[LTO] Fix used before intialised warning (#143705)
For whatever reason I can't reproduce this locally but I can on Compiler
Explorer (https://godbolt.org/z/nfv4b83q6) and on our flang gcc bot
(https://lab.llvm.org/buildbot/#/builders/130/builds/13683/steps/5/logs/stdio).
In file included from ../llvm-project/llvm/include/llvm/LTO/LTO.h:33,
from
../llvm-project/clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp:29:
../llvm-project/llvm/include/llvm/Transforms/IPO/FunctionImport.h: In
constructor ‘llvm::FunctionImporter::ImportListsTy::ImportListsTy()’:
../llvm-project/llvm/include/llvm/Transforms/IPO/FunctionImport.h:275:33:
warning: member ‘llvm::FunctionImporter::ImportListsTy::ImportIDs’ is
used uninitialized [-Wuninitialized]
275 | ImportListsTy() : EmptyList(ImportIDs) {}
| ^~~~~~~~~
../llvm-project/llvm/include/llvm/Transforms/IPO/FunctionImport.h: In
constructor
‘llvm::FunctionImporter::ImportListsTy::ImportListsTy(size_t)’:
../llvm-project/llvm/include/llvm/Transforms/IPO/FunctionImport.h:276:44:
warning: member ‘llvm::FunctionImporter::ImportListsTy::ImportIDs’ is
used uninitialized [-Wuninitialized]
276 | ImportListsTy(size_t Size) : EmptyList(ImportIDs), ListsImpl(Size)
{}
| ^~~~~~~~~
ImportIDs was being used during construction of EmptyList, before
ImportIDs itself had been constructed.
