MC: don't create a backtrace for diagnostics.

For better or worse, this is currently the normal error reporting path
when dealing with backend errors from inline assembly. It's not just
internal compiler issues that come through here, so we shouldn't be
creating a backtrace on this path.

rdar://16329947

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203979 91177308-0d34-0410-b5e6-96231b3b80d8
typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203980 91177308-0d34-0410-b5e6-96231b3b80d8
Re-add checks that were in this testcase before it was converted to dwarfdump.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203981 91177308-0d34-0410-b5e6-96231b3b80d8
Debug Info: Fix LTO type uniquing for C++ member declarations
based on the ODR.

This adds an OdrMemberMap to DwarfDebug which is used to unique C++
member function declarations based on the unique identifier of their
containing class and their mangled name.
We can't use the usual DIRef mechanism here because DIScopes are indexed
using their entire MDNode, including decl_file and decl_line, which need
not be unique (see testcase).

Prior to this change multiple redundant member function declarations would
end up in the same uniqued DW_TAG_class_type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203982 91177308-0d34-0410-b5e6-96231b3b80d8
Debug info: Unique types before emitting them to DWARF, where applicable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203983 91177308-0d34-0410-b5e6-96231b3b80d8
Object/COFF: change data type of SymbolNumber from int16 to uint16.

Microsoft PE/COFF Spec clearly states that the field is of signed interger
type. However, in reality, it's unsigned. If cl.exe needs to create a large
number of sections for COMDAT sections, it will just create more than 32768
sections. Handling large section number as negative number is not correct.
I think this is a spec bug.

Differential Revision: http://llvm-reviews.chandlerc.com/D3088

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R600: Code cleanup.

Use sign_extend_inreg and getZeroExtendInReg instead of
using the bit operations they expand into.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203988 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Remove unnecessary attempt to zext a pointer.

Private pointers are now always 32-bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203989 91177308-0d34-0410-b5e6-96231b3b80d8
SampleProfile.cpp: Quick fix to r203976 about abuse of Twine. The life of Twine was too short.

FIXME: DiagnosticInfoSampleProfile should not hold Twine&.

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SampleProfile.cpp: Fix take #2. The issue was abuse of StringRef here.

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llvm/test/Transforms/SampleProfile/syntax.ll: Suppress checking the message catalog in ENOENT. It is locale-dependent on Windows.

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Support: Make error_category's constructor public

Since our error_category is based on the std one, we should have the
same visibility for the constructor.  This also allows us to avoid
using the _do_message implementation detail in our own categories.

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Replace ValueTypes.h with MachineValueType.h if possible.

Utilize the previous move of MVT to a separate header for all trivial
cases (that don't need any further restructuring).

Reviewed By: Tim Northover

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LSR: Compress a pair (and get rid of the DenseMapInfo for it).

Also convert a horrible hash function to use our hashing infrastructure.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204008 91177308-0d34-0410-b5e6-96231b3b80d8
PointerIntPair: Avoid an (academic) case of undefined behavior in the DenseMapInfo specialization.

If we use a pair with an enum type this could create values outside
of the enum range. Avoid it by creating the bit pattern directly.
While there turn a dynamic assert into a static one. No functionality
change.

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Make some assertions on constant expressions static.

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