From 3e13e3330aa1780d7610354417c596e2ca9c5fe9 Mon Sep 17 00:00:00 2001
From: George Hotz <geohot@gmail.com>
Date: Wed, 22 Jun 2022 08:20:29 -0700
Subject: [PATCH] UNSAFE_FLOAT4 env

---
 accel/opencl/ops_opencl.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/accel/opencl/ops_opencl.py b/accel/opencl/ops_opencl.py
index e00cc1d3f6..7e5be3e43b 100644
--- a/accel/opencl/ops_opencl.py
+++ b/accel/opencl/ops_opencl.py
@@ -133,7 +133,7 @@ class OpenCLBuffer(GPUBuffer):
         ewtypes.append(f"__global const float4 *{name}_g")
         getters.append(f"inline float4 get4_{name}(__global const float4 *x, const sampler_t smp, int2 loc, int gid) {{"+
           f"return x[gid/4]; }}")
-      elif False:
+      elif int(os.getenv("UNSAFE_FLOAT4", 0)):
         # use float4 indexed (HACK!)
         # TODO: work out when this is okay
         ewtypes.append(f"__global const float4 *{name}_g")