Changes

Summary

UBSAN: emit distinctive traps (details)
[IR] Remove CastInst::isCastable since it is not used (details)
[CodeGen] Add text section prefix for COFF object file (details)
[DebugInfo][Docs] Document MIR language debug-info constructs (details)
[compiler-rt] Allow appending to 'target_cflags' value from lit_config. (details)
[NFC] Chec[^k] -> Check (details)
[LICM][docs] Document that LICM is also a canonicalization transform. NFC. (details)

Commit c5978f42ec8e9f7fa62a38510343440485752ec5 by Tim Northover UBSAN: emit distinctive traps Sometimes people get minimal crash reports after a UBSAN incident. This change tags each trap with an integer representing the kind of failure encountered, which can aid in tracking down the root cause of the problem.
	clang/test/CodeGen/catch-implicit-integer-truncations.c
	llvm/lib/Target/X86/X86ISelLowering.cpp
	clang/test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp
	llvm/test/CodeGen/AArch64/ubsantrap.ll
	clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
	clang/test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function.cpp
	clang/test/CodeGenCXX/trap-fnattr.cpp
	clang/test/CodeGen/catch-nullptr-and-nonzero-offset.c
	llvm/lib/Target/X86/X86MCInstLower.cpp
	llvm/lib/CodeGen/TargetLoweringBase.cpp
	llvm/lib/Target/X86/X86InstrSystem.td
	clang/test/CodeGen/catch-pointer-overflow.c
	llvm/docs/LangRef.rst
	clang/test/CodeGen/catch-pointer-overflow-volatile.c
	clang/test/CodeGen/sanitize-trap.c
	clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec.c
	clang/lib/CodeGen/CGClass.cpp
	clang/lib/CodeGen/CGExprScalar.cpp
	llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
	clang/test/CodeGen/ubsan-trap-debugloc.c
	llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
	llvm/include/llvm/IR/Intrinsics.td
	llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
	clang/test/CodeGenCXX/cfi-mfcall.cpp
	clang/test/CodeGen/catch-undef-behavior.c
	clang/test/CodeGen/cfi-check-fail2.c
	clang/test/CodeGen/catch-alignment-assumption-openmp.cpp
	clang/test/CodeGenCXX/cfi-cast.cpp
	clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-two-params.cpp
	clang/test/CodeGen/bounds-checking.c
	clang/lib/CodeGen/ItaniumCXXABI.cpp
	clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec.c
	llvm/test/CodeGen/X86/ubsantrap.ll
	llvm/include/llvm/Target/TargetSelectionDAG.td
	llvm/lib/Target/AArch64/AArch64InstrInfo.td
	clang/lib/CodeGen/CGExpr.cpp
	clang/test/CodeGen/unsigned-trapv.c
	llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
	clang/test/CodeGen/catch-alignment-assumption-attribute-alloc_align-on-function.cpp
	clang/test/CodeGenCXX/type-metadata.cpp
	clang/test/CodeGen/catch-implicit-integer-truncations-CompoundAssignOperator.c
	llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
	clang/test/CodeGen/catch-implicit-signed-integer-truncation-or-sign-change-CompoundAssignOperator.c
	clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-paramvar.cpp
	clang/test/CodeGen/catch-nullptr-and-nonzero-offset-when-nullptr-is-defined.c
	clang/test/CodeGen/catch-alignment-assumption-attribute-alloc_align-on-function-variable.cpp
	clang/lib/CodeGen/CodeGenFunction.h
	clang/test/CodeGen/catch-implicit-integer-sign-changes.c
	clang/test/CodeGen/trapv.c
	clang/test/CodeGen/catch-alignment-assumption-builtin_assume_aligned-three-params.cpp
	clang/test/CodeGen/catch-alignment-assumption-attribute-align_value-on-lvalue.cpp
	clang/test/CodeGen/catch-implicit-signed-integer-truncation-or-sign-change.c
	llvm/include/llvm/CodeGen/ISDOpcodes.h
	clang/test/CodeGen/cfi-check-fail.c
	clang/test/CodeGen/catch-implicit-integer-sign-changes-CompoundAssignOperator.c
Commit 2cfbdaf601049faafb2f1b40f63a3b2bef74a464 by cullen.rhodes [IR] Remove CastInst::isCastable since it is not used It was removed back in 2013 (f63dfbb) by Matt Arsenault but then reverted since DragonEgg used it, but that project is no longer maintained. Reviewed By: ldionne, dexonsmith Differential Revision: https://reviews.llvm.org/D92571
	llvm/unittests/IR/InstructionsTest.cpp
	llvm/lib/IR/Instructions.cpp
	llvm/include/llvm/IR/InstrTypes.h
Commit 7af802994eb0521e1b00eda95303f21e874d9f22 by pengfei.wang [CodeGen] Add text section prefix for COFF object file Text section prefix is created in CodeGenPrepare, it's file format independent implementation, text section name is written into object file in TargetLoweringObjectFile, it's file format dependent implementation, port code of adding text section prefix to text section name from ELF to COFF. Different with ELF that use '.' as concatenation character, COFF use '$' as concatenation character. That is, concatenation character is variable, so split concatenation character from text section prefix. Text section prefix is existing feature of ELF, it can help to reduce icache and itlb misses, it's also make possible aggregate other compilers e.g. v8 created same prefix sections. Furthermore, the recent feature Machine Function Splitter (basic block level text prefix section) is based on text section prefix. Reviewed By: pengfei, rnk Differential Revision: https://reviews.llvm.org/D92073
	llvm/test/Transforms/CodeGenPrepare/X86/section.ll
	llvm/include/llvm/ProfileData/ProfileCommon.h
	llvm/test/CodeGen/X86/text-section-prefix.ll
	llvm/test/CodeGen/X86/mingw-comdats.ll
	llvm/test/Transforms/HotColdSplit/coldentrycount.ll
	llvm/lib/CodeGen/MachineFunctionSplitter.cpp
	llvm/lib/CodeGen/CodeGenPrepare.cpp
	llvm/test/CodeGen/X86/machine-function-splitter.ll
	llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
	llvm/test/Transforms/SampleProfile/section-accurate-samplepgo.ll
	llvm/test/Transforms/CodeGenPrepare/X86/section-samplepgo.ll
Commit cda32aba4f46033eea4eea6eda703459dc3c7a1e by jeremy.morse [DebugInfo][Docs] Document MIR language debug-info constructs This patch documents the MIR syntax for a number of things relevant to debugging information: * Trailing 'debug-location' metadata that becomes a DebugLoc, * Variable location metadata for stack slots, * Syntax for DBG_VALUE metainstructions, * Syntax for DBG_INSTR_REF, including trailing instruction numbers attached to MIR instructions. Differential Revision: https://reviews.llvm.org/D89337
	llvm/docs/MIRLangRef.rst
Commit deec343bfd85d7c78fb0d8e251e63f372767297d by abidh [compiler-rt] Allow appending to 'target_cflags' value from lit_config. This patch is similar to D84708. When testing compiler-rt on different baremetal targets, it helps to have the ability to pass some more parameters at test time that allows you to build the test executable for a given target. For an example, you may need a different linker command file for different targets. This patch will allows to do things like $ llvm-lit --param=append_target_cflags="-T simulator.ld" or $ llvm-lit --param=append_target_cflags="-T hardware.ld" In this way, you can run tests on different targets without having to run cmake again. Reviewed By: delcypher Differential Revision: https://reviews.llvm.org/D91783
	compiler-rt/test/lit.common.cfg.py
Commit c100d7ba36a5501bba6f7107a531323a51498bf6 by david.green [NFC] Chec[^k] -> Check Some test updates all appearing to use the wrong spelling of CHECK.
	llvm/test/CodeGen/AArch64/arm64-fold-lsl.ll
	llvm/test/DebugInfo/COFF/retained-types.ll
	llvm/test/MC/Mips/macro-ddiv.s
	llvm/test/CodeGen/ARM/ParallelDSP/inner-full-unroll.ll
	llvm/test/CodeGen/ARM/vminmaxnm-safe.ll
	llvm/test/tools/llvm-readobj/ELF/groups.test
	llvm/test/CodeGen/ARM/v7k-abi-align.ll
	llvm/test/Transforms/IRCE/pre_post_loops.ll
	llvm/utils/llvm-compilers-check
	llvm/test/CodeGen/ARM/fold-stack-adjust.ll
	llvm/test/MC/ARM/thumb_set-diagnostics.s
Commit 1e260f955d3123351fc68de8c2dde02b1be6d14f by sjoerd.meijer [LICM][docs] Document that LICM is also a canonicalization transform. NFC. This documents that LICM is a canonicalization transform, which we discussed recently in: http://lists.llvm.org/pipermail/llvm-dev/2020-December/147184.html but which was also discused earlier, e.g. in: http://lists.llvm.org/pipermail/llvm-dev/2019-September/135058.html
	llvm/docs/Passes.rst
	llvm/lib/Transforms/Scalar/LICM.cpp

Summary

[lldb] Remove use of removed dotest arg -s in build.py (details)

Commit b92c0f759b1fe309f090bfbb81def93830bf36ec by Raphael Isemann [lldb] Remove use of removed dotest arg -s in build.py
	zorg/jenkins/build.py