[llvm] [llvm] Include ArrayRef.h in GenericCycleInfo.h (PR #213267)

[Timm Baeder via llvm-commits]

https://github.com/tbaederr created https://github.com/llvm/llvm-project/pull/213267

Try to fix the llvm-x86_64-debian-dylib builder, which has been broken for a while with:

```
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/clang++ -DLLVM_EXPORTS -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/b/1/llvm-x86_64-debian-dylib/build/lib/CodeGen -I/b/1/llvm-x86_64-debian-dylib/llvm-project/llvm/lib/CodeGen -I/b/1/llvm-x86_64-debian-dylib/build/include -I/b/1/llvm-x86_64-debian-dylib/llvm-project/llvm/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -std=c++17 -MD -MT lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/CodeGenPrepare.cpp.o -MF lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/CodeGenPrepare.cpp.o.d -o lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/CodeGenPrepare.cpp.o -c /b/1/llvm-x86_64-debian-dylib/llvm-project/llvm/lib/CodeGen/CodeGenPrepare.cpp
In file included from /b/1/llvm-x86_64-debian-dylib/llvm-project/llvm/lib/CodeGen/CodeGenPrepare.cpp:53:
In file included from /b/1/llvm-x86_64-debian-dylib/llvm-project/llvm/include/llvm/IR/CycleInfo.h:18:
/b/1/llvm-x86_64-debian-dylib/llvm-project/llvm/include/llvm/ADT/GenericCycleInfo.h:231:33: error: member reference base type 'ArrayRef' is not a structure or union
    return ArrayRef(BlockLayout).slice(Cyc.EntryBegin, Cyc.EntrySize);
           ~~~~~~~~~~~~~~~~~~~~~^~~~~~
```

see e.g. https://lab.llvm.org/buildbot/#/builders/60/builds/5422/steps/5/logs/stdio


I'm not sure if this will help or not, I can't reproduce this locally and nobody else seems to have the same problem(?).

>From 17a79eeb5ee35457bfbdd8a79aed21ed4276d213 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder at redhat.com>
Date: Fri, 31 Jul 2026 14:53:17 +0200
Subject: [PATCH] [llvm] Include ArrayRef.h in GenericCycleInfo.h

---
 llvm/include/llvm/ADT/GenericCycleInfo.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/include/llvm/ADT/GenericCycleInfo.h b/llvm/include/llvm/ADT/GenericCycleInfo.h
index 89ddaf70966e0..925bad4162139 100644
--- a/llvm/include/llvm/ADT/GenericCycleInfo.h
+++ b/llvm/include/llvm/ADT/GenericCycleInfo.h
@@ -28,6 +28,7 @@
 #ifndef LLVM_ADT_GENERICCYCLEINFO_H
 #define LLVM_ADT_GENERICCYCLEINFO_H
 
+#include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMapInfo.h"
 #include "llvm/ADT/GenericSSAContext.h"
 #include "llvm/ADT/GraphTraits.h"