[clang] [llvm] [LLVM][SROA] Teach SROA how to "bitcast" between fixed and scalable vectors. (PR #130973)

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git-clang-format --diff cd043e4fbe6125df4cb4993c625fa5e46194e478 cb6a620c93b3809742fd067233844221e74dde4f --extensions cpp,c,h -- clang/test/CodeGen/RISCV/attr-riscv-rvv-vector-bits-less-8-call.c clang/test/CodeGen/RISCV/attr-riscv-rvv-vector-bits-less-8-cast.c clang/test/CodeGen/RISCV/attr-rvv-vector-bits-cast.c clang/test/CodeGen/attr-arm-sve-vector-bits-cast.c llvm/include/llvm/IR/Attributes.h llvm/include/llvm/IR/DerivedTypes.h llvm/lib/IR/AttributeImpl.h llvm/lib/IR/Attributes.cpp llvm/lib/Transforms/Scalar/SROA.cpp
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diff --git a/llvm/include/llvm/IR/DerivedTypes.h b/llvm/include/llvm/IR/DerivedTypes.h
index 6c8f416708..f8b79eea19 100644
--- a/llvm/include/llvm/IR/DerivedTypes.h
+++ b/llvm/include/llvm/IR/DerivedTypes.h
@@ -556,7 +556,7 @@ public:
 
   /// This static method returns a VectorType with the same size-in-bits as
   /// SizeTy but with an element type that matches the scalar type of EltTy.
-  static VectorType* getWithSizeAndScalar(VectorType *SizeTy, Type *EltTy) {
+  static VectorType *getWithSizeAndScalar(VectorType *SizeTy, Type *EltTy) {
     if (SizeTy->getScalarType() == EltTy->getScalarType())
       return SizeTy;
 
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp
index 81a2b38410..2e758caa65 100644
--- a/llvm/lib/Transforms/Scalar/SROA.cpp
+++ b/llvm/lib/Transforms/Scalar/SROA.cpp
@@ -2198,8 +2198,7 @@ checkVectorTypesForPromotion(Partition &P, const DataLayout &DL,
                              SmallVectorImpl<VectorType *> &CandidateTys,
                              bool HaveCommonEltTy, Type *CommonEltTy,
                              bool HaveVecPtrTy, bool HaveCommonVecPtrTy,
-                             VectorType *CommonVecPtrTy,
-                             unsigned VScale) {
+                             VectorType *CommonVecPtrTy, unsigned VScale) {
   // If we didn't find a vector type, nothing to do here.
   if (CandidateTys.empty())
     return nullptr;
@@ -2311,9 +2310,9 @@ static VectorType *createAndCheckVectorTypesForPromotion(
     }
   }
 
-  return checkVectorTypesForPromotion(P, DL, CandidateTys, HaveCommonEltTy,
-                                      CommonEltTy, HaveVecPtrTy,
-                                      HaveCommonVecPtrTy, CommonVecPtrTy, VScale);
+  return checkVectorTypesForPromotion(
+      P, DL, CandidateTys, HaveCommonEltTy, CommonEltTy, HaveVecPtrTy,
+      HaveCommonVecPtrTy, CommonVecPtrTy, VScale);
 }
 
 /// Test whether the given alloca partitioning and range of slices can be
@@ -2325,7 +2324,8 @@ static VectorType *createAndCheckVectorTypesForPromotion(
 /// SSA value. We only can ensure this for a limited set of operations, and we
 /// don't want to do the rewrites unless we are confident that the result will
 /// be promotable, so we have an early test here.
-static VectorType *isVectorPromotionViable(Partition &P, const DataLayout &DL, unsigned VScale) {
+static VectorType *isVectorPromotionViable(Partition &P, const DataLayout &DL,
+                                           unsigned VScale) {
   // Collect the candidate types for vector-based promotion. Also track whether
   // we have different element types.
   SmallVector<VectorType *, 4> CandidateTys;

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https://github.com/llvm/llvm-project/pull/130973