ARM: support struct byval in llvm

We handle struct byval by inserting a pseudo op, which will be expanded to a
loop at ExpandISelPseudos.
A separate patch for clang will be submitted to enable struct byval.

rdar://9877866


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157793 91177308-0d34-0410-b5e6-96231b3b80d8
rename test


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157794 91177308-0d34-0410-b5e6-96231b3b80d8
merge some tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157795 91177308-0d34-0410-b5e6-96231b3b80d8
rearrange some logic, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157796 91177308-0d34-0410-b5e6-96231b3b80d8
add some simple 64-bit tail call tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157797 91177308-0d34-0410-b5e6-96231b3b80d8
enhance getNoopInput to know about vector<->vector bitcasts of legal
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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157798 91177308-0d34-0410-b5e6-96231b3b80d8
Tidy up. Remove trailing spaces and fix the worst of the 80 column violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157799 91177308-0d34-0410-b5e6-96231b3b80d8
enhance the logic for looking through tailcalls to look through transparent casts
in multiple-return value scenarios, like what happens on X86-64 when returning
small structs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157800 91177308-0d34-0410-b5e6-96231b3b80d8
Remove a trailing space and fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157801 91177308-0d34-0410-b5e6-96231b3b80d8
Add VFNSUB* instructions to folding table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157802 91177308-0d34-0410-b5e6-96231b3b80d8
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157804 91177308-0d34-0410-b5e6-96231b3b80d8
Enable automatic detection of FMA3 support to allow intrinsics to be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157805 91177308-0d34-0410-b5e6-96231b3b80d8
PR1255: case ranges.
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.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157810 91177308-0d34-0410-b5e6-96231b3b80d8
quick fix for PR13006, will check in testcase later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157813 91177308-0d34-0410-b5e6-96231b3b80d8
Remove noisy semicolons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157814 91177308-0d34-0410-b5e6-96231b3b80d8
PR1255: case ranges.
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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157815 91177308-0d34-0410-b5e6-96231b3b80d8
Implement the local-dynamic TLS model for x86 (PR3985)

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157818 91177308-0d34-0410-b5e6-96231b3b80d8
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)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157822 91177308-0d34-0410-b5e6-96231b3b80d8
testcase for PR13006, thanks to Duncan for filing it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157824 91177308-0d34-0410-b5e6-96231b3b80d8
Provide move semantics for (Small)BitVector.

CodeGen makes a lot of BitVector copies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157826 91177308-0d34-0410-b5e6-96231b3b80d8