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feat(windows): a Windows target for ludicc, and the compiler builds itself there

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--target <triple> (default: the host, from OS=Windows_NT) selects the Windows
runtime. emit_win.ludic defines the POSIX names the backend already calls over
the UCRT and Win32 in IR, so rename replaces an existing file, ftell is 64-bit,
and fopen is binary. Known folders follow %APPDATA% / %LOCALAPPDATA% / %TEMP%,
and the driver speaks cmd.exe, writes .exe outputs and finds LLVM's clang.

Verified: macOS three-stage fixpoint, ludic-dev test 135/135, and on Windows
the Mac-emitted Windows IR and the Windows-built compiler's IR are identical
through two generations.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-13 01:59:41 +03:00
parent 572e09b2b1
commit 5801005fca
15 changed files with 23292 additions and 21806 deletions
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4
selfhost/backend/emit_call.ludic
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@ -1119,7 +1119,7 @@ function emit_call(e: Node) -> Val {
g_uses_panic = true
let m = emit_expr(e.kids[0])
let prefix = emit_str_const(`{g_src_name}:{itoa(e.line)}: panic: `)
let se = emit_bind("load ptr, ptr @__stderrp")
let se = emit_bind(stdstream_rhs(2))
emit(` call i32 (ptr, ptr, ...) @fprintf(ptr {se}, ptr @.fmt_panic, ptr {prefix}, ptr {m.code})\n`)
emit(" call void @exit(i32 1)\n unreachable\n")
g_term = true
@ -1134,7 +1134,7 @@ function emit_call(e: Node) -> Val {
emit(`{lbad}:\n`)
let m = emit_expr(e.kids[1])
let prefix = emit_str_const(`{g_src_name}:{itoa(e.line)}: assertion failed: `)
let se = emit_bind("load ptr, ptr @__stderrp")
let se = emit_bind(stdstream_rhs(2))
emit(` call i32 (ptr, ptr, ...) @fprintf(ptr {se}, ptr @.fmt_panic, ptr {prefix}, ptr {m.code})\n`)
emit(" call void @exit(i32 1)\n unreachable\n")
emit(`{lok}:\n`)