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author | Xavier Leroy <xavier.leroy@inria.fr> | 2015-04-21 10:21:06 +0200 |
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committer | Xavier Leroy <xavier.leroy@inria.fr> | 2015-04-21 10:21:06 +0200 |
commit | 426881cde464691b61c5c49cf5038d21aace75fe (patch) | |
tree | 0817d5fe4d5d51abd793e471f73f0ad9de3f2228 /common | |
parent | 1b5db339bb05f773a6a132be4c0b8cea54d50461 (diff) | |
download | compcert-426881cde464691b61c5c49cf5038d21aace75fe.tar.gz compcert-426881cde464691b61c5c49cf5038d21aace75fe.zip |
Support for GCC-style extended asm, continued:
- support "r", "m" and "i" constraints
- support "%Q" and "%R" modifiers for register pairs
- support register clobbers
- split off analysis and transformation of asm statements in
cparser/ExtendedAsm.ml
Diffstat (limited to 'common')
-rw-r--r-- | common/AST.v | 7 | ||||
-rw-r--r-- | common/Events.v | 2 | ||||
-rw-r--r-- | common/PrintAST.ml | 2 |
3 files changed, 6 insertions, 5 deletions
diff --git a/common/AST.v b/common/AST.v index 1e1e2b9d..2550844b 100644 --- a/common/AST.v +++ b/common/AST.v @@ -584,7 +584,7 @@ Inductive external_function : Type := (** Another form of annotation that takes one argument, produces an event carrying the text and the value of this argument, and returns the value of the argument. *) - | EF_inline_asm (text: ident) (sg: signature). + | EF_inline_asm (text: ident) (sg: signature) (clobbers: list ident). (** Inline [asm] statements. Semantically, treated like an annotation with no parameters ([EF_annot text nil]). To be used with caution, as it can invalidate the semantic @@ -606,7 +606,7 @@ Definition ef_sig (ef: external_function): signature := | EF_memcpy sz al => mksignature (Tint :: Tint :: nil) None cc_default | EF_annot text targs => mksignature targs None cc_default | EF_annot_val text targ => mksignature (targ :: nil) (Some targ) cc_default - | EF_inline_asm text sg => sg + | EF_inline_asm text sg clob => sg end. (** Whether an external function should be inlined by the compiler. *) @@ -624,7 +624,7 @@ Definition ef_inline (ef: external_function) : bool := | EF_memcpy sz al => true | EF_annot text targs => true | EF_annot_val text targ => true - | EF_inline_asm text targs => true + | EF_inline_asm text sg clob => true end. (** Whether an external function must reload its arguments. *) @@ -642,6 +642,7 @@ Proof. generalize ident_eq signature_eq chunk_eq typ_eq zeq Int.eq_dec; intros. decide equality. apply list_eq_dec. auto. + apply list_eq_dec. auto. Defined. Global Opaque external_function_eq. diff --git a/common/Events.v b/common/Events.v index 62765fd3..3bec15db 100644 --- a/common/Events.v +++ b/common/Events.v @@ -1480,7 +1480,7 @@ Definition external_call (ef: external_function): extcall_sem := | EF_memcpy sz al => extcall_memcpy_sem sz al | EF_annot txt targs => extcall_annot_sem txt targs | EF_annot_val txt targ => extcall_annot_val_sem txt targ - | EF_inline_asm txt sg => inline_assembly_sem txt sg + | EF_inline_asm txt sg clb => inline_assembly_sem txt sg end. Theorem external_call_spec: diff --git a/common/PrintAST.ml b/common/PrintAST.ml index 387bf261..76305d02 100644 --- a/common/PrintAST.ml +++ b/common/PrintAST.ml @@ -53,7 +53,7 @@ let name_of_external = function sprintf "memcpy size %s align %s " (Z.to_string sz) (Z.to_string al) | EF_annot(text, targs) -> sprintf "annot %S" (extern_atom text) | EF_annot_val(text, targ) -> sprintf "annot_val %S" (extern_atom text) - | EF_inline_asm(text, sg) -> sprintf "inline_asm %S" (extern_atom text) + | EF_inline_asm(text, sg, clob) -> sprintf "inline_asm %S" (extern_atom text) let rec print_annot_arg px oc = function | AA_base x -> px oc x |