From e6d02a085533134ee6bf1bca862b03968a83b591 Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Sun, 25 Aug 2024 00:24:53 +0200
Subject: Rename isascii-avx to simd-isascii

---
 c/isascii-avx512/.gitignore |  1 -
 c/isascii-avx512/Makefile   |  8 ----
 c/isascii-avx512/isascii.c  | 99 ---------------------------------------------
 3 files changed, 108 deletions(-)
 delete mode 100644 c/isascii-avx512/.gitignore
 delete mode 100644 c/isascii-avx512/Makefile
 delete mode 100644 c/isascii-avx512/isascii.c

(limited to 'c/isascii-avx512')

diff --git a/c/isascii-avx512/.gitignore b/c/isascii-avx512/.gitignore
deleted file mode 100644
index 4328e16..0000000
--- a/c/isascii-avx512/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-isascii
diff --git a/c/isascii-avx512/Makefile b/c/isascii-avx512/Makefile
deleted file mode 100644
index 3c49e43..0000000
--- a/c/isascii-avx512/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-include ../base.mk
-
-all: isascii
-isascii: isascii.c
-	$(CC) $(CFLAGS) -lbsd -o $@ $<
-
-clean:
-	rm -f isascii
diff --git a/c/isascii-avx512/isascii.c b/c/isascii-avx512/isascii.c
deleted file mode 100644
index 612aa49..0000000
--- a/c/isascii-avx512/isascii.c
+++ /dev/null
@@ -1,99 +0,0 @@
-#include <sys/mman.h>
-#include <sys/stat.h>
-
-#include <err.h>
-#include <fcntl.h>
-#include <immintrin.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <unistd.h>
-
-#include <bsd/stdlib.h>
-
-#define VECWDTH (512 / 8)
-
-static const unsigned char *readfile(const char *, size_t *);
-
-static const uint8_t charmsk[64] = {
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
-};
-
-bool
-strisascii(const unsigned char *s, size_t n)
-{
-	__m512i msk = _mm512_loadu_epi8(charmsk);
-	while (n >= VECWDTH) {
-		if (_mm512_test_epi8_mask(_mm512_loadu_epi8(s), msk) != 0)
-			return false;
-		s += VECWDTH;
-		n -= VECWDTH;
-	}
-	for (size_t i = 0; i < n; i++) {
-		if (s[i] > 0x7F)
-			return false;
-	}
-	return true;
-}
-
-bool
-strisascii_dumb(const unsigned char *s, size_t n)
-{
-	for (size_t i = 0; i < n; i++) {
-		if (s[i] > 0x7F)
-			return false;
-	}
-	return true;
-}
-
-int
-main(int argc, char **argv)
-{
-	if (argc != 2) {
-		fprintf(stderr, "Usage: %s file\n", getprogname());
-		exit(EXIT_FAILURE);
-	}
-
-	size_t len;
-	int rv = EXIT_SUCCESS;
-	const unsigned char *beg = readfile(argv[1], &len);
-
-	clock_t tmbeg = clock();
-	if (!strisascii(beg, len))
-		puts("Non-ASCII");
-	printf("Elapsed time: %.3fs\n", (double)(clock() - tmbeg) / CLOCKS_PER_SEC);
-
-	tmbeg = clock();
-	if (!strisascii_dumb((const unsigned char *)beg, len))
-		puts("Non-ASCII");
-	printf("Elapsed time: %.3fs\n", (double)(clock() - tmbeg) / CLOCKS_PER_SEC);
-
-	munmap((void *)beg, len);
-	return rv;
-}
-
-const unsigned char *
-readfile(const char *filename, size_t *n)
-{
-	int fd = open(filename, O_RDONLY);
-	if (fd == -1)
-		err(1, "open: %s", filename);
-
-	struct stat sb;
-	if (fstat(fd, &sb) == -1)
-		err(1, "fstat: %s", filename);
-
-	*n = sb.st_size;
-	const unsigned char *p = mmap(NULL, *n, PROT_READ, MAP_PRIVATE, fd, 0);
-	if (p == MAP_FAILED)
-		err(1, "mmap: %s", filename);
-	return p;
-}
-- 
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