
>> >> > --- a/gcc/config/lm32/lm32.h
>> >> > +++ b/gcc/config/lm32/lm32.h
>> >> > @@ -443,8 +443,7 @@ do \
>> >> > } \
>> >> > while (0)
>> >> >
>> >> > -#define ASM_OUTPUT_LABEL(FILE, NAME) \
>> >> > - do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > #define ASM_OUTPUT_LABELREF(FILE,NAME) \
>> >> > do { \
>> >> > diff --git a/gcc/config/mep/mep.h b/gcc/config/mep/mep.h
>> >> > index f7322cb7..8a9d447 100644
>> >> > --- a/gcc/config/mep/mep.h
>> >> > +++ b/gcc/config/mep/mep.h
>> >> > @@ -625,13 +625,7 @@ typedef struct
>> >> > #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(STREAM, DECL, NAME, SIZE, ALIGNMENT) \
>> >> > mep_output_aligned_common (STREAM, DECL, NAME, SIZE, ALIGNMENT, 0)
>> >> >
>> >> > -#define ASM_OUTPUT_LABEL(STREAM, NAME) \
>> >> > - do \
>> >> > - { \
>> >> > - assemble_name (STREAM, NAME); \
>> >> > - fputs (":\n", STREAM); \
>> >> > - } \
>> >> > - while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > /* Globalizing directive for a label. */
>> >> > #define GLOBAL_ASM_OP "\t.globl "
>> >> > diff --git a/gcc/config/mmix/mmix.h b/gcc/config/mmix/mmix.h
>> >> > index 29d39bc..aac5aa0 100644
>> >> > --- a/gcc/config/mmix/mmix.h
>> >> > +++ b/gcc/config/mmix/mmix.h
>> >> > @@ -647,8 +647,7 @@ typedef struct { int regs; int lib; } CUMULATIVE_ARGS;
>> >> >
>> >> > /* Node: Label Output */
>> >> >
>> >> > -#define ASM_OUTPUT_LABEL(STREAM, NAME) \
>> >> > - mmix_asm_output_label (STREAM, NAME)
>> >> > +#define ASM_OUTPUT_LABEL mmix_asm_output_label
>> >> >
>> >> > #define ASM_OUTPUT_INTERNAL_LABEL(STREAM, NAME) \
>> >> > mmix_asm_output_internal_label (STREAM, NAME)
>> >> > diff --git a/gcc/config/pa/pa-protos.h b/gcc/config/pa/pa-protos.h
>> >> > index 0e13cd5..46a3e3b 100644
>> >> > --- a/gcc/config/pa/pa-protos.h
>> >> > +++ b/gcc/config/pa/pa-protos.h
>> >> > @@ -110,6 +110,7 @@ extern void pa_asm_output_aligned_common (FILE *, const char *,
>> >> > extern void pa_asm_output_aligned_local (FILE *, const char *,
>> >> > unsigned HOST_WIDE_INT,
>> >> > unsigned int);
>> >> > +extern void pa_output_label (FILE *f, const char *label);
>> >> > extern void pa_hpux_asm_output_external (FILE *, tree, const char *);
>> >> > extern bool pa_cannot_change_mode_class (machine_mode, machine_mode,
>> >> > enum reg_class);
>> >> > diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
>> >> > index b24413a..2bcaa7e 100644
>> >> > --- a/gcc/config/pa/pa.c
>> >> > +++ b/gcc/config/pa/pa.c
>> >> > @@ -9761,6 +9761,18 @@ pa_reloc_rw_mask (void)
>> >> > return 3;
>> >> > }
>> >> >
>> >> > +/* Assemble a lable. */
>> >> > +
>> >> > +void
>> >> > +pa_output_label (FILE *f, const char *label)
>> >> > +{
>> >> > + assemble_name (f, label);
>> >> > + if (TARGET_GAS)
>> >> > + fputs (":\n", f);
>> >> > + else
>> >> > + fputc ('\n', (f));
>> >> > +}
>> >> > +
>> >> > static void
>> >> > pa_globalize_label (FILE *stream, const char *name)
>> >> > {
>> >> > diff --git a/gcc/config/pa/pa.h b/gcc/config/pa/pa.h
>> >> > index bdfbb16..595a10b 100644
>> >> > --- a/gcc/config/pa/pa.h
>> >> > +++ b/gcc/config/pa/pa.h
>> >> > @@ -1107,14 +1107,7 @@ do { \
>> >> > /* This is how to output the definition of a user-level label named NAME,
>> >> > such as the label on a static function or variable NAME. */
>> >> >
>> >> > -#define ASM_OUTPUT_LABEL(FILE,NAME) \
>> >> > - do { \
>> >> > - assemble_name ((FILE), (NAME)); \
>> >> > - if (TARGET_GAS) \
>> >> > - fputs (":\n", (FILE)); \
>> >> > - else \
>> >> > - fputc ('\n', (FILE)); \
>> >> > - } while (0)
>> >> > +#define ASM_OUTPUT_LABEL pa_output_label
>> >> >
>> >> > /* This is how to output a reference to a user-level label named NAME.
>> >> > `assemble_name' uses this. */
>> >> > diff --git a/gcc/config/rs6000/rs6000-protos.h b/gcc/config/rs6000/rs6000-protos.h
>> >> > index 560a825..031614f 100644
>> >> > --- a/gcc/config/rs6000/rs6000-protos.h
>> >> > +++ b/gcc/config/rs6000/rs6000-protos.h
>> >> > @@ -169,6 +169,7 @@ extern int function_ok_for_sibcall (tree);
>> >> > extern int rs6000_reg_parm_stack_space (tree, bool);
>> >> > extern void rs6000_xcoff_declare_function_name (FILE *, const char *, tree);
>> >> > extern void rs6000_xcoff_declare_object_name (FILE *, const char *, tree);
>> >> > +extern void rs6000_xcoff_output_label (FILE *f, const char *label);
>> >> > extern void rs6000_elf_declare_function_name (FILE *, const char *, tree);
>> >> > extern bool rs6000_elf_in_small_data_p (const_tree);
>> >> > #ifdef ARGS_SIZE_RTX
>> >> > diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
>> >> > index c8794b4..a214010 100644
>> >> > --- a/gcc/config/rs6000/rs6000.c
>> >> > +++ b/gcc/config/rs6000/rs6000.c
>> >> > @@ -30364,6 +30364,14 @@ rs6000_xcoff_asm_output_anchor (rtx symbol)
>> >> > fprintf (asm_out_file, "\n");
>> >> > }
>> >> >
>> >> > +/* Assemble the given label. */
>> >> > +void
>> >> > +rs6000_xcoff_output_label (FILE *f, const char *label)
>> >> > +{
>> >> > + RS6000_OUTPUT_BASENAME (f, label);
>> >> > + fputs (":\n", f);
>> >> > +}
>> >> > +
>> >> > static void
>> >> > rs6000_xcoff_asm_globalize_label (FILE *stream, const char *name)
>> >> > {
>> >> > diff --git a/gcc/config/rs6000/xcoff.h b/gcc/config/rs6000/xcoff.h
>> >> > index 8b0cb27..263e239 100644
>> >> > --- a/gcc/config/rs6000/xcoff.h
>> >> > +++ b/gcc/config/rs6000/xcoff.h
>> >> > @@ -119,8 +119,7 @@
>> >> > /* This is how to output the definition of a user-level label named NAME,
>> >> > such as the label on a static function or variable NAME. */
>> >> >
>> >> > -#define ASM_OUTPUT_LABEL(FILE,NAME) \
>> >> > - do { RS6000_OUTPUT_BASENAME (FILE, NAME); fputs (":\n", FILE); } while (0)
>> >> > +#define ASM_OUTPUT_LABEL rs6000_xcoff_output_label
>> >> >
>> >> > /* This is how to output a command to make the user-level label named NAME
>> >> > defined for reference from other files. */
>> >> > diff --git a/gcc/config/spu/spu.h b/gcc/config/spu/spu.h
>> >> > index 25fa435..f35b55e 100644
>> >> > --- a/gcc/config/spu/spu.h
>> >> > +++ b/gcc/config/spu/spu.h
>> >> > @@ -443,8 +443,7 @@ do { \
>> >> >
>> >> >
>> >> > /* Label Output */
>> >> > -#define ASM_OUTPUT_LABEL(FILE,NAME) \
>> >> > - do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > #define ASM_OUTPUT_LABELREF(FILE, NAME) \
>> >> > asm_fprintf (FILE, "%U%s", default_strip_name_encoding (NAME))
>> >> > diff --git a/gcc/config/visium/visium.h b/gcc/config/visium/visium.h
>> >> > index a2ab61c..6457c55 100644
>> >> > --- a/gcc/config/visium/visium.h
>> >> > +++ b/gcc/config/visium/visium.h
>> >> > @@ -1440,8 +1440,7 @@ do \
>> >> > `assemble_name (STREAM, NAME)' to output the name itself; before
>> >> > and after that, output the additional assembler syntax for defining
>> >> > the name, and a newline. */
>> >> > -#define ASM_OUTPUT_LABEL(STREAM,NAME) \
>> >> > - do { assemble_name (STREAM, NAME); fputs (":\n", STREAM); } while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> >
>> >> > /* Globalizing directive for a label */
>> >> > #define GLOBAL_ASM_OP "\t.global "
>> >> > diff --git a/gcc/defaults.h b/gcc/defaults.h
>> >> > index 3ecf9fd..b1465de 100644
>> >> > --- a/gcc/defaults.h
>> >> > +++ b/gcc/defaults.h
>> >> > @@ -89,11 +89,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
>> >> > NAME, such as the label on variable NAME. */
>> >> >
>> >> > #ifndef ASM_OUTPUT_LABEL
>> >> > -#define ASM_OUTPUT_LABEL(FILE,NAME) \
>> >> > - do { \
>> >> > - assemble_name ((FILE), (NAME)); \
>> >> > - fputs (":\n", (FILE)); \
>> >> > - } while (0)
>> >> > +#define ASM_OUTPUT_LABEL default_output_label
>> >> > #endif
>> >> >
>> >> > /* This is how to output the definition of a user-level label named
>> >> > diff --git a/gcc/output.h b/gcc/output.h
>> >> > index 8aa648a..07172d5 100644
>> >> > --- a/gcc/output.h
>> >> > +++ b/gcc/output.h
>> >> > @@ -246,6 +246,9 @@ extern void assemble_name_raw (FILE *, const char *);
>> >> > be marked as referenced. */
>> >> > extern void assemble_name (FILE *, const char *);
>> >> >
>> >> > +/* Assemble a label. */
>> >> > +extern void default_output_label (FILE *f, const char *label);
>> >> > +
>> >> > /* Return the assembler directive for creating a given kind of integer
>> >> > object. SIZE is the number of bytes in the object and ALIGNED_P
>> >> > indicates whether it is known to be aligned. Return NULL if the
>> >> > diff --git a/gcc/varasm.c b/gcc/varasm.c
>> >> > index c2bfbf0..9c5f12d 100644
>> >> > --- a/gcc/varasm.c
>> >> > +++ b/gcc/varasm.c
>> >> > @@ -2580,6 +2580,15 @@ assemble_name (FILE *file, const char *name)
>> >> > assemble_name_raw (file, name);
>> >> > }
>> >> >
>> >> > +/* Assemble a label. */
>> >> > +
>> >> > +void
>> >> > +default_output_label (FILE *f, const char *label)
>> >> > +{
>> >> > + assemble_name (f, label);
>> >> > + fputs (":\n", f);
>> >> > +}
>> >> > +
>> >> > /* Allocate SIZE bytes writable static space with a gensym name
>> >> > and return an RTX to refer to its address. */
>> >> >
>> >> > diff --git a/gcc/vmsdbgout.c b/gcc/vmsdbgout.c
>> >> > index 0204740..d04b8fb 100644
>> >> > --- a/gcc/vmsdbgout.c
>> >> > +++ b/gcc/vmsdbgout.c
>> >> > @@ -37,6 +37,7 @@ along with GCC; see the file COPYING3. If not see
>> >> > #include "langhooks.h"
>> >> > #include "function.h"
>> >> > #include "target.h"
>> >> > +#include "tm_p.h"
>> >> >
>> >> > /* Difference in seconds between the VMS Epoch and the Unix Epoch */
>> >> > static const long long vms_epoch_offset = 3506716800ll;
>> >> > diff --git a/gcc/xcoffout.c b/gcc/xcoffout.c
>> >> > index 0f11115..83959c8 100644
>> >> > --- a/gcc/xcoffout.c
>> >> > +++ b/gcc/xcoffout.c
>> >> > @@ -35,6 +35,7 @@ along with GCC; see the file COPYING3. If not see
>> >> > #include "output.h"
>> >> > #include "target.h"
>> >> > #include "debug.h"
>> >> > +#include "tm_p.h"
>> >> >
>> >> > #ifdef XCOFF_DEBUGGING_INFO
>> >> >
>> >> > --
>> >> > 2.4.0
>> >> >