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test/wcc: run the unit loops fully in process

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000_smoke drops its popen ww -V leg (driver version parity moves to
949_driver_flagargs); 400_w6c feeds its sources through lex/parse/
check/cgen into open_memstream instead of spawning w6c. The five unit
binaries now hold zero subprocess calls.
This commit is contained in:
Hojun-Cho
2026-08-07 23:02:47 +09:00
parent aa0f77b891
commit b2899dd8d3
2 changed files with 76 additions and 96 deletions
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39
test/wcc/000_smoke.c
View File

@@ -1,10 +1,8 @@
/* /*
* 000_smoke — Phase 0 smoke test. * 000_smoke — Phase 0 smoke test.
* *
* Asserts: * Asserts arena allocation and growth through libwcc, plus the configured
* - libwcc symbols (newarena/amalloc/freearena, fatal/errorf/warnf) * version constant. Driver behavior belongs to the driver integration tests.
* are linkable.
* - `ww -V` exits 0 and prints the configured version.
*/ */
#include "ww.h" #include "ww.h"
#include <stdlib.h> #include <stdlib.h>
@@ -44,44 +42,11 @@ test_version(void)
} }
} }
static void
test_ww_minus_v(void)
{
const char *bin = getenv("BIN");
if (bin == NULL)
bin = "out/bin";
char cmd[512];
snprintf(cmd, sizeof cmd, "%s/ww -V", bin);
FILE *p = popen(cmd, "r");
if (p == NULL) {
fprintf(stderr, "smoke: popen %s\n", cmd);
exit(1);
}
char buf[128];
size_t n = fread(buf, 1, sizeof buf - 1, p);
buf[n] = '\0';
int rc = pclose(p);
if (rc != 0) {
fprintf(stderr, "smoke: ww -V exit %d\n", rc);
exit(1);
}
if (strstr(buf, "ww ") != buf) {
fprintf(stderr, "smoke: ww -V output not 'ww ...': %s\n", buf);
exit(1);
}
if (strstr(buf, WW_VERSION) == NULL) {
fprintf(stderr, "smoke: ww -V missing version %s in: %s\n",
WW_VERSION, buf);
exit(1);
}
}
int int
main(void) main(void)
{ {
test_arena(); test_arena();
test_version(); test_version();
test_ww_minus_v();
puts("smoke: ok"); puts("smoke: ok");
return 0; return 0;
} }

133
test/wcc/400_w6c.c
View File

@@ -1,91 +1,106 @@
/* /*
* 400_6c — codegen smoke tests. Each row supplies a tiny ww source * 400_w6c — in-process codegen smoke tests. Each row supplies one tiny ww
* and a list of substrings expected in the emitted .s. We don't * source and the assembly fragments it must emit. Full-file golden matches
* golden-match the whole file (too brittle); we just verify that * would bind the test to unrelated output details.
* key opcodes and operand shapes show up.
*/ */
#include "gc.h"
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h>
#include "wwtestpkg.h" #include "wwtestpkg.h"
static int static char *
run6c(const char *src, char **out) codegen(const char *src)
{ {
char path[64]; Arena *a = newarena();
snprintf(path, sizeof path, "/tmp/wwt_%d.ww", getpid()); char *wrapped = wwtest_wrap(src);
FILE *f = fopen(path, "wb"); Lex l;
if (f == NULL) return -1; Parser p;
wwtest_fputs(src, f); Checker c;
fclose(f); Cg cg;
char cmd[256]; lexinit(&l, a, "<test>", wrapped, strlen(wrapped));
const char *bin = getenv("BIN"); parserinit(&p, a, &l);
if (!bin) bin = "out/bin"; Node *file = parsefile(&p);
snprintf(cmd, sizeof cmd, "%s/w6c %s 2>&1", bin, path); if (l.errs || p.errs)
FILE *p = popen(cmd, "r"); goto fail;
if (p == NULL) { unlink(path); return -1; } check_init(&c, a);
size_t cap = 4096, n = 0; check_file(&c, file);
char *buf = malloc(cap); if (c.errs)
int c; goto fail;
while ((c = fgetc(p)) != EOF) {
if (n + 1 >= cap) { cap *= 2; buf = realloc(buf, cap); } char *out = NULL;
buf[n++] = (char)c; size_t outlen = 0;
FILE *f = open_memstream(&out, &outlen);
if (f == NULL)
goto fail;
cg_init(&cg, a);
cg_file(&cg, f, file);
if (fclose(f) != 0) {
free(out);
out = NULL;
} }
buf[n] = '\0'; free(wrapped);
int rc = pclose(p); freearena(a);
unlink(path); return out;
*out = buf;
return rc; fail:
free(wrapped);
freearena(a);
return NULL;
} }
static int struct row {
contains(const char *hay, const char *needle) const char *src;
{ const char *needle[3];
return strstr(hay, needle) != NULL; };
}
struct row { const char *src; const char *needle; };
static const struct row rows[] = { static const struct row rows[] = {
{ "fn main() i32 = { return 42; };", "MOVQ\t$42, AX" }, { "fn main() i32 = { return 42; };", { "MOVQ\t$42, AX", "RET" } },
{ "fn main() i32 = { return 42; };", "RET" }, { "fn id(x: i32) i32 = { return x; };", { "MOVQ\tDI, -8(BP)" } },
{ "fn id(x: i32) i32 = { return x; };","MOVQ\tDI, -8(BP)" }, { "fn add(a: i32, b: i32) i32 = { return a + b; };", { "ADDQ\tBX, AX" } },
{ "fn add(a: i32, b: i32) i32 = { return a + b; };", "ADDQ\tBX, AX" }, { "fn sub(a: i32, b: i32) i32 = { return a - b; };", { "SUBQ\tBX, AX" } },
{ "fn sub(a: i32, b: i32) i32 = { return a - b; };", "SUBQ\tBX, AX" }, { "fn mul(a: i32, b: i32) i32 = { return a * b; };", { "IMULQ\tBX, AX" } },
{ "fn mul(a: i32, b: i32) i32 = { return a * b; };", "IMULQ\tBX, AX" }, { "fn neg(x: i32) i32 = { return -x; };", { "NEGQ\tAX" } },
{ "fn neg(x: i32) i32 = { return -x; };", "NEGQ\tAX" }, { "fn cmp(a: i32, b: i32) bool = { return a == b; };",
{ "fn cmp(a: i32, b: i32) bool = { return a == b; };", "CMPQ\tBX, AX" }, { "CMPQ\tBX, AX", "JE" } },
{ "fn cmp(a: i32, b: i32) bool = { return a == b; };", "JE" },
{ "fn cond(x: i32) i32 = { if (x > 0) { return 1; }; return 0; };", { "fn cond(x: i32) i32 = { if (x > 0) { return 1; }; return 0; };",
"CMPQ\t$0, AX" }, { "CMPQ\t$0, AX" } },
{ "fn lo() void = { for (let i: i32 = 0; i < 10; i += 1) { }; };", "JMP" }, { "fn lo() void = { for (let i: i32 = 0; i < 10; i += 1) { }; };",
{ "fn callit() i32 = { return 1; };", "TEXT main.callit,$0" }, { "JMP" } },
{ "fn callit() i32 = { return 1; };", { "TEXT main.callit,$0" } },
}; };
int int
main(void) main(void)
{ {
int n = sizeof rows / sizeof rows[0]; int n = sizeof rows / sizeof rows[0];
int nfrag = 0;
int fail = 0; int fail = 0;
for (int i = 0; i < n; i++) { for (int i = 0; i < n; i++) {
char *out = NULL; int want = 0;
int rc = run6c(rows[i].src, &out); while (want < 3 && rows[i].needle[want] != NULL)
if (rc != 0) { want++;
fprintf(stderr, "row %d: w6c rc=%d\n", i, rc); nfrag += want;
fail++; char *out = codegen(rows[i].src);
free(out); if (out == NULL) {
fprintf(stderr, "row %d: frontend/codegen failed\n", i);
fail += want;
continue; continue;
} }
if (!contains(out, rows[i].needle)) { for (int j = 0; j < want; j++) {
if (strstr(out, rows[i].needle[j]) != NULL)
continue;
fprintf(stderr, "row %d: missing '%s' in:\n%s\n", fprintf(stderr, "row %d: missing '%s' in:\n%s\n",
i, rows[i].needle, out); i, rows[i].needle[j], out);
fail++; fail++;
} }
free(out); free(out);
} }
if (fail) { fprintf(stderr, "%d/%d w6c tests failed\n", fail, n); return 1; } if (fail) {
printf("w6c: %d/%d ok\n", n, n); fprintf(stderr, "%d/%d w6c fragments failed\n", fail, nfrag);
return 1;
}
printf("w6c: %d/%d fragments ok in %d sources\n", nfrag, nfrag, n);
return 0; return 0;
} }