--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/CodeGen/aarch64-neon-misc-constrained.c	Mon May 25 11:55:54 2020 +0900
@@ -0,0 +1,60 @@
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon \
+// RUN:  -disable-O0-optnone -fallow-half-arguments-and-returns -emit-llvm -o - %s \
+// RUN: | opt -S -mem2reg | FileCheck --check-prefix=COMMON --check-prefix=COMMONIR --check-prefix=UNCONSTRAINED %s
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon \
+// RUN:  -ffp-exception-behavior=strict \
+// RUN:  -disable-O0-optnone -fallow-half-arguments-and-returns -emit-llvm -o - %s \
+// RUN: | opt -S -mem2reg | FileCheck --check-prefix=COMMON --check-prefix=COMMONIR --check-prefix=CONSTRAINED %s
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon \
+// RUN:  -disable-O0-optnone -fallow-half-arguments-and-returns -S -o - %s \
+// RUN: | FileCheck --check-prefix=COMMON --check-prefix=CHECK-ASM %s
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon \
+// RUN:  -ffp-exception-behavior=strict \
+// RUN:  -disable-O0-optnone -fallow-half-arguments-and-returns -S -o - %s \
+// RUN: | FileCheck --check-prefix=COMMON --check-prefix=CHECK-ASM %s
+
+// REQUIRES: aarch64-registered-target
+
+// Test new aarch64 intrinsics and types but constrained
+
+#include <arm_neon.h>
+
+// COMMON-LABEL: test_vrndaq_f64
+// COMMONIR:   [[TMP0:%.*]] = bitcast <2 x double> %a to <16 x i8>
+// UNCONSTRAINED: [[VRNDA1_I:%.*]] = call <2 x double> @llvm.round.v2f64(<2 x double> %a)
+// CONSTRAINED:   [[VRNDA1_I:%.*]] = call <2 x double> @llvm.experimental.constrained.round.v2f64(<2 x double> %a, metadata !"fpexcept.strict")
+// CHECK-ASM:     frinta v{{[0-9]+}}.2d, v{{[0-9]+}}.2d
+// COMMONIR:      ret <2 x double> [[VRNDA1_I]]
+float64x2_t test_vrndaq_f64(float64x2_t a) {
+  return vrndaq_f64(a);
+}
+
+// COMMON-LABEL: test_vrndpq_f64
+// COMMONIR:   [[TMP0:%.*]] = bitcast <2 x double> %a to <16 x i8>
+// UNCONSTRAINED: [[VRNDP1_I:%.*]] = call <2 x double> @llvm.ceil.v2f64(<2 x double> %a)
+// CONSTRAINED:   [[VRNDP1_I:%.*]] = call <2 x double> @llvm.experimental.constrained.ceil.v2f64(<2 x double> %a, metadata !"fpexcept.strict")
+// CHECK-ASM:     frintp v{{[0-9]+}}.2d, v{{[0-9]+}}.2d
+// COMMONIR:      ret <2 x double> [[VRNDP1_I]]
+float64x2_t test_vrndpq_f64(float64x2_t a) {
+  return vrndpq_f64(a);
+}
+
+// COMMON-LABEL: test_vsqrtq_f32
+// COMMONIR:   [[TMP0:%.*]] = bitcast <4 x float> %a to <16 x i8>
+// UNCONSTRAINED: [[VSQRT_I:%.*]] = call <4 x float> @llvm.sqrt.v4f32(<4 x float> %a)
+// CONSTRAINED:   [[VSQRT_I:%.*]] = call <4 x float> @llvm.experimental.constrained.sqrt.v4f32(<4 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
+// CHECK-ASM:     fsqrt v{{[0-9]+}}.4s, v{{[0-9]+}}.4s
+// COMMONIR:      ret <4 x float> [[VSQRT_I]]
+float32x4_t test_vsqrtq_f32(float32x4_t a) {
+  return vsqrtq_f32(a);
+}
+
+// COMMON-LABEL: test_vsqrtq_f64
+// COMMONIR:   [[TMP0:%.*]] = bitcast <2 x double> %a to <16 x i8>
+// UNCONSTRAINED: [[VSQRT_I:%.*]] = call <2 x double> @llvm.sqrt.v2f64(<2 x double> %a)
+// CONSTRAINED:   [[VSQRT_I:%.*]] = call <2 x double> @llvm.experimental.constrained.sqrt.v2f64(<2 x double> %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
+// CHECK-ASM:     fsqrt v{{[0-9]+}}.2d, v{{[0-9]+}}.2d
+// COMMONIR:      ret <2 x double> [[VSQRT_I]]
+float64x2_t test_vsqrtq_f64(float64x2_t a) {
+  return vsqrtq_f64(a);
+}