5 files changed, 185 insertions, 0 deletions
diff --git a/clang/test/CodeGen/arm-cmse-nonsecure.c b/clang/test/CodeGen/arm-cmse-nonsecure.c
new file mode 100644
index 00000000000..2a483a71f59
--- /dev/null
+++ b/clang/test/CodeGen/arm-cmse-nonsecure.c
@@ -0,0 +1,52 @@
+// RUN: %clang  -mlittle-endian -target thumbv8m.base-eabi  -emit-llvm -S -o - %s | FileCheck %s
+// RUN: %clang  -mbig-endian    -target thumbv8m.base-eabi  -emit-llvm -S -o - %s | FileCheck %s
+
+#include <arm_cmse.h>
+
+unsigned test_cmse_primitives(void *p) {
+// CHECK: define {{.*}} i32 @test_cmse_primitives
+  cmse_address_info_t tt_val, ttt_val;
+  unsigned sum;
+
+  tt_val = cmse_TT(p);
+  ttt_val = cmse_TTT(p);
+// CHECK: call i32 @llvm.arm.cmse.tt
+// CHECK: call i32 @llvm.arm.cmse.ttt
+// CHECK-NOT: llvm.arm.cmse.tta
+// CHECK-NOT: llvm.arm.cmse.ttat
+
+  sum = tt_val.value;
+  sum += ttt_val.value;
+
+  sum += tt_val.flags.mpu_region;
+  sum += tt_val.flags.mpu_region_valid;
+  sum += tt_val.flags.read_ok;
+  sum += tt_val.flags.readwrite_ok;
+
+  return sum;
+}
+
+void *test_address_range(void *p) {
+// CHECK: define {{.*}} i8* @test_address_range
+  return cmse_check_address_range(p, 128, CMSE_MPU_UNPRIV
+                                        | CMSE_MPU_READWRITE
+                                        | CMSE_MPU_READ);
+// CHECK: call i32 @llvm.arm.cmse.tt
+// CHECK: call i32 @llvm.arm.cmse.ttt
+// CHECK-NOT: llvm.arm.cmse.tta
+// CHECK-NOT: llvm.arm.cmse.ttat
+}
+
+typedef struct {
+    int x, y, z;
+} Point;
+
+void *test_pointed_object(void *p) {
+// CHECK: define {{.*}} i8* @test_pointed_object
+  Point *pt = (Point *)p;
+  cmse_check_pointed_object(pt, CMSE_MPU_READ);
+// CHECK: call i32 @llvm.arm.cmse.tt
+// CHECK: call i32 @llvm.arm.cmse.ttt
+// CHECK-NOT: call i32 @llvm.arm.cmse.tta
+// CHECK-NOT: call i32 @llvm.arm.cmse.ttat
+}
diff --git a/clang/test/CodeGen/arm-cmse-secure.c b/clang/test/CodeGen/arm-cmse-secure.c
new file mode 100644
index 00000000000..716887254e5
--- /dev/null
+++ b/clang/test/CodeGen/arm-cmse-secure.c
@@ -0,0 +1,66 @@
+// RUN: %clang -mlittle-endian -mcmse -target thumbv8m.base-eabi -emit-llvm -S -o - %s | FileCheck %s
+// RUN: %clang -mbig-endian    -mcmse -target thumbv8m.base-eabi -emit-llvm -S -o - %s | FileCheck %s
+
+#include <arm_cmse.h>
+
+unsigned test_cmse_primitives(void *p) {
+// CHECK: define {{.*}} i32 @test_cmse_primitives
+  cmse_address_info_t tt_val, ttt_val;
+  cmse_address_info_t tta_val, ttat_val;
+  unsigned sum;
+
+  tt_val = cmse_TT(p);
+  ttt_val = cmse_TTT(p);
+  tta_val = cmse_TTA(p);
+  ttat_val = cmse_TTAT(p);
+// CHECK: call i32 @llvm.arm.cmse.tt
+// CHECK: call i32 @llvm.arm.cmse.ttt
+// CHECK: call i32 @llvm.arm.cmse.tta
+// CHECK: call i32 @llvm.arm.cmse.ttat
+
+  sum = tt_val.value;
+  sum += ttt_val.value;
+  sum += tta_val.value;
+  sum += ttat_val.value;
+
+  sum += tt_val.flags.mpu_region;
+  sum += tt_val.flags.sau_region;
+  sum += tt_val.flags.mpu_region_valid;
+  sum += tt_val.flags.sau_region_valid;
+  sum += tt_val.flags.read_ok;
+  sum += tt_val.flags.readwrite_ok;
+  sum += tt_val.flags.nonsecure_read_ok;
+  sum += tt_val.flags.nonsecure_readwrite_ok;
+  sum += tt_val.flags.secure;
+  sum += tt_val.flags.idau_region_valid;
+  sum += tt_val.flags.idau_region;
+
+  return sum;
+}
+
+void *test_address_range(void *p) {
+// CHECK: define {{.*}} i8* @test_address_range
+  return cmse_check_address_range(p, 128, CMSE_MPU_UNPRIV
+                                        | CMSE_MPU_NONSECURE
+                                        | CMSE_MPU_READWRITE);
+// CHECK: call i32 @llvm.arm.cmse.tt
+// CHECK: call i32 @llvm.arm.cmse.ttt
+// CHECK: call i32 @llvm.arm.cmse.tta
+// CHECK: call i32 @llvm.arm.cmse.ttat
+}
+
+typedef struct {
+  int x, y, z;
+} Point;
+
+void *test_pointed_object(void *p) {
+// CHECK: define {{.*}} i8* @test_pointed_object
+  Point *pt = (Point *)p;
+  cmse_check_pointed_object(pt, CMSE_NONSECURE
+                              | CMSE_MPU_READ
+                              | CMSE_AU_NONSECURE);
+// CHECK: call i32 @llvm.arm.cmse.tt
+// CHECK: call i32 @llvm.arm.cmse.ttt
+// CHECK: call i32 @llvm.arm.cmse.tta
+// CHECK: call i32 @llvm.arm.cmse.ttat
+}
diff --git a/clang/test/CodeGen/arm-cmse.c b/clang/test/CodeGen/arm-cmse.c
new file mode 100644
index 00000000000..0f8247748dd
--- /dev/null
+++ b/clang/test/CodeGen/arm-cmse.c
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -triple thumbv8m.base-none-eabi -O1 -emit-llvm %s -o - | FileCheck %s
+int test_cmse_TT(void *p){
+  return __builtin_arm_cmse_TT(p);
+  // CHECK: call i32 @llvm.arm.cmse.tt(i8* %{{.*}})
+}
+
+int test_cmse_TTT(void *p){
+  return __builtin_arm_cmse_TTT(p);
+  // CHECK: call i32 @llvm.arm.cmse.ttt(i8* %{{.*}})
+}
+
+int test_cmse_TTA(void *p){
+  return __builtin_arm_cmse_TTA(p);
+  // CHECK: call i32 @llvm.arm.cmse.tta(i8* %{{.*}})
+}
+
+int test_cmse_TTAT(void *p){
+  return __builtin_arm_cmse_TTAT(p);
+  // CHECK: call i32 @llvm.arm.cmse.ttat(i8* %{{.*}})
+}
diff --git a/clang/test/Headers/arm-cmse-header-ns.c b/clang/test/Headers/arm-cmse-header-ns.c
new file mode 100644
index 00000000000..a6e63ef8414
--- /dev/null
+++ b/clang/test/Headers/arm-cmse-header-ns.c
@@ -0,0 +1,27 @@
+// RUN:     %clang_cc1 -triple thumbv8m.base-eabi -fsyntax-only        %s 2>&1 | FileCheck --check-prefix=CHECK-c %s
+// RUN: not %clang_cc1 -triple thumbv8m.base-eabi -fsyntax-only -x c++ %s 2>&1 | FileCheck --check-prefix=CHECK-cpp %s
+
+#include <arm_cmse.h>
+
+typedef void (*callback_t)(void);
+
+void func(callback_t fptr, void *p)
+{
+  cmse_TT(p);
+  cmse_TTT(p);
+  cmse_TT_fptr(fptr);
+  cmse_TTT_fptr(fptr);
+
+  cmse_TTA(p);
+  cmse_TTAT(p);
+  cmse_TTA_fptr(fptr);
+  cmse_TTAT_fptr(fptr);
+// CHECK-c: warning: implicit declaration of function 'cmse_TTA'
+// CHECK-c: warning: implicit declaration of function 'cmse_TTAT'
+// CHECK-c: warning: implicit declaration of function 'cmse_TTA_fptr'
+// CHECK-c: warning: implicit declaration of function 'cmse_TTAT_fptr'
+// CHECK-cpp: error: use of undeclared identifier 'cmse_TTA'
+// CHECK-cpp: error: use of undeclared identifier 'cmse_TTAT'
+// CHECK-cpp: error: use of undeclared identifier 'cmse_TTA_fptr'
+// CHECK-cpp: error: use of undeclared identifier 'cmse_TTAT_fptr'
+}
diff --git a/clang/test/Headers/arm-cmse-header.c b/clang/test/Headers/arm-cmse-header.c
new file mode 100644
index 00000000000..862572d8adc
--- /dev/null
+++ b/clang/test/Headers/arm-cmse-header.c
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -triple thumbv8m.base-eabi  -fsyntax-only -ffreestanding        %s -verify -mcmse
+// RUN: %clang_cc1 -triple thumbv8m.base-eabi  -fsyntax-only -ffreestanding -x c++ %s -verify -mcmse
+// expected-no-diagnostics
+
+#include <arm_cmse.h>
+
+typedef void (*callback_t)(void);
+
+void func(callback_t fptr, void *p)
+{
+  cmse_TT(p);
+  cmse_TTT(p);
+  cmse_TTA(p);
+  cmse_TTAT(p);
+
+  cmse_TT_fptr(fptr);
+  cmse_TTT_fptr(fptr);
+  cmse_TTA_fptr(fptr);
+  cmse_TTAT_fptr(fptr);
+}