[llvm] Consolidate infrastructure for exanding scalable intrinsics [NFC] (PR #195309)

[via llvm-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

The build failed before running any tests. Click on a failure below to see the details.

<details>
<summary>lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerVectorIntrinsics.cpp.o</summary>

```
FAILED: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerVectorIntrinsics.cpp.o
sccache /opt/llvm/bin/clang++ -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/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/Transforms/Utils -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerVectorIntrinsics.cpp.o -MF lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerVectorIntrinsics.cpp.o.d -o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerVectorIntrinsics.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils/LowerVectorIntrinsics.cpp
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils/LowerVectorIntrinsics.cpp:35:48: error: 'InsertPosition' is deprecated: Use BasicBlock::iterators for insertion instead [-Werror,-Wdeprecated-declarations]
35 |   PHINode *Vec = PHINode::Create(VecTy, 2, "", BodyIP);
|                                                ^~~~~~
|                                                BasicBlock::iterator
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/Instruction.h:56:12: note: 'InsertPosition' has been explicitly marked deprecated here
56 |   LLVM_ABI LLVM_DEPRECATED("Use BasicBlock::iterators for insertion instead",
|            ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Support/Compiler.h:250:50: note: expanded from macro 'LLVM_DEPRECATED'
250 | #define LLVM_DEPRECATED(MSG, FIX) __attribute__((deprecated(MSG, FIX)))
|                                                  ^
1 error generated.
```
</details>
<details>
<summary>lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o</summary>

```
FAILED: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o
sccache /opt/llvm/bin/clang++ -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/home/gha/actions-runner/_work/llvm-project/llvm-project/build/lib/Transforms/Utils -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o -MF lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o.d -o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils/LoopUtils.cpp
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils/LoopUtils.cpp:1360:58: error: 'InsertPosition' is deprecated: Use BasicBlock::iterators for insertion instead [-Werror,-Wdeprecated-declarations]
1360 |   PHINode *AccPhi = PHINode::Create(EltTy, 2, "rdx.acc", BodyIP);
|                                                          ^~~~~~
|                                                          BasicBlock::iterator
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/Instruction.h:56:12: note: 'InsertPosition' has been explicitly marked deprecated here
56 |   LLVM_ABI LLVM_DEPRECATED("Use BasicBlock::iterators for insertion instead",
|            ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Support/Compiler.h:250:50: note: expanded from macro 'LLVM_DEPRECATED'
250 | #define LLVM_DEPRECATED(MSG, FIX) __attribute__((deprecated(MSG, FIX)))
|                                                  ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Transforms/Utils/LoopUtils.cpp:1369:23: error: 'BranchInst' is deprecated: Use UncondBrInst/CondBrInst/Instruction instead [-Werror,-Wdeprecated-declarations]
1369 |   auto *ExitBr = cast<BranchInst>(LoopBB->getTerminator());
|                       ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/Instructions.h:3075:7: note: 'BranchInst' has been explicitly marked deprecated here
3075 | class LLVM_DEPRECATED("Use UncondBrInst/CondBrInst/Instruction instead", "")
|       ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Support/Compiler.h:250:50: note: expanded from macro 'LLVM_DEPRECATED'
250 | #define LLVM_DEPRECATED(MSG, FIX) __attribute__((deprecated(MSG, FIX)))
|                                                  ^
2 errors generated.
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/195309