From: Xi Ruoyao <xry111@xry111.site>
Date: Sat, 15 Oct 2022 06:12:13 +0000 (+0800)
Subject: longlong.h: update from GCC for LoongArch clz/ctz support
X-Git-Tag: glibc-2.37~216
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37db2657c92da3bc50128feed53b3f58739a9b19;p=thirdparty%2Fglibc.git

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).
---

diff --git a/stdlib/longlong.h b/stdlib/longlong.h
index 9b89469ac21..d8f76a43b50 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.  */ \