[PowerPC] Fix powerpc tests

  This patch fixes test failures power8 and power9 caused by changes on
opcodes:

The dissasembler does not emit whitespace for instructions
anymore (c2b1c2754526acff8aae2fe8f5a56c2dd11d0b7f)

The dissasembler generates extended mnemonics for some instructions
instead (aae9718e4d4e8d01dcee22684e82b000203d3e52)

The ldmx instruction was removed. This instruction was never
implemented (6fbc939cfdbdf02f205c20925583738b0f835e62)

gdb/testsuite/ChangeLog:
2020-02-03  Rogerio A. Cardoso  <rcardoso@linux.ibm.com>

	* gdb.arch/powerpc-power8.exp: Delete trailing whitespace of
	tbegin., tend. instructions. Replace bctar-, bctar+, bctarl-,
	bctarl+ extended mnemonics when avaliable by bgttar, bnstarl,
	blttar, bnetarl.
	* gdb.arch/powerpc-power8.s: Fix comments. Fix instructions
	binary for blttar, bnetarl.
	* gdb.arch/powerpc-power9.exp: Delete trailing whitespace of
	wait instruction. Delete ldmx test.
	* gdb.arch/powerpc-power9.s: Delete ldmx instruction.

---
  gdb/testsuite/gdb.arch/powerpc-power8.exp | 18 +++++++++---------
  gdb/testsuite/gdb.arch/powerpc-power8.s   |  8 ++++----
  gdb/testsuite/gdb.arch/powerpc-power9.exp |  6 ++----
  gdb/testsuite/gdb.arch/powerpc-power9.s   |  2 --
  4 files changed, 15 insertions(+), 19 deletions(-)
  

On 2020-02-03 3:55 p.m., Rogerio Alves wrote:
> This patch fixes test failures power8 and power9 caused by changes on
> opcodes:
> 
> The dissasembler does not emit whitespace for instructions
> anymore (c2b1c2754526acff8aae2fe8f5a56c2dd11d0b7f)
> 
> The dissasembler generates extended mnemonics for some instructions
> instead (aae9718e4d4e8d01dcee22684e82b000203d3e52)
> 
> The ldmx instruction was removed. This instruction was never
> implemented (6fbc939cfdbdf02f205c20925583738b0f835e62)

Hi Rogerio,

Thanks for the patch.  Note that applying the patch with an older git version (1.8.3.1,
as found on gcc135 of the compile farm) failed.  When applying it locally with a more
recent git (2.25.0), it worked but said:

  warning: Patch sent with format=flowed

That probably means you sent the patch using your email client.  Please consider using
git-send-email when sending patches by email in the future to avoid formatting issues.

I've tested the patch on that machine (a Power9) and confirmed that the tests did fail
and now pass with this patch applied, so I've pushed it.

Thanks!

Simon
  

Hi Simon,

Thank you for apply my patch.

Em 04/02/2020 00:39, Simon Marchi escreveu:
> On 2020-02-03 3:55 p.m., Rogerio Alves wrote:
>> This patch fixes test failures power8 and power9 caused by changes on
>> opcodes:
>>
>> The dissasembler does not emit whitespace for instructions
>> anymore (c2b1c2754526acff8aae2fe8f5a56c2dd11d0b7f)
>>
>> The dissasembler generates extended mnemonics for some instructions
>> instead (aae9718e4d4e8d01dcee22684e82b000203d3e52)
>>
>> The ldmx instruction was removed. This instruction was never
>> implemented (6fbc939cfdbdf02f205c20925583738b0f835e62)
> 
> Hi Rogerio,
> 
> Thanks for the patch.  Note that applying the patch with an older git version (1.8.3.1,
> as found on gcc135 of the compile farm) failed.  When applying it locally with a more
> recent git (2.25.0), it worked but said:
> 
>    warning: Patch sent with format=flowed
> 
> That probably means you sent the patch using your email client.  Please consider using
> git-send-email when sending patches by email in the future to avoid formatting issues.
> 

I will do that next time. It is my first patch so I copy/paste the patch 
generated with git format-patch.

> I've tested the patch on that machine (a Power9) and confirmed that the tests did fail
> and now pass with this patch applied, so I've pushed it.
> 
> Thanks!
> 
> Simon
>