Add comments, copyright notices, minor cleanup #2
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With this patch, the server can: - Respond to `initalize` request with its capabilites and a Hello notification - Respond to `textDocument/didOpen` notification - Respond to `llvm/getCfg` request with a path to CFG containing SVG file - Respond to `llvm/cfgNode` request with Dummy NodeID in SVG file - Respond to `llvm/bbLocation` request with Dummy Location values in IR file Tests to be added for these features
We had to use the Wrapper DOTFuncInfo around llvm::Function to correctly generate the Graphs. Still don't know how to get the BlockFrequencyInfo and BlockProbabilityInfo to give colors to the Graph Nodes, but that's non-critical.
it's broken for now, not sure why but it encodes the uri with backslashes
…king for Functions
Problem was sending the array wrapped in an object
This always opens the cfg for the currently active code editor for now. Completely ignores the code location and doesn't pass any args to the llvm.cfg command
llvm dumps messages that are read by the client but shouldn't be, for example "writing to the newly created file /remote-home/jjecmen/irviz-2.0/test/Artifacts-foo/main.dot"
we need to fix this in the parser already!
The broken thing was that the svg ids generated started with a digit, and then the selectors didn't work properly. Also removed the navigate to cfg message since that one is basically the same as opening a cfg, just with centering on a node other than the entry one.
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Bertik23
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Sep 15, 2025
Reverts llvm#154949 due to suspected buildbot breakage (https://lab.llvm.org/buildbot/#/builders/55/builds/16630/steps/11/logs/stdio). Previously commented on the original pull request: llvm#154949 (comment) ``` ******************** TEST 'MLIR :: Dialect/XeGPU/subgroup-distribute.mlir' FAILED ******************** ... # | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. # | Stack dump: # | 0. Program arguments: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/mlir-opt -xegpu-subgroup-distribute -allow-unregistered-dialect -canonicalize -cse -split-input-file /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/test/Dialect/XeGPU/subgroup-distribute.mlir # | #0 0x0000c0af4b066df0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:834:13 # | #1 0x0000c0af4b060e20 llvm::sys::RunSignalHandlers() /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/lib/Support/Signals.cpp:105:18 # | #2 0x0000c0af4b0691b4 SignalHandler(int, siginfo_t*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:426:38 # | #3 0x0000ee25a3dcb8f8 (linux-vdso.so.1+0x8f8) # | #4 0x0000ee25a36c7608 (/lib/aarch64-linux-gnu/libc.so.6+0x87608) # | #5 0x0000ee25a367cb3c raise (/lib/aarch64-linux-gnu/libc.so.6+0x3cb3c) # | #6 0x0000ee25a3667e00 abort (/lib/aarch64-linux-gnu/libc.so.6+0x27e00) # | #7 0x0000c0af4ae7e4b0 __sanitizer::Atexit(void (*)()) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp:168:10 # | #8 0x0000c0af4ae7c354 __sanitizer::Die() /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_termination.cpp:52:5 # | #9 0x0000c0af4ae66a30 Unlock /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/../sanitizer_common/sanitizer_mutex.h:250:16 # | #10 0x0000c0af4ae66a30 ~GenericScopedLock /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/../sanitizer_common/sanitizer_mutex.h:386:51 # | #11 0x0000c0af4ae66a30 __hwasan::ScopedReport::~ScopedReport() /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/hwasan_report.cpp:54:5 # | #12 0x0000c0af4ae661b8 __hwasan::(anonymous namespace)::BaseReport::~BaseReport() /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/hwasan_report.cpp:477:7 # | #13 0x0000c0af4ae63f5c __hwasan::ReportTagMismatch(__sanitizer::StackTrace*, unsigned long, unsigned long, bool, bool, unsigned long*) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/hwasan_report.cpp:1094:1 # | llvm#14 0x0000c0af4ae4f8e0 Destroy /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/../sanitizer_common/sanitizer_common.h:532:31 # | llvm#15 0x0000c0af4ae4f8e0 ~InternalMmapVector /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/../sanitizer_common/sanitizer_common.h:642:56 # | llvm#16 0x0000c0af4ae4f8e0 __hwasan::HandleTagMismatch(__hwasan::AccessInfo, unsigned long, unsigned long, void*, unsigned long*) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/hwasan.cpp:245:1 # | llvm#17 0x0000c0af4ae51e8c __hwasan_tag_mismatch4 /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/hwasan/hwasan.cpp:764:1 # | llvm#18 0x0000c0af4ae67b30 __interception::InterceptFunction(char const*, unsigned long*, unsigned long, unsigned long) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/compiler-rt/lib/interception/interception_linux.cpp:60:0 # | llvm#19 0x0000c0af5641cd24 getNumResults /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/include/mlir/IR/Operation.h:404:37 # | llvm#20 0x0000c0af5641cd24 getOpResultImpl /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/include/mlir/IR/Operation.h:1010:5 # | llvm#21 0x0000c0af5641cd24 getResult /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/include/mlir/IR/Operation.h:407:54 # | llvm#22 0x0000c0af5641cd24 mlir::OpTrait::detail::MultiResultTraitBase<mlir::gpu::WarpExecuteOnLane0Op, mlir::OpTrait::VariadicResults>::getResult(unsigned int) /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/include/mlir/IR/OpDefinition.h:638:62 # | llvm#23 0x0000c0af56426b60 getType /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/include/mlir/IR/Value.h:63:33 # | llvm#24 0x0000c0af56426b60 getType /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/include/mlir/IR/Value.h:105:39 # | llvm#25 0x0000c0af56426b60 (anonymous namespace)::LoadDistribution::matchAndRewrite(mlir::gpu::WarpExecuteOnLane0Op, mlir::PatternRewriter&) const /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/mlir/lib/Dialect/XeGPU/Transforms/XeGPUSubgroupDistribute.cpp:991:55 ... ```
Bertik23
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Nov 5, 2025
llvm#164955 has a use-after-scope (https://lab.llvm.org/buildbot/#/builders/169/builds/16454): ``` ==mlir-opt==3940651==ERROR: AddressSanitizer: stack-use-after-scope on address 0x6e1f6ba5c878 at pc 0x6336b214912a bp 0x7ffe607f1670 sp 0x7ffe607f1668 READ of size 4 at 0x6e1f6ba5c878 thread T0 #0 0x6336b2149129 in size /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/include/llvm/ADT/SmallVector.h:80:32 #1 0x6336b2149129 in operator[] /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/include/llvm/ADT/SmallVector.h:299:5 #2 0x6336b2149129 in populateBoundsForShapedValueDim /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/mlir/lib/Dialect/MemRef/IR/ValueBoundsOpInterfaceImpl.cpp:113:43 ... ``` This patch attempts to fix-forward by stack-allocating reassocIndices, instead of taking a reference to a return value.
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This addresses the comments from #1 that were made after merging.