[llvm-dev] Generating frame layout information w/o frame pointer

[Rob Lyerly via llvm-dev]

Hi all,

Is there a way to control how clang/LLVM outputs DWARF call frame
information?  In particular, is there a way to specify that the calculation
of the the canonical frame address (CFA) should always use the stack
pointer instead of the frame pointer?  Specifying "-fomit-frame-pointer"
seems to force this behavior on x86-64, but it doesn't have the same effect
for AArch64 (in fact, it looks like this optimization is not fully
implemented on AArch64).

-- 
Rob Lyerly
Graduate Research Assistant, Systems Software Research Group
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