larkmjc

/* riscv-soft-float.h */

#ifndef riscv_soft_float_h
#define riscv_soft_float_h

#ifdef __cplusplus
extern "C" {
#endif

/* RV32F */

larkmjc

class u
{
	Inst{11-7} = rd;
	Inst{31-12} = imm{31-12};
}

class uj
{
	Inst{11-7} = rd;
	Inst{19-12} = imm{19-12};

larkmjc

$ ./build/darwin_x86_64/bin/rv-jit build/riscv64-unknown-elf/bin/test-sha512 --trace --log-jit-trace

rv-jit-0.0.0-prealpha-0

jit-trace-begin pc=0x000000000001041c
	# 0x000000000001041c	addi        a6, a3, 1
		lea r14, qword ptr [r11 + 1]
	# 0x0000000000010420	andi        a4, a6, 15
		mov r12, r14
		and r12, 15

larkmjc

/*
 * cc -Wall -O3 -c macos-syscall.c -o macos-syscall.o
 * ld -static -macosx_version_min 10.12 -pagezero_size 0x1000 macos-syscall.o -o macos-syscall
 */

__attribute__ ((visibility("default"))) extern void start(void) asm("start");

#define NR_exit 0x2000001
#define NR_write 0x2000004

larkmjc

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <errno.h>

#include <mach-o/loader.h>
#include <mach-o/swap.h>
#include <mach-o/fat.h>

larkmjc

                Runtime (seconds)

                RV32                    x86-32  RV64                    x86-64
                meta    meta    qemu            meta    meta    qemu
                interp  JIT     user    native  interp  JIT     user    native

primes          11.57   0.59    0.52    0.34     5.07   0.17    0.27    0.11
miniz           32.55   1.58    2.17    0.81    41.52   2.09    2.20    0.76
SHA-512         55.27   2.47    2.74    0.73    23.69   0.70    1.12    0.24
AES             32.75   0.96    1.52    0.37    38.39   1.00    1.61    0.27

larkmjc

diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c
index 73312712d33..cc797b95a3f 100644
--- a/gcc/config/riscv/riscv.c
+++ b/gcc/config/riscv/riscv.c
@@ -2786,7 +2786,8 @@ riscv_memmodel_needs_release_fence (enum memmodel model)
    'C'	Print the integer branch condition for comparison OP.
    'A'	Print the atomic operation suffix for memory model OP.
    'F'	Print a FENCE if the memory model requires a release.
-   'z'	Print x0 if OP is zero, otherwise print OP normally.  */
+   'z'	Print x0 if OP is zero, otherwise print OP normally.

larkmjc

#include <stdio.h>

#if HAVE_ALIASES

#define weak_alias(old, new) \
        extern __typeof(old) new __attribute__((weak, alias(#old)))

#else

#define weak_alias(old, new) \

larkmjc

enum pma_value
{
	/* supported memory range types */
	pma_type_reserved        = 1U<<0,  /* illegal region */
	pma_type_main            = 1U<<1,  /* main memory region */
	pma_type_io              = 1U<<2,  /* IO memory region */

	/* supported memory range protection */
	pma_prot_read            = 1U<<3,  /* region is readable */
	pma_prot_write           = 1U<<4,  /* region is writable */

larkmjc

$ rv-sim -S -o build/riscv64-unknown-elf/bin/test-qsort 
                        _start 0000000000000000000 core-0   :0000000000010156 (ffff0197) auipc       gp, pc - 65536     gp=0x156
                    _start+0x4 0000000000000000001 core-0   :000000000001015a (eaa18193) addi        gp, gp, -342       gp=0x0
                    _start+0x8 0000000000000000002 core-0   :000000000001015e (850a    ) add         a0, zero, sp       a0=0x7effffffff50, sp=0x7effffffff50, zero=0x0
                    _start+0xa 0000000000000000003 core-0   :0000000000010160 (ffff0597) auipc       a1, pc - 65536     a1=0x160
                    _start+0xe 0000000000000000004 core-0   :0000000000010164 (ea058593) addi        a1, a1, -352       a1=0x0
                   _start+0x12 0000000000000000005 core-0   :0000000000010168 (ff017113) andi        sp, sp, -16        sp=0x7effffffff50
                   _start+0x16 0000000000000000006 core-0   :000000000001016c (004000ef) jal         ra, pc + 4         ra=0x10170