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* [glibc/arm/morello/main] longlong.h: update from GCC for LoongArch clz/ctz support
@ 2022-11-23 14:37 Szabolcs Nagy
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From: Szabolcs Nagy @ 2022-11-23 14:37 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4c6a78addabbd6e1b69763e286768919e56dfe0a
commit 4c6a78addabbd6e1b69763e286768919e56dfe0a
Author: Xi Ruoyao <xry111@xry111.site>
Date: Sat Oct 15 14:12:13 2022 +0800
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:
---
stdlib/longlong.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/stdlib/longlong.h b/stdlib/longlong.h
index 9b89469ac2..d8f76a43b5 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. */ \
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2022-11-23 14:37 [glibc/arm/morello/main] longlong.h: update from GCC for LoongArch clz/ctz support Szabolcs Nagy
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