forked from OSchip/llvm-project
[VPlanRecipeBase] Add eraseFromParent().
Reviewers: dcaballe, hsaito, mkuper, hfinkel Reviewed By: dcaballe Differential Revision: https://reviews.llvm.org/D48081 llvm-svn: 334951
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@ -225,6 +225,10 @@ void VPRecipeBase::insertBefore(VPRecipeBase *InsertPos) {
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Parent->getRecipeList().insert(InsertPos->getIterator(), this);
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}
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iplist<VPRecipeBase>::iterator VPRecipeBase::eraseFromParent() {
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return getParent()->getRecipeList().erase(getIterator());
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}
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void VPInstruction::generateInstruction(VPTransformState &State,
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unsigned Part) {
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IRBuilder<> &Builder = State.Builder;
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@ -556,6 +556,11 @@ public:
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/// Insert an unlinked recipe into a basic block immediately before
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/// the specified recipe.
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void insertBefore(VPRecipeBase *InsertPos);
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/// This method unlinks 'this' from the containing basic block and deletes it.
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///
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/// \returns an iterator pointing to the element after the erased one
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iplist<VPRecipeBase>::iterator eraseFromParent();
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};
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/// This is a concrete Recipe that models a single VPlan-level instruction.
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@ -40,5 +40,25 @@ TEST(VPInstructionTest, insertBefore) {
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CHECK_ITERATOR(VPBB1, I3, I2, I1);
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}
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TEST(VPInstructionTest, eraseFromParent) {
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VPInstruction *I1 = new VPInstruction(0, {});
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VPInstruction *I2 = new VPInstruction(1, {});
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VPInstruction *I3 = new VPInstruction(2, {});
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VPBasicBlock VPBB1;
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VPBB1.appendRecipe(I1);
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VPBB1.appendRecipe(I2);
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VPBB1.appendRecipe(I3);
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I2->eraseFromParent();
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CHECK_ITERATOR(VPBB1, I1, I3);
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I1->eraseFromParent();
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CHECK_ITERATOR(VPBB1, I3);
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I3->eraseFromParent();
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EXPECT_TRUE(VPBB1.empty());
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}
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} // namespace
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} // namespace llvm
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