1 files changed, 110 insertions, 0 deletions
diff --git a/test/CodeGen/arm64-mte.c b/test/CodeGen/arm64-mte.c
new file mode 100644
index 0000000000..675c37ee4e
--- /dev/null
+++ b/test/CodeGen/arm64-mte.c
@@ -0,0 +1,110 @@
+// Test memory tagging extension intrinsics
+// RUN: %clang_cc1 -triple aarch64-none-linux-eabi -target-feature +mte -O3 -S -emit-llvm -o - %s  | FileCheck %s
+#include <stddef.h>
+#include <arm_acle.h>
+
+// CHECK-LABEL: define i32* @create_tag1
+int *create_tag1(int *a, unsigned b) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = zext i32 %b to i64
+// CHECK: [[T2:%[0-9]+]] = tail call i8* @llvm.aarch64.irg(i8* [[T0]], i64 [[T1]])
+// CHECK: bitcast i8* [[T2]] to i32*
+        return __arm_mte_create_random_tag(a,b);
+}
+
+// CHECK-LABEL: define i16* @create_tag2
+short *create_tag2(short *a, unsigned b) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i16* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = zext i32 %b to i64
+// CHECK: [[T2:%[0-9]+]] = tail call i8* @llvm.aarch64.irg(i8* [[T0]], i64 [[T1]])
+// CHECK: bitcast i8* [[T2]] to i16*
+        return __arm_mte_create_random_tag(a,b);
+}
+
+// CHECK-LABEL: define i8* @create_tag3
+char *create_tag3(char *a, unsigned b) {
+// CHECK: [[T1:%[0-9]+]] = zext i32 %b to i64
+// CHECK: [[T2:%[0-9]+]] = tail call i8* @llvm.aarch64.irg(i8* %a, i64 [[T1]])
+// CHECK: ret i8* [[T2:%[0-9]+]]
+        return __arm_mte_create_random_tag(a,b);
+}
+
+// CHECK-LABEL: define i8* @increment_tag1
+char *increment_tag1(char *a) {
+// CHECK: call i8* @llvm.aarch64.addg(i8* %a, i64 3)
+        return __arm_mte_increment_tag(a,3);
+}
+
+// CHECK-LABEL: define i16* @increment_tag2
+short *increment_tag2(short *a) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i16* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = tail call i8* @llvm.aarch64.addg(i8* [[T0]], i64 3)
+// CHECK: [[T2:%[0-9]+]]  = bitcast i8* [[T1]] to i16*
+        return __arm_mte_increment_tag(a,3);
+}
+
+// CHECK-LABEL: define i32 @exclude_tag
+unsigned exclude_tag(int *a, unsigned m) {
+// CHECK: [[T0:%[0-9]+]] = zext i32 %m to i64
+// CHECK: [[T1:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: [[T2:%[0-9]+]] = tail call i64 @llvm.aarch64.gmi(i8* [[T1]], i64 [[T0]])
+// CHECK: trunc i64 [[T2]] to i32
+  return __arm_mte_exclude_tag(a, m);
+}
+
+// CHECK-LABEL: define i32* @get_tag1
+int *get_tag1(int *a) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = tail call i8* @llvm.aarch64.ldg(i8* [[T0]], i8* [[T0]])
+// CHECK: [[T2:%[0-9]+]]  = bitcast i8* [[T1]] to i32*
+   return __arm_mte_get_tag(a);
+}
+
+// CHECK-LABEL: define i16* @get_tag2
+short *get_tag2(short *a) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i16* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = tail call i8* @llvm.aarch64.ldg(i8* [[T0]], i8* [[T0]])
+// CHECK: [[T2:%[0-9]+]]  = bitcast i8* [[T1]] to i16*
+   return __arm_mte_get_tag(a);
+}
+
+// CHECK-LABEL: define void @set_tag1
+void set_tag1(int *a) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: tail call void @llvm.aarch64.stg(i8* [[T0]], i8* [[T0]])
+   __arm_mte_set_tag(a);
+}
+
+// CHECK-LABEL: define i64 @subtract_pointers
+ptrdiff_t subtract_pointers(int *a, int *b) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = bitcast i32* %b to i8*
+// CHECK: [[T2:%[0-9]+]] = tail call i64 @llvm.aarch64.subp(i8* [[T0]], i8* [[T1]])
+// CHECK: ret i64 [[T2]]
+   return __arm_mte_ptrdiff(a, b);
+}
+
+// CHECK-LABEL: define i64 @subtract_pointers_null_1
+ptrdiff_t subtract_pointers_null_1(int *a) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = tail call i64 @llvm.aarch64.subp(i8* [[T0]], i8* null)
+// CHECK: ret i64 [[T1]]
+   return __arm_mte_ptrdiff(a, NULL);
+}
+
+// CHECK-LABEL: define i64 @subtract_pointers_null_2
+ptrdiff_t subtract_pointers_null_2(int *a) {
+// CHECK: [[T0:%[0-9]+]] = bitcast i32* %a to i8*
+// CHECK: [[T1:%[0-9]+]] = tail call i64 @llvm.aarch64.subp(i8* null, i8* [[T0]])
+// CHECK: ret i64 [[T1]]
+   return __arm_mte_ptrdiff(NULL, a);
+}
+
+// Check arithmetic promotion on return type
+// CHECK-LABEL: define i32 @subtract_pointers4
+int subtract_pointers4(void* a, void *b) {
+// CHECK: [[T0:%[0-9]+]] = tail call i64 @llvm.aarch64.subp(i8* %a, i8* %b)
+// CHECK-NEXT: %cmp = icmp slt i64 [[T0]], 1
+// CHECK-NEXT:  = zext i1 %cmp to i32
+  return __arm_mte_ptrdiff(a,b) <= 0;
+}