Added no-FP unit test for register dump.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358767 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/hwasan/TestCases/register-dump-no-fp.c b/test/hwasan/TestCases/register-dump-no-fp.c
new file mode 100644
index 0000000..a882a1f
--- /dev/null
+++ b/test/hwasan/TestCases/register-dump-no-fp.c
@@ -0,0 +1,43 @@
+// RUN: %clang_hwasan -ffixed-x10 -ffixed-x20 -ffixed-x27 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clang_hwasan -ffixed-x10 -ffixed-x20 -ffixed-x27 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clang_hwasan -ffixed-x10 -ffixed-x20 -ffixed-x27 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clang_hwasan -ffixed-x10 -ffixed-x20 -ffixed-x27 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// REQUIRES: aarch64-target-arch
+#include <stdlib.h>
+#include <stdio.h>
+#include <sanitizer/hwasan_interface.h>
+
+__attribute__((noinline)) void f(int *p) { *p = 3; }
+
+// CHECK: ERROR: HWAddressSanitizer:
+// CHECK: #0 {{.*}} in f {{.*}}register-dump-no-fp.c:[[@LINE-3]]
+
+int main() {
+  asm volatile("mov x10, #0x2222\n"
+               "mov x20, #0x3333\n"
+               "mov x27, #0x4444\n");
+
+  int * volatile a = new int;
+  a = (int *)__hwasan_tag_pointer(a, 0);
+  f(a);
+  // CHECK: #1 {{.*}} in main {{.*}}register-dump-no-fp.c:[[@LINE-1]]
+  // CHECK: #2 {{.*}} in {{.*lib.*}}
+}
+
+// Developer note: FileCheck really doesn't like when you have a regex that
+// ends with a '}' character, e.g. the regex "[0-9]{10}" will fail, because
+// the closing '}' fails as an "unbalanced regex". We work around this by
+// encasing the trailing space after a register, or the end-of-line specifier.
+// CHECK: Registers where the failure occurred
+// CHECK-NEXT: x0{{[ ]+[0-9a-f]{16}[ ]}}x1{{[ ]+[0-9a-f]{16}[ ]}}x2{{[ ]+[0-9a-f]{16}[ ]}}x3{{[ ]+[0-9a-f]{16}$}}
+// CHECK-NEXT: x4{{[ ]+[0-9a-f]{16}[ ]}}x5{{[ ]+[0-9a-f]{16}[ ]}}x6{{[ ]+[0-9a-f]{16}[ ]}}x7{{[ ]+[0-9a-f]{16}$}}
+// CHECK-NEXT: x8{{[ ]+[0-9a-f]{16}[ ]}}x9{{[ ]+[0-9a-f]{16}[ ]}}
+// CHECK-SAME: x10 0000000000002222
+// CHECK-SAME: x11{{[ ]+[0-9a-f]{16}$}}
+// CHECK-NEXT: x12{{[ ]+[0-9a-f]{16}[ ]}}x13{{[ ]+[0-9a-f]{16}[ ]}}x14{{[ ]+[0-9a-f]{16}[ ]}}x15{{[ ]+[0-9a-f]{16}$}}
+// CHECK-NEXT: x16{{[ ]+[0-9a-f]{16}[ ]}}x17{{[ ]+[0-9a-f]{16}[ ]}}x18{{[ ]+[0-9a-f]{16}[ ]}}x19{{[ ]+[0-9a-f]{16}$}}
+// CHECK-NEXT: x20 0000000000003333
+// CHECK-SAME: x21{{[ ]+[0-9a-f]{16}[ ]}}x22{{[ ]+[0-9a-f]{16}[ ]}}x23{{[ ]+[0-9a-f]{16}$}}
+// CHECK-NEXT: x24{{[ ]+[0-9a-f]{16}[ ]}}x25{{[ ]+[0-9a-f]{16}[ ]}}x26{{[ ]+[0-9a-f]{16}[ ]}}
+// CHECK-SAME: x27 0000000000004444
+// CHECK-NEXT: x28{{[ ]+[0-9a-f]{16}[ ]}}x29{{[ ]+[0-9a-f]{16}[ ]}}x30{{[ ]+[0-9a-f]{16}$}}