llvm-svn: 157902

llvm-svn: 157899

Rename fma4 intrinsics to just fma since they are now used for both FMA4 and FMA3. Autoupgrade support coming in a separate commit.

llvm-svn: 157898

llvm-svn: 157896

Use sse_load_f32/64 for scalar FMA3 intrinsic patterns instead of 128-bit loads to match instruction behavior.

llvm-svn: 157895

llvm-svn: 157894

Apart from being slightly cheaper, this fixes a real bug that hits 32 bit
linux systems. When passing a file larger than 2G to be linked (which isn't
that uncommon with large projects such as WebKit), clang's driver checks
if the file exists but the file size doesn't fit in an off_t and stat(2)
fails with EOVERFLOW. Clang then says that the file doesn't exist instead
of passing it to the linker.

llvm-svn: 157891

llvm-svn: 157885

IntRange converted from struct to class. So main change everywhere is replacement of ".Low/High" with ".getLow/getHigh()"

llvm-svn: 157884

IntegersSubsetGeneric, IntegersSubsetMapping: added IntTy template parameter, that allows use either APInt or IntItem. This change allows to write unittest for these classes.

llvm-svn: 157880

Check that the SDValue TargetLowering::LowerOperation returns is not null
before replacing the original node with the returned node.

llvm-svn: 157873

llvm-svn: 157872

llvm-svn: 157867

llvm-svn: 157866

llvm-svn: 157865

custom-lower unaligned load and store nodes.

llvm-svn: 157864

llvm-svn: 157863

This is the first of a series of patches which make changes to the backend to
emit unaligned load/store instructions (lwl,lwr,swl,swr) during instruction
selection.

llvm-svn: 157862

the MachineOperand type has a valid offset. 

llvm-svn: 157861

No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

llvm-svn: 157854

inject some code in that will run via the "__mod_init_func" method that
registers the gcov "writeout" function to execute at exit time.

The problem is that the "__mod_term_func" method of specifying d'tors is
deprecated on Darwin. And it can lead to some ambiguities when dealing with
multiple libraries.
<rdar://problem/11110106>

llvm-svn: 157852

After physreg coalescing was disabled, these functions can't do anything
useful with physregs anyway.

llvm-svn: 157849

MCRegAliasIterator can include Reg itself in the list.

llvm-svn: 157848

This removes a bit of context from the verifier erros, but reduces code
duplication in a fairly critical part of LLVM and makes dominates easier to test.

llvm-svn: 157845

then DestReg is undefined.

llvm-svn: 157840

MCRegAliasIterator can optionally visit the register itself, allowing
for simpler code.

llvm-svn: 157837

This patch will optimize the following:
  sub r1, r3
  cmp r3, r1 or cmp r1, r3
  bge L1
TO
  sub r1, r3
  bge L1 or ble L1

If the branch instruction can use flag from "sub", then we can eliminate
the "cmp" instruction.

llvm-svn: 157831

Factor out the expansion code into a function.
This change is to be enabled in clang.

rdar://9877866

llvm-svn: 157830

BoundsChecking: fix a bug when the handling of recursive PHIs failed and could leave dangling references in the cache
add regression tests for this problem.

Can already compile & run: PHP, PCRE, and ICU  (i.e., all the software I tried)

llvm-svn: 157822

This implements codegen support for accesses to thread-local variables
using the local-dynamic model, and adds a clean-up pass so that the base
address for the TLS block can be re-used between local-dynamic access on
an execution path.

llvm-svn: 157818

IntegersSubset devided into IntegersSubsetGeneric and into IntegersSubset itself. The first has no references to ConstantInt and works with IntItem only.
IntegersSubsetMapping also made generic. Here added second template parameter "IntegersSubsetTy" that allows to use on of two IntegersSubset types described below.

llvm-svn: 157815

llvm-svn: 157813

IntItem cleanup. IntItemBase, IntItemConstantIntImp and IntItem merged into IntItem. All arithmetic operators was propogated from APInt. Also added comparison operators <,>,<=,>=. Currently you will find set of macros that propogates operators from APInt to IntItem in the beginning of IntegerSubset. Note that THESE MACROS WILL REMOVED after all passes will case-ranges compatible. Also note that these macros much smaller pain that something like this:
if (V->getValue().ugt(AnotherV->getValue()) { ... }

These changes made IntItem full featured integer object. It allows to make IntegerSubset class generic (move out all ConstantInt references inside and add unit-tests) in next commits.

llvm-svn: 157810

llvm-svn: 157805

Remove fadd(fmul) patterns for FMA3. This needs to be implemented by paying attention to FP_CONTRACT and matching @llvm.fma which is not available yet. This will allow us to enablle intrinsic use at least though.

llvm-svn: 157804

llvm-svn: 157802

llvm-svn: 157801

in multiple-return value scenarios, like what happens on X86-64 when returning
small structs.

llvm-svn: 157800

llvm-svn: 157799

types, as well as int<->ptr casts.  This allows us to tailcall functions
with some trivial casts between the call and return (i.e. because the
return types disagree).

llvm-svn: 157798