Hojun-Cho
b2899dd8d3
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.
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
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* 400_w6c — in-process codegen smoke tests. Each row supplies one tiny ww
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* source and the assembly fragments it must emit. Full-file golden matches
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* would bind the test to unrelated output details.
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*/
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#include "gc.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "wwtestpkg.h"
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static char *
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codegen(const char *src)
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{
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Arena *a = newarena();
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char *wrapped = wwtest_wrap(src);
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Lex l;
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Parser p;
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Checker c;
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Cg cg;
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lexinit(&l, a, "<test>", wrapped, strlen(wrapped));
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parserinit(&p, a, &l);
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Node *file = parsefile(&p);
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if (l.errs || p.errs)
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goto fail;
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check_init(&c, a);
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check_file(&c, file);
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if (c.errs)
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goto fail;
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char *out = NULL;
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size_t outlen = 0;
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FILE *f = open_memstream(&out, &outlen);
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if (f == NULL)
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goto fail;
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cg_init(&cg, a);
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cg_file(&cg, f, file);
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if (fclose(f) != 0) {
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free(out);
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out = NULL;
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}
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free(wrapped);
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freearena(a);
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return out;
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fail:
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free(wrapped);
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freearena(a);
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return NULL;
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}
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struct row {
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const char *src;
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const char *needle[3];
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};
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static const struct row rows[] = {
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{ "fn main() i32 = { return 42; };", { "MOVQ\t$42, AX", "RET" } },
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{ "fn id(x: i32) i32 = { return x; };", { "MOVQ\tDI, -8(BP)" } },
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{ "fn add(a: i32, b: i32) i32 = { return a + b; };", { "ADDQ\tBX, AX" } },
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{ "fn sub(a: i32, b: i32) i32 = { return a - b; };", { "SUBQ\tBX, AX" } },
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{ "fn mul(a: i32, b: i32) i32 = { return a * b; };", { "IMULQ\tBX, AX" } },
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{ "fn neg(x: i32) i32 = { return -x; };", { "NEGQ\tAX" } },
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{ "fn cmp(a: i32, b: i32) bool = { return a == b; };",
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{ "CMPQ\tBX, AX", "JE" } },
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{ "fn cond(x: i32) i32 = { if (x > 0) { return 1; }; return 0; };",
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{ "CMPQ\t$0, AX" } },
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{ "fn lo() void = { for (let i: i32 = 0; i < 10; i += 1) { }; };",
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{ "JMP" } },
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{ "fn callit() i32 = { return 1; };", { "TEXT main.callit,$0" } },
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};
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int
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main(void)
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{
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int n = sizeof rows / sizeof rows[0];
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int nfrag = 0;
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int fail = 0;
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for (int i = 0; i < n; i++) {
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int want = 0;
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while (want < 3 && rows[i].needle[want] != NULL)
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want++;
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nfrag += want;
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char *out = codegen(rows[i].src);
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if (out == NULL) {
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fprintf(stderr, "row %d: frontend/codegen failed\n", i);
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fail += want;
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continue;
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}
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for (int j = 0; j < want; j++) {
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if (strstr(out, rows[i].needle[j]) != NULL)
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continue;
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fprintf(stderr, "row %d: missing '%s' in:\n%s\n",
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i, rows[i].needle[j], out);
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fail++;
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}
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free(out);
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}
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if (fail) {
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fprintf(stderr, "%d/%d w6c fragments failed\n", fail, nfrag);
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return 1;
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}
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printf("w6c: %d/%d fragments ok in %d sources\n", nfrag, nfrag, n);
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return 0;
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}
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