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from cb8b3a2740a [ADT] Adds equality operators for DenseMap and DenseSet, an [...] new 8559689cb23 [x86] add tests for fma with undef elts; NFC new dea3b338ac8 Revert "[NewPM] teach -passes= to emit meaningful error messages"

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Summary of changes: include/llvm/Passes/PassBuilder.h | 51 ++-- lib/LTO/LTOBackend.cpp | 14 +- lib/Passes/PassBuilder.cpp | 366 ++++++++++++----------------- test/CodeGen/X86/fma_patterns.ll | 46 ++++ test/Other/pass-pipeline-parsing.ll | 83 ++----- test/tools/llvm-lto2/X86/pipeline.ll | 4 +- test/tools/llvm-opt-fuzzer/command-line.ll | 2 +- tools/llvm-opt-fuzzer/llvm-opt-fuzzer.cpp | 11 +- tools/opt/NewPMDriver.cpp | 84 +++---- unittests/IR/CMakeLists.txt | 2 - unittests/IR/PassBuilderCallbacksTest.cpp | 37 ++- unittests/Passes/CMakeLists.txt | 1 - unittests/Passes/PluginsTest.cpp | 5 +- 13 files changed, 312 insertions(+), 394 deletions(-)