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authorxleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>2010-06-29 08:27:14 +0000
committerxleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>2010-06-29 08:27:14 +0000
commit9c7c84cc40eaacc1e2c13091165785cddecba5ad (patch)
tree65eafe51ad284d88fd5a949e1b2a54cd272f9f91 /backend/CSE.v
parentf4b416882955d9d91bca60f3eb35b95f4124a5be (diff)
downloadcompcert-kvx-9c7c84cc40eaacc1e2c13091165785cddecba5ad.tar.gz
compcert-kvx-9c7c84cc40eaacc1e2c13091165785cddecba5ad.zip
Support for inlined built-ins.
AST: add ef_inline flag to external functions. Selection: recognize calls to inlined built-ins and inline them as Sbuiltin. CminorSel to Asm: added Sbuiltin/Ibuiltin instruction. PrintAsm: adapted expansion of builtins. C2Clight: adapted detection of builtins. Conventions: refactored in a machine-independent part (backend/Conventions) and a machine-dependent part (ARCH/SYS/Conventions1). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1356 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/CSE.v')
-rw-r--r--backend/CSE.v4
1 files changed, 3 insertions, 1 deletions
diff --git a/backend/CSE.v b/backend/CSE.v
index ff79be54..dab8fc31 100644
--- a/backend/CSE.v
+++ b/backend/CSE.v
@@ -189,7 +189,7 @@ Definition add_load (n: numbering) (rd: reg)
(** [add_unknown n rd] returns a numbering where [rd] is mapped to a
fresh value number, and no equations are added. This is useful
- to model instructions with unpredictable results such as [Ialloc]. *)
+ to model instructions with unpredictable results such as [Ibuiltin]. *)
Definition add_unknown (n: numbering) (rd: reg) :=
mknumbering (Psucc n.(num_next))
@@ -348,6 +348,8 @@ Definition transfer (f: function) (pc: node) (before: numbering) :=
empty_numbering
| Itailcall sig ros args =>
empty_numbering
+ | Ibuiltin ef args res s =>
+ add_unknown (kill_loads before) res
| Icond cond args ifso ifnot =>
before
| Ijumptable arg tbl =>