diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 23a9954..0630fd3 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -1324,7 +1324,8 @@ static void OptimizeGEPExpression(GetElementPtrInst *GEPI, break; } } - if (!hasConstantIndex) return; + // If this is a GEP &Alloca, 0, 0, forward subst the frame index into uses. + if (!hasConstantIndex && !isa<AllocaInst>(GEPI->getOperand(0))) return; // Otherwise, decompose the GEP instruction into multiplies and adds. Sum the // constant offset (which we now know is non-zero) and deal with it later. |