Changes

Summary

[NFC][ARM] Comments and lambdas (details)
Recommit "[SCCP] Do not replace deref'able ptr with un-deref'able one." (details)
Revert "Recommit "[SCCP] Do not replace deref'able ptr with un-deref'able one."" (details)
[IsKnownNonZero] Handle the case with non-constant phi nodes (details)
Revert "OpaquePtr: Add type to sret attribute" (details)
[SCEV][NFC] Introduce isBasicBlockEntryGuardedByCond (details)

Commit 4c19b89b2587f321e1014a9855973c08a822b908 by sam.parker [NFC][ARM] Comments and lambdas Add some comments in LowOverheadLoops and make some lambda variables explicit arguments instead of capturing.
	llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
Commit 86a20d9e34f5a9989da72097f23f3b0a44157e73 by flo Recommit "[SCCP] Do not replace deref'able ptr with un-deref'able one." This version includes an small fix allowing function pointers to be unconditionally replaced for now. This reverts commit 4c5e4aa89b11ec3253258b8df5125833773d1b1e.
	llvm/lib/Transforms/Scalar/SCCP.cpp
	llvm/test/Transforms/SCCP/indirectbr.ll
	llvm/test/Transforms/SCCP/replace-dereferenceable-ptr-with-undereferenceable.ll
	llvm/lib/Analysis/Loads.cpp
	llvm/test/Transforms/SCCP/apint-bigint2.ll
Commit b76df593eb660d1e4c9f1384a75b404ee5bcd06f by flo Revert "Recommit "[SCCP] Do not replace deref'able ptr with un-deref'able one."" Looks like there is still another remaining issue: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/22273/steps/build%20libcxx%2Fmsan/logs/stdio This reverts commit 86a20d9e34f5a9989da72097f23f3b0a44157e73.
	llvm/test/Transforms/SCCP/apint-bigint2.ll
	llvm/test/Transforms/SCCP/indirectbr.ll
	llvm/lib/Analysis/Loads.cpp
	llvm/test/Transforms/SCCP/replace-dereferenceable-ptr-with-undereferenceable.ll
	llvm/lib/Transforms/Scalar/SCCP.cpp
Commit 297ec611304663931be52e6118d9f135ceb8a027 by serguei.katkov [IsKnownNonZero] Handle the case with non-constant phi nodes Handle the case when all inputs of phi are proven to be non zero. Constants are checked in beginning of this method before check for depth of recursion, so it is a partial case of non-constant phi. Recursion depth is already handled by the function. Reviewers: aqjune, nikic, efriedma Reviewed By: nikic Subscribers: dantrushin, hiraditya, jdoerfert, llvm-commits Differential Revision: https://reviews.llvm.org/D88276
	llvm/test/Transforms/InstCombine/phi.ll
	llvm/lib/Analysis/ValueTracking.cpp
Commit eb9f7c28e5fe6d75fed3587023e17f2997c8024b by tpopp Revert "OpaquePtr: Add type to sret attribute" This reverts commit 55c4ff91bd820d72014f63dcf7f3d5a0d3397986. Issues were introduced as discussed in https://reviews.llvm.org/D88241 where this change made previous bugs in the linker and BitCodeWriter visible.
	clang/test/CodeGen/ppc64le-aggregates.c
	llvm/lib/Bitcode/Reader/BitcodeReader.cpp
	llvm/lib/IR/Attributes.cpp
	clang/test/CodeGen/aggregate-assign-call.c
	clang/test/CodeGen/renderscript.c
	clang/test/CodeGen/wasm-varargs.c
	clang/test/CodeGenCXX/regcall.cpp
	clang/test/CodeGen/arm-vector-arguments.c
	clang/test/CodeGen/regparm-struct.c
	clang/test/CodeGen/le32-arguments.c
	clang/test/CodeGen/ppc64-align-struct.c
	clang/test/CodeGen/riscv32-ilp32f-ilp32d-abi.c
	clang/test/CodeGenCoroutines/coro-gro-nrvo.cpp
	clang/lib/CodeGen/CGCall.cpp
	llvm/test/Assembler/sret-type-attr.ll
	llvm/test/Bitcode/compatibility-3.6.ll
	clang/test/CodeGenCXX/matrix-type.cpp
	clang/test/CodeGenCXX/builtin-source-location.cpp
	llvm/test/Bitcode/compatibility.ll
	clang/test/CodeGenCXX/x86_64-arguments.cpp
	clang/test/CodeGen/riscv64-lp64-lp64f-lp64d-abi.c
	clang/test/CodeGen/systemz-abi.cpp
	llvm/test/Bitcode/attributes-3.3.ll
	clang/test/CodeGen/powerpc-c99complex.c
	clang/test/CodeGen/X86/x86_32-arguments-darwin.c
	clang/test/CodeGenCXX/lambda-expressions.cpp
	clang/test/CodeGen/X86/x86_64-arguments-nacl.c
	llvm/test/Bitcode/compatibility-4.0.ll
	clang/test/CodeGenCXX/temporaries.cpp
	llvm/test/Bitcode/compatibility-5.0.ll
	clang/test/CodeGen/riscv64-lp64-lp64f-abi.c
	clang/test/CodeGenCXX/cxx1z-copy-omission.cpp
	clang/test/CodeGen/blocks.c
	clang/test/CodeGenCXX/arm-cc.cpp
	clang/test/CodeGenCXX/exceptions.cpp
	clang/test/CodeGenCXX/microsoft-abi-byval-thunks.cpp
	clang/test/CodeGen/ppc64-elf-abi.c
	clang/test/CodeGenOpenCL/addr-space-struct-arg.cl
	llvm/test/Bitcode/compatibility-3.9.ll
	clang/test/CodeGen/arm-aapcs-vfp.c
	clang/test/CodeGen/mcu-struct-return.c
	clang/test/CodeGen/arm-varargs.c
	clang/test/CodeGenObjC/arc.m
	clang/test/CodeGen/arm-vfp16-arguments2.cpp
	clang/test/CodeGenObjC/weak-in-c-struct.m
	llvm/lib/IR/AttributeImpl.h
	clang/test/CodeGenOpenCLCXX/addrspace-of-this.cl
	clang/test/CodeGen/arm64-arguments.c
	clang/test/CodeGen/riscv64-lp64d-abi.c
	clang/test/CodeGenObjC/stret-1.m
	llvm/lib/AsmParser/LLParser.cpp
	clang/test/CodeGen/wasm-arguments.c
	clang/test/CodeGen/arc/arguments.c
	clang/test/CodeGen/windows-struct-abi.c
	clang/test/CodeGen/mips64-padding-arg.c
	clang/test/CodeGen/windows-swiftcall.c
	clang/test/CodeGenObjC/objc-non-trivial-struct-nrvo.m
	llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll
	llvm/docs/ReleaseNotes.rst
	llvm/test/Bitcode/compatibility-3.8.ll
	clang/test/CodeGen/sparcv9-abi.c
	clang/test/CodeGen/arm-vfp16-arguments.c
	llvm/test/Bitcode/highLevelStructure.3.2.ll
	llvm/lib/IR/AsmWriter.cpp
	clang/test/CodeGen/c11atomics.c
	clang/test/CodeGen/ms_abi.c
	clang/test/CodeGen/X86/x86_64-arguments.c
	clang/test/CodeGen/systemz-abi.c
	clang/test/CodeGen/systemz-inline-asm.c
	clang/test/CodeGen/riscv32-ilp32-ilp32f-ilp32d-abi.c
	clang/test/CodeGen/riscv32-ilp32d-abi.c
	clang/test/CodeGenCXX/thiscall-struct-return.cpp
	clang/test/CodeGen/systemz-abi-vector.c
	clang/test/CodeGen/arm-neon-vld.c
	clang/test/CodeGen/mips-zero-sized-struct.c
	llvm/include/llvm/IR/Function.h
	clang/test/CodeGenCXX/stack-reuse.cpp
	clang/test/CodeGenCXX/microsoft-abi-vmemptr-conflicts.cpp
	clang/test/CodeGenCXX/trivial_abi.cpp
	clang/test/CodeGen/riscv32-ilp32-abi.c
	clang/test/CodeGenCXX/call-with-static-chain.cpp
	llvm/include/llvm/IR/Attributes.h
	clang/test/CodeGen/aligned-sret.c
	clang/test/CodeGen/ppc32-and-aix-struct-return.c
	clang/test/CodeGenCXX/wasm-args-returns.cpp
	clang/test/CodeGenCXX/cxx1z-lambda-star-this.cpp
	clang/test/CodeGenCXX/x86_32-arguments.cpp
	clang/test/CodeGenCXX/unknown-anytype.cpp
	clang/test/CodeGenObjCXX/objc-struct-cxx-abi.mm
	clang/test/CodeGen/vectorcall.c
	clang/test/Modules/templates.mm
	clang/test/CodeGenCXX/microsoft-abi-cdecl-method-sret.cpp
	clang/test/CodeGenCXX/microsoft-abi-unknown-arch.cpp
	clang/test/CodeGen/arm-homogenous.c
	clang/test/CodeGen/arm64_32.c
	clang/test/CodeGen/ppc64-vector.c
	clang/test/CodeGenCoroutines/coro-await.cpp
	clang/test/CodeGen/arm_neon_intrinsics.c
	clang/test/CodeGenOpenCL/amdgpu-abi-struct-coerce.cl
	clang/test/CodeGen/aarch64-varargs.c
	clang/test/CodeGen/arm64-microsoft-arguments.cpp
	clang/test/CodeGen/ppc-aggregate-abi.cpp
	llvm/docs/LangRef.rst
	clang/test/CodeGenCXX/pass-by-value-noalias.cpp
	clang/test/CodeGen/struct-passing.c
	llvm/test/Bitcode/compatibility-6.0.ll
	llvm/test/Verifier/byref.ll
	clang/test/CodeGenCXX/matrix-type-builtins.cpp
	clang/test/CodeGenCXX/microsoft-abi-sret-and-byval.cpp
	clang/test/CodeGen/riscv64-lp64-abi.c
	clang/test/CodeGen/mingw-long-double.c
	clang/test/CodeGen/riscv32-ilp32-ilp32f-abi.c
	clang/test/CodeGen/riscv32-ilp32f-abi.c
	clang/test/CodeGenCXX/conditional-gnu-ext.cpp
	clang/test/CodeGen/ppc64le-f128Aggregates.c
	llvm/lib/AsmParser/LLParser.h
	clang/test/CodeGen/c11atomics-ios.c
	llvm/include/llvm/IR/Attributes.td
	clang/test/CodeGen/lanai-arguments.c
	clang/test/CodeGen/64bit-swiftcall.c
	clang/test/CodeGenObjC/nontrivial-c-struct-exception.m
	clang/test/CodeGenCXX/stack-reuse-miscompile.cpp
	clang/test/CodeGenObjC/direct-method.m
	clang/test/CodeGenObjC/stret_lookup.m
	clang/test/CodeGen/2006-05-19-SingleEltReturn.c
	clang/test/CodeGen/arm-swiftcall.c
	clang/test/CodeGenCXX/microsoft-abi-byval-sret.cpp
	clang/test/CodeGen/X86/x86_64-arguments-win32.c
	clang/test/CodeGen/ppc64-soft-float.c
	clang/test/CodeGenCXX/thunk-returning-memptr.cpp
	llvm/test/Bitcode/compatibility-3.7.ll
	llvm/test/Transforms/Attributor/value-simplify.ll
	clang/test/CodeGenCXX/microsoft-abi-eh-cleanups.cpp
	llvm/test/Bitcode/attributes.ll
	clang/test/CodeGen/X86/x86_32-arguments-iamcu.c
	clang/test/CodeGenCXX/homogeneous-aggregates.cpp
	clang/test/CodeGenCXX/thunks.cpp
	clang/test/CodeGen/ppc64-qpx-vector.c
Commit 9100bd772d4ff153fd2d5cb13034f4ed8ea2d477 by mkazantsev [SCEV][NFC] Introduce isBasicBlockEntryGuardedByCond Currently, we have `isLoopEntryGuardedByCond` method in SCEV, which checks that some fact is true if we enter the loop. In fact, this is just a particular case of more general concept `isBasicBlockEntryGuardedByCond` applied to given loop's header. In fact, the logic if this code is largely independent on the given loop and only cares code above it. This patch makes this generalization. Now we can query it for any block, and `isBasicBlockEntryGuardedByCond` is just a particular case. Differential Revision: https://reviews.llvm.org/D87828 Reviewed By: fhahn
	llvm/lib/Analysis/ScalarEvolution.cpp
	llvm/include/llvm/Analysis/ScalarEvolution.h