From: Andreas Schwab <schwab@linux-m68k.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: liuhongt <hongtao.liu@intel.com>,
richard.sandiford@arm.com, gcc-patches@gcc.gnu.org
Subject: Re: [PATCH 2/2] Get rid of all float-int special cases in validate_subreg.
Date: Fri, 03 Sep 2021 17:05:47 +0200 [thread overview]
Message-ID: <87a6ktog1g.fsf@igel.home> (raw)
In-Reply-To: <20210902175526.GK1583@gate.crashing.org> (Segher Boessenkool's message of "Thu, 2 Sep 2021 12:55:26 -0500")
On Sep 02 2021, Segher Boessenkool wrote:
> On Tue, Aug 31, 2021 at 07:17:49PM +0800, liuhongt via Gcc-patches wrote:
>> * emit-rtl.c (validate_subreg): Get rid of all float-int
>> special cases.
>
> This caused various regressions on powerpc. Please revert this until
> this can be done safely (the comment this patch deletes says why it can
> not be done yet).
This also breaks ada on riscv64.
s-fatgen.adb: In function 'System.Fat_Flt.Attr_Float.Scaling':
s-fatgen.adb:830:8: error: unable to find a register to spill
s-fatgen.adb:830:8: error: this is the insn:
(insn 215 321 216 26 (set (reg:SF 88 [ xx.26_39 ])
(mult:SF (reg:SF 190)
(subreg:SF (reg:DI 221 [164]) 0))) "s-fatgen.adb":821:25 17 {mulsf3}
(expr_list:REG_DEAD (reg:DI 221 [164])
(expr_list:REG_DEAD (reg:SF 190)
(nil))))
during RTL pass: reload
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
next prev parent reply other threads:[~2021-09-03 15:05 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210701054808.39000-1-hongtao.liu@intel.com>
2021-07-01 5:55 ` [PATCH 0/2] Initial support for AVX512FP16 Hongtao Liu
2021-07-01 20:46 ` Joseph Myers
2021-07-06 8:53 ` Hongtao Liu
[not found] ` <20210701054808.39000-3-hongtao.liu@intel.com>
2021-07-01 5:55 ` [PATCH 2/2] AVX512FP16: Add HFmode support in libgcc Hongtao Liu
[not found] ` <20210701054808.39000-2-hongtao.liu@intel.com>
2021-07-01 5:55 ` [PATCH 1/2] AVX512FP16: Initial support for _Float16 type and AVX512FP16 feature Hongtao Liu
2021-07-01 11:10 ` [PATCH 0/2] Initial support for AVX512FP16 Uros Bizjak
2021-07-01 12:39 ` H.J. Lu
2021-07-01 12:58 ` Richard Biener
2021-07-01 13:03 ` Jakub Jelinek
2021-07-06 8:51 ` Hongtao Liu
2021-07-06 10:14 ` Richard Biener
2021-07-06 12:11 ` H.J. Lu
2021-07-06 18:20 ` Joseph Myers
2021-07-06 18:18 ` Joseph Myers
2021-07-06 18:11 ` Joseph Myers
2021-07-07 1:24 ` Hongtao Liu
2021-07-14 7:50 ` Hongtao Liu
2021-07-14 15:32 ` [llvm-dev] " Craig Topper
2021-07-15 2:07 ` Wang, Pengfei
2021-07-15 6:34 ` Hongtao Liu
2021-07-15 6:57 ` Wang, Pengfei
2021-07-15 7:49 ` Hongtao Liu
2021-07-21 7:43 ` [PATCH V2 00/10] " liuhongt
2021-07-21 7:43 ` [PATCH 01/10] Update hf soft-fp from glibc liuhongt
2021-07-21 7:43 ` [PATCH 02/10] [i386] Enable _Float16 type for TARGET_SSE2 and above liuhongt
2021-07-21 10:35 ` Uros Bizjak
2021-07-22 5:21 ` Hongtao Liu
2021-07-22 11:56 ` Richard Biener
2021-07-28 21:56 ` Joseph Myers
2021-07-29 4:53 ` Hongtao Liu
2021-07-29 5:34 ` Hongtao Liu
2021-07-29 21:30 ` Joseph Myers
2021-08-02 5:23 ` Hongtao Liu
2021-08-02 6:31 ` [PATCH V3 0/6] Initial support for AVX512FP16 liuhongt
2021-08-02 6:31 ` [PATCH 1/6] Update hf soft-fp from glibc liuhongt
2021-08-02 6:31 ` [PATCH 2/6] [i386] Enable _Float16 type for TARGET_SSE2 and above liuhongt
2021-08-04 2:45 ` Hongtao Liu
2021-08-04 11:28 ` Richard Biener
2021-08-05 7:31 ` Hongtao Liu
2021-08-05 7:39 ` Hongtao Liu
2021-08-05 9:24 ` Richard Biener
2021-08-05 9:49 ` Hongtao Liu
2021-08-05 10:14 ` Richard Biener
2021-08-06 3:32 ` [PATCH] Make sure we're playing with integral modes before call extract_integral_bit_field liuhongt
2021-08-06 3:44 ` Andrew Pinski
2021-08-06 4:59 ` Hongtao Liu
2021-08-06 5:52 ` Hongtao Liu
2021-08-06 6:59 ` Richard Biener
2021-08-06 6:57 ` Richard Biener
2021-08-06 9:05 ` Richard Sandiford
2021-08-06 11:27 ` Richard Biener
2021-08-09 8:34 ` Hongtao Liu
2021-08-17 1:52 ` Hongtao Liu
2021-08-24 9:40 ` Hongtao Liu
2021-08-24 9:44 ` Hongtao Liu
2021-08-24 11:38 ` Richard Biener
2021-08-26 1:17 ` Hongtao Liu
2021-08-25 23:16 ` Jeff Law
2021-08-26 2:05 ` Hongtao Liu
2021-08-26 7:11 ` Richard Biener
2021-08-26 9:06 ` Richard Sandiford
2021-08-26 10:14 ` Richard Biener
2021-08-26 10:50 ` Richard Sandiford
2021-08-26 11:09 ` Richard Biener
2021-08-27 4:56 ` Hongtao Liu
2021-08-30 19:09 ` Joseph Myers
2021-08-30 21:15 ` Jeff Law
2021-08-31 6:10 ` Richard Biener
2021-08-31 6:30 ` Hongtao Liu
2021-08-31 6:48 ` Hongtao Liu
2021-08-31 11:16 ` Richard Biener
2021-08-31 11:17 ` [PATCH 0/2] Get rid of all float-int special cases in validate_subreg liuhongt
2021-08-31 11:17 ` [PATCH 1/2] Revert "Make sure we're playing with integral modes before call extract_integral_bit_field." liuhongt
2021-08-31 11:17 ` [PATCH 2/2] Get rid of all float-int special cases in validate_subreg liuhongt
2021-08-31 11:57 ` Richard Biener
2021-09-02 17:55 ` Segher Boessenkool
2021-09-03 15:05 ` Andreas Schwab [this message]
2021-09-07 23:19 ` Segher Boessenkool
2021-09-08 0:55 ` Hongtao Liu
2021-09-03 12:42 ` [PATCH 2/6] [i386] Enable _Float16 type for TARGET_SSE2 and above Jakub Jelinek
2021-09-06 2:05 ` Hongtao Liu
2021-09-06 12:13 ` Jakub Jelinek
2021-09-07 1:52 ` Hongtao Liu
2021-09-07 7:17 ` Jakub Jelinek
2021-09-07 10:08 ` Hongtao Liu
2021-09-07 10:10 ` Jakub Jelinek
2021-08-02 6:31 ` [PATCH 3/6] [i386] libgcc: Enable hfmode soft-sf/df/xf/tf extensions and truncations liuhongt
2021-08-02 6:31 ` [PATCH 4/6] Support -fexcess-precision=16 which will enable FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16 when backend supports _Float16 liuhongt
2021-08-02 19:34 ` Joseph Myers
2021-08-03 2:44 ` Hongtao Liu
2021-08-06 6:06 ` Hongtao Liu
2021-08-17 1:53 ` Hongtao Liu
2021-08-24 9:39 ` Hongtao Liu
2021-09-02 6:06 ` Hongtao Liu
2021-08-02 6:39 ` [PATCH 6/6] AVX512FP16: Support vector init/broadcast/set/extract for FP16 liuhongt
2021-08-02 6:44 ` [PATCH 5/6] AVX512FP16: Initial support for AVX512FP16 feature and scalar _Float16 instructions liuhongt
2021-08-04 2:40 ` Hongtao Liu
2021-08-04 9:55 ` Uros Bizjak
2021-09-02 6:06 ` [PATCH V3 0/6] Initial support for AVX512FP16 Hongtao Liu
2021-09-02 11:30 ` Iain Sandoe
2021-09-02 15:18 ` Hongtao Liu
2021-09-02 16:44 ` Iain Sandoe
2021-09-02 20:03 ` Joseph Myers
2021-09-03 7:51 ` Iain Sandoe
2021-09-03 15:33 ` Iain Sandoe
2021-09-21 20:11 ` Joseph Myers
2021-09-21 20:25 ` Iain Sandoe
2021-09-22 7:08 ` Iain Sandoe
2021-09-22 19:50 ` Joseph Myers
2021-09-02 15:30 ` H.J. Lu
2021-09-02 15:50 ` Hongtao Liu
2021-09-02 19:45 ` Joseph Myers
2021-07-21 7:43 ` [PATCH 03/10] [i386] libgcc: Enable hfmode soft-sf/df/xf/tf extensions and truncations liuhongt
2021-07-21 10:51 ` Uros Bizjak
2021-07-22 12:14 ` Richard Biener
2021-07-27 5:32 ` Hongtao Liu
2021-07-29 20:57 ` Joseph Myers
2021-08-02 5:10 ` Hongtao Liu
2021-07-21 7:43 ` [PATCH 04/10] AVX512FP16: Initial support for AVX512FP16 feature and scalar _Float16 instructions liuhongt
2021-07-22 8:49 ` Uros Bizjak
2021-07-27 7:31 ` Hongtao Liu
2021-07-21 7:43 ` [PATCH 05/10] AVX512FP16: Support vector init/broadcast/set/extract for FP16 liuhongt
2021-07-22 5:24 ` Hongtao Liu
2021-07-21 7:43 ` [PATCH 06/10] AVX512FP16: Add testcase for vector init and broadcast intrinsics liuhongt
2021-07-21 7:43 ` [PATCH 07/10] AVX512FP16: Add tests for vector passing in variable arguments liuhongt
2021-07-21 7:43 ` [PATCH 08/10] AVX512FP16: Add ABI tests for xmm liuhongt
2021-07-21 7:43 ` [PATCH 09/10] AVX512FP16: Add ABI test for ymm liuhongt
2021-07-21 7:43 ` [PATCH 10/10] AVX512FP16: Add abi test for zmm liuhongt
2021-09-08 2:54 ` [PATCH V2 00/10] Initial support for AVX512FP16 Hongtao Liu
2021-09-08 3:02 ` Hongtao Liu
2021-07-01 12:58 ` [PATCH 0/2] " Uros Bizjak
2021-07-01 21:40 ` Joseph Myers
2021-07-02 6:30 ` Hongtao Liu
2021-07-02 8:03 ` Uros Bizjak
2021-07-02 8:19 ` Richard Biener
2021-07-03 14:44 ` Hongtao Liu
2021-07-05 1:25 ` Hongtao Liu
2021-07-05 11:02 ` Richard Biener
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