of targets for various purposes.

llvm-svn: 73610

lock.  This is obviously bad, but at least it's threadsafe!  If you know how
to improve this in a pre-Vista friendly well, patches welcome!

Patch by Max Burke.

llvm-svn: 73607

printers.

While I'm here, alphabetize.

llvm-svn: 73606

>> What if my global variable was into a different address space than stack?
>>     
>
> It doesn't matter in terms of semantics: because AnalyzeGlobal
> returned false, we're guaranteed the address of the global is never
> taken.  I wouldn't be surprised if we end up generating invalid IR in
> some cases, though, because of the semantics of replaceAllUsesWith.
> Do you have a testcase that breaks?
>
>   
The problem is replaceAllUsesWith asserts for type mismatch here. Try attached .bc with llvm-ld.

assert(New->getType() == getType() &&
        "replaceAllUses of value with new value of different type!");

Since stack is always on address space zero, I don't think that type of GV in a different address space is ever going to match.
The other way is to allow replaceAllUsesWith to ignore address spaces while comparing types. (do we have  a way to do that ?).
But then such an optimization may fail the entire idea of user wanting to place a variable into different memory space. The original idea of user might be to save on the stack space (data memory) and hence he asked the variable to be placed into different memory space (program memory). So the best bet here is to deny this optimization by checking

GV->getType()->getAddressSpace() == 0. 

llvm-svn: 73605

llvm-svn: 73603

llvm-svn: 73602

llvm-svn: 73601

llvm-svn: 73600

creating new files very well).

llvm-svn: 73599

SRem.

llvm-svn: 73598

llvm-svn: 73597

llvm-svn: 73596

target so that the JIT works in LLI, not just the interpreter.

llvm-svn: 73595

that gets recognized with a SCEVZeroExtendExpr must be an And
with a low-bits mask. With r73540, this is no longer the case.

llvm-svn: 73594

Do not use first actual instruction's location for prologue. The debug wants to skip prologue while setting a breakpoint for the function.

llvm-svn: 73592

llvm-svn: 73591

Define LLVM_NATIVE_ARCH in llvm/Config/config.h to be the LLVM back end that corresponds to the native executable, but only when that LLVM back end is being built

llvm-svn: 73590

llvm-svn: 73588

thread-safe reference counting.

llvm-svn: 73587

llvm-svn: 73586

object files.  Now we always build LLVM libraries into archives (.a files).

This makes the 'make' build work more like the cmake build, among other
things.  Doing this exposed some latent circular library dependencies, so
I think that llvm-config wasn't quite right for .o files anyway.

llvm-svn: 73579

llvm-svn: 73578

Use a reader-writer lock to guard large portions of the Type infrastructure, including abstract type refinement.
There's still some more work to be done here, such as guarding removeAbstractTypeUser() and the printers.

llvm-svn: 73575

and its asmprinter.

llvm-svn: 73573

Calling into createJIT directly creates a circular dependency between libjit and lib ee.

llvm-svn: 73567

llvm-svn: 73566

llvm-svn: 73565

llvm-svn: 73552

llvm-svn: 73551

llvm-svn: 73550

llvm-svn: 73548

llvm-svn: 73547

llvm-svn: 73546

llvm-svn: 73545

initialization of all targets (InitializeAllTargets.h) or assembler
printers (InitializeAllAsmPrinters.h). This is a step toward the
elimination of relinked object files, so that we can build normal
archives.

llvm-svn: 73543

llvm-svn: 73541

obscuring what would otherwise be a low-bits mask.  Use ComputeMaskedBits
to compute what ShrinkDemandedConstant knew about to reconstruct a
low-bits mask value.

llvm-svn: 73540

llvm-svn: 73536

Dispatch C calling conv. to one of these conventions based on
target triple and subtarget features.

llvm-svn: 73530

(this is the case when we have thumb vararg function with single
callee-saved register, which is handled separately).

llvm-svn: 73529