http://llvm.org/bugs/show_bug.cgi?id=15818
Bug ID: 15818
Summary: Regression afer commit 179786
(InstCombiner::visitExtractElementInst() enhancement)
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 10404
--> http://llvm.org/bugs/attachment.cgi?id=10404&action=edit
Reproducer
> llvm-as instcombine_bug.ll
> opt -instcombine instcombine_bug.bc -disable-output
Instruction does not dominate all uses!
%sub_b_load28_to_int32_ = add i32 %b_load28_to_int32, -2
%0 = extractelement <8 x float> %floatval.i.i, i32 %sub_b_load28_to_int32_
Broken module found, compilation aborted!
0 opt 0x00000000012219c2 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 opt 0x0000000001221619
2 libpthread.so.0 0x00000037eb40efe0
3 libc.so.6 0x00000037eac35935 gsignal + 53
4 libc.so.6 0x00000037eac370e8 abort + 328
5 opt 0x00000000011d5e96
6 opt 0x00000000011deab2
7 opt 0x00000000011bcc7f
llvm::FPPassManager::runOnFunction(llvm::Function&) + 655
8 opt 0x00000000011bcccb
llvm::FPPassManager::runOnModule(llvm::Module&) + 43
9 opt 0x00000000011bc777
llvm::MPPassManager::runOnModule(llvm::Module&) + 663
10 opt 0x00000000011bc937 llvm::PassManagerImpl::run(llvm::Module&)
+ 231
11 opt 0x00000000005762b4 main + 3716
12 libc.so.6 0x00000037eac21735 __libc_start_main + 245
13 opt 0x0000000000586ca5
Stack dump:
0. Program arguments: opt -instcombine instcombine_bug.bc -disable-output
1. Running pass 'Function Pass Manager' on module 'instcombine_bug.bc'.
2. Running pass 'Module Verifier' on function
'@f_fu___un_3C_unf_3E_un_3C_unf_3E_unf'
Aborted (core dumped)
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