[llvm] c3d2af0 - [VPlan] VPEVLBasedIVPHI is a VPSingleDefRecipe.

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2024-05-09T19:18:37+01:00
New Revision: c3d2af0f4e180e67c4c5dd0f83bed1ea226f4565

URL: https://github.com/llvm/llvm-project/commit/c3d2af0f4e180e67c4c5dd0f83bed1ea226f4565
DIFF: https://github.com/llvm/llvm-project/commit/c3d2af0f4e180e67c4c5dd0f83bed1ea226f4565.diff

LOG: [VPlan] VPEVLBasedIVPHI is a VPSingleDefRecipe.

VPEVLBasedIVPHIRecipe inherits from VPSingleDefRecipe. Add
VPEVLBasedIVPHISC to VPSingleDefRecipe::classof to make isa/dyn_cast &
co work as expected.

Split off https://github.com/llvm/llvm-project/pull/67934.

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/VPlan.h
    llvm/unittests/Transforms/Vectorize/VPlanTest.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 461d7ec59862a..0784665efd14b 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -841,6 +841,7 @@ class VPSingleDefRecipe : public VPRecipeBase, public VPValue {
   static inline bool classof(const VPRecipeBase *R) {
     switch (R->getVPDefID()) {
     case VPRecipeBase::VPDerivedIVSC:
+    case VPRecipeBase::VPEVLBasedIVPHISC:
     case VPRecipeBase::VPExpandSCEVSC:
     case VPRecipeBase::VPInstructionSC:
     case VPRecipeBase::VPReductionSC:

diff  --git a/llvm/unittests/Transforms/Vectorize/VPlanTest.cpp b/llvm/unittests/Transforms/Vectorize/VPlanTest.cpp
index eda4723f67b23..5c45d86130bdc 100644
--- a/llvm/unittests/Transforms/Vectorize/VPlanTest.cpp
+++ b/llvm/unittests/Transforms/Vectorize/VPlanTest.cpp
@@ -1530,5 +1530,13 @@ TEST(VPDoubleValueDefTest, traverseUseLists) {
   EXPECT_EQ(&DoubleValueDef, I3.getOperand(0)->getDefiningRecipe());
 }
 
+TEST(VPRecipeTest, CastToVPSingleDefRecipe) {
+  VPValue Start;
+  VPEVLBasedIVPHIRecipe R(&Start, {});
+  VPRecipeBase *B = &R;
+  EXPECT_TRUE(isa<VPSingleDefRecipe>(B));
+  // TODO: check other VPSingleDefRecipes.
+}
+
 } // namespace
 } // namespace llvm