llvm-svn: 50464

generalizes the previous code to handle the case when the string is not
an immediate to the strlen call (for example, crazy stuff like 
strlen(c ? "foo" : "bart"+1) -> 3).  This implements 
gcc.c-torture/execute/builtins/strlen-2.c.  I will generalize other
cases in simplifylibcalls to use the same routine later.

llvm-svn: 50408

fixes a crash in opt on 433.milc.

llvm-svn: 50023

This is not safe for all inputs.

llvm-svn: 49458

figuring out the suffix to use.  implement pow(2,x) -> exp2(x).

llvm-svn: 49437

long double and simplify the code.

llvm-svn: 49435

add support for  pow(x, 2.0) -> x*x.

llvm-svn: 49411

llvm-svn: 49338

Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277

llvm-svn: 48267

llvm-svn: 47373

llvm-svn: 47367

llvm-svn: 46514

llvm-svn: 46433

llvm-svn: 45418

Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.

llvm-svn: 45082

llvm-svn: 43309

llvm-svn: 42439

Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)

llvm-svn: 41747

New CallInst interface to address GLIBCXX_DEBUG errors caused by
indexing an empty std::vector.

Updates to all clients.

llvm-svn: 40660

llvm-svn: 36873

llvm-svn: 36662

Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652

llvm-svn: 36632

llvm-svn: 36047

printf("") -> noop.  Still need to do the xforms for fprintf.

This implements Transforms/SimplifyLibCalls/Printf.ll

llvm-svn: 35984

llvm-svn: 35768

fwrite optimizer.

llvm-svn: 35758

just return the string itself.

llvm-svn: 35755

llvm-svn: 35754

Fix some miscompilations in fprintf optimizer.

llvm-svn: 35753

and Prolangs-C/cdecl

llvm-svn: 35749

llvm-svn: 35713

llvm-svn: 35712

llvm-svn: 35711

llvm-svn: 35710

llvm-svn: 35709

llvm-svn: 35708

llvm-svn: 35707

SimplifyLibCalls/2007-04-06-strchr-miscompile.ll and PR1307

llvm-svn: 35706