[Mesa-dev] [PATCH 0/5] [RFC] Value range propagation for NIR
thomashelland90 at gmail.com
Tue Jul 14 15:49:51 PDT 2015
For now you'll just have to check my github repo at:
I'll get the last patch out ASAP, but it seems like something
has taken a huge crap on my send-email.
It failed halfway, and is now crying about git send-email
possibly being broken. Weird stuff.
2015-07-15 0:08 GMT+02:00 Thomas Helland <thomashelland90 at gmail.com>:
> The deadline for GSoC is aproaching a bit faster than I'm
> comfortable with, so I need to get this out on the list
> for some review-action. It's not yet complete, but I think
> it's getting there. At least it should be possible to infer
> what I'm trying to do I think.
> I haven't yet gotten to testing this a whole lot, as I
> wanted to get some feedback before getting to lost with
> all the debugging. It compiles though, so that's nice.
> (apart from some . / -> blunders I got in there just before
> sending out the pathces).
> Things I know are a bit iffy, and that I need to look into,
> is the long citation from LLVM's SCCP at close-to-bottom of the pass.
> TLDR of that section is:
> Since we don't analyze blocks that are results of branching on
> instructions that are undefined the assumptions that the
> pass has made when we get to the end may be wrong.
> I have a sketch in my mind on how to do that though,
> so I don't think it should be that bad.
> I'm hoping to get a similar series on the list tomorrow
> for the loop analysis pass. I just need to figure out
> how to hook the pass up to the metadata system.
> When these two series are out I'll let them soak
> on the list for some comments while I go head-to-head with
> the loop unrolling. Happy reviewing =)
> Thomas Helland (5):
> nir/worklist: Split out the type-independent parts
> nir: Add a worklist for SSA definitions
> nir: Move nir_instr_get_dest_ssa_def to nir.c / nir.h
> nir: Add a helper for iterating over blocks in a cf node
> nir: Add a value range propagation pass
> src/glsl/Makefile.sources | 3 +
> src/glsl/nir/nir.c | 28 +
> src/glsl/nir/nir.h | 8 +
> src/glsl/nir/nir_block_worklist.h | 112 +++
> src/glsl/nir/nir_live_variables.c | 2 +-
> src/glsl/nir/nir_opt_cse.c | 20 -
> src/glsl/nir/nir_opt_value_range.c | 1330 +++++++++++++++++++++++++++++++++++
> src/glsl/nir/nir_ssa_def_worklist.h | 100 +++
> src/glsl/nir/nir_worklist.c | 78 +-
> src/glsl/nir/nir_worklist.h | 44 +-
> 10 files changed, 1637 insertions(+), 88 deletions(-)
> create mode 100644 src/glsl/nir/nir_block_worklist.h
> create mode 100644 src/glsl/nir/nir_opt_value_range.c
> create mode 100644 src/glsl/nir/nir_ssa_def_worklist.h
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