From 4c6a78addabbd6e1b69763e286768919e56dfe0a Mon Sep 17 00:00:00 2001
From: Xi Ruoyao <xry111@xry111.site>
Date: Sat, 15 Oct 2022 14:12:13 +0800
Subject: [PATCH 166/171] longlong.h: update from GCC for LoongArch clz/ctz
 support

Update longlong.h to GCC r13-3269.  Keep our local change (prefer https
for gnu.org URL).
---
 stdlib/longlong.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/stdlib/longlong.h b/stdlib/longlong.h
index 9b89469ac21e..d8f76a43b50f 100644
--- a/stdlib/longlong.h
+++ b/stdlib/longlong.h
@@ -593,6 +593,18 @@ extern UDItype __umulsidi3 (USItype, USItype);
 #define UMUL_TIME 14
 #endif
 
+#ifdef __loongarch__
+# if W_TYPE_SIZE == 32
+#  define count_leading_zeros(count, x)  ((count) = __builtin_clz (x))
+#  define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
+#  define COUNT_LEADING_ZEROS_0 32
+# elif W_TYPE_SIZE == 64
+#  define count_leading_zeros(count, x)  ((count) = __builtin_clzll (x))
+#  define count_trailing_zeros(count, x) ((count) = __builtin_ctzll (x))
+#  define COUNT_LEADING_ZEROS_0 64
+# endif
+#endif
+
 #if defined (__M32R__) && W_TYPE_SIZE == 32
 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
   /* The cmp clears the condition bit.  */ \
-- 
2.38.1