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feat(lang): float and double types with ordinary operators

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`float` (32-bit) and `double` (64-bit) with + - * / %, comparisons and unary minus.
Decimal literals take their type from context and stay `fixed` elsewhere; int and long
promote implicitly (LUDIC_WARN_FLOAT_PROMOTE=1 lists every promotion). float(), double(),
int(), long() and fixed() convert; floats(n)/doubles(n) buffers; float fields, globals,
constants and parameters; Math.* computes in float for float arguments; string/print
write the shortest round-tripping decimal; float_bits/float_from_bits expose the bits.
@deterministic code may not use floats. The f_* runtime helpers stay as they are.

Editors know the new type words; the JetBrains plugin is 1.5.0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-16 16:02:03 +03:00
parent f92d7f89c6
commit e010c2cecc
40 changed files with 67726 additions and 57272 deletions
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7
selfhost/backend/emit_new.ludic
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@ -36,11 +36,10 @@ function emit_new_struct(name: pointer, rec: Node) -> Val {
emit(" "); emit(addr); emit(" = getelementptr inbounds "); emit(lty)
emit(", ptr "); emit(obj); emit(", i32 0, i32 "); emit(itoa(f)); emit("\n")
let lt = llty(fd.ty)
var v = "0"
if (lt == "ptr") { v = "null" }
if (fd.a != null) { let dv = emit_expr(fd.a); v = dv.code }
var v = zero_of(lt)
if (fd.a != null) { let dv = emit_expr(fd.a); v = coerce_code(dv, fd.ty) }
let ov = rec_field(rec, fd.s) # explicit override wins over the default
if (ov != null) { let dv = emit_expr(ov); v = dv.code }
if (ov != null) { let dv = emit_expr(ov); v = coerce_code(dv, fd.ty) }
emit(" store "); emit(lt); emit(" "); emit(v); emit(", ptr "); emit(addr); emit("\n")
f += 1
}