When I migrated the toascii simplifier in r168580 Benjamin Kramer noticed
a bug in one of the comments that I migrated.

llvm-svn: 168605

This patch migrates the printf optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168604

llvm-svn: 168601

llvm-svn: 168600

llvm-svn: 168597

llvm-svn: 168592

llvm-svn: 168590

Simplify some repetitive code with it. No functionality change.

llvm-svn: 168587

llvm-svn: 168586

The bug can be triggered when we require LoopInfo analysis ahead of DominatorTree construction in a Module Pass. The cause is that the LoopInfo analysis itself also invokes DominatorTree construction, therefore, when PassManager schedules LoopInfo, it will add DominatorTree first. Then after that, when the PassManger turns to schedule DominatorTree invoked by the above ModulePass, it finds there is already a DominatorTree, so it delete the redundant one. However, somehow it still try to access that pass pointer after free as code pasted below, which results in segment fault.

llvm-svn: 168581

This patch migrates the toascii optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168580

This patch migrates the isascii optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168579

This patch migrates the isdigit optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168578

This patch migrates the *abs optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168574

This patch migrates the ffs* optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

llvm-svn: 168571

llvm-svn: 168570

llvm-svn: 168569

llvm-svn: 168568

  - Widespread trailing space removal
  - A dash of OCD spacing to block align enums
  - joined a line that probably needed 80 cols a while back

llvm-svn: 168566

to support it. Original patch with the parsing and plumbing by the PaX team and
Roman Divacky. I added the bits in MCDwarf.cpp and the test.

llvm-svn: 168565

No functionality change.

llvm-svn: 168561

llvm-svn: 168560

llvm-svn: 168559

llvm-svn: 168558

llvm-svn: 168557

Remove duplicate check of LimitFloatPrecision. It was already checked earlier before IsExp10 could be set to true.

llvm-svn: 168553

llvm-svn: 168551

Remove redundant calls to getCurDebugLoc in visitIntrinsicCall. It's already called at the start of the function and captured in a local variable.

llvm-svn: 168548

llvm-svn: 168546

Necessary to give disassembler users (like darwin's otool) a possibility to
dlopen libLTO and still initialize the required LLVM bits. This used to go
through libMCDisassembler but that's a gross layering violation, the MC layer
can't pull in functions from the targets. Adding a function to libLTO is a bit
of a hack but not worse than exposing other disassembler bits from libLTO.

Fixes PR14362.

llvm-svn: 168545

llvm-svn: 168543

The implementations already diverged a bit, merge them back together.

llvm-svn: 168542

The last remaining bit is "bcl 20, 31, AnonSymbol", which I couldn't find the
instruction definition for. Only whitespace changes in assembly output.

llvm-svn: 168541

llvm-svn: 168540

No functionality change.

llvm-svn: 168539

llvm-svn: 168538

We now store the Register and Offset directly. MachineLocation is gone (from
this file)!

llvm-svn: 168536

This untangles the switch cases of the old Move and RelMove opcodes a bit
and makes it clear how to add new instructions.

llvm-svn: 168534

llvm-svn: 168533

Give MCCFIInstruction a single, private constructor and add helper static
methods that create each type of cfi instruction. This is is preparation
for changing its representation. The representation with a pair
MachineLocations older than MC and has been abused quiet a bit to support
more cfi instructions.

llvm-svn: 168532