From 8bf0f649234fe47e4755bfd816a9877a9e86f3b5 Mon Sep 17 00:00:00 2001
From: John Criswell <criswell@uiuc.edu>
Date: Thu, 14 Jul 2005 19:56:03 +0000
Subject: [PATCH] Regression test for PR#596: Make sure that negation of a
 minus doesn't turn into a C predecrement operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22438 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../2005-07-14-NegationToMinusMinus.ll        | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 test/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll

diff --git a/test/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll b/test/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll
new file mode 100644
index 00000000000..9880456dbe1
--- /dev/null
+++ b/test/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll
@@ -0,0 +1,19 @@
+; RUN: llvm-as < %s | llc -march=c | not grep "\-\-65535"
+; ModuleID = '<stdin>'
+target endian = little
+target pointersize = 32
+target triple = "i686-pc-linux-gnu"
+
+implementation   ; Functions:
+
+declare void %func(int)
+
+void %funcb() {
+entry:
+	%tmp.1 = sub int 0, -65535		; <int> [#uses=1]
+	call void %func( int %tmp.1 )
+	br label %return
+
+return:		; preds = %entry
+	ret void
+}