From f75a7d3fbf7fbb3071f45e248d3fb93312ec4fbd Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 28 May 2010 01:14:11 +0000 Subject: Eliminate the restriction that the array size in an alloca must be i32. This will help reduce the amount of casting required on 64-bit targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104911 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp') diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index fbe601f2db..90ad7f71f7 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -2643,12 +2643,13 @@ void SelectionDAGBuilder::visitAlloca(const AllocaInst &I) { SDValue AllocSize = getValue(I.getArraySize()); - AllocSize = DAG.getNode(ISD::MUL, getCurDebugLoc(), AllocSize.getValueType(), - AllocSize, - DAG.getConstant(TySize, AllocSize.getValueType())); - EVT IntPtr = TLI.getPointerTy(); - AllocSize = DAG.getZExtOrTrunc(AllocSize, getCurDebugLoc(), IntPtr); + if (AllocSize.getValueType() != IntPtr) + AllocSize = DAG.getZExtOrTrunc(AllocSize, getCurDebugLoc(), IntPtr); + + AllocSize = DAG.getNode(ISD::MUL, getCurDebugLoc(), IntPtr, + AllocSize, + DAG.getConstant(TySize, IntPtr)); // Handle alignment. If the requested alignment is less than or equal to // the stack alignment, ignore it. If the size is greater than or equal to -- cgit v1.2.3-18-g5258