https://llvm.org/bugs/show_bug.cgi?id=23992
Bug ID: 23992
Summary: CloneModule does not remap personality of a function
correctly
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Transformation Utilities
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 14537
--> https://llvm.org/bugs/attachment.cgi?id=14537&action=edit
testcase
It looks like the CloneModule utility function does not remap the personality
operand of a function correctly.
After cloning the module following assert is triggered when printing the module
with module->print(llvm::outs(), 0, true):
testCloneModule:
/localdev/aernoudt/programs/llvm/git/llvm/lib/IR/AsmWriter.cpp:203: void
predictValueUseListOrder(const llvm::Value*, const llvm::Function*,
{anonymous}::OrderMap&, llvm::UseListOrderStack&): Assertion `IDPair.first &&
"Unmapped value"' failed.
The unmapped value is the personality operand of the function testFunction.
The issue can be reproduced with the attached testcase (on a debug build of
llvm):
> clang++ -c -O3 -std=c++11 -emit-llvm -o test.bc test.cc
> g++ `llvm-config --cxxflags` -o testCloneModule testCloneModule.cc
> `llvm-config --ldflags` `llvm-config --system-libs --libs core ipo bitreader
> irreader`
> ./cloneModule
--> Fail: assert triggered
Disabling exceptions, which removes the personality operand of the function
testFunction makes the test pass:
> clang++ -c -O3 -std=c++11 -emit-llvm -DNO_EXCEPTIONS -fno-exceptions -o
> test.bc test.cc
> g++ `llvm-config --cxxflags` -o testCloneModule testCloneModule.cc
> `llvm-config --ldflags` `llvm-config --system-libs --libs core ipo bitreader
> irreader`
> ./cloneModule
--> Ok
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
