[PATCH] D65701: [Attributor][Fix] Resolve various liveness issues
Nico Weber via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Aug 5 08:29:20 PDT 2019
thakis added a comment.
msan reports an uninitialized read: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/34088/steps/check-llvm%20msan/logs/stdio
FAIL: LLVM :: Transforms/FunctionAttrs/liveness.ll (26259 of 32933)
******************** TEST 'LLVM :: Transforms/FunctionAttrs/liveness.ll' FAILED ********************
Script:
--
: 'RUN: at line 1'; /b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/opt -attributor --attributor-disable=false -S < /b/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/FunctionAttrs/liveness.ll | /b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/FileCheck /b/sanitizer-x86_64-linux-fast/build/llvm/test/Transforms/FunctionAttrs/liveness.ll
--
Exit Code: 2
Command Output (stderr):
--
==43047==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0xe558f2 in llvm::CallSiteBase<llvm::Function const, llvm::BasicBlock const, llvm::Value const, llvm::User const, llvm::Use const, llvm::Instruction const, llvm::CallInst const, llvm::InvokeInst const, llvm::CallBrInst const, llvm::Use const*>::get(llvm::Value const*) /b/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/IR/CallSite.h:74:18
#1 0x5652b4f in CallSiteBase /b/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/IR/CallSite.h:66:46
#2 0x5652b4f in ImmutableCallSite /b/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/IR/CallSite.h:904
#3 0x5652b4f in AAReturnedValuesImpl::checkForallReturnedValues(std::__1::function<bool (llvm::Value&, llvm::SmallPtrSetImpl<llvm::ReturnInst*> const&)>&) const /b/sanitizer-x86_64-linux-fast/build/llvm/lib/Transforms/IPO/Attributor.cpp:723
#4 0x5651e4a in getAssumedUniqueReturnValue /b/sanitizer-x86_64-linux-fast/build/llvm/lib/Transforms/IPO/Attributor.cpp:705:8
#5 0x5651e4a in AAReturnedValuesImpl::manifest(llvm::Attributor&) /b/sanitizer-x86_64-linux-fast/build/llvm/lib/Transforms/IPO/Attributor.cpp:649
#6 0x566ed94 in llvm::Attributor::run() /b/sanitizer-x86_64-linux-fast/build/llvm/lib/Transforms/IPO/Attributor.cpp:2450:36
#7 0x567d1d8 in runAttributorOnModule(llvm::Module&) /b/sanitizer-x86_64-linux-fast/build/llvm/lib/Transforms/IPO/Attributor.cpp:2687:12
#8 0x5688e9c in (anonymous namespace)::AttributorLegacyPass::runOnModule(llvm::Module&) /b/sanitizer-x86_64-linux-fast/build/llvm/lib/Transforms/IPO/Attributor.cpp:2710:12
#9 0x5420abd in runOnModule /b/sanitizer-x86_64-linux-fast/build/llvm/lib/IR/LegacyPassManager.cpp:1750:27
#10 0x5420abd in llvm::legacy::PassManagerImpl::run(llvm::Module&) /b/sanitizer-x86_64-linux-fast/build/llvm/lib/IR/LegacyPassManager.cpp:1863
#11 0x9d06a7 in main /b/sanitizer-x86_64-linux-fast/build/llvm/tools/opt/opt.cpp:892:12
#12 0x7f4b2ca602e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
#13 0x907c59 in _start (/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/opt+0x907c59)
SUMMARY: MemorySanitizer: use-of-uninitialized-value /b/sanitizer-x86_64-linux-fast/build/llvm/include/llvm/IR/CallSite.h:74:18 in llvm::CallSiteBase<llvm::Function const, llvm::BasicBlock const, llvm::Value const, llvm::User const, llvm::Use const, llvm::Instruction const, llvm::CallInst const, llvm::InvokeInst const, llvm::CallBrInst const, llvm::Use const*>::get(llvm::Value const*)
Exiting
That run was at r367856 so it already had r367793 which maybe was supposed to fix this.
Please take a look!
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D65701/new/
https://reviews.llvm.org/D65701
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