1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2010-06-28-FastAllocTiedOperand.ll b/test/CodeGen/X86/2010-06-28-FastAllocTiedOperand.ll
new file mode 100644
index 0000000..e1491a0
--- /dev/null
+++ b/test/CodeGen/X86/2010-06-28-FastAllocTiedOperand.ll
@@ -0,0 +1,22 @@
+; RUN: llc < %s -march=x86 -O0 | FileCheck %s
+; PR7509
+target triple = "i386-apple-darwin10"
+%asmtype = type { i32, i8*, i32, i32 }
+
+; Arguments 1 and 4 must be the same. No other output arguments may be
+; allocated %eax.
+
+; CHECK: InlineAsm Start
+; CHECK: arg1 %[[A1:...]]
+; CHECK-NOT: ax
+; CHECK: arg4 %[[A1]]
+; CHECK: InlineAsm End
+
+define i32 @func(i8* %s) nounwind ssp {
+entry:
+  %0 = tail call %asmtype asm "arg0 $0\0A\09arg1 $1\0A\09arg2 $2\0A\09arg3 $3\0A\09arg4 $4", "={ax},=r,=r,=r,1,~{dirflag},~{fpsr},~{flags}"(i8* %s) nounwind, !srcloc !0 ; <%0> [#uses=1]
+  %asmresult = extractvalue %asmtype %0, 0              ; <i64> [#uses=1]
+  ret i32 %asmresult
+}
+
+!0 = metadata !{i32 108}