Prevent clang from emitting output when input has errors
+ test case
<rdar://problem/6080040>
http://llvm.org/bugs/show_bug.cgi?id=2280
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53756 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 5e8f51c..cf3f979 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -1285,6 +1285,12 @@
ParseAST(PP, Consumer, Stats);
}
+ // Don't emit code when the input had errors.
+ if (CodeGenModule && PP.getDiagnostics().hasErrorOccurred()) {
+ delete CodeGenModule;
+ CodeGenModule = 0;
+ }
+
// If running the code generator, finish up now.
if (CodeGenModule) {
std::ostream *Out;
diff --git a/test/CodeGen/2008-07-17-no-emit-on-error.c b/test/CodeGen/2008-07-17-no-emit-on-error.c
new file mode 100644
index 0000000..5339695
--- /dev/null
+++ b/test/CodeGen/2008-07-17-no-emit-on-error.c
@@ -0,0 +1,10 @@
+// RUN: rm -f %t1.bc
+// RUN: ! clang %s -emit-llvm-bc -o %t1.bc
+// RUN: ! test -f %t1.bc
+
+void f() {
+}
+
+void g() {
+ *10;
+}