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From: Segher Boessenkool <segher@kernel.crashing.org>
To: Alan Modra <amodra@gmail.com>
Cc: Michael Meissner <meissner@linux.ibm.com>,
	gcc-patches@gcc.gnu.org,        dje.gcc@gmail.com
Subject: Re: PC-relative TLS support
Date: Mon, 11 Nov 2019 12:10:00 -0000	[thread overview]
Message-ID: <20191111115647.GT16031@gate.crashing.org> (raw)
In-Reply-To: <20190821122528.GC9455@bubble.grove.modra.org>

On Wed, Aug 21, 2019 at 09:55:28PM +0930, Alan Modra wrote:
> This patch removes !TARGET_TLS_MARKERS support.  -mtls-markers (and
> -mno-tls-markers) disappear as valid options too, because I figure
> they haven't been used too much except by people testing the
> compiler.

Okay.

> 	(rs6000_call_template_1): Delete TARGET_TLS_MARKERS test and
> 	allow other UNSPECs besides UNSPEC_TLSGD and UNSPEC_TLSLD.

Why is that?  Should we allow the other code that can happen and keep
the gcc_unreachable?  Or do we know that no other code can happen here
ever, and the extra documentation isn't useful?

> --- a/gcc/config/rs6000/rs6000.md
> +++ b/gcc/config/rs6000/rs6000.md
> @@ -9413,7 +9413,7 @@ (define_insn_and_split "*tls_gd<bits>"
>  	(unspec:P [(match_operand:P 1 "rs6000_tls_symbol_ref" "")
>  		   (match_operand:P 2 "gpc_reg_operand" "b")]
>  		  UNSPEC_TLSGD))]
> -  "HAVE_AS_TLS && TARGET_TLS_MARKERS"
> +  "HAVE_AS_TLS && !TARGET_XCOFF"

Should that be TARGET_ELF instead?

Okay for trunk with those two things looked at.  Thanks!


Segher

  parent reply	other threads:[~2019-11-11 11:56 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-14 21:36 PowerPC 'future' patches introduction Michael Meissner
2019-08-14 21:37 ` [PATCH], Patch #1 of 10, Add instruction format enumeration Michael Meissner
2019-08-14 22:11 ` [PATCH], Patch #2 of 10, Add RTL prefixed attribute Michael Meissner
2019-08-19 19:15   ` Segher Boessenkool
2019-08-14 22:12 ` [PATCH], Patch #3 of 10, Add prefixed addressing support Michael Meissner
2019-08-16  1:59   ` Bill Schmidt
2019-08-14 22:15 ` [PATCH], Patch #4 of 10, Adjust costs based on insn sizes Michael Meissner
2019-08-14 22:23 ` [PATCH], Patch #5 of 10, Make -mpcrel default for -mcpu=future Michael Meissner
2019-08-14 23:10 ` [PATCH], Patch #6 of 10, Add 'future' support to function attributes Michael Meissner
2019-08-14 23:13 ` [PATCH], Patch #7 of 10, Add support for PCREL_OPT Michael Meissner
2019-08-14 23:16 ` [PATCH], Patch #8 of 10, Miscellaneous future tests Michael Meissner
2019-08-14 23:17 ` [PATCH], Patch #9 of 10, Add tests with large memory offsets Michael Meissner
2019-08-15  3:48 ` [PATCH], Patch #10 of 10, Add pc-relative tests Michael Meissner
2019-08-15  4:05 ` PowerPC 'future' patches introduction Segher Boessenkool
2019-08-15  8:10 ` PC-relative TLS support Alan Modra
2019-08-15 19:47   ` Segher Boessenkool
2019-08-16  4:09     ` Alan Modra
2019-08-19 13:39       ` Segher Boessenkool
2019-08-21 13:34         ` Alan Modra
2019-11-11  7:40           ` Alan Modra
2019-11-11 11:45             ` Segher Boessenkool
2019-11-11 12:10           ` Segher Boessenkool [this message]
2019-11-11 13:36             ` Alan Modra
2019-08-15 21:35 ` [PATCH], Patch #1 replacement (fix issues with future TLS patches) Michael Meissner
2019-08-16  0:25   ` Segher Boessenkool
2019-08-16  0:42   ` Bill Schmidt

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