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/Csharpminor.v | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'cfrontend/Csharpminor.v') diff --git a/cfrontend/Csharpminor.v b/cfrontend/Csharpminor.v index e42091af..4393640c 100644 --- a/cfrontend/Csharpminor.v +++ b/cfrontend/Csharpminor.v @@ -321,7 +321,7 @@ Inductive eval_expr: expr -> val -> Prop := eval_expr (Evar id) v | eval_Eaddrof: forall id b, eval_var_addr e id b -> - eval_expr (Eaddrof id) (Vptr b Int.zero) + eval_expr (Eaddrof id) (Vptr b Ptrofs.zero) | eval_Econst: forall cst v, eval_constant cst = Some v -> eval_expr (Econst cst) v -- cgit