From 7a345f6d3ea16569d17b43dce48d1c8a0c496862 Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Mon, 8 Feb 2021 13:39:05 +0100
Subject: Update Futhark kernel for new Futhark

---
 aberth/aberth_kernel.fut | 22 +++++++++++-----------
 aberth/futhark.pkg       |  4 ++--
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/aberth/aberth_kernel.fut b/aberth/aberth_kernel.fut
index 9d0c59e..f868ee5 100644
--- a/aberth/aberth_kernel.fut
+++ b/aberth/aberth_kernel.fut
@@ -7,29 +7,29 @@ module uniform_real = uniform_real_distribution f32 rand_engine
 module cplx = mk_complex f32
 type complex = cplx.complex
 
-let N = 22i32
+let N = 22i64
 let PolyN = N + 1
 
 type poly = [PolyN]f32
 
 -- First element of pair steps fastest
-let iota2 (n: i32) (m: i32): [](i32, i32) =
+let iota2 (n: i64) (m: i64): [](i64, i64) =
     flatten (map (\y -> map (\x -> (x, y)) (iota n)) (iota m))
 
-let evaln_c (p: poly) (nterms: i32) (pt: complex): complex =
+let evaln_c (p: poly) (nterms: i64) (pt: complex): complex =
     foldr (\coef accum -> cplx.mk_re coef cplx.+ pt cplx.* accum)
           (cplx.mk_re p[nterms-1]) (take (nterms - 1) p)
 
 let eval_c (p: poly) (pt: complex): complex = evaln_c p (length p) pt
 
-let evaln_d (p: poly) (nterms: i32) (pt: f32): f32 =
+let evaln_d (p: poly) (nterms: i64) (pt: f32): f32 =
     foldr (\coef accum -> coef + pt * accum)
           p[nterms-1] (take (nterms - 1) p)
 
 let eval_d (p: poly) (pt: f32): f32 = evaln_d p (length p) pt
 
 let derivative (p: poly): *poly = 
-    map2 (\i v -> f32.i32 (i32.bool (i != PolyN - 1) * (i + 1)) * v)
+    map2 (\i v -> f32.i64 (i64.bool (i != PolyN - 1) * (i + 1)) * v)
          (0..<PolyN) (rotate 1 p)
 
 -- Cauchy's bound: https://en.wikipedia.org/wiki/Geometrical_properties_of_polynomial_roots#Lagrange's_and_Cauchy's_bounds
@@ -57,7 +57,7 @@ module aberth = {
         in (rng, approx)
 
     let compute_bound_poly (p: poly): *poly =
-        map2 (\coef i -> f32.abs coef * f32.i32 (4 * i + 1)) p (0..<PolyN)
+        map2 (\coef i -> f32.abs coef * f32.i64 (4 * i + 1)) p (0..<PolyN)
 
     let initialise (p: *poly): *context =
         let deriv = derivative p
@@ -122,7 +122,7 @@ let next_derbyshire (p: *poly): *(bool, poly) =
 
 let derbyshire_at_index (index: i32): *poly =
     let bitfield = (index << 1) + 1
-    in tabulate PolyN (\i -> f32.i32 (i32.get_bit i bitfield * 2 - 1))
+    in tabulate PolyN (\i -> f32.i32 (i32.get_bit (i32.i64 i) bitfield * 2 - 1))
 
 
 let calc_index (value: f32) (left: f32) (right: f32) (steps: i32): i32 =
@@ -158,9 +158,9 @@ entry main_job
                     in map (point_index width height bottom_left top_right) pts)
                  (start_index ..< start_index + num_polys))
     let filtered = filter (\i -> i != -1) indices
-    in reduce_by_index (replicate (width * height) 0)
+    in reduce_by_index (replicate (i64.i32 width * i64.i32 height) 0)
                        (+) 0
-                       filtered
+                       (map i64.i32 filtered)
                        (map (const 1) filtered)
 
 entry main_all
@@ -168,6 +168,6 @@ entry main_all
         (left: f32) (top: f32) (right: f32) (bottom: f32)
         (seed: i32)
         : []i32 =
-    main_job 0 (1 << N) width height left top right bottom seed
+    main_job 0 (i32.i64 (1 << N)) width height left top right bottom seed
 
-entry get_N: i32 = N
+entry get_N: i32 = i32.i64 N
diff --git a/aberth/futhark.pkg b/aberth/futhark.pkg
index c136912..0525d23 100644
--- a/aberth/futhark.pkg
+++ b/aberth/futhark.pkg
@@ -1,4 +1,4 @@
 require {
-  github.com/diku-dk/complex 0.1.2 #790bf261a6a36a9454b55f3f8109ac5cb1f4bf6e
-  github.com/diku-dk/cpprandom 1.2.1 #869304710af3a023683d6670316d55dafd973c71
+  github.com/diku-dk/complex 0.1.3 #6de81e642afe53306e04c3b38d59b7296e2dc0c5
+  github.com/diku-dk/cpprandom 1.3.0 #68b67cb55242db59b79d94b5cdf961b2d654e698
 }
-- 
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