https://bugs.llvm.org/show_bug.cgi?id=35905
Bug ID: 35905
Summary: [Value Propagation] Test case seems to get into an
infinite loop and seg faults.
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: pauls...@linux.vnet.ibm.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19655
--> https://bugs.llvm.org/attachment.cgi?id=19655&action=edit
reduced testcase
...
#251 0x000002aa3de147e0 llvm::matchSelectPattern(llvm::Value*, llvm::Value*&,
llvm::Value*&, llvm::Instruction::CastOps*)
(/root/llvm/build/llvm-dev/bin/opt+0x5947e0)
#252 0x000002aa3de13902 matchSelectPattern(llvm::CmpInst::Predicate,
llvm::FastMathFlags, llvm::Value*, llvm::Value*, llvm::Value*, llvm::Value*,
llvm::Value*&, llvm::Value*&) (/root/llvm/build/llvm-dev/bin/opt+0x593902)
#253 0x000002aa3de147e0 llvm::matchSelectPattern(llvm::Value*, llvm::Value*&,
llvm::Value*&, llvm::Instruction::CastOps*)
(/root/llvm/build/llvm-dev/bin/opt+0x5947e0)
#254 0x000002aa3de13902 matchSelectPattern(llvm::CmpInst::Predicate,
llvm::FastMathFlags, llvm::Value*, llvm::Value*, llvm::Value*, llvm::Value*,
llvm::Value*&, llvm::Value*&) (/root/llvm/build/llvm-dev/bin/opt+0x593902)
#255 0x000002aa3de147e0 llvm::matchSelectPattern(llvm::Value*, llvm::Value*&,
llvm::Value*&, llvm::Instruction::CastOps*)
(/root/llvm/build/llvm-dev/bin/opt+0x5947e0)
Stack dump:
...
bin/opt tc_value_prop.ll -O3 -S -mtriple=s390x-linux-gnu -mcpu=z13
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