PR3934: Fix a bogus two-address pass assertion.

[oota-llvm.git] / test / CodeGen / X86 / 2009-04-13-2AddrAssert.ll

diff --git a/test/CodeGen/X86/2009-04-13-2AddrAssert.ll b/test/CodeGen/X86/2009-04-13-2AddrAssert.ll
new file mode 100644 (file)
index 0000000..7f94c6c
--- /dev/null
+++ b/test/CodeGen/X86/2009-04-13-2AddrAssert.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | llc
+; rdar://6781755
+; PR3934
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "x86_64-undermydesk-freebsd8.0"
+
+define i32 @main(i32 %argc, i8** nocapture %argv) nounwind {
+entry:
+        %call = tail call i32 (...)* @getpid()          ; <i32> [#uses=1]
+        %conv = trunc i32 %call to i16          ; <i16> [#uses=1]
+        %0 = tail call i16 asm "xchgb ${0:h}, ${0:b}","=Q,0,~{dirflag},~{fpsr},~{flags}"(i16 %conv) nounwind           ; <i16> [#uses=0]
+        ret i32 undef
+}
+
+declare i32 @getpid(...)