[clang] [CIR][AArch64] Implement vqshrn_n NEON builtin (PR #195085)

[Jiahao Guo via cfe-commits]

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@@ -0,0 +1,28 @@
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon -emit-llvm -o - %s | FileCheck %s --check-prefix=LLVM
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon -fclangir -emit-cir -o - %s | FileCheck %s --check-prefix=CIR
+
+#include <arm_neon.h>
+
+// LLVM-LABEL: @test_vqshrun_n_s16(
+// CIR-LABEL: @test_vqshrun_n_s16(
+uint8x8_t test_vqshrun_n_s16(int16x8_t a) {
+  // CIR: cir.call_llvm_intrinsic "aarch64.neon.sqshrun"
+  // LLVM: call <8 x i8> @llvm.aarch64.neon.sqshrun.v8i8
+  return vqshrun_n_s16(a, 3);
+}
+
+// LLVM-LABEL: @test_vqshrun_n_s32(
+// CIR-LABEL: @test_vqshrun_n_s32(
+uint16x4_t test_vqshrun_n_s32(int32x4_t a) {
+  // CIR: cir.call_llvm_intrinsic "aarch64.neon.sqshrun"
+  // LLVM: call <4 x i16> @llvm.aarch64.neon.sqshrun.v4i16
+  return vqshrun_n_s32(a, 9);
+}
+
+// LLVM-LABEL: @test_vqshrun_n_s64(
+// CIR-LABEL: @test_vqshrun_n_s64(
+uint32x2_t test_vqshrun_n_s64(int64x2_t a) {
+  // CIR: cir.call_llvm_intrinsic "aarch64.neon.sqshrun"
+  // LLVM: call <2 x i32> @llvm.aarch64.neon.sqshrun.v2i32
+  return vqshrun_n_s64(a, 19);
+}
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E00N777 wrote:

nit: extra line breaks

https://github.com/llvm/llvm-project/pull/195085