38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
From 4c6a78addabbd6e1b69763e286768919e56dfe0a Mon Sep 17 00:00:00 2001
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From: Xi Ruoyao <xry111@xry111.site>
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Date: Sat, 15 Oct 2022 14:12:13 +0800
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Subject: [PATCH 67/81] longlong.h: update from GCC for LoongArch clz/ctz
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support
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Update longlong.h to GCC r13-3269. Keep our local change (prefer https
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for gnu.org URL).
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---
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stdlib/longlong.h | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/stdlib/longlong.h b/stdlib/longlong.h
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index 9b89469ac2..d8f76a43b5 100644
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--- a/stdlib/longlong.h
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+++ b/stdlib/longlong.h
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@@ -593,6 +593,18 @@ extern UDItype __umulsidi3 (USItype, USItype);
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#define UMUL_TIME 14
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#endif
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+#ifdef __loongarch__
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+# if W_TYPE_SIZE == 32
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+# define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
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+# define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
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+# define COUNT_LEADING_ZEROS_0 32
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+# elif W_TYPE_SIZE == 64
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+# define count_leading_zeros(count, x) ((count) = __builtin_clzll (x))
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+# define count_trailing_zeros(count, x) ((count) = __builtin_ctzll (x))
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+# define COUNT_LEADING_ZEROS_0 64
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+# endif
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+#endif
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+
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#if defined (__M32R__) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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/* The cmp clears the condition bit. */ \
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--
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2.19.1.6.gb485710b
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