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From: Yinyu Cai <caiyinyu@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] longlong.h: update from GCC for LoongArch clz/ctz support Date: Fri, 28 Oct 2022 07:03:25 +0000 (GMT) [thread overview] Message-ID: <20221028070325.2A8183858C66@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=37db2657c92da3bc50128feed53b3f58739a9b19 commit 37db2657c92da3bc50128feed53b3f58739a9b19 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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