[LLVMdev] llc and Assembler Location Control Directives (original) (raw)
Lew Payne lew.payne at gmail.com
Thu Sep 29 16:12:31 PDT 2011
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I want to locate the module in llc that produces the assembler location control directives which are seen in the .s output file, so that I can modify it. I suspect these are not target-specific, and therefore are probably not in ./src/lib/Target/[mytarg], but I may be wrong. I'm fairly new to all this, so any pointers as to where I should be looking help a great deal.
As an example, the current .s file generated by my target has directives such as .align, .rdata and .text (among others). I want to suppress certain ones which are incompatible with an older version of GCC (don't ask), and I want to add an .rdata to appear before a .asciz string definition. I've successfully compiled after editing the .s file, so I know my changes work. Now I just want to modify llc to output it the way I need, rather than having to edit the .s file each time.
Can someone point me to where I should be looking, within the llc source, for this?
Regards, Lew Payne
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