llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Amr Hesham (AmrDeveloper)

<details>
<summary>Changes</summary>

This change adds support for splat op for VectorType

Issue https://github.com/llvm/llvm-project/issues/136487

---
Full diff: https://github.com/llvm/llvm-project/pull/139827.diff


7 Files Affected:

- (modified) clang/include/clang/CIR/Dialect/IR/CIROps.td (+33) 
- (modified) clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp (+8) 
- (modified) clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp (+34-1) 
- (modified) clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.h (+10) 
- (modified) clang/test/CIR/CodeGen/vector-ext.cpp (+65-1) 
- (modified) clang/test/CIR/CodeGen/vector.cpp (+65-1) 
- (modified) clang/test/CIR/IR/vector.cir (+34) 


``````````diff
diff --git a/clang/include/clang/CIR/Dialect/IR/CIROps.td 
b/clang/include/clang/CIR/Dialect/IR/CIROps.td
index 9f5fa266742e8..463ef929509bd 100644
--- a/clang/include/clang/CIR/Dialect/IR/CIROps.td
+++ b/clang/include/clang/CIR/Dialect/IR/CIROps.td
@@ -2037,4 +2037,37 @@ def VecExtractOp : CIR_Op<"vec.extract", [Pure,
   let hasFolder = 1;
 }
 
+
+//===----------------------------------------------------------------------===//
+// VecSplat
+//===----------------------------------------------------------------------===//
+
+// cir.vec.splat is a separate operation from cir.vec.create because more
+// efficient LLVM IR can be generated for it, and because some optimization and
+// analysis passes can benefit from knowing that all elements of the vector
+// have the same value.
+
+def VecSplatOp : CIR_Op<"vec.splat", [Pure,
+  TypesMatchWith<"type of 'value' matches element type of 'result'", "result",
+                 "value", "cast<VectorType>($_self).getElementType()">]> {
+
+  let summary = "Convert a scalar into a vector";
+  let description = [{
+    The `cir.vec.splat` operation creates a vector value from a scalar value.
+    All elements of the vector have the same value, that of the given scalar.
+
+    ```mlir
+   %value = cir.const #cir.int<3> : !s32i
+   %value_vec = cir.vec.splat %value : !s32i, !cir.vector<4 x !s32i>
+    ```
+  }];
+
+  let arguments = (ins CIR_AnyType:$value);
+  let results = (outs CIR_VectorType:$result);
+
+  let assemblyFormat = [{
+    $value `:` type($value) `,` qualified(type($result)) attr-dict
+  }];
+}
+
 #endif // CLANG_CIR_DIALECT_IR_CIROPS_TD
diff --git a/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp 
b/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
index 4158973f1054b..e13a4650ed6f9 100644
--- a/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
@@ -1650,6 +1650,14 @@ mlir::Value ScalarExprEmitter::VisitCastExpr(CastExpr 
*ce) {
                               cgf.convertType(destTy));
   }
 
+  case CK_VectorSplat: {
+    // Create a vector object and fill all elements with the same scalar value.
+    assert(destTy->isVectorType() && "CK_VectorSplat to non-vector type");
+    return cgf.getBuilder().create<cir::VecSplatOp>(
+        cgf.getLoc(subExpr->getSourceRange()), cgf.convertType(destTy),
+        Visit(subExpr));
+  }
+
   default:
     cgf.getCIRGenModule().errorNYI(subExpr->getSourceRange(),
                                    "CastExpr: ", ce->getCastKindName());
diff --git a/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp 
b/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
index 3c85bb4b6b41d..ccadcbfd19ca2 100644
--- a/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
+++ b/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp
@@ -1648,7 +1648,8 @@ void ConvertCIRToLLVMPass::runOnOperation() {
                CIRToLLVMUnaryOpLowering,
                CIRToLLVMVecCreateOpLowering,
                CIRToLLVMVecExtractOpLowering,
-               CIRToLLVMVecInsertOpLowering
+               CIRToLLVMVecInsertOpLowering,
+               CIRToLLVMVecSplatOpLowering
       // clang-format on
       >(converter, patterns.getContext());
 
@@ -1773,6 +1774,38 @@ mlir::LogicalResult 
CIRToLLVMVecInsertOpLowering::matchAndRewrite(
   return mlir::success();
 }
 
+mlir::LogicalResult CIRToLLVMVecSplatOpLowering::matchAndRewrite(
+    cir::VecSplatOp op, OpAdaptor adaptor,
+    mlir::ConversionPatternRewriter &rewriter) const {
+  // Vector splat can be implemented with an `insertelement` and a
+  // `shufflevector`, which is better than an `insertelement` for each
+  // element in the vector. Start with an undef vector. Insert the value into
+  // the first element. Then use a `shufflevector` with a mask of all 0 to
+  // fill out the entire vector with that value.
+  const auto vecTy = mlir::cast<cir::VectorType>(op.getType());
+  const mlir::Type llvmTy = typeConverter->convertType(vecTy);
+  const mlir::Location loc = op.getLoc();
+  const mlir::Value poison = rewriter.create<mlir::LLVM::PoisonOp>(loc, 
llvmTy);
+
+  const mlir::Value elementValue = adaptor.getValue();
+  if (mlir::isa<mlir::LLVM::PoisonOp>(elementValue.getDefiningOp())) {
+    // If the splat value is poison, then we can just use poison value
+    // for the entire vector.
+    rewriter.replaceOp(op, poison);
+    return mlir::success();
+  }
+
+  const mlir::Value indexValue =
+      rewriter.create<mlir::LLVM::ConstantOp>(loc, rewriter.getI64Type(), 0);
+  const mlir::Value oneElement = rewriter.create<mlir::LLVM::InsertElementOp>(
+      loc, poison, elementValue, indexValue);
+  const SmallVector<int32_t> zeroValues(vecTy.getSize(), 0);
+  const mlir::Value shuffled = rewriter.create<mlir::LLVM::ShuffleVectorOp>(
+      loc, oneElement, poison, zeroValues);
+  rewriter.replaceOp(op, shuffled);
+  return mlir::success();
+}
+
 std::unique_ptr<mlir::Pass> createConvertCIRToLLVMPass() {
   return std::make_unique<ConvertCIRToLLVMPass>();
 }
diff --git a/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.h 
b/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.h
index bd077e3d1d1e0..9eb44c9d60d6e 100644
--- a/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.h
+++ b/clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.h
@@ -332,6 +332,16 @@ class CIRToLLVMVecInsertOpLowering
                   mlir::ConversionPatternRewriter &) const override;
 };
 
+class CIRToLLVMVecSplatOpLowering
+    : public mlir::OpConversionPattern<cir::VecSplatOp> {
+public:
+  using mlir::OpConversionPattern<cir::VecSplatOp>::OpConversionPattern;
+
+  mlir::LogicalResult
+  matchAndRewrite(cir::VecSplatOp op, OpAdaptor,
+                  mlir::ConversionPatternRewriter &) const override;
+};
+
 } // namespace direct
 } // namespace cir
 
diff --git a/clang/test/CIR/CodeGen/vector-ext.cpp 
b/clang/test/CIR/CodeGen/vector-ext.cpp
index a16ef42f113df..bf7dbbe7fa579 100644
--- a/clang/test/CIR/CodeGen/vector-ext.cpp
+++ b/clang/test/CIR/CodeGen/vector-ext.cpp
@@ -6,6 +6,7 @@
 // RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
 
 typedef int vi4 __attribute__((ext_vector_type(4)));
+typedef unsigned int uvi4 __attribute__((ext_vector_type(4)));
 typedef int vi3 __attribute__((ext_vector_type(3)));
 typedef int vi2 __attribute__((ext_vector_type(2)));
 typedef double vd2 __attribute__((ext_vector_type(2)));
@@ -400,4 +401,67 @@ void foo9() {
 // OGCG: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[VEC_A]], align 16
 // OGCG: %[[TMP_B:.*]] = load <4 x i32>, ptr %[[VEC_B]], align 16
 // OGCG: %[[SHR:.*]] = ashr <4 x i32> %[[TMP_A]], %[[TMP_B]]
-// OGCG: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
\ No newline at end of file
+// OGCG: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
+
+void foo11() {
+  vi4 a = {1, 2, 3, 4};
+  vi4 shl = a << 3;
+
+  uvi4 b = {1u, 2u, 3u, 4u};
+  uvi4 shr = b >> 3u;
+}
+
+// CIR: %[[VEC_A:.*]] = cir.alloca !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>, ["a", init]
+// CIR: %[[SHL_RES:.*]] = cir.alloca !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>, ["shl", init]
+// CIR: %[[VEC_B:.*]] = cir.alloca !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>, ["b", init]
+// CIR: %[[SHR_RES:.*]] = cir.alloca !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>, ["shr", init]
+// CIR: %[[CONST_1:.*]] = cir.const #cir.int<1> : !s32i
+// CIR: %[[CONST_2:.*]] = cir.const #cir.int<2> : !s32i
+// CIR: %[[CONST_3:.*]] = cir.const #cir.int<3> : !s32i
+// CIR: %[[CONST_4:.*]] = cir.const #cir.int<4> : !s32i
+// CIR: %[[VEC_A_VAL:.*]] = cir.vec.create(%[[CONST_1]], %[[CONST_2]], 
%[[CONST_3]], %[[CONST_4]] :
+// CIR-SAME: !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
+// CIR: cir.store %[[VEC_A_VAL]], %[[VEC_A]] : !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: %[[TMP_A:.*]] = cir.load %[[VEC_A]] : !cir.ptr<!cir.vector<4 x 
!s32i>>, !cir.vector<4 x !s32i>
+// CIR: %[[SH_AMOUNT:.*]] = cir.const #cir.int<3> : !s32i
+// CIR: %[[SPLAT_VEC:.*]] = cir.vec.splat %[[SH_AMOUNT]] : !s32i, 
!cir.vector<4 x !s32i>
+// CIR: %[[SHL:.*]] = cir.shift(left, %[[TMP_A]] : !cir.vector<4 x !s32i>, 
%[[SPLAT_VEC]] : !cir.vector<4 x !s32i>) -> !cir.vector<4 x !s32i>
+// CIR: cir.store %[[SHL]], %[[SHL_RES]] : !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: %[[CONST_1:.*]] = cir.const #cir.int<1> : !u32i
+// CIR: %[[CONST_2:.*]] = cir.const #cir.int<2> : !u32i
+// CIR: %[[CONST_3:.*]] = cir.const #cir.int<3> : !u32i
+// CIR: %[[CONST_4:.*]] = cir.const #cir.int<4> : !u32i
+// CIR: %[[VEC_B_VAL:.*]] = cir.vec.create(%[[CONST_1]], %[[CONST_2]], 
%[[CONST_3]], %[[CONST_4]] :
+// CIR-SAME: !u32i, !u32i, !u32i, !u32i) : !cir.vector<4 x !u32i>
+// CIR: cir.store %[[VEC_B_VAL]], %[[VEC_B]] : !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>
+// CIR: %[[TMP_B:.*]] = cir.load %[[VEC_B]] : !cir.ptr<!cir.vector<4 x 
!u32i>>, !cir.vector<4 x !u32i>
+// CIR: %[[SH_AMOUNT:.*]] = cir.const #cir.int<3> : !u32i
+// CIR: %[[SPLAT_VEC:.*]] = cir.vec.splat %[[SH_AMOUNT]] : !u32i, 
!cir.vector<4 x !u32i>
+// CIR: %[[SHR:.*]] = cir.shift(right, %[[TMP_B]] : !cir.vector<4 x !u32i>, 
%[[SPLAT_VEC]] : !cir.vector<4 x !u32i>) -> !cir.vector<4 x !u32i>
+// CIR: cir.store %[[SHR]], %[[SHR_RES]] : !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>
+
+// LLVM: %[[VEC_A:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[SHL_RES:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[VEC_B:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[SHR_RES:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_A]], align 16
+// LLVM: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[VEC_A]], align 16
+// LLVM: %[[SHL:.*]] = shl <4 x i32> %[[TMP_A]], splat (i32 3)
+// LLVM: store <4 x i32> %[[SHL]], ptr %[[SHL_RES]], align 16
+// LLVM: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_B]], align 16
+// LLVM: %[[TMP_B:.*]] = load <4 x i32>, ptr %[[VEC_B]], align 16
+// LLVM: %[[SHR:.*]] = lshr <4 x i32> %[[TMP_B]], splat (i32 3)
+// LLVM: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
+
+// OGCG: %[[VEC_A:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[SHL_RES:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[VEC_B:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[SHR_RES:.*]] = alloca <4 x i32>, align 16
+// OGCG: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_A]], align 16
+// OGCG: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[VEC_A]], align 16
+// OGCG: %[[SHL:.*]] = shl <4 x i32> %[[TMP_A]], splat (i32 3)
+// OGCG: store <4 x i32> %[[SHL]], ptr %[[SHL_RES]], align 16
+// OGCG: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_B]], align 16
+// OGCG: %[[TMP_B:.*]] = load <4 x i32>, ptr %[[VEC_B]], align 16
+// OGCG: %[[SHR:.*]] = lshr <4 x i32> %[[TMP_B]], splat (i32 3)
+// OGCG: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
diff --git a/clang/test/CIR/CodeGen/vector.cpp 
b/clang/test/CIR/CodeGen/vector.cpp
index 4546215865095..6f1622eb12c27 100644
--- a/clang/test/CIR/CodeGen/vector.cpp
+++ b/clang/test/CIR/CodeGen/vector.cpp
@@ -6,6 +6,7 @@
 // RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
 
 typedef int vi4 __attribute__((vector_size(16)));
+typedef unsigned int uvi4 __attribute__((vector_size(16)));
 typedef double vd2 __attribute__((vector_size(16)));
 typedef long long vll2 __attribute__((vector_size(16)));
 
@@ -388,4 +389,67 @@ void foo9() {
 // OGCG: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[VEC_A]], align 16
 // OGCG: %[[TMP_B:.*]] = load <4 x i32>, ptr %[[VEC_B]], align 16
 // OGCG: %[[SHR:.*]] = ashr <4 x i32> %[[TMP_A]], %[[TMP_B]]
-// OGCG: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
\ No newline at end of file
+// OGCG: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
+
+void foo11() {
+  vi4 a = {1, 2, 3, 4};
+  vi4 shl = a << 3;
+
+  uvi4 b = {1u, 2u, 3u, 4u};
+  uvi4 shr = b >> 3u;
+}
+
+// CIR: %[[VEC_A:.*]] = cir.alloca !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>, ["a", init]
+// CIR: %[[SHL_RES:.*]] = cir.alloca !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>, ["shl", init]
+// CIR: %[[VEC_B:.*]] = cir.alloca !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>, ["b", init]
+// CIR: %[[SHR_RES:.*]] = cir.alloca !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>, ["shr", init]
+// CIR: %[[CONST_1:.*]] = cir.const #cir.int<1> : !s32i
+// CIR: %[[CONST_2:.*]] = cir.const #cir.int<2> : !s32i
+// CIR: %[[CONST_3:.*]] = cir.const #cir.int<3> : !s32i
+// CIR: %[[CONST_4:.*]] = cir.const #cir.int<4> : !s32i
+// CIR: %[[VEC_A_VAL:.*]] = cir.vec.create(%[[CONST_1]], %[[CONST_2]], 
%[[CONST_3]], %[[CONST_4]] :
+// CIR-SAME: !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
+// CIR: cir.store %[[VEC_A_VAL]], %[[VEC_A]] : !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: %[[TMP_A:.*]] = cir.load %[[VEC_A]] : !cir.ptr<!cir.vector<4 x 
!s32i>>, !cir.vector<4 x !s32i>
+// CIR: %[[SH_AMOUNT:.*]] = cir.const #cir.int<3> : !s32i
+// CIR: %[[SPLAT_VEC:.*]] = cir.vec.splat %[[SH_AMOUNT]] : !s32i, 
!cir.vector<4 x !s32i>
+// CIR: %[[SHL:.*]] = cir.shift(left, %[[TMP_A]] : !cir.vector<4 x !s32i>, 
%[[SPLAT_VEC]] : !cir.vector<4 x !s32i>) -> !cir.vector<4 x !s32i>
+// CIR: cir.store %[[SHL]], %[[SHL_RES]] : !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: %[[CONST_1:.*]] = cir.const #cir.int<1> : !u32i
+// CIR: %[[CONST_2:.*]] = cir.const #cir.int<2> : !u32i
+// CIR: %[[CONST_3:.*]] = cir.const #cir.int<3> : !u32i
+// CIR: %[[CONST_4:.*]] = cir.const #cir.int<4> : !u32i
+// CIR: %[[VEC_B_VAL:.*]] = cir.vec.create(%[[CONST_1]], %[[CONST_2]], 
%[[CONST_3]], %[[CONST_4]] :
+// CIR-SAME: !u32i, !u32i, !u32i, !u32i) : !cir.vector<4 x !u32i>
+// CIR: cir.store %[[VEC_B_VAL]], %[[VEC_B]] : !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>
+// CIR: %[[TMP_B:.*]] = cir.load %[[VEC_B]] : !cir.ptr<!cir.vector<4 x 
!u32i>>, !cir.vector<4 x !u32i>
+// CIR: %[[SH_AMOUNT:.*]] = cir.const #cir.int<3> : !u32i
+// CIR: %[[SPLAT_VEC:.*]] = cir.vec.splat %[[SH_AMOUNT]] : !u32i, 
!cir.vector<4 x !u32i>
+// CIR: %[[SHR:.*]] = cir.shift(right, %[[TMP_B]] : !cir.vector<4 x !u32i>, 
%[[SPLAT_VEC]] : !cir.vector<4 x !u32i>) -> !cir.vector<4 x !u32i>
+// CIR: cir.store %[[SHR]], %[[SHR_RES]] : !cir.vector<4 x !u32i>, 
!cir.ptr<!cir.vector<4 x !u32i>>
+
+// LLVM: %[[VEC_A:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[SHL_RES:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[VEC_B:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[SHR_RES:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_A]], align 16
+// LLVM: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[VEC_A]], align 16
+// LLVM: %[[SHL:.*]] = shl <4 x i32> %[[TMP_A]], splat (i32 3)
+// LLVM: store <4 x i32> %[[SHL]], ptr %[[SHL_RES]], align 16
+// LLVM: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_B]], align 16
+// LLVM: %[[TMP_B:.*]] = load <4 x i32>, ptr %[[VEC_B]], align 16
+// LLVM: %[[SHR:.*]] = lshr <4 x i32> %[[TMP_B]], splat (i32 3)
+// LLVM: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
+
+// OGCG: %[[VEC_A:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[SHL_RES:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[VEC_B:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[SHR_RES:.*]] = alloca <4 x i32>, align 16
+// OGCG: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_A]], align 16
+// OGCG: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[VEC_A]], align 16
+// OGCG: %[[SHL:.*]] = shl <4 x i32> %[[TMP_A]], splat (i32 3)
+// OGCG: store <4 x i32> %[[SHL]], ptr %[[SHL_RES]], align 16
+// OGCG: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_B]], align 16
+// OGCG: %[[TMP_B:.*]] = load <4 x i32>, ptr %[[VEC_B]], align 16
+// OGCG: %[[SHR:.*]] = lshr <4 x i32> %[[TMP_B]], splat (i32 3)
+// OGCG: store <4 x i32> %[[SHR]], ptr %[[SHR_RES]], align 16
diff --git a/clang/test/CIR/IR/vector.cir b/clang/test/CIR/IR/vector.cir
index 21a1f0a7559c4..bfc87350ecba1 100644
--- a/clang/test/CIR/IR/vector.cir
+++ b/clang/test/CIR/IR/vector.cir
@@ -135,4 +135,38 @@ cir.func @vector_insert_element_test() {
 // CHECK:    cir.return
 // CHECK:  }
 
+cir.func @vector_splat_test() {
+    %0 = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, 
["a", init]
+    %1 = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, 
["shl", init]
+    %2 = cir.const #cir.int<1> : !s32i
+    %3 = cir.const #cir.int<2> : !s32i
+    %4 = cir.const #cir.int<3> : !s32i
+    %5 = cir.const #cir.int<4> : !s32i
+    %6 = cir.vec.create(%2, %3, %4, %5 : !s32i, !s32i, !s32i, !s32i) : 
!cir.vector<4 x !s32i>
+    cir.store %6, %0 : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
+    %7 = cir.load %0 : !cir.ptr<!cir.vector<4 x !s32i>>, !cir.vector<4 x !s32i>
+    %8 = cir.const #cir.int<3> : !s32i
+    %9 = cir.vec.splat %8 : !s32i, !cir.vector<4 x !s32i>
+    %10 = cir.shift(left, %7 : !cir.vector<4 x !s32i>, %9 : !cir.vector<4 x 
!s32i>) -> !cir.vector<4 x !s32i>
+    cir.store %10, %1 : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x 
!s32i>>
+    cir.return
+}
+
+// CHECK: cir.func @vector_splat_test() {
+// CHECK:    %0 = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x 
!s32i>>, ["a", init]
+// CHECK:    %1 = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x 
!s32i>>, ["shl", init]
+// CHECK:    %2 = cir.const #cir.int<1> : !s32i
+// CHECK:    %3 = cir.const #cir.int<2> : !s32i
+// CHECK:    %4 = cir.const #cir.int<3> : !s32i
+// CHECK:    %5 = cir.const #cir.int<4> : !s32i
+// CHECK:    %6 = cir.vec.create(%2, %3, %4, %5 : !s32i, !s32i, !s32i, !s32i) 
: !cir.vector<4 x !s32i>
+// CHECK:    cir.store %6, %0 : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 
x !s32i>>
+// CHECK:    %7 = cir.load %0 : !cir.ptr<!cir.vector<4 x !s32i>>, 
!cir.vector<4 x !s32i>
+// CHECK:    %8 = cir.const #cir.int<3> : !s32i
+// CHECK:    %9 = cir.vec.splat %8 : !s32i, !cir.vector<4 x !s32i>
+// CHECK:    %10 = cir.shift(left, %7 : !cir.vector<4 x !s32i>, %9 : 
!cir.vector<4 x !s32i>) -> !cir.vector<4 x !s32i>
+// CHECK:    cir.store %10, %1 : !cir.vector<4 x !s32i>, 
!cir.ptr<!cir.vector<4 x !s32i>>
+// CHECK:    cir.return
+// CHECK: }
+
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/139827
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to