[all-commits] [llvm/llvm-project] bc9f4e: [LTO] Fix used before intialised warning (#143705)

[David Spickett via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bc9f4edf47d2cbed3b1ba7a61d1497dded91ed22
      https://github.com/llvm/llvm-project/commit/bc9f4edf47d2cbed3b1ba7a61d1497dded91ed22
  Author: David Spickett <david.spickett at linaro.org>
  Date:   2025-06-11 (Wed, 11 Jun 2025)

  Changed paths:
    M llvm/include/llvm/Transforms/IPO/FunctionImport.h

  Log Message:
  -----------
  [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.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications