1. Make SmallPtrSet::erase faster in the small case by replacing a memmove
    with a pointer copy.
 2. Fix a bug where the null terminator at the end of the array in the small
    case was not copied

llvm-svn: 37696

llvm-svn: 37532

for a target-dependent default with a command-line override; this way
should be generally usable.

llvm-svn: 37285

can't use getZExtValue() to extract the low order bits for each digit.
Instead, we need to access the low order word directly.

llvm-svn: 37242

llvm-svn: 37175

undefined behavior when the width > 64 bits.

llvm-svn: 37153

not being generated correctly because the shl operator does not mutate its
object but returns a new value. Also, make the distinction between radix
16 and the others more clear.

llvm-svn: 37111

llvm-svn: 37026

types:
1. Functions to compute div/rem at the same time.
2. Further assurance that an APInt with 0 bitwidth cannot be constructed.
3. Left and right rotate operations.
4. An exactLogBase2 function which requires an exact power of two or it
   returns -1.

llvm-svn: 37025

shift amount is 0. Previously this code would do a lshr by the bit width
which can lead to incorrect results.

llvm-svn: 37010

llvm-svn: 36981

llvm-svn: 36901

llvm-svn: 36899

the future (and integrate it with membuffer, etc)

llvm-svn: 36876

llvm-svn: 36875

llvm-svn: 36871

llvm-svn: 36870

file instead of aborting.

llvm-svn: 36858

a bug in GraphWriter.cpp.

Patch by Florian Brandner

llvm-svn: 36684

llvm-svn: 36680

llvm-svn: 36561

llvm-svn: 36559

llvm-svn: 36553

llvm-svn: 36475

llvm-svn: 36016

llvm-svn: 35977

represent a string in binary form by an APInt.

llvm-svn: 35968

llvm-svn: 35960

handlers (like the pass list).  My previous fix only supported *new* command
line options, not additions to old ones.

This fixes test/Feature/load_module.ll

llvm-svn: 35935

llvm-svn: 35905

llvm-svn: 35901

Change uses of sys::Path class to sys::PathWithStatus in those places where
the file status information is needed.

llvm-svn: 35743

llvm-svn: 35733

This fixes llvm-ar.

llvm-svn: 35727

This dramatically reduce the amount of memory allocated by the commandline stuff
at static init time, changing it to build local data structures when ParseCommandLineOptions
is called.  In a dummy empty program that links some llvm libraries, this reduces
the number of malloc'd bytes from 4864 to 3360 on entry to main.  Most of that
memory is now allocated by non-commandline related stuff.

llvm-svn: 35701

llvm-svn: 35690

llvm-svn: 35666

llvm-svn: 35644

initialized this way, they do not do a malloc to allocate their buckets.

llvm-svn: 35642

llvm-svn: 35632