From: Jan Beulich <jbeulich@suse.com>
To: Indu Bhagat <indu.bhagat@oracle.com>
Cc: binutils@sourceware.org
Subject: Re: [PATCH, V4 09/14] opcodes: i386: new marker for insns that implicitly update stack pointer
Date: Fri, 5 Jan 2024 15:05:21 +0100 [thread overview]
Message-ID: <f82dcae2-1ec2-42ec-b5bc-a86d89332f9d@suse.com> (raw)
In-Reply-To: <20240103074341.3858511-1-indu.bhagat@oracle.com>
On 03.01.2024 08:43, Indu Bhagat wrote:
> --- a/opcodes/i386-opc.h
> +++ b/opcodes/i386-opc.h
> @@ -750,6 +750,9 @@ enum
> /* No CSPAZO flags update indication. */
> NF,
>
> + /* Instruction updates stack pointer implicitly. */
> + ImplicitStackOp,
> +
> /* The last bitfield in i386_opcode_modifier. */
> Opcode_Modifier_Num
> };
> @@ -796,6 +799,7 @@ typedef struct i386_opcode_modifier
> unsigned int isa64:2;
> unsigned int noegpr:1;
> unsigned int nf:1;
> + unsigned int implicitstackop:1;
> } i386_opcode_modifier;
I'm not happy to see a new attribute be introduced for this (a new
OperandConstraint enumerator would seem more appropriate), while at
the same time I can see that the Rex2 attribute used in two of the
affected insns presently makes this impossible. However, with no
other way out, I'd rather see Rex2 become a standalone attribute,
and this one be another operand constraint.
Jan
next prev parent reply other threads:[~2024-01-05 14:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-03 7:15 [PATCH,V4 00/14] Synthesize CFI for hand-written asm Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 01/14] gas: dw2gencfi: minor rejig for cfi_sections_set and all_cfi_sections Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 02/14] gas: dw2gencfi: use all_cfi_sections instead of cfi_sections Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 03/14] gas: dw2gencfi: expose a new cfi_set_last_fde API Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 04/14] gas: dw2gencfi: move some tc_* defines to the header file Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 05/14] gas: dw2gencfi: expose dot_cfi_sections for scfidw2gen Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 06/14] gas: dw2gencfi: externalize the all_cfi_sections Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 07/14] gas: add new command line option --scfi[=all,none] Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 08/14] gas: scfidw2gen: new functionality to prepare for SCFI Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 09/14] opcodes: i386: new marker for insns that implicitly update stack pointer Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 10/14] gas: synthesize CFI for hand-written asm Indu Bhagat
2024-01-05 13:58 ` Jan Beulich
2024-01-08 0:46 ` Indu Bhagat
2024-01-08 8:16 ` Jan Beulich
2024-01-08 8:33 ` Indu Bhagat
2024-01-08 19:33 ` Indu Bhagat
2024-01-09 9:30 ` Jan Beulich
2024-01-10 6:10 ` Indu Bhagat
2024-01-10 9:44 ` Jan Beulich
2024-01-10 11:26 ` Indu Bhagat
2024-01-10 14:15 ` Jan Beulich
2024-01-10 19:43 ` Indu Bhagat
2024-01-11 8:13 ` Jan Beulich
2024-01-11 18:14 ` Indu Bhagat
2024-01-17 1:20 ` Indu Bhagat
2024-01-17 8:09 ` Jan Beulich
2024-01-03 7:15 ` [PATCH,V4 11/14] gas: doc: update documentation for the new listing option Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 12/14] i386-reg.tbl: Add a comment to reflect dependency on ordering Indu Bhagat
2024-01-03 7:15 ` [PATCH,V4 13/14] gas: testsuite: add a x86_64 testsuite for SCFI Indu Bhagat
2024-01-05 14:22 ` Jan Beulich
2024-01-05 22:29 ` Indu Bhagat
2024-01-08 8:11 ` Jan Beulich
2024-01-03 7:15 ` [PATCH,V4 14/14] gas/NEWS: announce the new SCFI command line option Indu Bhagat
2024-01-03 7:43 ` [PATCH,V4 09/14] opcodes: i386: new marker for insns that implicitly update stack pointer Indu Bhagat
2024-01-05 14:05 ` Jan Beulich [this message]
2024-01-06 10:08 ` [PATCH, V4 " Indu Bhagat
2024-01-08 8:12 ` Jan Beulich
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