From 4c6a78addabbd6e1b69763e286768919e56dfe0a Mon Sep 17 00:00:00 2001 From: Xi Ruoyao Date: Sat, 15 Oct 2022 14:12:13 +0800 Subject: 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 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. */ \ -- cgit v1.2.1