[LV] Record GEP widening decisions in recipe (NFCI)

InnerLoopVectorizer's code called during VPlan execution still relies on
original IR's def-use relations to decide which vector code to generate,
limiting VPlan transformations ability to modify def-use relations and still
have ILV generate the vector code.
This commit moves GEP operand queries controlling how GEPs are widened to a
dedicated recipe and extracts GEP widening code to its own ILV method taking
those recorded decisions as arguments. This reduces ingredient def-use usage by
ILV as a step towards full VPlan-based def-use relations.

Differential revision: https://reviews.llvm.org/D69067

1 files changed, 5 insertions, 5 deletions

diff --git a/llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp b/llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp
index f5894a4f10f..2b15e627058 100644
--- a/llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp
+++ b/llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp
@@ -89,8 +89,8 @@ TEST_F(VPlanHCFGTest, testBuildHCFGInnerLoop) {
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(Plan, &Inductions,
-                                                 DeadInstructions);
+  VPlanHCFGTransforms::VPInstructionsToVPRecipes(
+      LI->getLoopFor(LoopHeader), Plan, &Inductions, DeadInstructions);
 }
 
 TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
@@ -119,8 +119,8 @@ TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(Plan, &Inductions,
-                                                 DeadInstructions);
+  VPlanHCFGTransforms::VPInstructionsToVPRecipes(
+      LI->getLoopFor(LoopHeader), Plan, &Inductions, DeadInstructions);
 
   VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
   EXPECT_NE(nullptr, Entry->getSingleSuccessor());
@@ -136,7 +136,7 @@ TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
   auto *Phi = dyn_cast<VPWidenPHIRecipe>(&*Iter++);
   EXPECT_NE(nullptr, Phi);
 
-  auto *Idx = dyn_cast<VPWidenRecipe>(&*Iter++);
+  auto *Idx = dyn_cast<VPWidenGEPRecipe>(&*Iter++);
   EXPECT_NE(nullptr, Idx);
 
   auto *Load = dyn_cast<VPWidenMemoryInstructionRecipe>(&*Iter++);