Assertion `!instructionStartCache_.empty()' failed #175
Description
When trying to compile a program using tcecc I get the following error message:
rother@pikachu:~/Documents/TTA/GBP_TTA/tta_bug$ tcecc --version
tcecc - TCE retargetable compiler 1.25
rother@pikachu:~/Documents/TTA/GBP_TTA/tta_bug$ tcecc -x c++ -O3 -a baseline.adf -o gbp.tpef gbp.cpp
llvm-tce: CodeSection.cc:131: void TPEF::CodeSection::initInstructionCache() const: Assertion `!instructionStartCache_.empty()' failed.
This looks like a compiler bug to me.
Minimal example to reproduce this bug:
gbp.cpp
#include "fpm_tta/fixed.hpp"
namespace ff = fpm;
using position_t = fpm::fixed<int32_t, int32_t, 16>;
volatile int32_t antennaPositions[20];
int main()
{
position_t *antennaPositions = (position_t*)antennaPositions;
position_t beamlimitMaxRangeDist = antennaPositions[1];
volatile int *tmp = (volatile int*)0x200;
*tmp = (volatile int)beamlimitMaxRangeDist;
return 0;
}fpm_tta/fixed.hpp
#ifndef FPM_FIXED_HPP
#define FPM_FIXED_HPP
#include <stdint.h> //note: not int64_t on TTA!
namespace fpm
{
template <typename BaseType, typename IntermediateType, unsigned int FractionBits>
class fixed
{
static constexpr BaseType FRACTION_MULT = BaseType(1) << FractionBits;
public:
template <typename T>
constexpr inline explicit operator T() const noexcept
{
return static_cast<T>(m_value) / FRACTION_MULT;
}
private:
BaseType m_value;
};
} // namespace fpm
#endifLet me know if you need any further information!