From 1cab7b97657b080a6849f4be1ead6aee284f442a Mon Sep 17 00:00:00 2001
From: "Richard C. Gobeille" <richard@voidpoint.com>
Date: Wed, 10 Jun 2020 08:07:27 -0700
Subject: [PATCH] engine: add divideu64()/divideu64_noinline()

---
 source/build/include/pragmas.h | 14 ++++++++++++++
 source/build/src/pragmas.cpp   |  1 +
 2 files changed, 15 insertions(+)

diff --git a/source/build/include/pragmas.h b/source/build/include/pragmas.h
index 1c320b7f8..0a32a13dd 100644
--- a/source/build/include/pragmas.h
+++ b/source/build/include/pragmas.h
@@ -49,6 +49,19 @@ skip:
     return libdivide::libdivide_u32_do(n, &udiv);
 }
 
+static inline uint64_t divideu64(uint64_t const n, uint64_t const d)
+{
+    static libdivide::libdivide_u64_t udiv;
+    static uint64_t lastd;
+
+    if (d == lastd)
+        goto skip;
+
+    udiv = libdivide::libdivide_u64_gen((lastd = d));
+skip:
+    return libdivide::libdivide_u64_do(n, &udiv);
+}
+
 static inline int64_t tabledivide64(int64_t const n, int64_t const d)
 {
     static libdivide::libdivide_s64_t sdiv;
@@ -78,6 +91,7 @@ skip:
 }
 
 extern uint32_t divideu32_noinline(uint32_t n, uint32_t d);
+extern uint64_t divideu64_noinline(uint64_t n, uint64_t d);
 extern int32_t tabledivide32_noinline(int32_t n, int32_t d);
 
 
diff --git a/source/build/src/pragmas.cpp b/source/build/src/pragmas.cpp
index 97608f66d..9685796a0 100644
--- a/source/build/src/pragmas.cpp
+++ b/source/build/src/pragmas.cpp
@@ -23,4 +23,5 @@ void initdivtables(void)
 }
 
 uint32_t divideu32_noinline(uint32_t n, uint32_t d) { return divideu32(n, d); }
+uint64_t divideu64_noinline(uint64_t n, uint64_t d) { return divideu64(n, d); }
 int32_t tabledivide32_noinline(int32_t n, int32_t d) { return tabledivide32(n, d); }