Improve handling of SelectInst.
Reorder operations to remove duplicated work.
Fix to leave floating-point types out of the optimization.
Add tests to predsimplify.ll for SwitchInst and SelectInst handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30055 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/PredicateSimplifier/2006-08-02-Switch.ll b/test/Transforms/PredicateSimplifier/2006-08-02-Switch.ll
new file mode 100644
index 0000000..97f2a5a
--- /dev/null
+++ b/test/Transforms/PredicateSimplifier/2006-08-02-Switch.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | opt -predsimplify -disable-output
+
+fastcc void %_ov_splice(int %n1, int %n2, int %ch2) {
+entry:
+	%tmp = setgt int %n1, %n2		; <bool> [#uses=1]
+	%n.0 = select bool %tmp, int %n2, int %n1		; <int> [#uses=1]
+	%tmp104 = setlt int 0, %ch2		; <bool> [#uses=1]
+	br bool %tmp104, label %cond_true105, label %return
+
+cond_true95:		; preds = %cond_true105
+	ret void
+
+bb98:		; preds = %cond_true105
+	ret void
+
+cond_true105:		; preds = %entry
+	%tmp94 = setgt int %n.0, 0		; <bool> [#uses=1]
+	br bool %tmp94, label %cond_true95, label %bb98
+
+return:		; preds = %entry
+	ret void
+}