miri-unleash test for llvm_asm

Author: RalfJung

src/test/ui/consts/miri_unleashed/inline_asm.rs

@@ -0,0 +1,15 @@
+// compile-flags: -Zunleash-the-miri-inside-of-you
+// only-x86_64
+#![feature(llvm_asm)]
+#![allow(const_err)]
+
+fn main() {}
+
+// Make sure we catch executing bad drop functions.
+// The actual error is tested by the error-pattern above.
+static TEST_BAD: () = {
+    unsafe { llvm_asm!("xor %eax, %eax" ::: "eax"); }
+    //~^ ERROR could not evaluate static initializer
+    //~| NOTE in this expansion of llvm_asm!
+    //~| NOTE inline assembly is not supported
+};

src/test/ui/consts/miri_unleashed/inline_asm.stderr

@@ -0,0 +1,11 @@
+error[E0080]: could not evaluate static initializer
+  --> $DIR/inline_asm.rs:11:14
+   |
+LL |     unsafe { llvm_asm!("xor %eax, %eax" ::: "eax"); }
+   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ inline assembly is not supported
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0080`.