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...ck (prolog, kernel, or epilog). The epilogs are generated in reverse order due to the way the instructions need to be laid out. The first epilog block after the kernel is going to have instructions scheduled in the last stage only, then the next epilog block, if needed, will have instructions from LastStage-1 first, then the LastStage. Let’s say we have instructions x, y, z, that are scheduled in different iterations/stage, x in stage0, y in stage1, and z in stage2, and x generates a value used by y, which generates a value used by z. The generated code will look like: Prolog 0 (this block ends with...

Hi James: Personally, I like the idea of refactoring and more abstraction, But unfortunately, I don't know enough about the edges cases either. BTW: the prototype is still causing quite some Asseertions in PowerPC - some nodes are not generated in correct order. Best, Jinsong Ji (纪金松), PhD. XL/LLVM on Power Compiler Development E-mail: jji at us.ibm.com From: James Molloy <james at