[llvm] r180671 - AArch64: convert MC-layer test to .s file

[Rafael Espíndola]

Thanks!

On 27 April 2013 07:56, Tim Northover <Tim.Northover at arm.com> wrote:
> Author: tnorthover
> Date: Sat Apr 27 06:56:14 2013
> New Revision: 180671
>
> URL: http://llvm.org/viewvc/llvm-project?rev=180671&view=rev
> Log:
> AArch64: convert MC-layer test to .s file
>
> The CodeGen aspects of this test are already covered by cfi-frame.ll;
> making it an assembly file reduces the risk of incidental changes
> affecting the test.
>
> Added:
>     llvm/trunk/test/DebugInfo/AArch64/eh_frame.s
> Removed:
>     llvm/trunk/test/DebugInfo/AArch64/eh_frame.ll
>
> Removed: llvm/trunk/test/DebugInfo/AArch64/eh_frame.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/AArch64/eh_frame.ll?rev=180670&view=auto
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/AArch64/eh_frame.ll (original)
> +++ llvm/trunk/test/DebugInfo/AArch64/eh_frame.ll (removed)
> @@ -1,51 +0,0 @@
> -; RUN: llc -verify-machineinstrs -mtriple=aarch64-none-linux-gnu %s -filetype=obj -o %t
> -; RUN: llvm-objdump -s %t | FileCheck %s
> - at var = global i32 0
> -
> -declare void @bar()
> -
> -define i64 @check_largest_class(i32 %in)  {
> -  %res = load i32* @var
> -  call void @bar()
> -  %ext = zext i32 %res to i64
> -  ret i64 %ext
> -}
> -
> -; The really key points we're checking here are:
> -;  * Return register is x30.
> -;  * Pointer format is 0x1b (GNU doesn't appear to understand others).
> -
> -; The rest is largely incidental, but not expected to change regularly.
> -
> -; Output is:
> -
> -; CHECK: Contents of section .eh_frame:
> -; CHECK-NEXT: 0000 10000000 00000000 017a5200 017c1e01  .........zR..|..
> -; CHECK-NEXT: 0010 1b0c1f00 18000000 18000000 00000000  ................
> -
> -
> -; Won't check the rest, it's rather incidental.
> -; 0020 24000000 00440c1f 10449e02 93040000  $....D...D......
> -
> -
> -; The first CIE:
> -; -------------------
> -; 10000000: length of first CIE = 0x10
> -; 00000000: This is a CIE
> -; 01: version = 0x1
> -; 7a 52 00: augmentation string "zR" -- pointer format is specified
> -; 01: code alignment factor 1
> -; 7c: data alignment factor -4
> -; 1e: return address register 30 (== x30).
> -; 01: 1 byte of augmentation
> -; 1b: pointer format 1b: DW_EH_PE_pcrel | DW_EH_PE_sdata4
> -; 0c 1f 00: initial instructions: "DW_CFA_def_cfa x31 ofs 0" in this case
> -
> -; Next the FDE:
> -; -------------
> -; 18000000: FDE length 0x18
> -; 18000000: Uses CIE 0x18 backwards (only coincidentally same as above)
> -; 00000000: PC begin for this FDE is at 00000000 (relocation is applied here)
> -; 24000000: FDE applies up to PC begin+0x24
> -; 00: Augmentation string length 0 for this FDE
> -; Rest: call frame instructions
>
> Added: llvm/trunk/test/DebugInfo/AArch64/eh_frame.s
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/AArch64/eh_frame.s?rev=180671&view=auto
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/AArch64/eh_frame.s (added)
> +++ llvm/trunk/test/DebugInfo/AArch64/eh_frame.s Sat Apr 27 06:56:14 2013
> @@ -0,0 +1,48 @@
> +// RUN: llvm-mc -triple aarch64-none-linux-gnu -filetype=obj %s -o %t
> +// RUN: llvm-objdump -s %t | FileCheck %s
> +        .text
> +        .globl foo
> +        .type foo, at function
> +foo:
> +        .cfi_startproc
> +        ret
> +        .cfi_endproc
> +
> +// The really key points we're checking here are:
> +//  * Return register is x30.
> +//  * Pointer format is 0x1b (GNU doesn't appear to understand others).
> +
> +// The rest is largely incidental, but not expected to change regularly.
> +
> +// Output is:
> +
> +// CHECK: Contents of section .eh_frame:
> +// CHECK-NEXT: 0000 10000000 00000000 017a5200 017c1e01  .........zR..|..
> +// CHECK-NEXT: 0010 1b0c1f00 10000000 18000000 00000000  ................
> +
> +
> +// Won't check the rest, it's rather incidental.
> +// 0020 04000000 00000000                    ........
> +
> +
> +
> +// The first CIE:
> +// -------------------
> +// 10000000: length of first CIE = 0x10
> +// 00000000: This is a CIE
> +// 01: version = 0x1
> +// 7a 52 00: augmentation string "zR" -- pointer format is specified
> +// 01: code alignment factor 1
> +// 7c: data alignment factor -4
> +// 1e: return address register 30 (== x30).
> +// 01: 1 byte of augmentation
> +// 1b: pointer format 1b: DW_EH_PE_pcrel | DW_EH_PE_sdata4
> +// 0c 1f 00: initial instructions: "DW_CFA_def_cfa x31 ofs 0" in this case
> +
> +// Next the FDE:
> +// -------------
> +// 10000000: FDE length 0x10
> +// 18000000: Uses CIE 0x18 backwards (only coincidentally same as above)
> +// 00000000: PC begin for this FDE is at 00000000 (relocation is applied here)
> +// 04000000: FDE applies up to PC begin+0x14
> +// 00: Augmentation string length 0 for this FDE
>
>
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