--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/Mips/cconv/memory-layout.ll	Mon Sep 08 22:06:00 2014 +0900
@@ -0,0 +1,140 @@
+; RUN: llc -march=mips < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+; RUN: llc -march=mipsel < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+
+; RUN-TODO: llc -march=mips64 -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+; RUN-TODO: llc -march=mips64el -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+
+; RUN: llc -march=mips64 -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
+; RUN: llc -march=mips64el -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
+
+; RUN: llc -march=mips64 -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
+; RUN: llc -march=mips64el -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
+
+; Test the memory layout for all ABI's and byte orders as specified by section
+; 4 of MD00305 (MIPS ABIs Described).
+; Bitfields are not covered since they are not available as a type in LLVM IR.
+;
+; The assembly directives deal with endianness so we don't need to account for
+; that.
+
+; Deliberately request alignments that are too small for the target so we get
+; the minimum alignment instead of the preferred alignment.
+@byte = global i8 1, align 1
+@halfword = global i16 258, align 1
+@word = global i32 16909060, align 1
+@float = global float 1.0, align 1
+@dword = global i64 283686952306183, align 1
+@double = global double 1.0, align 1
+@pointer = global i8* @byte
+
+; ALL-NOT:       .align
+; ALL-LABEL: byte:
+; ALL:           .byte 1
+; ALL:           .size byte, 1
+
+; ALL:           .align 1
+; ALL-LABEL: halfword:
+; ALL:           .2byte 258
+; ALL:           .size halfword, 2
+
+; ALL:           .align 2
+; ALL-LABEL: word:
+; ALL:           .4byte 16909060
+; ALL:           .size word, 4
+
+; ALL:           .align 2
+; ALL-LABEL: float:
+; ALL:           .4byte 1065353216
+; ALL:           .size float, 4
+
+; ALL:           .align 3
+; ALL-LABEL: dword:
+; ALL:           .8byte 283686952306183
+; ALL:           .size dword, 8
+
+; ALL:           .align 3
+; ALL-LABEL: double:
+; ALL:           .8byte 4607182418800017408
+; ALL:           .size double, 8
+
+; O32:           .align 2
+; N32:           .align 2
+; N64:           .align 3
+; ALL-LABEL: pointer:
+; O32:           .4byte byte
+; O32:           .size pointer, 4
+; N32:           .4byte byte
+; N32:           .size pointer, 4
+; N64:           .8byte byte
+; N64:           .size pointer, 8
+
+@byte_array = global [2 x i8] [i8 1, i8 2], align 1
+@halfword_array = global [2 x i16] [i16 1, i16 2], align 1
+@word_array = global [2 x i32] [i32 1, i32 2], align 1
+@float_array = global [2 x float] [float 1.0, float 2.0], align 1
+@dword_array = global [2 x i64] [i64 1, i64 2], align 1
+@double_array = global [2 x double] [double 1.0, double 2.0], align 1
+@pointer_array = global [2 x i8*] [i8* @byte, i8* @byte]
+
+; ALL-NOT:       .align
+; ALL-LABEL: byte_array:
+; ALL:           .ascii "\001\002"
+; ALL:           .size byte_array, 2
+
+; ALL:           .align 1
+; ALL-LABEL: halfword_array:
+; ALL:           .2byte 1
+; ALL:           .2byte 2
+; ALL:           .size halfword_array, 4
+
+; ALL:           .align 2
+; ALL-LABEL: word_array:
+; ALL:           .4byte 1
+; ALL:           .4byte 2
+; ALL:           .size word_array, 8
+
+; ALL:           .align 2
+; ALL-LABEL: float_array:
+; ALL:           .4byte 1065353216
+; ALL:           .4byte 1073741824
+; ALL:           .size float_array, 8
+
+; ALL:           .align 3
+; ALL-LABEL: dword_array:
+; ALL:           .8byte 1
+; ALL:           .8byte 2
+; ALL:           .size dword_array, 16
+
+; ALL:           .align 3
+; ALL-LABEL: double_array:
+; ALL:           .8byte 4607182418800017408
+; ALL:           .8byte 4611686018427387904
+; ALL:           .size double_array, 16
+
+; O32:           .align 2
+; N32:           .align 2
+; N64:           .align 3
+; ALL-LABEL: pointer_array:
+; O32:           .4byte byte
+; O32:           .4byte byte
+; O32:           .size pointer_array, 8
+; N32:           .4byte byte
+; N32:           .4byte byte
+; N32:           .size pointer_array, 8
+; N64:           .8byte byte
+; N64:           .8byte byte
+; N64:           .size pointer_array, 16
+
+%mixed = type { i8, double, i16 }
+@mixed = global %mixed { i8 1, double 1.0, i16 515 }, align 1
+
+; ALL:           .align 3
+; ALL-LABEL: mixed:
+; ALL:           .byte 1
+; ALL:           .space 7
+; ALL:           .8byte 4607182418800017408
+; ALL:           .2byte 515
+; ALL:           .space 6
+; ALL:           .size mixed, 24
+
+; Bitfields are not available in LLVM IR so we can't test them here.