https://llvm.org/bugs/show_bug.cgi?id=28143
Bug ID: 28143
Summary: Redefinition of 'tan' provokes assert
Product: new-bugs
Version: trunk
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: carlo.berto...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
The following program:
extern int tan (void);
int main (void) {
tan();
return 0;
}
Compiled with:
clang t53.c -O
Returns the following assert
clang-3.9: /localhd/cbertol/trunk/src/include/llvm/IR/Instructions.h:1554:
llvm::Value *llvm::CallInst::getArgOperand(unsigned int) const: Assertion `i <
getNumArgOperands() && "Out of bounds!"' failed.
It looks like that llvm is trying to simplify 'tan' as if it were the math.h
declaration, and not the re-declaration.
Compiled on bare-metal ubuntu on power 8 with:
llvm a94e734
clang e03851a
Using clang 3.8.1 does not result in error, but linking error as 'tan' is not
defined.
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