ms-inline-asm: Correctly mark MS inline ASM labels as used
Summary: This fixes PR21155.
Test Plan: The patch includes a test.
Reviewers: rnk
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D5619
llvm-svn: 219322
diff --git a/clang/test/Sema/ms-inline-asm.c b/clang/test/Sema/ms-inline-asm.c
index 6eac769..4c6948f 100644
--- a/clang/test/Sema/ms-inline-asm.c
+++ b/clang/test/Sema/ms-inline-asm.c
@@ -1,5 +1,5 @@
// REQUIRES: x86-registered-target
-// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -fasm-blocks -Wno-microsoft -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -fasm-blocks -Wno-microsoft -Wunused-label -verify -fsyntax-only
void t1(void) {
__asm __asm // expected-error {{__asm used with no assembly instructions}}
@@ -146,5 +146,11 @@
void t11() {
foo:
- __asm mov eax, foo // expected-error {{use of undeclared label 'foo'}}
+ __asm mov eax, foo // expected-error {{use of undeclared label 'foo'}} expected-warning {{unused label 'foo'}}
+}
+
+void t12() {
+ __asm foo:
+ __asm bar: // expected-warning {{unused label 'bar'}}
+ __asm jmp foo
}