[clang] [clang-tools-extra] [clang][AST] Fix StmtProfile handling of GCCAsmStmt asm strings and clobbers (PR #201481)

[via cfe-commits]

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@@ -0,0 +1,43 @@
+// RUN: %check_clang_tidy %s bugprone-branch-clone %t --
+
+int test_asm1(int argc, char**) {
+  if (argc > 1) {
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: if with identical then and else branches [bugprone-branch-clone]
+    __asm__ volatile("" : "+r" (argc));
+  } else {
+// CHECK-MESSAGES: :[[@LINE-1]]:5: note: else branch starts here
+    __asm__ volatile("" : "+r" (argc));
+  }
+  return argc;
+}
+
+int test_asm2(int argc, char**) {
+  if (argc > 1) { // no-warning
+    __asm__ volatile("foo" : "+r" (argc));
+  } else {
+    __asm__ volatile("bar" : "+r" (argc));
+  }
+  return argc;
+}
+
+int test_asm3(int argc, char**) {
+  int Test1 = 0;
+  if (argc > 1) {
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: if with identical then and else branches [bugprone-branch-clone]
+    __asm__ volatile("" : "+r" (argc) : "r" (Test1) : "memory");
+  } else {
+// CHECK-MESSAGES: :[[@LINE-1]]:5: note: else branch starts here
+    __asm__ volatile("" : "+r" (argc) : "r" (Test1) : "memory");
+  }
+  return argc;
+}
+
+int test_asm4(int argc, char**) {
+  int Test1 = 0;
+  if (argc > 1) { // no-warning
+    __asm__ volatile("" : "+r" (argc) : "r" (Test1) : "memory");
+  } else {
+    __asm__ volatile("" : "+r" (argc) : "r" (Test1) : "cc");
+  }
+  return argc;
+}
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IamYJLee wrote:

Addressed review comment.

https://github.com/llvm/llvm-project/pull/201481