| //===- subzero/crosstest/insertelement.h - Helper for PNaCl workaround. ---===// |
| // |
| // The Subzero Code Generator |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Helper function to work around a potential stack overflow issue. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef INSERTELEMENT_H |
| #define INSERTELEMENT_H |
| |
| // Helper function to perform the insertelement bitcode instruction. The PNaCl |
| // ABI simplifications transform insertelement/extractelement instructions with |
| // a non-constant index into something involving alloca. This can cause a stack |
| // overflow if the alloca is inside a loop. |
| template <typename VectorType, typename ElementType> |
| void __attribute__((noinline)) |
| setElement(VectorType &Value, size_t Index, ElementType Element) { |
| Value[Index] = Element; |
| } |
| |
| #endif // INSERTELEMENT_H |
