llvm-svn: 108888

llvm-svn: 108887

llvm-svn: 108886

llvm-svn: 108885

like this:

void *test(long N) {
  return new int[N][42][42];
}

the loop generates two dead mul instructions:

  %tmp = load i64* %N.addr                        ; <i64> [#uses=2]
  %0 = mul i64 %tmp, 7056                         ; <i64> [#uses=1]
  %1 = mul i64 %tmp, 42                           ; <i64> [#uses=1]
  %2 = mul i64 %1, 42                             ; <i64> [#uses=0]
  %call = call noalias i8* @_Znam(i64 %0)         ; <i8*> [#uses=1]

The scale of these multiplies is already handled by the typesize stuff.

llvm-svn: 108884

llvm-svn: 108883

EmitCXXNewAllocSize.  This code uses IRBuilder, which does
constant folding already.

llvm-svn: 108882

llvm-svn: 108879

llvm-svn: 108878

Convert the internal PassRegistrar class into a new, external PassRegistry class.  No intended functionality change at this point.

llvm-svn: 108877

llvm-svn: 108876

llvm-svn: 108875

llvm-svn: 108874

llvm-svn: 108873

llvm-svn: 108872

symbol table (from William Lynch).

llvm-svn: 108871

llvm-svn: 108870

better in the llvm world.  Among other things, this changes:

1. The guts of libedis are now moved into lib/MC/MCDisassembler
2. llvm-mc now depends on lib/MC/MCDisassembler, not tools/edis,
   so edis and mc don't have to be built in series.
3. lib/MC/MCDisassembler no longer depends on the C api, the C
   API depends on it.
4. Various code cleanup changes. 

There is still a lot to be done to make edis fit with the llvm
design, but this is an incremental step in the right direction.

llvm-svn: 108869

llvm-svn: 108868

use getIncomingValueForBlock instead of
LoopInfo::getCanonicalInductionVariableIncrement.

llvm-svn: 108865

llvm-svn: 108864

one loop is involved in the increment of an addrec for another
loop. This fixes rdar://8168938.

llvm-svn: 108863

Pull out r108755.  After offline discussion with Chris, we're going to go a different direction with this.

llvm-svn: 108856

llvm-svn: 108855

llvm-svn: 108854

find integer induction variables.

llvm-svn: 108853

result is a PHINode*.

llvm-svn: 108852

llvm-svn: 108851

that is needed here.

llvm-svn: 108850

this is still minimal on purpose, but I plan to migrate the ugly
hack under #ifdef DEBUG_CAST_OPERATORS into this file

llvm-svn: 108849

llvm-svn: 108848

ObjC ABI version 2 this time.

llvm-svn: 108847

llvm-svn: 108846

llvm-svn: 108845

instruction selection to prefer it when possible. rdar://7903972

llvm-svn: 108844

llvm-svn: 108843

This is a work in progress. So far we have some basic loop analysis to help
determine where it is useful to split a live range around a loop.

The actual loop splitting code from Splitter.cpp is also going to move in here.

llvm-svn: 108842

llvm-svn: 108841

llvm-svn: 108840

llvm-svn: 108839