Emit error when trying to use assembler syntax directives in `asm!`

1 files changed, 14 insertions, 0 deletions

diff --git a/src/test/ui/asm/inline-syntax.rs b/src/test/ui/asm/inline-syntax.rs
new file mode 100644
index 00000000000..ec8ff071885
--- /dev/null
+++ b/src/test/ui/asm/inline-syntax.rs
@@ -0,0 +1,14 @@
+#![feature(asm, llvm_asm)]
+
+fn main() {
+    unsafe {
+        asm!(".intel_syntax noprefix", "nop");
+        //~^ ERROR intel sytnax is the default syntax
+        asm!(".intel_syntax aaa noprefix", "nop");
+        //~^ ERROR intel sytnax is the default syntax
+        asm!(".att_syntax noprefix", "nop");
+        //~^ ERROR using the .att_syntax directive may cause issues
+        asm!(".att_syntax bbb noprefix", "nop");
+        //~^ ERROR using the .att_syntax directive may cause issues
+    }
+}