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authorDavid Monniaux <david.monniaux@univ-grenoble-alpes.fr>2020-03-14 09:19:26 +0100
committerDavid Monniaux <david.monniaux@univ-grenoble-alpes.fr>2020-03-14 09:19:26 +0100
commitbbe0809b3cd483ce5fc82e4f2d0a106823c54f26 (patch)
tree4088aa9ff1394a76739a299e6b0bd10b6aa6426e /backend/CSE3.v
parentd5e49c9d1e68a2b5305fb18b051a272345283275 (diff)
downloadcompcert-kvx-bbe0809b3cd483ce5fc82e4f2d0a106823c54f26.tar.gz
compcert-kvx-bbe0809b3cd483ce5fc82e4f2d0a106823c54f26.zip
CSE3 alias analysis
Diffstat (limited to 'backend/CSE3.v')
-rw-r--r--backend/CSE3.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/backend/CSE3.v b/backend/CSE3.v
index 161a394a..d0dc3aef 100644
--- a/backend/CSE3.v
+++ b/backend/CSE3.v
@@ -46,7 +46,7 @@ Definition transf_instr (fmap : PMap.t RB.t)
match instr with
| Iop op args dst s =>
let args' := subst_args fmap pc args in
- match find_op_in_fmap fmap pc op args' with
+ match (if is_trivial_op op then None else find_op_in_fmap fmap pc op args') with
| None => Iop op args' dst s
| Some src => Iop Omove (src::nil) dst s
end