Make register Mips::RA allocatable if not in mips16 mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159971 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/Mips/ra-allocatable.ll b/test/CodeGen/Mips/ra-allocatable.ll
new file mode 100644
index 0000000..7621788
--- /dev/null
+++ b/test/CodeGen/Mips/ra-allocatable.ll
@@ -0,0 +1,288 @@
+; RUN: llc < %s -march=mipsel | FileCheck %s
+
+@a0 = external global i32
+@b0 = external global i32*
+@a1 = external global i32
+@b1 = external global i32*
+@a2 = external global i32
+@b2 = external global i32*
+@a3 = external global i32
+@b3 = external global i32*
+@a4 = external global i32
+@b4 = external global i32*
+@a5 = external global i32
+@b5 = external global i32*
+@a6 = external global i32
+@b6 = external global i32*
+@a7 = external global i32
+@b7 = external global i32*
+@a8 = external global i32
+@b8 = external global i32*
+@a9 = external global i32
+@b9 = external global i32*
+@a10 = external global i32
+@b10 = external global i32*
+@a11 = external global i32
+@b11 = external global i32*
+@a12 = external global i32
+@b12 = external global i32*
+@a13 = external global i32
+@b13 = external global i32*
+@a14 = external global i32
+@b14 = external global i32*
+@a15 = external global i32
+@b15 = external global i32*
+@a16 = external global i32
+@b16 = external global i32*
+@a17 = external global i32
+@b17 = external global i32*
+@a18 = external global i32
+@b18 = external global i32*
+@a19 = external global i32
+@b19 = external global i32*
+@a20 = external global i32
+@b20 = external global i32*
+@a21 = external global i32
+@b21 = external global i32*
+@a22 = external global i32
+@b22 = external global i32*
+@a23 = external global i32
+@b23 = external global i32*
+@a24 = external global i32
+@b24 = external global i32*
+@a25 = external global i32
+@b25 = external global i32*
+@a26 = external global i32
+@b26 = external global i32*
+@a27 = external global i32
+@b27 = external global i32*
+@a28 = external global i32
+@b28 = external global i32*
+@a29 = external global i32
+@b29 = external global i32*
+@c0 = external global i32*
+@c1 = external global i32*
+@c2 = external global i32*
+@c3 = external global i32*
+@c4 = external global i32*
+@c5 = external global i32*
+@c6 = external global i32*
+@c7 = external global i32*
+@c8 = external global i32*
+@c9 = external global i32*
+@c10 = external global i32*
+@c11 = external global i32*
+@c12 = external global i32*
+@c13 = external global i32*
+@c14 = external global i32*
+@c15 = external global i32*
+@c16 = external global i32*
+@c17 = external global i32*
+@c18 = external global i32*
+@c19 = external global i32*
+@c20 = external global i32*
+@c21 = external global i32*
+@c22 = external global i32*
+@c23 = external global i32*
+@c24 = external global i32*
+@c25 = external global i32*
+@c26 = external global i32*
+@c27 = external global i32*
+@c28 = external global i32*
+@c29 = external global i32*
+
+define i32 @f1() nounwind {
+entry:
+; CHECK: sw $ra, {{[0-9]+}}($sp) # 4-byte Folded Spill
+; CHECK: $ra
+; CHECK: lw $ra, {{[0-9]+}}($sp) # 4-byte Folded Reload
+; CHECK: jr $ra
+
+ %0 = load i32* @a0, align 4, !tbaa !0
+ %1 = load i32** @b0, align 4, !tbaa !3
+ store i32 %0, i32* %1, align 4, !tbaa !0
+ %2 = load i32* @a1, align 4, !tbaa !0
+ %3 = load i32** @b1, align 4, !tbaa !3
+ store i32 %2, i32* %3, align 4, !tbaa !0
+ %4 = load i32* @a2, align 4, !tbaa !0
+ %5 = load i32** @b2, align 4, !tbaa !3
+ store i32 %4, i32* %5, align 4, !tbaa !0
+ %6 = load i32* @a3, align 4, !tbaa !0
+ %7 = load i32** @b3, align 4, !tbaa !3
+ store i32 %6, i32* %7, align 4, !tbaa !0
+ %8 = load i32* @a4, align 4, !tbaa !0
+ %9 = load i32** @b4, align 4, !tbaa !3
+ store i32 %8, i32* %9, align 4, !tbaa !0
+ %10 = load i32* @a5, align 4, !tbaa !0
+ %11 = load i32** @b5, align 4, !tbaa !3
+ store i32 %10, i32* %11, align 4, !tbaa !0
+ %12 = load i32* @a6, align 4, !tbaa !0
+ %13 = load i32** @b6, align 4, !tbaa !3
+ store i32 %12, i32* %13, align 4, !tbaa !0
+ %14 = load i32* @a7, align 4, !tbaa !0
+ %15 = load i32** @b7, align 4, !tbaa !3
+ store i32 %14, i32* %15, align 4, !tbaa !0
+ %16 = load i32* @a8, align 4, !tbaa !0
+ %17 = load i32** @b8, align 4, !tbaa !3
+ store i32 %16, i32* %17, align 4, !tbaa !0
+ %18 = load i32* @a9, align 4, !tbaa !0
+ %19 = load i32** @b9, align 4, !tbaa !3
+ store i32 %18, i32* %19, align 4, !tbaa !0
+ %20 = load i32* @a10, align 4, !tbaa !0
+ %21 = load i32** @b10, align 4, !tbaa !3
+ store i32 %20, i32* %21, align 4, !tbaa !0
+ %22 = load i32* @a11, align 4, !tbaa !0
+ %23 = load i32** @b11, align 4, !tbaa !3
+ store i32 %22, i32* %23, align 4, !tbaa !0
+ %24 = load i32* @a12, align 4, !tbaa !0
+ %25 = load i32** @b12, align 4, !tbaa !3
+ store i32 %24, i32* %25, align 4, !tbaa !0
+ %26 = load i32* @a13, align 4, !tbaa !0
+ %27 = load i32** @b13, align 4, !tbaa !3
+ store i32 %26, i32* %27, align 4, !tbaa !0
+ %28 = load i32* @a14, align 4, !tbaa !0
+ %29 = load i32** @b14, align 4, !tbaa !3
+ store i32 %28, i32* %29, align 4, !tbaa !0
+ %30 = load i32* @a15, align 4, !tbaa !0
+ %31 = load i32** @b15, align 4, !tbaa !3
+ store i32 %30, i32* %31, align 4, !tbaa !0
+ %32 = load i32* @a16, align 4, !tbaa !0
+ %33 = load i32** @b16, align 4, !tbaa !3
+ store i32 %32, i32* %33, align 4, !tbaa !0
+ %34 = load i32* @a17, align 4, !tbaa !0
+ %35 = load i32** @b17, align 4, !tbaa !3
+ store i32 %34, i32* %35, align 4, !tbaa !0
+ %36 = load i32* @a18, align 4, !tbaa !0
+ %37 = load i32** @b18, align 4, !tbaa !3
+ store i32 %36, i32* %37, align 4, !tbaa !0
+ %38 = load i32* @a19, align 4, !tbaa !0
+ %39 = load i32** @b19, align 4, !tbaa !3
+ store i32 %38, i32* %39, align 4, !tbaa !0
+ %40 = load i32* @a20, align 4, !tbaa !0
+ %41 = load i32** @b20, align 4, !tbaa !3
+ store i32 %40, i32* %41, align 4, !tbaa !0
+ %42 = load i32* @a21, align 4, !tbaa !0
+ %43 = load i32** @b21, align 4, !tbaa !3
+ store i32 %42, i32* %43, align 4, !tbaa !0
+ %44 = load i32* @a22, align 4, !tbaa !0
+ %45 = load i32** @b22, align 4, !tbaa !3
+ store i32 %44, i32* %45, align 4, !tbaa !0
+ %46 = load i32* @a23, align 4, !tbaa !0
+ %47 = load i32** @b23, align 4, !tbaa !3
+ store i32 %46, i32* %47, align 4, !tbaa !0
+ %48 = load i32* @a24, align 4, !tbaa !0
+ %49 = load i32** @b24, align 4, !tbaa !3
+ store i32 %48, i32* %49, align 4, !tbaa !0
+ %50 = load i32* @a25, align 4, !tbaa !0
+ %51 = load i32** @b25, align 4, !tbaa !3
+ store i32 %50, i32* %51, align 4, !tbaa !0
+ %52 = load i32* @a26, align 4, !tbaa !0
+ %53 = load i32** @b26, align 4, !tbaa !3
+ store i32 %52, i32* %53, align 4, !tbaa !0
+ %54 = load i32* @a27, align 4, !tbaa !0
+ %55 = load i32** @b27, align 4, !tbaa !3
+ store i32 %54, i32* %55, align 4, !tbaa !0
+ %56 = load i32* @a28, align 4, !tbaa !0
+ %57 = load i32** @b28, align 4, !tbaa !3
+ store i32 %56, i32* %57, align 4, !tbaa !0
+ %58 = load i32* @a29, align 4, !tbaa !0
+ %59 = load i32** @b29, align 4, !tbaa !3
+ store i32 %58, i32* %59, align 4, !tbaa !0
+ %60 = load i32* @a0, align 4, !tbaa !0
+ %61 = load i32** @c0, align 4, !tbaa !3
+ store i32 %60, i32* %61, align 4, !tbaa !0
+ %62 = load i32* @a1, align 4, !tbaa !0
+ %63 = load i32** @c1, align 4, !tbaa !3
+ store i32 %62, i32* %63, align 4, !tbaa !0
+ %64 = load i32* @a2, align 4, !tbaa !0
+ %65 = load i32** @c2, align 4, !tbaa !3
+ store i32 %64, i32* %65, align 4, !tbaa !0
+ %66 = load i32* @a3, align 4, !tbaa !0
+ %67 = load i32** @c3, align 4, !tbaa !3
+ store i32 %66, i32* %67, align 4, !tbaa !0
+ %68 = load i32* @a4, align 4, !tbaa !0
+ %69 = load i32** @c4, align 4, !tbaa !3
+ store i32 %68, i32* %69, align 4, !tbaa !0
+ %70 = load i32* @a5, align 4, !tbaa !0
+ %71 = load i32** @c5, align 4, !tbaa !3
+ store i32 %70, i32* %71, align 4, !tbaa !0
+ %72 = load i32* @a6, align 4, !tbaa !0
+ %73 = load i32** @c6, align 4, !tbaa !3
+ store i32 %72, i32* %73, align 4, !tbaa !0
+ %74 = load i32* @a7, align 4, !tbaa !0
+ %75 = load i32** @c7, align 4, !tbaa !3
+ store i32 %74, i32* %75, align 4, !tbaa !0
+ %76 = load i32* @a8, align 4, !tbaa !0
+ %77 = load i32** @c8, align 4, !tbaa !3
+ store i32 %76, i32* %77, align 4, !tbaa !0
+ %78 = load i32* @a9, align 4, !tbaa !0
+ %79 = load i32** @c9, align 4, !tbaa !3
+ store i32 %78, i32* %79, align 4, !tbaa !0
+ %80 = load i32* @a10, align 4, !tbaa !0
+ %81 = load i32** @c10, align 4, !tbaa !3
+ store i32 %80, i32* %81, align 4, !tbaa !0
+ %82 = load i32* @a11, align 4, !tbaa !0
+ %83 = load i32** @c11, align 4, !tbaa !3
+ store i32 %82, i32* %83, align 4, !tbaa !0
+ %84 = load i32* @a12, align 4, !tbaa !0
+ %85 = load i32** @c12, align 4, !tbaa !3
+ store i32 %84, i32* %85, align 4, !tbaa !0
+ %86 = load i32* @a13, align 4, !tbaa !0
+ %87 = load i32** @c13, align 4, !tbaa !3
+ store i32 %86, i32* %87, align 4, !tbaa !0
+ %88 = load i32* @a14, align 4, !tbaa !0
+ %89 = load i32** @c14, align 4, !tbaa !3
+ store i32 %88, i32* %89, align 4, !tbaa !0
+ %90 = load i32* @a15, align 4, !tbaa !0
+ %91 = load i32** @c15, align 4, !tbaa !3
+ store i32 %90, i32* %91, align 4, !tbaa !0
+ %92 = load i32* @a16, align 4, !tbaa !0
+ %93 = load i32** @c16, align 4, !tbaa !3
+ store i32 %92, i32* %93, align 4, !tbaa !0
+ %94 = load i32* @a17, align 4, !tbaa !0
+ %95 = load i32** @c17, align 4, !tbaa !3
+ store i32 %94, i32* %95, align 4, !tbaa !0
+ %96 = load i32* @a18, align 4, !tbaa !0
+ %97 = load i32** @c18, align 4, !tbaa !3
+ store i32 %96, i32* %97, align 4, !tbaa !0
+ %98 = load i32* @a19, align 4, !tbaa !0
+ %99 = load i32** @c19, align 4, !tbaa !3
+ store i32 %98, i32* %99, align 4, !tbaa !0
+ %100 = load i32* @a20, align 4, !tbaa !0
+ %101 = load i32** @c20, align 4, !tbaa !3
+ store i32 %100, i32* %101, align 4, !tbaa !0
+ %102 = load i32* @a21, align 4, !tbaa !0
+ %103 = load i32** @c21, align 4, !tbaa !3
+ store i32 %102, i32* %103, align 4, !tbaa !0
+ %104 = load i32* @a22, align 4, !tbaa !0
+ %105 = load i32** @c22, align 4, !tbaa !3
+ store i32 %104, i32* %105, align 4, !tbaa !0
+ %106 = load i32* @a23, align 4, !tbaa !0
+ %107 = load i32** @c23, align 4, !tbaa !3
+ store i32 %106, i32* %107, align 4, !tbaa !0
+ %108 = load i32* @a24, align 4, !tbaa !0
+ %109 = load i32** @c24, align 4, !tbaa !3
+ store i32 %108, i32* %109, align 4, !tbaa !0
+ %110 = load i32* @a25, align 4, !tbaa !0
+ %111 = load i32** @c25, align 4, !tbaa !3
+ store i32 %110, i32* %111, align 4, !tbaa !0
+ %112 = load i32* @a26, align 4, !tbaa !0
+ %113 = load i32** @c26, align 4, !tbaa !3
+ store i32 %112, i32* %113, align 4, !tbaa !0
+ %114 = load i32* @a27, align 4, !tbaa !0
+ %115 = load i32** @c27, align 4, !tbaa !3
+ store i32 %114, i32* %115, align 4, !tbaa !0
+ %116 = load i32* @a28, align 4, !tbaa !0
+ %117 = load i32** @c28, align 4, !tbaa !3
+ store i32 %116, i32* %117, align 4, !tbaa !0
+ %118 = load i32* @a29, align 4, !tbaa !0
+ %119 = load i32** @c29, align 4, !tbaa !3
+ store i32 %118, i32* %119, align 4, !tbaa !0
+ %120 = load i32* @a0, align 4, !tbaa !0
+ ret i32 %120
+}
+
+!0 = metadata !{metadata !"int", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA"}
+!3 = metadata !{metadata !"any pointer", metadata !1}