Update core.jl

fix reduce_min identity to use typemax(T) instead of typemax(Int64)

- For UInt32, typemax(UInt32) = 4294967295 fits in 32 bits
- typemax(Int64) = 9223372036854775807 does not fit and caused encoding error

Author: arhik

src/compiler/intrinsics/core.jl

@@ -702,7 +702,7 @@ reduce_identity(::Val{:mul}, dtype, ::Type{T}) where T <: Integer =
 reduce_identity(::Val{:min}, dtype, ::Type{T}) where T <: AbstractFloat =
     FloatIdentityOp(+Inf, dtype, T)
 reduce_identity(::Val{:min}, dtype, ::Type{T}) where T <: Integer =
-    IntegerIdentityOp(typemax(Int64), dtype, T, is_signed(T))  # Use max int as +Inf proxy
+    IntegerIdentityOp(typemax(T), dtype, T, is_signed(T))
 
 # AND identity: all bits set (x & -1 == x)
 reduce_identity(::Val{:and}, dtype, ::Type{T}) where T <: Integer =