John McCall c6cdebbedd Substantially optimize APFloat::toString() by doing a single large divide to ...

cut the significand down to the desired precision *before* entering the
core divmod loop.  Makes the overall algorithm logarithmic in the exponent.

There's still a lot of room for improvement here, but this gets the
performance back down to acceptable-for-diagnostics levels, even for
long doubles.
negligible, even on long doubles.

llvm-svn: 92130

2009-12-24 12:16:56 +00:00

..

Analysis

Change dbgs() back to errs() as Chris requested.

2009-12-23 23:29:28 +00:00

Archive

Prune #includes from llvm/Linker.h and llvm/System/Path.h,

2009-08-23 22:45:37 +00:00

AsmParser

Change errs() to dbgs().

2009-12-23 23:38:28 +00:00

Bitcode

Change errs() to dbgs().

2009-12-24 00:06:26 +00:00

CodeGen

handle equality memcmp of 8 bytes on x86-64 with two unaligned loads and a

2009-12-24 01:07:17 +00:00

CompilerDriver

Make Path use StringRef instead of std::string where possible.

2009-12-17 21:02:39 +00:00

ExecutionEngine

Partially revert r91626. Materializing extra functions to determine whether

2009-12-22 23:47:23 +00:00

Linker

Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a lame API.

2009-11-10 00:43:58 +00:00

MC

Pass StringRef by value.

2009-11-06 10:58:06 +00:00

Support

Substantially optimize APFloat::toString() by doing a single large divide to

2009-12-24 12:16:56 +00:00

System

Alternative fix to make sure that the extern declarations used by

2009-12-23 19:12:50 +00:00

Target

Move kill flags when the same register occurs more than once in a sequence.

2009-12-23 21:34:03 +00:00

Transforms

move an optimization for memcmp out of simplifylibcalls and into

2009-12-24 00:37:38 +00:00

VMCore

Qualify a bunch of explicit template instantiations to satisfy clang++.

2009-12-19 00:55:12 +00:00

Makefile

remove llvm-db: it is completely broken and if anyone wants to do a debugger,

2009-10-05 02:29:51 +00:00