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. --- test/c/Makefile | 2 +- test/c/aes.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'test/c') diff --git a/test/c/Makefile b/test/c/Makefile index 5979dfd4..94feb993 100644 --- a/test/c/Makefile +++ b/test/c/Makefile @@ -32,7 +32,7 @@ all_gcc: $(PROGS:%=%.gcc) test: @for i in $(PROGS); do \ - if ./$$i.compcert | cmp -s - Results/$$i; \ + if $(SIMU) ./$$i.compcert | cmp -s - Results/$$i; \ then echo "$$i: passed"; \ else echo "$$i: FAILED"; exit 2; \ fi; \ diff --git a/test/c/aes.c b/test/c/aes.c index 053324f3..5bd57cbc 100644 --- a/test/c/aes.c +++ b/test/c/aes.c @@ -38,7 +38,8 @@ typedef unsigned int u32; #if defined(__ppc__) || defined(__PPC__) || defined(__ARMEB__) #define ARCH_BIG_ENDIAN -#elif defined(__i386__) || defined(__x86_64__) || defined(__ARMEL__) +#elif defined(__i386__) || defined(__x86_64__) || defined(__ARMEL__) \ + || defined(__riscv) #undef ARCH_BIG_ENDIAN #else #error "unknown endianness" -- cgit