[WebAssembly] Add a test for inline-asm "m" constraints.

llvm-svn: 317711

diff --git a/llvm/test/CodeGen/WebAssembly/inline-asm-m.ll b/llvm/test/CodeGen/WebAssembly/inline-asm-m.ll
new file mode 100644 (file)
index 0000000..8d514a5
--- /dev/null
+++ b/llvm/test/CodeGen/WebAssembly/inline-asm-m.ll
@@ -0,0 +1,13 @@
+; RUN: not llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals -no-integrated-as
+
+; Test basic inline assembly "m" operands, which are unsupported. Pass
+; -no-integrated-as since these aren't actually valid assembly syntax.
+
+target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown-wasm"
+
+define void @bar(i32* %r, i32* %s) {
+entry:
+  tail call void asm sideeffect "# $0 = bbb($1)", "=*m,*m"(i32* %s, i32* %r) #0, !srcloc !1
+  ret void
+}