Restoring authorship annotation for Anton Samokhvalov <[email protected]>. Commit 1 of 2.

1 files changed, 107 insertions, 107 deletions

diff --git a/contrib/libs/cxxsupp/builtins/floatdidf.c b/contrib/libs/cxxsupp/builtins/floatdidf.c
index a300c9f312d..00aa9138adc 100644
--- a/contrib/libs/cxxsupp/builtins/floatdidf.c
+++ b/contrib/libs/cxxsupp/builtins/floatdidf.c
@@ -1,107 +1,107 @@
-/*===-- floatdidf.c - Implement __floatdidf -------------------------------===
- *
- *                     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 __floatdidf for the compiler_rt library.
- *
- *===----------------------------------------------------------------------===
- */
-
-#include "int_lib.h"
-
-/* Returns: convert a to a double, rounding toward even. */
-
-/* Assumption: double is a IEEE 64 bit floating point type 
- *             di_int is a 64 bit integral type
- */
-
-/* seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm */
-
-ARM_EABI_FNALIAS(l2d, floatdidf)
-
-#ifndef __SOFT_FP__
-/* Support for systems that have hardware floating-point; we'll set the inexact flag
- * as a side-effect of this computation.
- */
-
-COMPILER_RT_ABI double
-__floatdidf(di_int a)
-{
-	static const double twop52 = 4503599627370496.0; // 0x1.0p52
-	static const double twop32 = 4294967296.0; // 0x1.0p32
-	
-	union { int64_t x; double d; } low = { .d = twop52 };
-	
-	const double high = (int32_t)(a >> 32) * twop32;
-	low.x |= a & INT64_C(0x00000000ffffffff);
-	
-	const double result = (high - twop52) + low.d;
-	return result;
-}
-
-#else
-/* Support for systems that don't have hardware floating-point; there are no flags to
- * set, and we don't want to code-gen to an unknown soft-float implementation.
- */
-
-COMPILER_RT_ABI double
-__floatdidf(di_int a)
-{
-    if (a == 0)
-        return 0.0;
-    const unsigned N = sizeof(di_int) * CHAR_BIT;
-    const di_int s = a >> (N-1);
-    a = (a ^ s) - s;
-    int sd = N - __builtin_clzll(a);  /* number of significant digits */
-    int e = sd - 1;             /* exponent */
-    if (sd > DBL_MANT_DIG)
-    {
-        /*  start:  0000000000000000000001xxxxxxxxxxxxxxxxxxxxxxPQxxxxxxxxxxxxxxxxxx
-         *  finish: 000000000000000000000000000000000000001xxxxxxxxxxxxxxxxxxxxxxPQR
-         *                                                12345678901234567890123456
-         *  1 = msb 1 bit
-         *  P = bit DBL_MANT_DIG-1 bits to the right of 1
-         * Q = bit DBL_MANT_DIG bits to the right of 1
-         *  R = "or" of all bits to the right of Q
-        */
-        switch (sd)
-        {
-        case DBL_MANT_DIG + 1:
-            a <<= 1;
-            break;
-        case DBL_MANT_DIG + 2:
-            break;
-        default:
-            a = ((du_int)a >> (sd - (DBL_MANT_DIG+2))) |
-                ((a & ((du_int)(-1) >> ((N + DBL_MANT_DIG+2) - sd))) != 0);
-        };
-        /* finish: */
-        a |= (a & 4) != 0;  /* Or P into R */
-        ++a;  /* round - this step may add a significant bit */
-        a >>= 2;  /* dump Q and R */
-        /* a is now rounded to DBL_MANT_DIG or DBL_MANT_DIG+1 bits */
-        if (a & ((du_int)1 << DBL_MANT_DIG))
-        {
-            a >>= 1;
-            ++e;
-        }
-        /* a is now rounded to DBL_MANT_DIG bits */
-    }
-    else
-    {
-        a <<= (DBL_MANT_DIG - sd);
-        /* a is now rounded to DBL_MANT_DIG bits */
-    }
-    double_bits fb;
-    fb.u.high = ((su_int)s & 0x80000000) |        /* sign */
-                ((e + 1023) << 20)      |        /* exponent */
-                ((su_int)(a >> 32) & 0x000FFFFF); /* mantissa-high */
-    fb.u.low = (su_int)a;                         /* mantissa-low */
-    return fb.f;
-}
-#endif
+/*===-- floatdidf.c - Implement __floatdidf -------------------------------=== 
+ * 
+ *                     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 __floatdidf for the compiler_rt library. 
+ * 
+ *===----------------------------------------------------------------------=== 
+ */ 
+ 
+#include "int_lib.h" 
+ 
+/* Returns: convert a to a double, rounding toward even. */ 
+ 
+/* Assumption: double is a IEEE 64 bit floating point type  
+ *             di_int is a 64 bit integral type 
+ */ 
+ 
+/* seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm */ 
+ 
+ARM_EABI_FNALIAS(l2d, floatdidf) 
+ 
+#ifndef __SOFT_FP__ 
+/* Support for systems that have hardware floating-point; we'll set the inexact flag 
+ * as a side-effect of this computation. 
+ */ 
+ 
+COMPILER_RT_ABI double 
+__floatdidf(di_int a) 
+{ 
+	static const double twop52 = 4503599627370496.0; // 0x1.0p52 
+	static const double twop32 = 4294967296.0; // 0x1.0p32 
+	 
+	union { int64_t x; double d; } low = { .d = twop52 }; 
+	 
+	const double high = (int32_t)(a >> 32) * twop32; 
+	low.x |= a & INT64_C(0x00000000ffffffff); 
+	 
+	const double result = (high - twop52) + low.d; 
+	return result; 
+} 
+ 
+#else 
+/* Support for systems that don't have hardware floating-point; there are no flags to 
+ * set, and we don't want to code-gen to an unknown soft-float implementation. 
+ */ 
+ 
+COMPILER_RT_ABI double 
+__floatdidf(di_int a) 
+{ 
+    if (a == 0) 
+        return 0.0; 
+    const unsigned N = sizeof(di_int) * CHAR_BIT; 
+    const di_int s = a >> (N-1); 
+    a = (a ^ s) - s; 
+    int sd = N - __builtin_clzll(a);  /* number of significant digits */ 
+    int e = sd - 1;             /* exponent */ 
+    if (sd > DBL_MANT_DIG) 
+    { 
+        /*  start:  0000000000000000000001xxxxxxxxxxxxxxxxxxxxxxPQxxxxxxxxxxxxxxxxxx 
+         *  finish: 000000000000000000000000000000000000001xxxxxxxxxxxxxxxxxxxxxxPQR 
+         *                                                12345678901234567890123456 
+         *  1 = msb 1 bit 
+         *  P = bit DBL_MANT_DIG-1 bits to the right of 1 
+         * Q = bit DBL_MANT_DIG bits to the right of 1 
+         *  R = "or" of all bits to the right of Q 
+        */ 
+        switch (sd) 
+        { 
+        case DBL_MANT_DIG + 1: 
+            a <<= 1; 
+            break; 
+        case DBL_MANT_DIG + 2: 
+            break; 
+        default: 
+            a = ((du_int)a >> (sd - (DBL_MANT_DIG+2))) | 
+                ((a & ((du_int)(-1) >> ((N + DBL_MANT_DIG+2) - sd))) != 0); 
+        }; 
+        /* finish: */ 
+        a |= (a & 4) != 0;  /* Or P into R */ 
+        ++a;  /* round - this step may add a significant bit */ 
+        a >>= 2;  /* dump Q and R */ 
+        /* a is now rounded to DBL_MANT_DIG or DBL_MANT_DIG+1 bits */ 
+        if (a & ((du_int)1 << DBL_MANT_DIG)) 
+        { 
+            a >>= 1; 
+            ++e; 
+        } 
+        /* a is now rounded to DBL_MANT_DIG bits */ 
+    } 
+    else 
+    { 
+        a <<= (DBL_MANT_DIG - sd); 
+        /* a is now rounded to DBL_MANT_DIG bits */ 
+    } 
+    double_bits fb; 
+    fb.u.high = ((su_int)s & 0x80000000) |        /* sign */ 
+                ((e + 1023) << 20)      |        /* exponent */ 
+                ((su_int)(a >> 32) & 0x000FFFFF); /* mantissa-high */ 
+    fb.u.low = (su_int)a;                         /* mantissa-low */ 
+    return fb.f; 
+} 
+#endif