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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_addr.ludic
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@ -33,6 +33,13 @@ function emit_index_addr(e: Node) -> pointer {
g_addr_ty = "fixed"
return rf
}
if (base.ty == "floats") or (base.ty == "doubles") { # IEEE float / double elements
var et = "float"
if (base.ty == "doubles") { et = "double" }
let rd = emit_bind(`getelementptr inbounds {et}, ptr {base.code}, i32 {bi.code}`)
g_addr_ty = et
return rd
}
if (base.ty == "pointers") { # a `pointers` buffer: pointer elements
let rp = emit_bind(`getelementptr inbounds ptr, ptr {base.code}, i32 {bi.code}`)
g_addr_ty = "ptr"