new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30233 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/hoist_instr.ll b/test/Transforms/InstCombine/hoist_instr.ll
new file mode 100644 (file)
index 0000000..1b6caf6
--- /dev/null
+++ b/test/Transforms/InstCombine/hoist_instr.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | %prcontext div 1 | grep then:
+
+;; This tests that the div is hoisted into the then block.
+
+int %foo(bool %C, int %A, int %B) {
+entry:
+       br bool %C, label %then, label %endif
+
+then:
+       br label %endif
+
+endif:
+       %X = phi int [%A, %then], [15, %entry]
+       %Y = div int %X, 42
+       ret int %Y
+}