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Diffstat (limited to 'lib/Target/NVPTX/NVPTXSplitBBatBar.cpp')
-rw-r--r--lib/Target/NVPTX/NVPTXSplitBBatBar.cpp73
1 files changed, 0 insertions, 73 deletions
diff --git a/lib/Target/NVPTX/NVPTXSplitBBatBar.cpp b/lib/Target/NVPTX/NVPTXSplitBBatBar.cpp
deleted file mode 100644
index d4a778ca11..0000000000
--- a/lib/Target/NVPTX/NVPTXSplitBBatBar.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-//===- NVPTXSplitBBatBar.cpp - Split BB at Barrier --*- C++ -*--===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-// Split basic blocks so that a basic block that contains a barrier instruction
-// only contains the barrier instruction.
-//
-//===----------------------------------------------------------------------===//
-
-#include "NVPTXSplitBBatBar.h"
-#include "NVPTXUtilities.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/InstIterator.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/IntrinsicInst.h"
-#include "llvm/IR/Intrinsics.h"
-
-using namespace llvm;
-
-namespace llvm { FunctionPass *createSplitBBatBarPass(); }
-
-char NVPTXSplitBBatBar::ID = 0;
-
-bool NVPTXSplitBBatBar::runOnFunction(Function &F) {
-
- SmallVector<Instruction *, 4> SplitPoints;
- bool changed = false;
-
- // Collect all the split points in SplitPoints
- for (Function::iterator BI = F.begin(), BE = F.end(); BI != BE; ++BI) {
- BasicBlock::iterator IB = BI->begin();
- BasicBlock::iterator II = IB;
- BasicBlock::iterator IE = BI->end();
-
- // Skit the first instruction. No splitting is needed at this
- // point even if this is a bar.
- while (II != IE) {
- if (IntrinsicInst *inst = dyn_cast<IntrinsicInst>(II)) {
- Intrinsic::ID id = inst->getIntrinsicID();
- // If this is a barrier, split at this instruction
- // and the next instruction.
- if (llvm::isBarrierIntrinsic(id)) {
- if (II != IB)
- SplitPoints.push_back(II);
- II++;
- if ((II != IE) && (!II->isTerminator())) {
- SplitPoints.push_back(II);
- II++;
- }
- continue;
- }
- }
- II++;
- }
- }
-
- for (unsigned i = 0; i != SplitPoints.size(); i++) {
- changed = true;
- Instruction *inst = SplitPoints[i];
- inst->getParent()->splitBasicBlock(inst, "bar_split");
- }
-
- return changed;
-}
-
-// This interface will most likely not be necessary, because this pass will
-// not be invoked by the driver, but will be used as a prerequisite to
-// another pass.
-FunctionPass *llvm::createSplitBBatBarPass() { return new NVPTXSplitBBatBar(); }