From db8b95a4fa86b23c540a05bef5f5b17fd46fd3b9 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 14 Nov 2008 00:33:17 +0000 Subject: For post-regalloc scheduling, remove the instructions from the block before re-inserting them. llvm-svn: 59281 --- llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp') diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp index d60dd493576..0c679734ea1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp @@ -675,6 +675,12 @@ void ScheduleDAG::EmitCrossRCCopy(SUnit *SU, /// EmitSchedule - Emit the machine code in scheduled order. MachineBasicBlock *ScheduleDAG::EmitSchedule() { + // For post-regalloc scheduling, we're rescheduling the instructions in the + // block, so start by removing them from the block. + if (!DAG) + while (!BB->empty()) + BB->remove(BB->begin()); + DenseMap VRBaseMap; DenseMap CopyVRBaseMap; for (unsigned i = 0, e = Sequence.size(); i != e; i++) { -- cgit v1.2.3