Merged from r221525:

[mips] Move MipsCCState to a separate file and clang-formatted it.

Summary:

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6114




git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223061 91177308-0d34-0410-b5e6-96231b3b80d8
Merged from r221527:

MipsCCState.h: Use LLVM_DELETED_FUNCTION for msc17.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223062 91177308-0d34-0410-b5e6-96231b3b80d8
Merged from r221528:

[mips] Remove MipsCC::reservedArgArea() in favour of MipsABIInfo::GetCalleeAllocdArgSizeInBytes(). NFC.

Summary:

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6115




git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223063 91177308-0d34-0410-b5e6-96231b3b80d8
Merged from r221529:

[mips] Removed the remainder of MipsCC. NFC.

Summary:
One of the calls to AllocateStack (the one in LowerCall) doesn't look like
it should be there but it was there before and removing it breaks the
frame size calculation.

Reviewers: vmedic, theraven

Reviewed By: theraven

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6116




git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223065 91177308-0d34-0410-b5e6-96231b3b80d8
Merged from r221534:

[mips] Promote i32 arguments to i64 for the N32/N64 ABI and fix <64-bit structs...

Summary:
... and after all that refactoring, it's possible to distinguish softfloat
floating point values from integers so this patch no longer breaks softfloat to
do it.

Remove direct handling of i32's in the N32/N64 ABI by promoting them to
i64. This more closely reflects the ABI documentation and also fixes
problems with stack arguments on big-endian targets.

We now rely on signext/zeroext annotations (already generated by clang) and
the Assert[SZ]ext nodes to avoid the introduction of unnecessary sign/zero
extends.

It was not possible to convert three tests to use signext/zeroext. These tests
are bswap.ll, ctlz-v.ll, ctlz-v.ll. It's not possible to put signext on a
vector type so we just accept the sign extends here for now. These tests don't
pass the vectors the same way clang does (clang puts multiple elements in the
same argument, these map 1 element to 1 argument) so we don't need to worry too
much about it.

With this patch, all known N32/N64 bugs should be fixed and we now pass the
first 10,000 tests generated by ABITestGen.py.

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6117




git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223069 91177308-0d34-0410-b5e6-96231b3b80d8
Merged from r221604:

[mips] Fix sret arguments for N32/N64 which were accidentally broken in r221534.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223070 91177308-0d34-0410-b5e6-96231b3b80d8