https://bugs.llvm.org/show_bug.cgi?id=48699
Bug ID: 48699
Summary: LLVM crashes when returning large values by-val an
building for sparc64
Product: libraries
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: Sparc
Assignee: unassignedb...@nondot.org
Reporter: simonas+llvm....@kazlauskas.me
CC: llvm-bugs@lists.llvm.org
Code
define i2048 @test() unnamed_addr {
start:
ret i2048 0
}
built with `llc -mtriple=sparc64` will fail with the following assertion:
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-trunk/bin/llc -o
./output.s -mtriple=sparc64 <source>
1. Running pass 'Function Pass Manager' on module '<source>'.
2. Running pass 'Remove dead machine instructions' on function '@test'
<snip>
#4 0x000055c9d8d52d74 (anonymous
namespace)::DeadMachineInstructionElim::eliminateDeadMI(llvm::MachineFunction&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x1bc1d74)
#5 0x000055c9d8d53313 (anonymous
namespace)::DeadMachineInstructionElim::runOnMachineFunction(llvm::MachineFunction&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x1bc2313)
#6 0x000055c9d8e5e2c8
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x1ccd2c8)
#7 0x000055c9d92355e7 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x20a45e7)
#8 0x000055c9d9235d01 llvm::FPPassManager::runOnModule(llvm::Module&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x20a4d01)
#9 0x000055c9d923507f llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x20a407f)
#10 0x000055c9d79aea4a compileModule(char**, llvm::LLVMContext&)
(/opt/compiler-explorer/clang-trunk/bin/llc+0x81da4a)
#11 0x000055c9d78ee267 main
(/opt/compiler-explorer/clang-trunk/bin/llc+0x75d267)
<snip>
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