From 0075e3fb045e5be253d860ca71dcab2b32476f38 Mon Sep 17 00:00:00 2001
From: Folkert <folkert@folkertdev.nl>
Date: Thu, 19 Mar 2020 14:25:37 +0100
Subject: [PATCH] attempt at float switches

needs something more , will circle back later
---
 compiler/gen/src/llvm/build.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/compiler/gen/src/llvm/build.rs b/compiler/gen/src/llvm/build.rs
index 8c69734f4d..cc792dbc35 100644
--- a/compiler/gen/src/llvm/build.rs
+++ b/compiler/gen/src/llvm/build.rs
@@ -670,7 +670,13 @@ fn build_switch<'a, 'ctx, 'env>(
 
     // Build the condition
     let cond = match cond_layout {
-        Layout::Builtin(_) => build_expr(env, scope, parent, cond_expr, procs).into_int_value(),
+        Layout::Builtin(Builtin::Float64) => {
+            // float matches are done on the bit pattern
+            cond_layout = Layout::Builtin(Builtin::Int64);
+            let full_cond = build_expr(env, scope, parent, cond_expr, procs);
+
+            cast_basic_basic(builder, full_cond, env.context.i64_type().into()).into_int_value()
+        }
         Layout::Union(_) => {
             // we match on the discriminant, not the whole Tag
             cond_layout = Layout::Builtin(Builtin::Int64);
@@ -678,6 +684,7 @@ fn build_switch<'a, 'ctx, 'env>(
 
             extract_tag_discriminant(env, full_cond)
         }
+        Layout::Builtin(_) => build_expr(env, scope, parent, cond_expr, procs).into_int_value(),
         other => todo!("Build switch value from layout: {:?}", other),
     };