1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/inline-asm-stack-realign.ll b/llvm/test/CodeGen/X86/inline-asm-stack-realign.ll
new file mode 100644
index 00000000000..476a628c8bb
--- /dev/null
+++ b/llvm/test/CodeGen/X86/inline-asm-stack-realign.ll
@@ -0,0 +1,16 @@
+; RUN: not llc -mtriple=i686-pc-win32 < %s 2>&1 | FileCheck %s
+
+; We don't currently support realigning the stack and adjusting the stack
+; pointer in inline asm.  This commonly happens in MS inline assembly using
+; push and pop.
+
+; CHECK: Stack realignment in presence of dynamic stack adjustments is not supported with inline assembly
+
+define i32 @foo() {
+entry:
+  %r = alloca i32, align 16
+  store i32 -1, i32* %r, align 16
+  call void asm sideeffect inteldialect "push esi\0A\09xor esi, esi\0A\09mov dword ptr $0, esi\0A\09pop esi", "=*m,~{flags},~{esi},~{esp},~{dirflag},~{fpsr},~{flags}"(i32* %r)
+  %0 = load i32* %r, align 16
+  ret i32 %0
+}