[llvm-dev] Fwd: getting started changing the emitted code: at one instruction at function top

[Hal Finkel via llvm-dev]

Hi Gry,

Yes, this depends on the backend. You'll want to look at your backend's *FrameLowering::emitPrologue function (in lib/Target/*/*FrameLowering.cpp).

 -Hal

----- Original Message -----
> From: "Gry Gunvor via llvm-dev" <llvm-dev at lists.llvm.org>
> To: llvm-dev at lists.llvm.org
> Sent: Sunday, December 20, 2015 10:12:58 AM
> Subject: [llvm-dev] Fwd: getting started changing the emitted code: at one instruction at function top
> 
> I'm just getting started changing the emitted code.  Suppose I want
> to
> just add one new instruction to the function prologue at the top.
> Where would I do this?  Does it depend on the backend?  I'm targeting
> RISCV64.
> 
> Gry
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-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory