From f2cf329ccd1bf43d7464dab760e907775e414cab Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Tue, 17 Aug 2010 22:32:48 +0000
Subject: [PATCH] Lex: Add #pragma clang __debug {llvm_fatal_error,
llvm_unreachable}, for testing those crash paths.
llvm-svn: 111311
---
.../include/clang/Basic/DiagnosticLexKinds.td | 3 +++
clang/lib/Lex/Pragma.cpp | 20 ++++++++++++-------
2 files changed, 16 insertions(+), 7 deletions(-)
diff --git a/clang/include/clang/Basic/DiagnosticLexKinds.td b/clang/include/clang/Basic/DiagnosticLexKinds.td
index 5068a055e869..08ba1c43ccf9 100644
--- a/clang/include/clang/Basic/DiagnosticLexKinds.td
+++ b/clang/include/clang/Basic/DiagnosticLexKinds.td
@@ -268,6 +268,9 @@ def warn_pragma_diagnostic_invalid_token :
def warn_pragma_diagnostic_unknown_warning :
ExtWarn<"unknown warning group '%0', ignored">,
InGroup<UnknownPragmas>;
+// - #pragma __debug
+def warn_pragma_debug_unexpected_command : Warning<
+ "unexpected debug command '%0'">;
def err_pragma_comment_unknown_kind : Error<"unknown kind of pragma comment">;
def err_defined_macro_name : Error<"'defined' cannot be used as a macro name">;
diff --git a/clang/lib/Lex/Pragma.cpp b/clang/lib/Lex/Pragma.cpp
index eec1d1d6eea5..0ef87b96d3ba 100644
--- a/clang/lib/Lex/Pragma.cpp
+++ b/clang/lib/Lex/Pragma.cpp
@@ -20,6 +20,7 @@
#include "clang/Lex/LexDiagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
+#include "llvm/Support/ErrorHandling.h"
#include <algorithm>
using namespace clang;
@@ -697,20 +698,25 @@ struct PragmaDebugHandler : public PragmaHandler {
}
IdentifierInfo *II = Tok.getIdentifierInfo();
- if (II->isStr("overflow_stack")) {
- DebugOverflowStack();
+ if (II->isStr("assert")) {
+ assert(0 && "This is an assertion!");
} else if (II->isStr("crash")) {
- DebugCrash();
+ *(volatile int*) 0x11 = 0;
+ } else if (II->isStr("llvm_fatal_error")) {
+ llvm::report_fatal_error("#pragma clang __debug llvm_fatal_error");
+ } else if (II->isStr("llvm_unreachable")) {
+ llvm_unreachable("#pragma clang __debug llvm_unreachable");
+ } else if (II->isStr("overflow_stack")) {
+ DebugOverflowStack();
+ } else {
+ PP.Diag(Tok, diag::warn_pragma_debug_unexpected_command)
+ << II->getName();
}
}
void DebugOverflowStack() {
DebugOverflowStack();
}
-
- void DebugCrash() {
- *(volatile int*) 0x11 = 0;
- }
};
/// PragmaDiagnosticHandler - e.g. '#pragma GCC diagnostic ignored "-Wformat"'