[LLVMbugs] [Bug 18663] New: AggressiveAntiDepBreaker.cpp:574: bool llvm::AggressiveAntiDepBreaker::FindSuitableFreeRegisters(unsigned int, llvm::AggressiveAntiDepBreaker::RenameOrderType&, std::map<unsigned int, unsigned int>&): Assertion `IsSub && "Expecting group subregister"' fai
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Wed Jan 29 16:38:10 PST 2014
http://llvm.org/bugs/show_bug.cgi?id=18663
Bug ID: 18663
Summary: AggressiveAntiDepBreaker.cpp:574: bool
llvm::AggressiveAntiDepBreaker::FindSuitableFreeRegist
ers(unsigned int,
llvm::AggressiveAntiDepBreaker::RenameOrderType&,
std::map<unsigned int, unsigned int>&): Assertion
`IsSub && "Expecting group subregister"' fai
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Common Code Generator Code
Assignee: unassignedbugs at nondot.org
Reporter: hfinkel at anl.gov
CC: llvmbugs at cs.uiuc.edu
Classification: Unclassified
Created attachment 11973
--> http://llvm.org/bugs/attachment.cgi?id=11973&action=edit
bugpoint reduced test case
The aggressive anti-dep breaker fails on the attached (bugpoint-reduced) input:
llc -mcpu=a2 aab-ppc-a2-bugpoint-reduced-simplified.ll
AggressiveAntiDepBreaker.cpp:574: bool
llvm::AggressiveAntiDepBreaker::FindSuitableFreeRegisters(unsigned int,
llvm::AggressiveAntiDepBreaker::RenameOrderType&, std::map<unsigned int,
unsigned int>&): Assertion `IsSub && "Expecting group subregister"' failed.
...
2. Running pass 'Post RA top-down list latency scheduler' on function
'@_ZN4Foam3CSVINS_6VectorIdEEE4readEv'
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