From f642817f0dc761e51c3bd362f75b0068a8d4b0c8 Mon Sep 17 00:00:00 2001 From: Xavier Leroy Date: Fri, 28 Apr 2017 15:56:59 +0200 Subject: RISC-V port and assorted changes This commits adds code generation for the RISC-V architecture, both in 32- and 64-bit modes. The generated code was lightly tested using the simulator and cross-binutils from https://riscv.org/software-tools/ This port required the following additional changes: - Integers: More properties about shrx - SelectOp: now provides smart constructors for mulhs and mulhu - SelectDiv, 32-bit integer division and modulus: implement constant propagation, use the new smart constructors mulhs and mulhu. - Runtime library: if no asm implementation is provided, run the reference C implementation through CompCert. Since CompCert rejects the definitions of names of special functions such as __i64_shl, the reference implementation now uses "i64_" names, e.g. "i64_shl", and a renaming "i64_ -> __i64_" is performed over the generated assembly file, before assembling and building the runtime library. - test/: add SIMU make variable to run tests through a simulator - test/regression/alignas.c: make sure _Alignas and _Alignof are not #define'd by C headers commit da14495c01cf4f66a928c2feff5c53f09bde837f Author: Xavier Leroy Date: Thu Apr 13 17:36:10 2017 +0200 RISC-V port, continued Now working on Asmgen. commit 36f36eb3a5abfbb8805960443d087b6a83e86005 Author: Xavier Leroy Date: Wed Apr 12 17:26:39 2017 +0200 RISC-V port, first steps This port is based on Prashanth Mundkur's experimental RV32 port and brings it up to date with CompCert, and adds 64-bit support (RV64). Work in progress. --- arm/SelectOpproof.v | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arm/SelectOpproof.v') diff --git a/arm/SelectOpproof.v b/arm/SelectOpproof.v index dd194498..f025e345 100644 --- a/arm/SelectOpproof.v +++ b/arm/SelectOpproof.v @@ -337,6 +337,16 @@ Proof. TrivialExists. Qed. +Theorem eval_mulhs: binary_constructor_sound mulhs Val.mulhs. +Proof. + unfold mulhs; red; intros; TrivialExists. +Qed. + +Theorem eval_mulhu: binary_constructor_sound mulhu Val.mulhu. +Proof. + unfold mulhu; red; intros; TrivialExists. +Qed. + Theorem eval_andimm: forall n, unary_constructor_sound (andimm n) (fun x => Val.and x (Vint n)). Proof. -- cgit