[LLVMdev] [PROPOSAL] Attach debugging information with LLVM instruction
rich at pennware.com
Thu Sep 10 14:55:16 PDT 2009
Devang Patel wrote:
> store i32 42, i32* %i, dbg metadata !7
> store i32 1, i32* %j.addr, dbg metadata !8
> br label %if.end, dbg metadata !8
> Now, the optimizer does not need to worry about those llvm.dbg
> hurdles. Instructions do not lose their location information when they
> are rearranged in instruction stream. And the stage is set to produce,
> preserve and emit accurate debug information for inlined functions.
I like this.
Would it be very ugly to treat stoppoint like a pseudo op that filled in
the metadata for subsequent instructions until the end of the basic
block? It might help for backward compatibility.
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