Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 1 of 2.

1 files changed, 108 insertions, 108 deletions

diff --git a/contrib/libs/cxxsupp/builtins/fp_extend_impl.inc b/contrib/libs/cxxsupp/builtins/fp_extend_impl.inc
index b785cc7687..6ef3338385 100644
--- a/contrib/libs/cxxsupp/builtins/fp_extend_impl.inc
+++ b/contrib/libs/cxxsupp/builtins/fp_extend_impl.inc
@@ -1,108 +1,108 @@
-//=-lib/fp_extend_impl.inc - low precision -> high precision conversion -*-- -//
-//
-//                     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 a fairly generic conversion from a narrower to a wider
-// IEEE-754 floating-point type.  The constants and types defined following the
-// includes below parameterize the conversion.
-//
-// It does not support types that don't use the usual IEEE-754 interchange
-// formats; specifically, some work would be needed to adapt it to
-// (for example) the Intel 80-bit format or PowerPC double-double format.
-//
-// Note please, however, that this implementation is only intended to support
-// *widening* operations; if you need to convert to a *narrower* floating-point
-// type (e.g. double -> float), then this routine will not do what you want it
-// to.
-//
-// It also requires that integer types at least as large as both formats
-// are available on the target platform; this may pose a problem when trying
-// to add support for quad on some 32-bit systems, for example.  You also may
-// run into trouble finding an appropriate CLZ function for wide source types;
-// you will likely need to roll your own on some platforms.
-//
-// Finally, the following assumptions are made:
-//
-// 1. floating-point types and integer types have the same endianness on the
-//    target platform
-//
-// 2. quiet NaNs, if supported, are indicated by the leading bit of the
-//    significand field being set
-//
-//===----------------------------------------------------------------------===//
-
-#include "fp_extend.h"
-
-static __inline dst_t __extendXfYf2__(src_t a) {
-    // Various constants whose values follow from the type parameters.
-    // Any reasonable optimizer will fold and propagate all of these.
-    const int srcBits = sizeof(src_t)*CHAR_BIT;
-    const int srcExpBits = srcBits - srcSigBits - 1;
-    const int srcInfExp = (1 << srcExpBits) - 1;
-    const int srcExpBias = srcInfExp >> 1;
-
-    const src_rep_t srcMinNormal = SRC_REP_C(1) << srcSigBits;
-    const src_rep_t srcInfinity = (src_rep_t)srcInfExp << srcSigBits;
-    const src_rep_t srcSignMask = SRC_REP_C(1) << (srcSigBits + srcExpBits);
-    const src_rep_t srcAbsMask = srcSignMask - 1;
-    const src_rep_t srcQNaN = SRC_REP_C(1) << (srcSigBits - 1);
-    const src_rep_t srcNaNCode = srcQNaN - 1;
-
-    const int dstBits = sizeof(dst_t)*CHAR_BIT;
-    const int dstExpBits = dstBits - dstSigBits - 1;
-    const int dstInfExp = (1 << dstExpBits) - 1;
-    const int dstExpBias = dstInfExp >> 1;
-
-    const dst_rep_t dstMinNormal = DST_REP_C(1) << dstSigBits;
-
-    // Break a into a sign and representation of the absolute value
-    const src_rep_t aRep = srcToRep(a);
-    const src_rep_t aAbs = aRep & srcAbsMask;
-    const src_rep_t sign = aRep & srcSignMask;
-    dst_rep_t absResult;
-
-    // If sizeof(src_rep_t) < sizeof(int), the subtraction result is promoted
-    // to (signed) int.  To avoid that, explicitly cast to src_rep_t.
-    if ((src_rep_t)(aAbs - srcMinNormal) < srcInfinity - srcMinNormal) {
-        // a is a normal number.
-        // Extend to the destination type by shifting the significand and
-        // exponent into the proper position and rebiasing the exponent.
-        absResult = (dst_rep_t)aAbs << (dstSigBits - srcSigBits);
-        absResult += (dst_rep_t)(dstExpBias - srcExpBias) << dstSigBits;
-    }
-
-    else if (aAbs >= srcInfinity) {
-        // a is NaN or infinity.
-        // Conjure the result by beginning with infinity, then setting the qNaN
-        // bit (if needed) and right-aligning the rest of the trailing NaN
-        // payload field.
-        absResult = (dst_rep_t)dstInfExp << dstSigBits;
-        absResult |= (dst_rep_t)(aAbs & srcQNaN) << (dstSigBits - srcSigBits);
-        absResult |= (dst_rep_t)(aAbs & srcNaNCode) << (dstSigBits - srcSigBits);
-    }
-
-    else if (aAbs) {
-        // a is denormal.
-        // renormalize the significand and clear the leading bit, then insert
-        // the correct adjusted exponent in the destination type.
-        const int scale = src_rep_t_clz(aAbs) - src_rep_t_clz(srcMinNormal);
-        absResult = (dst_rep_t)aAbs << (dstSigBits - srcSigBits + scale);
-        absResult ^= dstMinNormal;
-        const int resultExponent = dstExpBias - srcExpBias - scale + 1;
-        absResult |= (dst_rep_t)resultExponent << dstSigBits;
-    }
-
-    else {
-        // a is zero.
-        absResult = 0;
-    }
-
-    // Apply the signbit to (dst_t)abs(a).
-    const dst_rep_t result = absResult | (dst_rep_t)sign << (dstBits - srcBits);
-    return dstFromRep(result);
-}
+//=-lib/fp_extend_impl.inc - low precision -> high precision conversion -*-- -// 
+// 
+//                     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 a fairly generic conversion from a narrower to a wider 
+// IEEE-754 floating-point type.  The constants and types defined following the 
+// includes below parameterize the conversion. 
+// 
+// It does not support types that don't use the usual IEEE-754 interchange 
+// formats; specifically, some work would be needed to adapt it to 
+// (for example) the Intel 80-bit format or PowerPC double-double format. 
+// 
+// Note please, however, that this implementation is only intended to support 
+// *widening* operations; if you need to convert to a *narrower* floating-point 
+// type (e.g. double -> float), then this routine will not do what you want it 
+// to. 
+// 
+// It also requires that integer types at least as large as both formats 
+// are available on the target platform; this may pose a problem when trying 
+// to add support for quad on some 32-bit systems, for example.  You also may 
+// run into trouble finding an appropriate CLZ function for wide source types; 
+// you will likely need to roll your own on some platforms. 
+// 
+// Finally, the following assumptions are made: 
+// 
+// 1. floating-point types and integer types have the same endianness on the 
+//    target platform 
+// 
+// 2. quiet NaNs, if supported, are indicated by the leading bit of the 
+//    significand field being set 
+// 
+//===----------------------------------------------------------------------===// 
+ 
+#include "fp_extend.h" 
+ 
+static __inline dst_t __extendXfYf2__(src_t a) { 
+    // Various constants whose values follow from the type parameters. 
+    // Any reasonable optimizer will fold and propagate all of these. 
+    const int srcBits = sizeof(src_t)*CHAR_BIT; 
+    const int srcExpBits = srcBits - srcSigBits - 1; 
+    const int srcInfExp = (1 << srcExpBits) - 1; 
+    const int srcExpBias = srcInfExp >> 1; 
+ 
+    const src_rep_t srcMinNormal = SRC_REP_C(1) << srcSigBits; 
+    const src_rep_t srcInfinity = (src_rep_t)srcInfExp << srcSigBits; 
+    const src_rep_t srcSignMask = SRC_REP_C(1) << (srcSigBits + srcExpBits); 
+    const src_rep_t srcAbsMask = srcSignMask - 1; 
+    const src_rep_t srcQNaN = SRC_REP_C(1) << (srcSigBits - 1); 
+    const src_rep_t srcNaNCode = srcQNaN - 1; 
+ 
+    const int dstBits = sizeof(dst_t)*CHAR_BIT; 
+    const int dstExpBits = dstBits - dstSigBits - 1; 
+    const int dstInfExp = (1 << dstExpBits) - 1; 
+    const int dstExpBias = dstInfExp >> 1; 
+ 
+    const dst_rep_t dstMinNormal = DST_REP_C(1) << dstSigBits; 
+ 
+    // Break a into a sign and representation of the absolute value 
+    const src_rep_t aRep = srcToRep(a); 
+    const src_rep_t aAbs = aRep & srcAbsMask; 
+    const src_rep_t sign = aRep & srcSignMask; 
+    dst_rep_t absResult; 
+ 
+    // If sizeof(src_rep_t) < sizeof(int), the subtraction result is promoted 
+    // to (signed) int.  To avoid that, explicitly cast to src_rep_t. 
+    if ((src_rep_t)(aAbs - srcMinNormal) < srcInfinity - srcMinNormal) { 
+        // a is a normal number. 
+        // Extend to the destination type by shifting the significand and 
+        // exponent into the proper position and rebiasing the exponent. 
+        absResult = (dst_rep_t)aAbs << (dstSigBits - srcSigBits); 
+        absResult += (dst_rep_t)(dstExpBias - srcExpBias) << dstSigBits; 
+    } 
+ 
+    else if (aAbs >= srcInfinity) { 
+        // a is NaN or infinity. 
+        // Conjure the result by beginning with infinity, then setting the qNaN 
+        // bit (if needed) and right-aligning the rest of the trailing NaN 
+        // payload field. 
+        absResult = (dst_rep_t)dstInfExp << dstSigBits; 
+        absResult |= (dst_rep_t)(aAbs & srcQNaN) << (dstSigBits - srcSigBits); 
+        absResult |= (dst_rep_t)(aAbs & srcNaNCode) << (dstSigBits - srcSigBits); 
+    } 
+ 
+    else if (aAbs) { 
+        // a is denormal. 
+        // renormalize the significand and clear the leading bit, then insert 
+        // the correct adjusted exponent in the destination type. 
+        const int scale = src_rep_t_clz(aAbs) - src_rep_t_clz(srcMinNormal); 
+        absResult = (dst_rep_t)aAbs << (dstSigBits - srcSigBits + scale); 
+        absResult ^= dstMinNormal; 
+        const int resultExponent = dstExpBias - srcExpBias - scale + 1; 
+        absResult |= (dst_rep_t)resultExponent << dstSigBits; 
+    } 
+ 
+    else { 
+        // a is zero. 
+        absResult = 0; 
+    } 
+ 
+    // Apply the signbit to (dst_t)abs(a). 
+    const dst_rep_t result = absResult | (dst_rep_t)sign << (dstBits - srcBits); 
+    return dstFromRep(result); 
+}