[PATCH] D151073: [clang] Fix label (de-)serialization in ASM statements.

[Viktoriia Bakalova via Phabricator via cfe-commits]

VitaNuo created this revision.
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VitaNuo requested review of this revision.
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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D151073

Files:
  clang/lib/Serialization/ASTReaderStmt.cpp
  clang/lib/Serialization/ASTWriterStmt.cpp
  clang/test/PCH/asm-label.cpp


Index: clang/test/PCH/asm-label.cpp
===================================================================
--- /dev/null
+++ clang/test/PCH/asm-label.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -emit-pch %s -o %t
+// RUN: %clang_cc1 -include-pch %t %s -verify
+#ifndef HEADER_H
+#define HEADER_H
+#pragma once
+template <int = 0>
+void MyMethod() {
+  void *bar;
+  some_path:
+  asm goto
+      (
+          "mov %w[foo], %w[foo]"
+          : [foo] "=r"(bar)
+          : [foo2] "r"(bar)
+          : 
+          : some_path
+      );
+  }
+#else
+void test() {
+ MyMethod();
+// expected-no-diagnostics
+}
+#endif
Index: clang/lib/Serialization/ASTWriterStmt.cpp
===================================================================
--- clang/lib/Serialization/ASTWriterStmt.cpp
+++ clang/lib/Serialization/ASTWriterStmt.cpp
@@ -317,7 +317,10 @@
     Record.AddStmt(S->getClobberStringLiteral(I));
 
   // Labels
-  for (auto *E : S->labels()) Record.AddStmt(E);
+  for (unsigned I = 0, N = S->getNumLabels(); I != N; ++I) {
+    Record.AddIdentifierRef(S->getLabelIdentifier(I));
+    Record.AddStmt(S->getLabelExpr(I));
+  }
 
   Code = serialization::STMT_GCCASM;
 }
Index: clang/lib/Serialization/ASTReaderStmt.cpp
===================================================================
--- clang/lib/Serialization/ASTReaderStmt.cpp
+++ clang/lib/Serialization/ASTReaderStmt.cpp
@@ -400,8 +400,10 @@
     Clobbers.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
 
   // Labels
-  for (unsigned I = 0, N = NumLabels; I != N; ++I)
+  for (unsigned I = 0, N = NumLabels; I != N; ++I) {
+    Names.push_back(Record.readIdentifier());
     Exprs.push_back(Record.readSubStmt());
+  }
 
   S->setOutputsAndInputsAndClobbers(Record.getContext(),
                                     Names.data(), Constraints.data(),


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