Source Layout

From Open64 Wiki

Contents 1 Commonly Used Acronyms in Source 2 libspin 3 osprey 4 osprey-gcc 5 osprey-gcc-4.2.0

Commonly Used Acronyms in Source

• PU - Program Unit (function/procedure)
• LNO - Loop Nest Optimiser
• WOpt - Global Optimiser
• IPA - Inter Procedural Analysis
• DSO - Dynamic Shared Object
• LRA - Local Register Allocation
• GRA - Global Register Allocation
• HB - Hyperblock
• TN - Temporary Name
• WN - WHIRL node descriptor
• ST - Symbol Table
• DRA - Distributed Reshape Array

libspin

Provides a number of wrapper functions as well as functionality for Linked lists, GCC Trees, memory management/pools and function/macro emulation to shadow that of GCC's.

• gspin-alloc.c
• gspin-io.c
• gspin-mempool.h
• gspin-tree.h
• gspin-alloc.h
• gspin-io.h
• gspin-tel.c
• gspin-assert.c
• gspin-list.c
• gspin-tel.h
• gspin-assert.h
• gspin-list.h
• gspin-test-driver.c
• gspin-base-types.h
• gspin-mempool.c
• gspin-tree.c

osprey

Osprey is a project to replace the Open64 frontend (based on GCC 2.95) with that of the current GCC.

• arith - The Arithmetic Constant Expression Evaluator for the Cray Frontend
• be
  • be - Makefile suggests this builds the 32 bit host/target version of the code generator (see driver.cxx)
  • cg - Code Generator (Well documented). Contains lots of target specific information especially expr_* files
    • gra_mon - Builds GRA structures from flow graph
    • whirl2ops.cxx - Driver to control WHIRL -> CG -> OPs
  • com - Backend Common Functions
    • fb_whirl - Read feedback file and annotate WHIRL tree with frequency information
    • weak - GCC Run time linker 'weak symbols' fix
    • Whirl2Src - Interface to whirl2c/whirl2f can print WHIRL in source form
  • lno - Target specific stuff for the Loop Nest Optimiser
  • opt - Whirl Optimiser (WOpt)
  • prompf_anl - ProMpf Analysis File Generation which is the map used be whirl2c/whirl2f and by the Loop Nest Optimiser
  • region - Binary Region Generation for the PUs
  • VHO - Very High Optimiser
  • Whirl2c - Translation between the (Very) High Level WHIRL into C)
  • Whirl2f - Translation between the (Very) High Level WHIRL into Fortran)
• clibroot - Cray Specifics?
• common - Essential files for porting
  • targ_info - Target specifics
    • isa - Fundamental to new ports
    • proc - Fundamental to new ports
    • abi - Fundamental to new ports
• crayf90
• cygnus
• dipa - Open Runtime Interprocedural Analysis. Also dumps runtime annotation sections into intermediate ELF file
• driver - GCC Based driver
• fake_ld
• gorc - A directory created for the Google's Open Research Compiler containing frays
• include - Common header files
• init
• instrumentation
  • libinstr - Used to store frequency counts during run of an instrumented program unit (inserted into WHIRL code)
• ipa - Interprocedural Analysis & Optimisiation
• ir_tools - WHIRL file manipulators
• kgccfe - Frontend (essentially a rip of GCC to convert to WHIRL files
• kg++fe - Frontend (essentially a rip of G++ to convert to WHIRL files
• libcif - a library of "Compiler Information File"
• libcmplrs
• libcsup
• libdwarf
• libelf
• libelfutil
• libf
• libF77
• libf90
• libfi
• libfortran
• libI77
• libiberty - a collection of subroutines used by various GNU programs.
• libkapi
• libm - a library of mathmatics functions, including following functions:
  • sin, asin
  • cos, acos
  • tan, atan
  • log, log10
  • sqrt
  • exp
  • cis
  • fmod
  • drem
  • cabs
  • intel/asm (mathmatics arithmetic implemented in x86 ASM)
    • ceil
    • abs
    • floor
    • log
    • sqrt
    • trunc
  • mpis
• libopenmp
• libu
• libU77
• libunwind
• linux - Collection of files used when Open64's predecessor was ported to Linux.
• Makefile
• Makefile.cross
• Makefile.gsetup
• targcygnus_ia32_ia64
• targcygnus_ia32_mips32
• targcygnus_ia32_sl1
• targcygnus_ia32_x8664
• targcygnus_ia64_ia64
• targcygnus_x8664_x8664
• targia32_builtonia32
• targia32_ia64_nodebug
• targia32_mips32
• targia32_nvisa
• targia32_sl1
• targia32_x8664
• targia64
• targia64_ia64_nodebug
• targx8664_builtonia32
• targx8664_x8664
• tools
• wgen - WHIRL generation/Frontend
  • wgen_stmt - Translate GNU STMT trees to WHIRL
  • wgen_spin_symbol - Translate GNU DECL trees to symtab references
  • wgen_misc
  • wgen_decl - Translate DECL trees to WHIRL
  • wgen_expr - GNU Expression trees to WHIRL
  • wgen_dst - Extracts from EDG Frontend Intermediate Representation, the information for the backend to generate DWARF sections
  • varasm - Ripped from GCC contains Output types, declarations for variables, consts and externals
  • main - Main Driver for wgen driver. Performs Spin to WHIRL via libspin
  • c_int_model - C Data type models/C integer model support

osprey-gcc

Seems to be a stock GCC with mentions of Pathscale's Ekopath compiler

osprey-gcc-4.2.0

As before, but with the addition of the decnumber library.