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Add chibicc

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This program popped up on Hacker News recently. It's the only modern
compiler I've ever seen that doesn't have dependencies and is easily
modified. So I added all of the missing GNU extensions I like to use
which means it might be possible soon to build on non-Linux and have
third party not vendor gcc binaries.
This commit is contained in:
Justine Tunney 2020-12-05 12:20:41 -08:00
parent e44a0cf6f8
commit 8da931a7f6
298 changed files with 19493 additions and 11950 deletions
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84
test/libc/str/strstr_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/alg/alg.h"
#include "libc/bits/bits.h"
#include "libc/dce.h"
#include "libc/mem/mem.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/runtime/gc.h"
#include "libc/str/internal.h"
#include "libc/testlib/testlib.h"
#define MAKESTRING(NAME, VALUE) \
char *NAME = strcpy(tmalloc(sizeof(VALUE) + 16), VALUE)
char *strstr$kmp(const char *haystak, const char *needle) {
return memmem(haystak, strlen(haystak), needle, strlen(needle));
}
char *(*strstri)(const char *, const char *) = strstr$kmp;
FIXTURE(strstr, sse42) {
if (X86_HAVE(SSE4_2)) {
strstri = strstr$sse42;
}
}
TEST(strstr, test_emptyString_isFoundAtBeginning) {
MAKESTRING(haystack, "abc123def");
ASSERT_STREQ(&haystack[0], strstri(haystack, gc(strdup(""))));
ASSERT_STREQ(&haystack[0], strstr(haystack, gc(strdup(""))));
tfree(haystack);
}
TEST(strstr, test_notFound) {
MAKESTRING(haystack, "abc123def");
ASSERT_EQ(NULL, strstri(haystack, gc(strdup("xyz"))));
ASSERT_EQ(NULL, strstr(haystack, gc(strdup("xyz"))));
tfree(haystack);
}
TEST(strstr, test_middleOfString) {
MAKESTRING(haystack, "abc123def");
ASSERT_STREQ(&haystack[3], strstri(haystack, gc(strdup("123"))));
ASSERT_STREQ(&haystack[3], strstr(haystack, gc(strdup("123"))));
tfree(haystack);
}
TEST(strstr, test_endOfString) {
MAKESTRING(haystack, "abc123def");
ASSERT_STREQ(&haystack[8], strstri(haystack, gc(strdup("f"))));
ASSERT_STREQ(&haystack[8], strstr(haystack, gc(strdup("f"))));
tfree(haystack);
}
TEST(strstr, test_secondXmmWord) {
MAKESTRING(haystack, "eeeeeeeeeeeeeeeebbbbbbbbbbb123");
ASSERT_STREQ(&haystack[27], strstri(haystack, gc(strdup("123"))));
ASSERT_STREQ(&haystack[27], strstr(haystack, gc(strdup("123"))));
tfree(haystack);
}
TEST(strstr, test_overlapsXmmWords) {
MAKESTRING(haystack, "eeeeeeeeeeeeeeeebbbbbbbbbbbbbbb");
ASSERT_STREQ(&haystack[15], strstri(haystack, gc(strdup("eb"))));
ASSERT_STREQ(&haystack[15], strstr(haystack, gc(strdup("eb"))));
tfree(haystack);
}