From e637d041c5c2ee3a3ed395a7dab6c9101e8eb16c Mon Sep 17 00:00:00 2001 From: Xavier Leroy Date: Sat, 1 Oct 2016 17:25:18 +0200 Subject: Support for 64-bit architectures: generic support - Introduce Archi.ptr64 parameter. - Define module Ptrofs of integers as wide as a pointer (64 if Archi.ptr64, 32 otherwise). - Use Ptrofs.int as the offset type for Vptr values and anywhere pointer offsets are manipulated. - Modify Val operations that handle pointers (e.g. Val.add, Val.sub, Val.cmpu) so that in 64-bit pointer mode it is the "long" operation (e.g. Val.addl, Val.subl, Val.cmplu) that handles pointers. - Update the memory model accordingly. - Modify C operations that handle pointers (e.g. addition, subtraction, comparisons) accordingly. - Make it possible to turn off the splitting of 64-bit integers into pairs of 32-bit integers. - Update the compiler front-end and back-end accordingly. --- cfrontend/Cminorgen.v | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'cfrontend/Cminorgen.v') diff --git a/cfrontend/Cminorgen.v b/cfrontend/Cminorgen.v index b9a28ee1..5017fc8e 100644 --- a/cfrontend/Cminorgen.v +++ b/cfrontend/Cminorgen.v @@ -47,8 +47,8 @@ Definition compilenv := PTree.t Z. Definition var_addr (cenv: compilenv) (id: ident): expr := match PTree.get id cenv with - | Some ofs => Econst (Oaddrstack (Int.repr ofs)) - | None => Econst (Oaddrsymbol id Int.zero) + | Some ofs => Econst (Oaddrstack (Ptrofs.repr ofs)) + | None => Econst (Oaddrsymbol id Ptrofs.zero) end. (** * Translation of expressions and statements. *) @@ -269,7 +269,7 @@ Definition transl_funbody Definition transl_function (f: Csharpminor.function): res function := let (cenv, stacksize) := build_compilenv f in - if zle stacksize Int.max_unsigned + if zle stacksize Ptrofs.max_unsigned then transl_funbody cenv stacksize f else Error(msg "Cminorgen: too many local variables, stack size exceeded"). -- cgit