vax.c (vax_output_function_prologue): Use asm_fprintf.

vax.c (vax_output_function_prologue): Use asm_fprintf.

* config/vax/vax.c (vax_output_function_prologue): Use asm_fprintf.
* config/vax/vax.h (VAX_FUNCTION_PROFILER_NAME): New.
(FUNCTION_PROFILER): Rewrite to use ASM_GENERATE_INTERNAL_LABEL,
assemble_name, asm_fprintf, and VAX_FUNCTION_PROFILER_NAME.
(ASM_OUTPUT_MI_THUNK): Use asm_fprintf instead of REGISTER_PREFIX.
(PRINT_OPERAND_PUNCT_VALID_P): Fix comment.
* config/vax/elf.h (FUNCTION_PROFILER): Remove.
(VAX_FUNCTION_PROFILER_NAME): Redefine as "__mcount".

From-SVN: r57801