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From: Segher Boessenkool <segher@kernel.crashing.org>
To: "Kewen.Lin" <linkw@linux.ibm.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,
	David Edelsohn <dje.gcc@gmail.com>,
	Peter Bergner <bergner@linux.ibm.com>
Subject: Re: [PATCH] rs6000: Fix the condition with frame_pointer_needed_indeed [PR96072]
Date: Thu, 22 Sep 2022 17:13:02 -0500	[thread overview]
Message-ID: <20220922221302.GK25951@gate.crashing.org> (raw)
In-Reply-To: <be0f4ad9-98a1-c5bf-7509-9945f0365065@linux.ibm.com>

Hi!

On Thu, Sep 22, 2022 at 09:41:42AM +0800, Kewen.Lin wrote:
> 	* config/rs6000/rs6000-logue.cc (rs6000_emit_epilogue): Update the
> 	condition for adding REG_CFA_DEF_CFA reg note with
> 	frame_pointer_needed_indeed.

> --- a/gcc/config/rs6000/rs6000-logue.cc
> +++ b/gcc/config/rs6000/rs6000-logue.cc
> @@ -4956,7 +4956,7 @@ rs6000_emit_epilogue (enum epilogue_type epilogue_type)
>  	 a REG_CFA_DEF_CFA note, but that's OK;  A duplicate is
>  	 discarded by dwarf2cfi.cc/dwarf2out.cc, and in any case would
>  	 be harmless if emitted.  */
> -      if (frame_pointer_needed)
> +      if (frame_pointer_needed_indeed)
>  	{
>  	  insn = get_last_insn ();

I thought about adding an assert here, but the very next insn gives a
clear enough message anyway, zo it would be just noise :-)

> diff --git a/gcc/testsuite/gcc.target/powerpc/pr96072.c b/gcc/testsuite/gcc.target/powerpc/pr96072.c
> new file mode 100644
> index 00000000000..23d1cc74ffd
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/powerpc/pr96072.c
> @@ -0,0 +1,14 @@
> +/* { dg-options "-O1" } */
> +
> +/* Verify there is no ICE on 32 bit environment.  */

/* This used to ICE with the SYSV ABI (PR96072).  */

Please use -O2 if that works here.

Okay for trunk.  Thank you!


Segher

  reply	other threads:[~2022-09-22 22:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22  1:41 Kewen.Lin
2022-09-22 22:13 ` Segher Boessenkool [this message]
2022-09-26  5:41   ` Kewen.Lin

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