http://llvm.org/bugs/show_bug.cgi?id=16052
Bug ID: 16052
Summary: llvm/lib/Transforms/Scalar/SCCP.cpp: Assertion
`getLatticeValue() == forcedconstant && "Cannot move
from overdefined to constant!"' failed
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
test case by csmith/creduce; it has an undefined behaviour (missing return)
llvm 182077
int a;
int b;
static
int fn1 (p1) {
return p1 ? p1 : -p1;
}
int fn2 () {
a = fn2 ();
b = 8LL / a;
fn1 (b);
// return statement missing
}
% clang -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -O1 -x c g.c
g.c:12:1: warning: control reaches end of non-void function
}
^
clang: llvm/lib/Transforms/Scalar/SCCP.cpp:119: bool <anonymous
namespace>::LatticeVal::markConstant(llvm::Constant *): Assertion
`getLatticeValue() == forcedconstant && "Cannot move from overdefined to
constant!"' failed.
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