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authorAnton Samokhvalov <pg83@yandex.ru>2022-02-10 16:45:15 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:45:15 +0300
commit72cb13b4aff9bc9cf22e49251bc8fd143f82538f (patch)
treeda2c34829458c7d4e74bdfbdf85dff449e9e7fb8 /contrib/libs/cxxsupp/builtins/muldi3.c
parent778e51ba091dc39e7b7fcab2b9cf4dbedfb6f2b5 (diff)
downloadydb-72cb13b4aff9bc9cf22e49251bc8fd143f82538f.tar.gz
Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/builtins/muldi3.c')
-rw-r--r--contrib/libs/cxxsupp/builtins/muldi3.c112
1 files changed, 56 insertions, 56 deletions
diff --git a/contrib/libs/cxxsupp/builtins/muldi3.c b/contrib/libs/cxxsupp/builtins/muldi3.c
index 2dae44c11b..9beacb33b2 100644
--- a/contrib/libs/cxxsupp/builtins/muldi3.c
+++ b/contrib/libs/cxxsupp/builtins/muldi3.c
@@ -1,56 +1,56 @@
-/* ===-- muldi3.c - Implement __muldi3 -------------------------------------===
- *
- * The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===----------------------------------------------------------------------===
- *
- * This file implements __muldi3 for the compiler_rt library.
- *
- * ===----------------------------------------------------------------------===
- */
-
-#include "int_lib.h"
-
-/* Returns: a * b */
-
-static
-di_int
-__muldsi3(su_int a, su_int b)
-{
- dwords r;
- const int bits_in_word_2 = (int)(sizeof(si_int) * CHAR_BIT) / 2;
- const su_int lower_mask = (su_int)~0 >> bits_in_word_2;
- r.s.low = (a & lower_mask) * (b & lower_mask);
- su_int t = r.s.low >> bits_in_word_2;
- r.s.low &= lower_mask;
- t += (a >> bits_in_word_2) * (b & lower_mask);
- r.s.low += (t & lower_mask) << bits_in_word_2;
- r.s.high = t >> bits_in_word_2;
- t = r.s.low >> bits_in_word_2;
- r.s.low &= lower_mask;
- t += (b >> bits_in_word_2) * (a & lower_mask);
- r.s.low += (t & lower_mask) << bits_in_word_2;
- r.s.high += t >> bits_in_word_2;
- r.s.high += (a >> bits_in_word_2) * (b >> bits_in_word_2);
- return r.all;
-}
-
-/* Returns: a * b */
-
-ARM_EABI_FNALIAS(lmul, muldi3)
-
-COMPILER_RT_ABI di_int
-__muldi3(di_int a, di_int b)
-{
- dwords x;
- x.all = a;
- dwords y;
- y.all = b;
- dwords r;
- r.all = __muldsi3(x.s.low, y.s.low);
- r.s.high += x.s.high * y.s.low + x.s.low * y.s.high;
- return r.all;
-}
+/* ===-- muldi3.c - Implement __muldi3 -------------------------------------===
+ *
+ * The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file implements __muldi3 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#include "int_lib.h"
+
+/* Returns: a * b */
+
+static
+di_int
+__muldsi3(su_int a, su_int b)
+{
+ dwords r;
+ const int bits_in_word_2 = (int)(sizeof(si_int) * CHAR_BIT) / 2;
+ const su_int lower_mask = (su_int)~0 >> bits_in_word_2;
+ r.s.low = (a & lower_mask) * (b & lower_mask);
+ su_int t = r.s.low >> bits_in_word_2;
+ r.s.low &= lower_mask;
+ t += (a >> bits_in_word_2) * (b & lower_mask);
+ r.s.low += (t & lower_mask) << bits_in_word_2;
+ r.s.high = t >> bits_in_word_2;
+ t = r.s.low >> bits_in_word_2;
+ r.s.low &= lower_mask;
+ t += (b >> bits_in_word_2) * (a & lower_mask);
+ r.s.low += (t & lower_mask) << bits_in_word_2;
+ r.s.high += t >> bits_in_word_2;
+ r.s.high += (a >> bits_in_word_2) * (b >> bits_in_word_2);
+ return r.all;
+}
+
+/* Returns: a * b */
+
+ARM_EABI_FNALIAS(lmul, muldi3)
+
+COMPILER_RT_ABI di_int
+__muldi3(di_int a, di_int b)
+{
+ dwords x;
+ x.all = a;
+ dwords y;
+ y.all = b;
+ dwords r;
+ r.all = __muldsi3(x.s.low, y.s.low);
+ r.s.high += x.s.high * y.s.low + x.s.low * y.s.high;
+ return r.all;
+}