Add comments and test case for [DAG] Keep the opaque constant flag when performing...

[oota-llvm.git] / test / CodeGen / X86 / const-base-addr.ll

diff --git a/test/CodeGen/X86/const-base-addr.ll b/test/CodeGen/X86/const-base-addr.ll
new file mode 100644 (file)
index 0000000..f859d7f
--- /dev/null
+++ b/test/CodeGen/X86/const-base-addr.ll
@@ -0,0 +1,24 @@
+; RUN: llc < %s | FileCheck %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 {
+; CHECK-LABEL:  test1
+; CHECK:        movabsq $123456789012345678, %rcx
+; CHECK-NEXT:   movl  4(%rcx), %eax
+; CHECK-NEXT:   addl  8(%rcx), %eax
+; CHECK-NEXT:   addl  12(%rcx), %eax
+  %addr1 = getelementptr %T* inttoptr (i64 123456789012345678 to %T*), i32 0, i32 1
+  %tmp1 = load i32* %addr1
+  %addr2 = getelementptr %T* inttoptr (i64 123456789012345678 to %T*), i32 0, i32 2
+  %tmp2 = load i32* %addr2
+  %addr3 = getelementptr %T* inttoptr (i64 123456789012345678 to %T*), i32 0, i32 3
+  %tmp3 = load i32* %addr3
+  %tmp4 = add i32 %tmp1, %tmp2
+  %tmp5 = add i32 %tmp3, %tmp4
+  ret i32 %tmp5
+}
+