fix PR6936: don't generate line marker directives when preprocessing
.S files. "# 123" is passed through as-is, not treated as a line
marker in this mode. No testcase, because it would be nasty and isn't
worth it.
llvm-svn: 102391
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index ea0f8c0..e035afd 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -501,7 +501,11 @@
InitializeFileRemapping(PP.getDiagnostics(), PP.getSourceManager(),
PP.getFileManager(), InitOpts);
- Builder.append("# 1 \"<built-in>\" 3");
+ // Emit line markers for various builtin sections of the file. We don't do
+ // this in asm preprocessor mode, because "# 4" is not a line marker directive
+ // in this mode.
+ if (!PP.getLangOptions().AsmPreprocessor)
+ Builder.append("# 1 \"<built-in>\" 3");
// Install things like __POWERPC__, __GNUC__, etc into the macro table.
if (InitOpts.UsePredefines)
@@ -510,7 +514,8 @@
// Add on the predefines from the driver. Wrap in a #line directive to report
// that they come from the command line.
- Builder.append("# 1 \"<command line>\" 1");
+ if (!PP.getLangOptions().AsmPreprocessor)
+ Builder.append("# 1 \"<command line>\" 1");
// Process #define's and #undef's in the order they are given.
for (unsigned i = 0, e = InitOpts.Macros.size(); i != e; ++i) {
@@ -536,7 +541,8 @@
}
// Exit the command line and go back to <built-in> (2 is LC_LEAVE).
- Builder.append("# 1 \"<built-in>\" 2");
+ if (!PP.getLangOptions().AsmPreprocessor)
+ Builder.append("# 1 \"<built-in>\" 2");
// Copy PredefinedBuffer into the Preprocessor.
PP.setPredefines(Predefines.str());