https://llvm.org/bugs/show_bug.cgi?id=30366
Bug ID: 30366
Summary: Assertion `this->getType()->isVectorTy() && "Only
valid for vectors!"' failed.
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: mikael.hol...@ericsson.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 17254
--> https://llvm.org/bugs/attachment.cgi?id=17254&action=edit
Reproducer
Instcombine crashes on the attached input if doing
opt -S red.ll -instcombine
#0 0x00007ffff67bfc37 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007ffff67c3028 in __GI_abort () at abort.c:89
#2 0x00007ffff67b8bf6 in __assert_fail_base (fmt=0x7ffff69093b8 "%s%s%s:%u:
%s%sAssertion `%s' failed.\n%n",
assertion=assertion@entry=0x39957c6 "this->getType()->isVectorTy() &&
\"Only valid for vectors!\"", file=file@entry=0x3994909
"../lib/IR/Constants.cpp", line=line@entry=1295,
function=function@entry=0x3995801 "llvm::Constant
*llvm::Constant::getSplatValue() const") at assert.c:92
#3 0x00007ffff67b8ca2 in __GI___assert_fail (assertion=0x39957c6
"this->getType()->isVectorTy() && \"Only valid for vectors!\"", file=0x3994909
"../lib/IR/Constants.cpp",
line=1295, function=0x3995801 "llvm::Constant
*llvm::Constant::getSplatValue() const") at assert.c:101
#4 0x00000000021ba5c8 in llvm::Constant::getSplatValue (this=0x4bff360) at
../lib/IR/Constants.cpp:1295
#5 0x00000000021ba6c6 in llvm::Constant::getUniqueInteger (this=0x4bff360) at
../lib/IR/Constants.cpp:1318
#6 0x00000000024f0cc6 in foldUDivShl (Op0=0x4c1a3c8, Op1=0x4bff3a8, I=...,
IC=...) at ../lib/Transforms/InstCombine/InstCombineMulDivRem.cpp:1007
#7 0x00000000024ed542 in llvm::InstCombiner::visitUDiv (this=0x7fffffffcfc0,
I=...) at ../lib/Transforms/InstCombine/InstCombineMulDivRem.cpp:1109
#8 0x0000000002472883 in llvm::InstVisitor<llvm::InstCombiner,
llvm::Instruction*>::visit (this=0x7fffffffcfc0, I=...) at
../include/llvm/IR/Instruction.def:130
#9 0x000000000246dbbc in llvm::InstCombiner::run (this=0x7fffffffcfc0) at
../lib/Transforms/InstCombine/InstructionCombining.cpp:2932
#10 0x000000000246e5f4 in combineInstructionsOverFunction (F=..., Worklist=...,
AA=0x4c1a360, AC=..., TLI=..., DT=..., TTI=..., ExpensiveCombines=true, LI=0x0)
at ../lib/Transforms/InstCombine/InstructionCombining.cpp:3167
#11 0x000000000246e89f in llvm::InstructionCombiningPass::runOnFunction
(this=0x4c14940, F=...) at
../lib/Transforms/InstCombine/InstructionCombining.cpp:3225
#12 0x00000000022ba68d in llvm::FPPassManager::runOnFunction (this=0x4c15390,
F=...) at ../lib/IR/LegacyPassManager.cpp:1533
#13 0x00000000022ba9c5 in llvm::FPPassManager::runOnModule (this=0x4c15390,
M=...) at ../lib/IR/LegacyPassManager.cpp:1554
#14 0x00000000022bb1ae in (anonymous namespace)::MPPassManager::runOnModule
(this=0x4bffc50, M=...) at ../lib/IR/LegacyPassManager.cpp:1610
#15 0x00000000022bacab in llvm::legacy::PassManagerImpl::run (this=0x4bff6d0,
M=...) at ../lib/IR/LegacyPassManager.cpp:1713
#16 0x00000000022bb6f1 in llvm::legacy::PassManager::run (this=0x7fffffffdc20,
M=...) at ../lib/IR/LegacyPassManager.cpp:1744
#17 0x0000000000a4d689 in main (argc=4, argv=0x7fffffffe108) at
../tools/opt/opt.cpp:705
up a couple of times:
#4 0x00000000021ba5c8 in llvm::Constant::getSplatValue (this=0x4bff360) at
../lib/IR/Constants.cpp:1295
1295 assert(this->getType()->isVectorTy() && "Only valid for vectors!");
(gdb) call dump()
i16 shl (i16 1, i16 ptrtoint ([1 x i16]* @b to i16))
(gdb) up
#5 0x00000000021ba6c6 in llvm::Constant::getUniqueInteger (this=0x4bff360) at
../lib/IR/Constants.cpp:1318
1318 assert(this->getSplatValue() && "Doesn't contain a unique integer!");
(gdb) l
1313 }
1314
1315 const APInt &Constant::getUniqueInteger() const {
1316 if (const ConstantInt *CI = dyn_cast<ConstantInt>(this))
1317 return CI->getValue();
1318 assert(this->getSplatValue() && "Doesn't contain a unique integer!");
1319 const Constant *C = this->getAggregateElement(0U);
1320 assert(C && isa<ConstantInt>(C) && "Not a vector of numbers!");
1321 return cast<ConstantInt>(C)->getValue();
1322 }
(gdb)
so it expects a constant in Constant::getUniqueInteger but it's a constant
expression instead and then it crashes?
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