• SecondCacaoHackathon

Second CACAO Hackathon

Topic: Port codegens to new instruction format / Unification of variables

Date: 4.-7. Sep. 2006, continued individually at home

Tasks Completed

• Ported all codegens (except mips32) to the new instruction format.

• Running version of the UnifiedVariables IR.

• DUP elimination.
• JSR elimination (weekend).

Things to discuss

• jitdata/methodinfo members
  • instruction list, etc. will be in jitdata
  • simplereg should itself allocate registerdata, memuse, etc. will be passed in jitdata
• unified ICMD table
• reusing interface registers
• return pre-coloring for INVOKE*, BUILTIN
  • Problem: (eg. PPC) return register == argument register
• FMIrefs documentation
• jasmin tests
• builtin replacement
• reported eclipse bug
• reserved registers in instruction.flags
• clean up simplereg
• cfg.c after stack analysis
• document argcount, etc.
• extra copies for STACKVARs.