From 20d63e8ff055ba280061a2fc15a033b038890872 Mon Sep 17 00:00:00 2001 From: xleroy Date: Thu, 27 Mar 2014 17:01:55 +0000 Subject: Comments git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2437 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e --- backend/Lineartyping.v | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'backend/Lineartyping.v') diff --git a/backend/Lineartyping.v b/backend/Lineartyping.v index 3085f96b..f1e3d41b 100644 --- a/backend/Lineartyping.v +++ b/backend/Lineartyping.v @@ -39,6 +39,13 @@ Require Import Linear. (** * Tracking the flow of single-precision floats *) +(** At each program point, we infer a set of machine registers + that are guaranteed to contain single-precision floats. + The inference is a simple forward dataflow analysis, iterating on the + list of instructions until a fixpoint is reached. The result of + the analysis is a map from labels to sets of machine registers + containing single-precision floats. *) + Module OrderedMreg := OrderedIndexed(IndexedMreg). Module Regset := FSetAVL.Make(OrderedMreg). -- cgit