[Asan] Loose call stack CHECK conditions

These test cases are checking specific functions in call stacks.
But if the call stack order is changed (e.g. another function is not inlined),
the frame number would be different.
This patch loose the frame number checks for those conditions.

Depends on D139827

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D152991

Author: hau-hsu

compiler-rt/test/asan/TestCases/Linux/syscalls.cpp

@@ -17,6 +17,6 @@ int main(int argc, char *argv[]) {
   __sanitizer_syscall_pre_recvmsg(0, buf - 1, 0);
   // CHECK: AddressSanitizer: stack-buffer-{{.*}}erflow
   // CHECK: READ of size {{.*}} at {{.*}} thread T0
-  // CHECK: #0 {{.*}} in __sanitizer_syscall{{.*}}recvmsg
+  // CHECK: {{#[0-9]+ .*}} in __sanitizer_syscall{{.*}}recvmsg
   return 0;
 }

compiler-rt/test/asan/TestCases/Posix/bcmp_test.cpp

@@ -12,7 +12,7 @@ int main(int argc, char **argv) {
   char a2[] = {1, static_cast<char>(2 * argc), 3, 4};
   int res = bcmp(a1, a2, 4 + argc); // BOOM
   // CHECK: AddressSanitizer: stack-buffer-overflow
-  // CHECK: {{#1.*bcmp}}
-  // CHECK: {{#2.*main}}
+  // CHECK: {{#[0-9]+ .*bcmp}}
+  // CHECK: {{#[0-9]+ .*main}}
   return res;
 }

compiler-rt/test/asan/TestCases/memcmp_test.cpp

@@ -11,7 +11,7 @@ int main(int argc, char **argv) {
   char a2[] = {1, static_cast<char>(2*argc), 3, 4};
   int res = memcmp(a1, a2, 4 + argc);  // BOOM
   // CHECK: AddressSanitizer: stack-buffer-overflow
-  // CHECK: {{#1.*memcmp}}
-  // CHECK: {{#2.*main}}
+  // CHECK: {{#[0-9]+ .*memcmp}}
+  // CHECK: {{#[0-9]+ .*main}}
   return res;
 }