From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>, qemu-devel@nongnu.org
Cc: pbonzini@redhat.com
Subject: Re: [PATCH v2 20/35] tcg/sparc64: Hoist read of tcg_cond_to_rcond
Date: Thu, 9 Nov 2023 09:35:04 +0100 [thread overview]
Message-ID: <e3c33151-f0f7-4929-b93c-960428f55894@linaro.org> (raw)
In-Reply-To: <88ca96c2-36d0-4183-b17a-c472b167d74a@linaro.org>
On 8/11/23 21:57, Richard Henderson wrote:
> On 11/6/23 13:02, Philippe Mathieu-Daudé wrote:
>> On 28/10/23 21:45, Richard Henderson wrote:
>>> Use a non-zero value here (an illegal encoding) as a better
>>> condition than is_unsigned_cond for when MOVR/BPR is usable.
>>>
>>> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
>>> ---
>>> tcg/sparc64/tcg-target.c.inc | 25 ++++++++++++++-----------
>>> 1 file changed, 14 insertions(+), 11 deletions(-)
>>>
>>> diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
>>> index ac86b92b75..e16b25e309 100644
>>> --- a/tcg/sparc64/tcg-target.c.inc
>>> +++ b/tcg/sparc64/tcg-target.c.inc
>>> @@ -620,7 +620,7 @@ static const uint8_t tcg_cond_to_bcond[] = {
>>> [TCG_COND_GTU] = COND_GU,
>>> };
>>> -static const uint8_t tcg_cond_to_rcond[] = {
>>> +static const uint8_t tcg_cond_to_rcond[16] = {
>>
>>
>>> -static void tcg_out_movr(TCGContext *s, TCGCond cond, TCGReg ret,
>>> TCGReg c1,
>>> +static void tcg_out_movr(TCGContext *s, int rcond, TCGReg ret,
>>> TCGReg c1,
>>
>> Isn't rcond unsigned?
>
> Yes, though it is in [0-7], so it doesn't matter.
Maybe using 'uint8_t' would be clearer. Just suggesting, not a blocker.
next prev parent reply other threads:[~2023-11-09 8:35 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-28 19:44 [PATCH v2 00/35] tcg: Introduce TCG_COND_TST{EQ,NE} Richard Henderson
2023-10-28 19:44 ` [PATCH v2 01/35] " Richard Henderson
2023-11-06 15:26 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 02/35] tcg/optimize: Split out arg_is_const_val Richard Henderson
2023-11-06 15:28 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 03/35] tcg/optimize: Split out do_constant_folding_cond1 Richard Henderson
2023-11-06 15:33 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 04/35] tcg/optimize: Do swap_commutative2 in do_constant_folding_cond2 Richard Henderson
2023-11-06 21:27 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 05/35] tcg/optimize: Split out arg_new_constant Richard Henderson
2023-11-06 15:34 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 06/35] tcg/optimize: Handle TCG_COND_TST{EQ,NE} Richard Henderson
2023-11-06 21:20 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 07/35] tcg: Add TCGConst argument to tcg_target_const_match Richard Henderson
2023-11-06 18:47 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 08/35] tcg/aarch64: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-10-28 19:44 ` [PATCH v2 09/35] tcg/aarch64: Generate TBZ, TBNZ Richard Henderson
2023-10-28 19:44 ` [PATCH v2 10/35] tcg/aarch64: Generate CBNZ for TSTNE of UINT32_MAX Richard Henderson
2023-10-28 19:44 ` [PATCH v2 11/35] tcg/arm: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-11-08 14:52 ` [PATCH v2 11/35 1/2] tcg/arm: Factor tcg_out_cmp() out Philippe Mathieu-Daudé
2023-11-08 14:52 ` [PATCH v2 11/35 2/2] tcg/arm: Support TCG_COND_TST{EQ,NE} Philippe Mathieu-Daudé
2023-11-08 17:59 ` Philippe Mathieu-Daudé
2023-10-28 19:44 ` [PATCH v2 12/35] tcg/i386: Pass x86 condition codes to tcg_out_cmov Richard Henderson
2023-11-06 20:55 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 13/35] tcg/i386: Move tcg_cond_to_jcc[] into tcg_out_cmp Richard Henderson
2023-11-06 19:46 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 14/35] tcg/i386: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-11-08 18:16 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 15/35] tcg/i386: Improve TSTNE/TESTEQ vs powers of two Richard Henderson
2023-10-28 19:45 ` [PATCH v2 16/35] tcg/loongarch64: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-11-17 7:48 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 17/35] tcg/mips: " Richard Henderson
2023-11-17 7:46 ` Philippe Mathieu-Daudé
2023-11-17 16:36 ` Richard Henderson
2023-12-13 14:06 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 18/35] tcg/riscv: " Richard Henderson
2023-11-06 20:59 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 19/35] tcg/sparc64: Implement tcg_out_extrl_i64_i32 Richard Henderson
2023-11-06 15:05 ` Philippe Mathieu-Daudé
2023-11-06 18:07 ` Richard Henderson
2023-10-28 19:45 ` [PATCH v2 20/35] tcg/sparc64: Hoist read of tcg_cond_to_rcond Richard Henderson
2023-11-06 21:02 ` Philippe Mathieu-Daudé
2023-11-08 20:57 ` Richard Henderson
2023-11-09 8:35 ` Philippe Mathieu-Daudé [this message]
2023-10-28 19:45 ` [PATCH v2 21/35] tcg/sparc64: Pass TCGCond to tcg_out_cmp Richard Henderson
2023-11-09 11:29 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 22/35] tcg/sparc64: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-11-06 21:07 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 23/35] tcg/ppc: Sink tcg_to_bc usage into tcg_out_bc Richard Henderson
2023-11-06 18:54 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 24/35] tcg/ppc: Use cr0 in tcg_to_bc and tcg_to_isel Richard Henderson
2023-10-28 19:45 ` [PATCH v2 25/35] tcg/ppc: Tidy up tcg_target_const_match Richard Henderson
2023-11-06 21:08 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 26/35] tcg/ppc: Add TCG_CT_CONST_CMP Richard Henderson
2023-10-28 19:45 ` [PATCH v2 27/35] tcg/ppc: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-11-08 20:40 ` Philippe Mathieu-Daudé
2023-11-08 21:27 ` Richard Henderson
2023-11-09 8:42 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 28/35] tcg/s390x: Split constraint A into J+U Richard Henderson
2023-10-28 19:45 ` [PATCH v2 29/35] tcg/s390x: Add TCG_CT_CONST_CMP Richard Henderson
2023-10-28 19:45 ` [PATCH v2 30/35] tcg/s390x: Support TCG_COND_TST{EQ,NE} Richard Henderson
2023-10-28 19:45 ` [PATCH v2 31/35] tcg/tci: " Richard Henderson
2023-11-06 18:48 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 32/35] target/alpha: Use TCG_COND_TST{EQ,NE} for BLB{C,S} Richard Henderson
2023-11-08 20:52 ` [PATCH v2 32/35 1/2] target/alpha: Pass immediate value to gen_bcond_internal() Philippe Mathieu-Daudé
2023-11-08 20:55 ` Philippe Mathieu-Daudé
2023-11-08 20:52 ` [PATCH v2 32/35 2/2] target/alpha: Use TCG_COND_TST{EQ, NE} for BLB{C, S} Philippe Mathieu-Daudé
2023-11-08 20:56 ` [PATCH v2 32/35] target/alpha: Use TCG_COND_TST{EQ,NE} for BLB{C,S} Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 33/35] target/alpha: Use TCG_COND_TST{EQ, NE} for CMOVLB{C, S} Richard Henderson
2023-11-08 20:54 ` [PATCH v2 33/35] target/alpha: Use TCG_COND_TST{EQ,NE} for CMOVLB{C,S} Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 34/35] target/alpha: Use TCG_COND_TSTNE for gen_fold_mzero Richard Henderson
2023-11-08 21:03 ` Philippe Mathieu-Daudé
2023-10-28 19:45 ` [PATCH v2 35/35] target/m68k: Use TCG_COND_TST{EQ, NE} in gen_fcc_cond Richard Henderson
2023-11-02 22:17 ` [PATCH v2 00/35] tcg: Introduce TCG_COND_TST{EQ,NE} Richard Henderson
2024-01-06 17:43 ` Paolo Bonzini
2024-01-08 21:45 ` Richard Henderson
2024-01-08 22:55 ` Paolo Bonzini
2024-01-09 8:36 ` Richard Henderson
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