Add test case for [Constant Hoisting] Erase dead cast instructions (r204538).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205484 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/ConstantHoisting/X86/delete-dead-cast-inst.ll b/test/Transforms/ConstantHoisting/X86/delete-dead-cast-inst.ll
new file mode 100644 (file)
index 0000000..f8e478e
--- /dev/null
+++ b/test/Transforms/ConstantHoisting/X86/delete-dead-cast-inst.ll
@@ -0,0 +1,16 @@
+; Test if this compiles without assertions.
+; RUN: opt -S -consthoist < %s
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.9.0"
+
+%T = type { i32, i32, i32, i32 }
+
+define i32 @test1() nounwind {
+  %base = inttoptr i32 12345678 to %T*
+  %addr1 = getelementptr %T* %base, i32 0, i32 1
+  %addr2 = getelementptr %T* %base, i32 0, i32 2
+  %addr3 = getelementptr %T* %base, i32 0, i32 3
+  ret i32 12345678
+}
+