From 81ddaf86984449270cb6309c9f83a5354b2d5d81 Mon Sep 17 00:00:00 2001
From: Dominic Kempf <dominic.kempf@iwr.uni-heidelberg.de>
Date: Wed, 9 Nov 2016 15:19:00 +0100
Subject: [PATCH] Document issue with vector access
---
python/dune/perftool/loopy/target.py | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/python/dune/perftool/loopy/target.py b/python/dune/perftool/loopy/target.py
index 07a2f87c..aa9d0151 100644
--- a/python/dune/perftool/loopy/target.py
+++ b/python/dune/perftool/loopy/target.py
@@ -54,6 +54,14 @@ class DuneASTBuilder(CASTBuilder):
if temp_var.decl_method:
return Line(temp_var.decl_method(temp_var.name, temp_var.shape, temp_var.shape_impl))
+ def add_vector_access(self, access_expr, index):
+ # There is no generic way of implementing a vector access with VCL, as
+ # it might be that the entire statement needs to be rewritten. Consider
+ # the example of an assignment to a vector component. It is *not* of the
+ # form 'x.0 = 2' but instead its 'x.insert(0, 2)'. It is currently not
+ # clear to me how this can be done, so I avoid the sitauation entirely.
+ raise NotImplementedError()
+
def emit_barrier(self, kind, comment):
post_include("#define BARRIER asm volatile(\"\": : :\"memory\")", filetag="operatorfile")
return Line("BARRIER;")
--
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