From 6fc6e3a51a29aa126ff63d5e7a8cf7f316e419c7 Mon Sep 17 00:00:00 2001 From: psychocrypt <psychocryptHPC@gmail.com> Date: Tue, 16 Oct 2018 16:19:48 +0200 Subject: [PATCH] fix AMD driver 14 Fix the fix from #1945. The initial fix produces invalid results. --- xmrstak/backend/amd/amd_gpu/opencl/fast_int_math_v2.cl | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/xmrstak/backend/amd/amd_gpu/opencl/fast_int_math_v2.cl b/xmrstak/backend/amd/amd_gpu/opencl/fast_int_math_v2.cl index 55768d3..1ef1dea 100644 --- a/xmrstak/backend/amd/amd_gpu/opencl/fast_int_math_v2.cl +++ b/xmrstak/backend/amd/amd_gpu/opencl/fast_int_math_v2.cl @@ -79,8 +79,10 @@ inline uint2 fast_div_v2(const __local uint *RCP, ulong a, uint b) * https://github.com/fireice-uk/xmr-stak/issues/1922 * This is a workaround for the broken compiler. */ - const long xx = k - a; - ((uint*)&q)[1] = (xx < 0) ? 1U : 0U; + ulong whyAMDwhy; + ((uint*)&whyAMDwhy)[0] = as_uint2(k).s0; + ((uint*)&whyAMDwhy)[1] = as_uint2(k).s1; + ((uint*)&q)[1] = (whyAMDwhy < a) ? 1U : 0U; #else ((uint*)&q)[1] = (k < a) ? 1U : 0U; #endif -- GitLab