From 0fb27cd9c8cdf7be4e8117359c59c69577d6c956 Mon Sep 17 00:00:00 2001
From: Isuru Fernando <isuruf@gmail.com>
Date: Mon, 3 Oct 2022 21:55:59 -0500
Subject: [PATCH] Fix bitlog2 for LLP systems (win)
---
src/bitlog.hpp | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/bitlog.hpp b/src/bitlog.hpp
index 5d2e398b..c002fc39 100644
--- a/src/bitlog.hpp
+++ b/src/bitlog.hpp
@@ -55,6 +55,15 @@ namespace pyopencl
return bitlog2_16(v);
}
+#if defined(UINT64_MAX)
+ inline unsigned bitlog2(uint64_t v)
+ {
+ if (uint32_t t = v >> 32)
+ return 32+bitlog2_32(t);
+ else
+ return bitlog2_32(v);
+ }
+#else
inline unsigned bitlog2(unsigned long v)
{
#if (ULONG_MAX != 4294967295)
@@ -64,6 +73,7 @@ namespace pyopencl
#endif
return bitlog2_32(v);
}
+#endif
}
--
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