Initial checkin of testcases for Pi node inserter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2590 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/PiNodeInserter/Makefile

@@ -0,0 +1,10 @@
+
+LEVEL = ../../../..
+include $(LEVEL)/test/Makefile.tests
+
+TESTS := $(wildcard *.ll)
+
+all:: $(addprefix Output/, $(TESTS:%.ll=%.ll.out))
+
+Output/%.ll.out: %.ll Output/.dir $(LOPT)
+	-$(TESTRUNR) $<

test/Transforms/PiNodeInserter/substitutetest.ll

@@ -0,0 +1,16 @@
+; RUN: if as < %s | opt -pinodes -instcombine -die | dis | grep add
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+
+int "test"(int %i, int %j) {
+	%c = seteq int %i, 0
+	br bool %c, label %iIsZero, label %iIsNotZero
+
+iIsZero:
+	%j2 = add int %j, %i      ; This is always equal to j
+	ret int %j2
+
+iIsNotZero:
+	ret int 1
+}

test/Transforms/PiNodeInserter/test.ll

@@ -0,0 +1,17 @@
+
+int "test"(int %i) {
+	%c = seteq int %i, 0
+	br bool %c, label %iIsZero, label %iIsNotZero
+
+iIsZero:
+	ret int %i
+
+iIsZero2:
+	ret int 0
+iIsNotZero:
+	%d = setne int %i, 0
+	br bool %d, label %Quit, label %iIsZero2
+
+Quit:
+	ret int 1
+}