[CIR][CIRGen] Generate CIR for neon_vget and neon_vdup lane intrinsics (llvm#884)

as title. 
This PR has simliar test case organization as to
[PR882](llvm#882)
Notice that comparing to OG, this PR combines cases for some pairs of
intrinsics such as
BI__builtin_neon_vget_lane_f32 and BI__builtin_neon_vdups_lane_f32. 
They have the same code generated in OG and CIRGen
OG separate them into different case handling because it passes
mnemonics which are different. CIRGen doesn't pass that so why not
combine them.

Co-authored-by: Guojin He <[email protected]>

Author: ghehg

clang/lib/CIR/CodeGen/CIRGenBuiltinAArch64.cpp

@@ -2186,42 +2186,76 @@ CIRGenFunction::buildAArch64BuiltinExpr(unsigned BuiltinID, const CallExpr *E,
 
   case NEON::BI__builtin_neon_vget_lane_i8:
   case NEON::BI__builtin_neon_vdupb_lane_i8:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt8Ty, 8));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vgetq_lane_i8:
   case NEON::BI__builtin_neon_vdupb_laneq_i8:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt8Ty, 16));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vget_lane_i16:
   case NEON::BI__builtin_neon_vduph_lane_i16:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt16Ty, 4));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vgetq_lane_i16:
   case NEON::BI__builtin_neon_vduph_laneq_i16:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt16Ty, 8));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vget_lane_i32:
   case NEON::BI__builtin_neon_vdups_lane_i32:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt32Ty, 2));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
+  case NEON::BI__builtin_neon_vget_lane_f32:
   case NEON::BI__builtin_neon_vdups_lane_f32:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), FloatTy, 2));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vgetq_lane_i32:
   case NEON::BI__builtin_neon_vdups_laneq_i32:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt32Ty, 4));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vget_lane_i64:
   case NEON::BI__builtin_neon_vdupd_lane_i64:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt64Ty, 1));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vdupd_lane_f64:
-    llvm_unreachable("NYI");
+  case NEON::BI__builtin_neon_vget_lane_f64:
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), DoubleTy, 1));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vgetq_lane_i64:
   case NEON::BI__builtin_neon_vdupd_laneq_i64:
-    llvm_unreachable("NYI");
-  case NEON::BI__builtin_neon_vget_lane_f32:
-    llvm_unreachable("NYI");
-  case NEON::BI__builtin_neon_vget_lane_f64:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), UInt64Ty, 2));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vgetq_lane_f32:
   case NEON::BI__builtin_neon_vdups_laneq_f32:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), FloatTy, 4));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vgetq_lane_f64:
   case NEON::BI__builtin_neon_vdupd_laneq_f64:
-    llvm_unreachable("NYI");
+    Ops[0] = builder.createBitcast(
+        Ops[0], mlir::cir::VectorType::get(builder.getContext(), DoubleTy, 2));
+    return builder.create<mlir::cir::VecExtractOp>(
+        getLoc(E->getExprLoc()), Ops[0], buildScalarExpr(E->getArg(1)));
   case NEON::BI__builtin_neon_vaddh_f16:
     llvm_unreachable("NYI");
   case NEON::BI__builtin_neon_vsubh_f16:

clang/test/CIR/CodeGen/aarch64-neon-vdup-lane.c

@@ -0,0 +1,216 @@
+// RUN: %clang_cc1 -triple aarch64-none-linux-android24  -fclangir \
+// RUN:            -emit-cir -target-feature +neon %s -o %t.cir
+// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
+// RUN: %clang_cc1 -triple aarch64-none-linux-android24  -fclangir \
+// RUN:            -emit-llvm -target-feature +neon %s -o %t.ll
+// RUN: FileCheck --check-prefix=LLVM --input-file=%t.ll %s
+
+// Tetsting normal situation of vdup lane intrinsics.
+
+// REQUIRES: aarch64-registered-target || arm-registered-target
+#include <arm_neon.h>
+
+int8_t test_vdupb_lane_s8(int8x8_t src) {
+  return vdupb_lane_s8(src, 7);
+}
+
+// CIR-LABEL: test_vdupb_lane_s8
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<7> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u8i x 8>
+
+// LLVM: define dso_local i8 @test_vdupb_lane_s8(<8 x i8> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <8 x i8>, i64 1, align 8
+// LLVM: store <8 x i8> [[ARG]], ptr [[ARG_SAVE]], align 8
+// LLVM: [[TMP:%.*]] = load <8 x i8>, ptr [[ARG_SAVE:%.*]], align 8
+// LLVM: store <8 x i8> [[TMP]], ptr [[S0:%.*]], align 8
+// LLVM: [[INTRN_ARG:%.*]] = load <8 x i8>, ptr [[S0]], align 8
+// LLVM: {{%.*}} = extractelement <8 x i8> [[INTRN_ARG]], i32 7
+// LLVM: ret i8 {{%.*}}
+
+int8_t test_vdupb_laneq_s8(int8x16_t a) {
+  return vdupb_laneq_s8(a, 15);
+}
+
+// CIR-LABEL: test_vdupb_laneq_s8
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<15> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u8i x 16>
+
+// LLVM: define dso_local i8 @test_vdupb_laneq_s8(<16 x i8> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <16 x i8>, i64 1, align 16
+// LLVM: store <16 x i8> [[ARG]], ptr [[ARG_SAVE]], align 16
+// LLVM: [[TMP:%.*]] = load <16 x i8>, ptr [[ARG_SAVE:%.*]], align 16
+// LLVM: store <16 x i8> [[TMP]], ptr [[S0:%.*]], align 16
+// LLVM: [[INTRN_ARG:%.*]] = load <16 x i8>, ptr [[S0]], align 16
+// LLVM: {{%.*}} = extractelement <16 x i8> [[INTRN_ARG]], i32 15
+// LLVM: ret i8 {{%.*}}
+
+int16_t test_vduph_lane_s16(int16x4_t src) {
+  return vduph_lane_s16(src, 3);
+}
+
+// CIR-LABEL: test_vduph_lane_s16
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<3> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u16i x 4>
+
+
+// LLVM: define dso_local i16 @test_vduph_lane_s16(<4 x i16> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <4 x i16>, i64 1, align 8
+// LLVM: store <4 x i16> [[ARG]], ptr [[ARG_SAVE]], align 8
+// LLVM: [[TMP:%.*]] = load <4 x i16>, ptr [[ARG_SAVE:%.*]], align 8
+// LLVM: store <4 x i16> [[TMP]], ptr [[S0:%.*]], align 8
+// LLVM: [[INTRN_ARG:%.*]] = load <4 x i16>, ptr [[S0]], align 8
+// LLVM: {{%.*}} = extractelement <4 x i16> [[INTRN_ARG]], i32 3
+// LLVM: ret i16 {{%.*}}
+
+int16_t test_vduph_laneq_s16(int16x8_t a) {
+  return vduph_laneq_s16(a, 7);
+}
+
+// CIR-LABEL: test_vduph_laneq_s16
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<7> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u16i x 8>
+
+// LLVM: define dso_local i16 @test_vduph_laneq_s16(<8 x i16> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <8 x i16>, i64 1, align 16
+// LLVM: store <8 x i16> [[ARG]], ptr [[ARG_SAVE]], align 16
+// LLVM: [[TMP:%.*]] = load <8 x i16>, ptr [[ARG_SAVE:%.*]], align 16
+// LLVM: store <8 x i16> [[TMP]], ptr [[S0:%.*]], align 16
+// LLVM: [[INTRN_ARG:%.*]] = load <8 x i16>, ptr [[S0]], align 16
+// LLVM: {{%.*}} = extractelement <8 x i16> [[INTRN_ARG]], i32 7
+// LLVM: ret i16 {{%.*}}
+
+int32_t test_vdups_lane_s32(int32x2_t a) {
+  return vdups_lane_s32(a, 1);
+}
+
+// CIR-LABEL: test_vdups_lane_s32
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<1> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u32i x 2>
+
+// LLVM: define dso_local i32 @test_vdups_lane_s32(<2 x i32> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <2 x i32>, i64 1, align 8
+// LLVM: store <2 x i32> [[ARG]], ptr [[ARG_SAVE]], align 8
+// LLVM: [[TMP:%.*]] = load <2 x i32>, ptr [[ARG_SAVE:%.*]], align 8
+// LLVM: store <2 x i32> [[TMP]], ptr [[S0:%.*]], align 8
+// LLVM: [[INTRN_ARG:%.*]] = load <2 x i32>, ptr [[S0]], align 8
+// LLVM: {{%.*}} = extractelement <2 x i32> [[INTRN_ARG]], i32 1
+// LLVM: ret i32 {{%.*}}
+
+int32_t test_vdups_laneq_s32(int32x4_t a) {
+  return vdups_laneq_s32(a, 3);
+}
+
+// CIR-LABEL: test_vdups_laneq_s32
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<3> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u32i x 4>
+
+// LLVM: define dso_local i32 @test_vdups_laneq_s32(<4 x i32> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: store <4 x i32> [[ARG]], ptr [[ARG_SAVE]], align 16
+// LLVM: [[TMP:%.*]] = load <4 x i32>, ptr [[ARG_SAVE:%.*]], align 16
+// LLVM: store <4 x i32> [[TMP]], ptr [[S0:%.*]], align 16
+// LLVM: [[INTRN_ARG:%.*]] = load <4 x i32>, ptr [[S0]], align 16
+// LLVM: {{%.*}} = extractelement <4 x i32> [[INTRN_ARG]], i32 3
+// LLVM: ret i32 {{%.*}}
+
+int64_t test_vdupd_lane_s64(int64x1_t src) {
+  return vdupd_lane_s64(src, 0);
+}
+
+// CIR-LABEL: test_vdupd_lane_s64
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<0> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u64i x 1>
+
+// LLVM: define dso_local i64 @test_vdupd_lane_s64(<1 x i64> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <1 x i64>, i64 1, align 8
+// LLVM: store <1 x i64> [[ARG]], ptr [[ARG_SAVE]], align 8
+// LLVM: [[TMP:%.*]] = load <1 x i64>, ptr [[ARG_SAVE:%.*]], align 8
+// LLVM: store <1 x i64> [[TMP]], ptr [[S0:%.*]], align 8
+// LLVM: [[INTRN_ARG:%.*]] = load <1 x i64>, ptr [[S0]], align 8
+// LLVM: {{%.*}} = extractelement <1 x i64> [[INTRN_ARG]], i32 0
+// LLVM: ret i64 {{%.*}}
+
+int64_t test_vdupd_laneq_s64(int64x2_t a) {
+  return vdupd_laneq_s64(a, 1);
+}
+
+// CIR-LABEL: test_vdupd_laneq_s64
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<1> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!u64i x 2>
+
+// LLVM: define dso_local i64 @test_vdupd_laneq_s64(<2 x i64> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <2 x i64>, i64 1, align 16
+// LLVM: store <2 x i64> [[ARG]], ptr [[ARG_SAVE]], align 16
+// LLVM: [[TMP:%.*]] = load <2 x i64>, ptr [[ARG_SAVE:%.*]], align 16
+// LLVM: store <2 x i64> [[TMP]], ptr [[S0:%.*]], align 16
+// LLVM: [[INTRN_ARG:%.*]] = load <2 x i64>, ptr [[S0]], align 16
+// LLVM: {{%.*}} = extractelement <2 x i64> [[INTRN_ARG]], i32 1
+// LLVM: ret i64 {{%.*}}
+
+float32_t test_vdups_lane_f32(float32x2_t src) {
+  return vdups_lane_f32(src, 1);
+}
+
+// CIR-LABEL: test_vdups_lane_f32
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<1> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!cir.float x 2>
+
+// LLVM: define dso_local float @test_vdups_lane_f32(<2 x float> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <2 x float>, i64 1, align 8
+// LLVM: store <2 x float> [[ARG]], ptr [[ARG_SAVE]], align 8
+// LLVM: [[TMP:%.*]] = load <2 x float>, ptr [[ARG_SAVE:%.*]], align 8
+// LLVM: store <2 x float> [[TMP]], ptr [[S0:%.*]], align 8
+// LLVM: [[INTRN_ARG:%.*]] = load <2 x float>, ptr [[S0]], align 8
+// LLVM: {{%.*}} = extractelement <2 x float> [[INTRN_ARG]], i32 1
+// LLVM: ret float {{%.*}}
+
+float64_t test_vdupd_lane_f64(float64x1_t src) {
+  return vdupd_lane_f64(src, 0);
+}
+
+// CIR-LABEL: test_vdupd_lane_f64
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<0> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!cir.double x 1>
+
+// LLVM: define dso_local double @test_vdupd_lane_f64(<1 x double> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <1 x double>, i64 1, align 8
+// LLVM: store <1 x double> [[ARG]], ptr [[ARG_SAVE]], align 8
+// LLVM: [[TMP:%.*]] = load <1 x double>, ptr [[ARG_SAVE:%.*]], align 8
+// LLVM: store <1 x double> [[TMP]], ptr [[S0:%.*]], align 8
+// LLVM: [[INTRN_ARG:%.*]] = load <1 x double>, ptr [[S0]], align 8
+// LLVM: {{%.*}} = extractelement <1 x double> [[INTRN_ARG]], i32 0
+// LLVM: ret double {{%.*}}
+
+float32_t test_vdups_laneq_f32(float32x4_t src) {
+  return vdups_laneq_f32(src, 3);
+}
+
+// CIR-LABEL: test_vdups_laneq_f32
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<3> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!cir.float x 4>
+
+// LLVM: define dso_local float @test_vdups_laneq_f32(<4 x float> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <4 x float>, i64 1, align 16
+// LLVM: store <4 x float> [[ARG]], ptr [[ARG_SAVE]], align 16
+// LLVM: [[TMP:%.*]] = load <4 x float>, ptr [[ARG_SAVE:%.*]], align 16
+// LLVM: store <4 x float> [[TMP]], ptr [[S0:%.*]], align 16
+// LLVM: [[INTRN_ARG:%.*]] = load <4 x float>, ptr [[S0]], align 16
+// LLVM: {{%.*}} = extractelement <4 x float> [[INTRN_ARG]], i32 3
+// LLVM: ret float {{%.*}}
+
+float64_t test_vdupd_laneq_f64(float64x2_t src) {
+  return vdupd_laneq_f64(src, 1);
+}
+
+// CIR-LABEL: test_vdupd_laneq_f64
+// CIR: [[IDX:%.*]]  = cir.const #cir.int<1> : !s32i
+// CIR: {{%.*}} = cir.vec.extract {{%.*}}[[[IDX]] : !s32i] : !cir.vector<!cir.double x 2>
+
+// LLVM: define dso_local double @test_vdupd_laneq_f64(<2 x double> [[ARG:%.*]])
+// LLVM: [[ARG_SAVE:%.*]] = alloca <2 x double>, i64 1, align 16
+// LLVM: store <2 x double> [[ARG]], ptr [[ARG_SAVE]], align 16
+// LLVM: [[TMP:%.*]] = load <2 x double>, ptr [[ARG_SAVE:%.*]], align 16
+// LLVM: store <2 x double> [[TMP]], ptr [[S0:%.*]], align 16
+// LLVM: [[INTRN_ARG:%.*]] = load <2 x double>, ptr [[S0]], align 16
+// LLVM: {{%.*}} = extractelement <2 x double> [[INTRN_ARG]], i32 1
+// LLVM: ret double {{%.*}}