[llvm-commits] [llvm] r42913 - /llvm/trunk/lib/Support/APFloat.cpp
Neil Booth
neil at daikokuya.co.uk
Fri Oct 12 09:05:57 PDT 2007
Author: neil
Date: Fri Oct 12 11:05:57 2007
New Revision: 42913
URL: http://llvm.org/viewvc/llvm-project?rev=42913&view=rev
Log:
Remove duplicate comment.
Modified:
llvm/trunk/lib/Support/APFloat.cpp
Modified: llvm/trunk/lib/Support/APFloat.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APFloat.cpp?rev=42913&r1=42912&r2=42913&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APFloat.cpp (original)
+++ llvm/trunk/lib/Support/APFloat.cpp Fri Oct 12 11:05:57 2007
@@ -325,17 +325,6 @@
static unsigned int
powerOf5(integerPart *dst, unsigned int power)
{
- /* A tight upper bound on number of parts required to hold the
- value pow(5, power) is
-
- power * 65536 / (28224 * integerPartWidth) + 1
-
- However, whilst the result may require only N parts, because we
- are multiplying two values to get it, the multiplication may
- require N + 1 parts with the excess part being zero (consider
- the trivial case of 1 * 1, the multiplier requires two parts to
- hold the single-part result). So we add two to guarantee
- enough space whilst multiplying. */
static integerPart firstEightPowers[] = { 1, 5, 25, 125, 625, 3125,
15625, 78125 };
static integerPart pow5s[maxPowerOfFiveParts * 2 + 5] = { 78125 * 5 };
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