Changes

Summary

[lldb/SWIG] Undo incorrect substitution (details)
[SystemZ] Fix matching another pattern for nxgrk (PR44496) (details)
[x86] add tests for 2-way splat copy; NFC (details)
[Support][NFC] Add an explicit unit test for Process::getPageSize() (details)
[TargetLowering][X86] TeachSimplifyDemandedBits to handle cases where (details)

Commit 7bbd4076c1984165568c978ff15b77dbfe52b6f0 by Jonas Devlieghere [lldb/SWIG] Undo incorrect substitution The Python directory for the script interpreter is still capitalized.
	lldb/bindings/python.swig
Commit b51fa8670f3d9346cad068aa7300d63eb051069d by ulrich.weigand [SystemZ] Fix matching another pattern for nxgrk (PR44496) SystemZDAGToDAGISel::Select will attempt to split logical instruction with a large immediate constant. This must not happen if the result matches one of the z15 combined operations, so the code checks for those. However, one of them was missed, causing invalid code to be generated in the test case for PR44496.
	llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
	llvm/test/CodeGen/SystemZ/not-01.ll
Commit 460cbabe170e481d4468ef77de1fb08b02a0f2a3 by spatel [x86] add tests for 2-way splat copy; NFC Based on code in PR42024: https://bugs.llvm.org/show_bug.cgi?id=42024
	llvm/test/CodeGen/X86/vector-interleave.ll
Commit 002be6cfa2b1de064d672dac6db53c01e9f150b0 by riccibrun [Support][NFC] Add an explicit unit test for Process::getPageSize() It turns out that it was only tested indirectly. For now test only on Linux X86-64 and aarch64.
	llvm/unittests/Support/ProcessTest.cpp
Commit b705fe5686a886e200fd57410c6bc9bad5c21c0e by craig.topper [TargetLowering][X86] TeachSimplifyDemandedBits to handle cases where only the sign bit is demanded from a SETCC and can be passed through If we're doing a compare that only tests the sign bit and only the sign bit is demanded, we can just bypass the node. This removes one of the blend dependencies in our v2i64->v2f32 uint_to_fp codegen on pre-sse4.2 targets. Differential Revision: https://reviews.llvm.org/D72356
	llvm/test/CodeGen/X86/vec_int_to_fp.ll
	llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp