61d15ae4f5
For historic reasons, the behavior of .align differs between targets. Fortunately, there are alternatives, .p2align and .balign, which make the interpretation of the parameter explicit, and which behave consistently across targets. This patch teaches MC to use .p2align instead of .align, so that people reading code for multiple architectures don't have to remember which way each platform does its .align directive. Differential Revision: http://reviews.llvm.org/D16549 llvm-svn: 258750
141 lines
4.5 KiB
LLVM
141 lines
4.5 KiB
LLVM
; RUN: llc -march=mips < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
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; RUN: llc -march=mipsel < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
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; RUN-TODO: llc -march=mips64 -target-abi o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
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; RUN-TODO: llc -march=mips64el -target-abi o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
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; RUN: llc -march=mips64 -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
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; RUN: llc -march=mips64el -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
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; RUN: llc -march=mips64 -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
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; RUN: llc -march=mips64el -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
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; Test the memory layout for all ABI's and byte orders as specified by section
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; 4 of MD00305 (MIPS ABIs Described).
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; Bitfields are not covered since they are not available as a type in LLVM IR.
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;
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; The assembly directives deal with endianness so we don't need to account for
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; that.
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; Deliberately request alignments that are too small for the target so we get
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; the minimum alignment instead of the preferred alignment.
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@byte = global i8 1, align 1
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@halfword = global i16 258, align 1
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@word = global i32 16909060, align 1
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@float = global float 1.0, align 1
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@dword = global i64 283686952306183, align 1
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@double = global double 1.0, align 1
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@pointer = global i8* @byte
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; ALL-NOT: .p2align
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; ALL-LABEL: byte:
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; ALL: .byte 1
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; ALL: .size byte, 1
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; ALL: .p2align 1
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; ALL-LABEL: halfword:
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; ALL: .2byte 258
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; ALL: .size halfword, 2
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; ALL: .p2align 2
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; ALL-LABEL: word:
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; ALL: .4byte 16909060
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; ALL: .size word, 4
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; ALL: .p2align 2
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; ALL-LABEL: float:
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; ALL: .4byte 1065353216
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; ALL: .size float, 4
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; ALL: .p2align 3
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; ALL-LABEL: dword:
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; ALL: .8byte 283686952306183
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; ALL: .size dword, 8
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; ALL: .p2align 3
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; ALL-LABEL: double:
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; ALL: .8byte 4607182418800017408
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; ALL: .size double, 8
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; O32: .p2align 2
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; N32: .p2align 2
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; N64: .p2align 3
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; ALL-LABEL: pointer:
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; O32: .4byte byte
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; O32: .size pointer, 4
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; N32: .4byte byte
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; N32: .size pointer, 4
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; N64: .8byte byte
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; N64: .size pointer, 8
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@byte_array = global [2 x i8] [i8 1, i8 2], align 1
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@halfword_array = global [2 x i16] [i16 1, i16 2], align 1
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@word_array = global [2 x i32] [i32 1, i32 2], align 1
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@float_array = global [2 x float] [float 1.0, float 2.0], align 1
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@dword_array = global [2 x i64] [i64 1, i64 2], align 1
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@double_array = global [2 x double] [double 1.0, double 2.0], align 1
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@pointer_array = global [2 x i8*] [i8* @byte, i8* @byte]
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; ALL-NOT: .p2align
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; ALL-LABEL: byte_array:
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; ALL: .ascii "\001\002"
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; ALL: .size byte_array, 2
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; ALL: .p2align 1
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; ALL-LABEL: halfword_array:
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; ALL: .2byte 1
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; ALL: .2byte 2
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; ALL: .size halfword_array, 4
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; ALL: .p2align 2
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; ALL-LABEL: word_array:
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; ALL: .4byte 1
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; ALL: .4byte 2
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; ALL: .size word_array, 8
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; ALL: .p2align 2
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; ALL-LABEL: float_array:
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; ALL: .4byte 1065353216
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; ALL: .4byte 1073741824
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; ALL: .size float_array, 8
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; ALL: .p2align 3
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; ALL-LABEL: dword_array:
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; ALL: .8byte 1
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; ALL: .8byte 2
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; ALL: .size dword_array, 16
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; ALL: .p2align 3
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; ALL-LABEL: double_array:
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; ALL: .8byte 4607182418800017408
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; ALL: .8byte 4611686018427387904
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; ALL: .size double_array, 16
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; O32: .p2align 2
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; N32: .p2align 2
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; N64: .p2align 3
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; ALL-LABEL: pointer_array:
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; O32: .4byte byte
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; O32: .4byte byte
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; O32: .size pointer_array, 8
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; N32: .4byte byte
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; N32: .4byte byte
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; N32: .size pointer_array, 8
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; N64: .8byte byte
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; N64: .8byte byte
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; N64: .size pointer_array, 16
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%mixed = type { i8, double, i16 }
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@mixed = global %mixed { i8 1, double 1.0, i16 515 }, align 1
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; ALL: .p2align 3
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; ALL-LABEL: mixed:
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; ALL: .byte 1
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; ALL: .space 7
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; ALL: .8byte 4607182418800017408
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; ALL: .2byte 515
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; ALL: .space 6
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; ALL: .size mixed, 24
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; Bitfields are not available in LLVM IR so we can't test them here.
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