Fix an icmp+sdiv optimization to check for and handle an overflow

condition. This fixes PR2740.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/InstCombine/div-cmp-overflow.ll

@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep sdiv
+; PR2740
+
+define i1 @func_75(i32 %i2) nounwind {
+	%i3 = sdiv i32 %i2, -1328634635
+	%i4 = icmp eq i32 %i3, -1
+	ret i1 %i4
+}