[asan] port r196375 to 3.4

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@196478 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196501:
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r196501 | samsonov | 2013-12-05 16:53:36 +0400 (Thu, 05 Dec 2013) | 1 line

Run TSan/MSan lit tests only on 64-bit platforms
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@196502 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196612:
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r196612 | wdietz2 | 2013-12-06 13:49:18 -0800 (Fri, 06 Dec 2013) | 1 line

Fix integer tests on platforms where uint64_t is 'unsigned long long'.
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@196870 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196799:
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r196799 | wdietz2 | 2013-12-09 11:04:33 -0800 (Mon, 09 Dec 2013) | 1 line

ubsan: Fix typo in 'TypeCheck/vptr.cpp' test to resolve 32bit failure.
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@196871 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196809:
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r196809 | rsmith | 2013-12-09 11:52:39 -0800 (Mon, 09 Dec 2013) | 2 lines

Unbreak build by adding an implementation of PopStackFrames function.

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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@197010 91177308-0d34-0410-b5e6-96231b3b80d8
Merging r196802:
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r196802 | chandlerc | 2013-12-09 11:25:51 -0800 (Mon, 09 Dec 2013) | 11 lines

Revert three patches which were committed without explicit contribution
by their authors.

This may break builds where others added code relying on these patches,
but please *do not* revert this commit. Instead, we will prepare patches
which fix the failures.

Reverts the following commits:
r168306: "[asan] support x32 mode in the fast stack unwinder. Patch by H.J. Lu"
r168356: "[asan] more support for powerpc, patch by Peter Bergner"
r196489: "[sanitizer] fix the ppc32 build (patch by Jakub Jelinek)"
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@197011 91177308-0d34-0410-b5e6-96231b3b80d8
Readd the prototype.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@197012 91177308-0d34-0410-b5e6-96231b3b80d8