1 files changed, 46 insertions, 49 deletions
diff --git a/lib/builtins/ppc/gcc_qdiv.c b/lib/builtins/ppc/gcc_qdiv.c
index 70aa00b64400..35a3cbc3d3f8 100644
--- a/lib/builtins/ppc/gcc_qdiv.c
+++ b/lib/builtins/ppc/gcc_qdiv.c
@@ -1,55 +1,52 @@
-/* This file is distributed under the University of Illinois Open Source
- * License. See LICENSE.TXT for details.
- */
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-/* long double __gcc_qdiv(long double x, long double y);
- * This file implements the PowerPC 128-bit double-double division operation.
- * This implementation is shamelessly cribbed from Apple's DDRT, circa 1993(!)
- */
+// long double __gcc_qdiv(long double x, long double y);
+// This file implements the PowerPC 128-bit double-double division operation.
+// This implementation is shamelessly cribbed from Apple's DDRT, circa 1993(!)
 
 #include "DD.h"
 
-long double __gcc_qdiv(long double a, long double b)
-{	
-	static const uint32_t infinityHi = UINT32_C(0x7ff00000);
-	DD dst = { .ld = a }, src = { .ld = b };
-	
-	register double x = dst.s.hi, x1 = dst.s.lo,
-					y = src.s.hi, y1 = src.s.lo;
-	
-    double yHi, yLo, qHi, qLo;
-    double yq, tmp, q;
-	
-    q = x / y;
-	
-	/* Detect special cases */
-	if (q == 0.0) {
-		dst.s.hi = q;
-		dst.s.lo = 0.0;
-		return dst.ld;
-	}
-	
-	const doublebits qBits = { .d = q };
-	if (((uint32_t)(qBits.x >> 32) & infinityHi) == infinityHi) {
-		dst.s.hi = q;
-		dst.s.lo = 0.0;
-		return dst.ld;
-	}
-	
-    yHi = high26bits(y);
-    qHi = high26bits(q);
-	
-    yq = y * q;
-    yLo = y - yHi;
-    qLo = q - qHi;
-	
-    tmp = LOWORDER(yq, yHi, yLo, qHi, qLo);
-    tmp = (x - yq) - tmp;
-    tmp = ((tmp + x1) - y1 * q) / y;
-    x = q + tmp;
-	
-    dst.s.lo = (q - x) + tmp;
-    dst.s.hi = x;
-	
+long double __gcc_qdiv(long double a, long double b) {
+  static const uint32_t infinityHi = UINT32_C(0x7ff00000);
+  DD dst = {.ld = a}, src = {.ld = b};
+
+  register double x = dst.s.hi, x1 = dst.s.lo, y = src.s.hi, y1 = src.s.lo;
+
+  double yHi, yLo, qHi, qLo;
+  double yq, tmp, q;
+
+  q = x / y;
+
+  // Detect special cases
+  if (q == 0.0) {
+    dst.s.hi = q;
+    dst.s.lo = 0.0;
+    return dst.ld;
+  }
+
+  const doublebits qBits = {.d = q};
+  if (((uint32_t)(qBits.x >> 32) & infinityHi) == infinityHi) {
+    dst.s.hi = q;
+    dst.s.lo = 0.0;
     return dst.ld;
+  }
+
+  yHi = high26bits(y);
+  qHi = high26bits(q);
+
+  yq = y * q;
+  yLo = y - yHi;
+  qLo = q - qHi;
+
+  tmp = LOWORDER(yq, yHi, yLo, qHi, qLo);
+  tmp = (x - yq) - tmp;
+  tmp = ((tmp + x1) - y1 * q) / y;
+  x = q + tmp;
+
+  dst.s.lo = (q - x) + tmp;
+  dst.s.hi = x;
+
+  return dst.ld;
 }