src/llvm_backend_const.cpp(412): Assertion Failure: sz >= max_count max_count: 7, sz: 4, written: 0, type int

[laytan]

On 32 bit targets (wasm32, arm32) the following code raises the assertion failure in the title of this issue:

package main

import "core:math"

main :: proc() {
	x := math.round_f64(1)
}

[laytan]

Looks like the constant math is acting as if the destination is int, which the value doesn't fit in on 32 bit so it asserts there
Doing this "fixes" it:

diff --git a/core/math/math.odin b/core/math/math.odin
index 3d0ab3c4e..1a76d5244 100644
--- a/core/math/math.odin
+++ b/core/math/math.odin
@@ -805,8 +805,8 @@ round_f64 :: proc "contextless" (x: f64) -> f64 {
             bits |= transmute(u64)f64(1)
         }
     } else if e < bias + shift {
-        half     :: 1 << (shift - 1)
-        mantissa :: (1 << shift) - 1
+        half     :: u64(1) << (shift - u64(1))
+        mantissa :: (u64(1) << shift) - u64(1)
         e -= bias
         bits += half >> e
         bits &~= mantissa >> e