From: Richard Henderson <richard.henderson@linaro.org>
To: WANG Xuerui <git@xen0n.name>, qemu-devel@nongnu.org
Subject: Re: [PATCH v2 12/30] tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc/eqv ops
Date: Tue, 21 Sep 2021 21:35:27 -0700 [thread overview]
Message-ID: <90820738-c1f4-398c-308d-ec89be2d985f@linaro.org> (raw)
In-Reply-To: <20210921201915.601245-13-git@xen0n.name>
On 9/21/21 1:18 PM, WANG Xuerui wrote:
> + case INDEX_op_eqv_i32:
> + case INDEX_op_eqv_i64:
> + if (c2) {
> + /* guaranteed to fit due to constraint */
> + tcg_out_opc_xori(s, a0, a1, ~a2);
> + } else {
> + tcg_out_opc_nor(s, a0, a2, TCG_REG_ZERO);
> + tcg_out_opc_xor(s, a0, a1, a0);
> + }
> + break;
You don't actually have eqv (xnor), so don't pretend that you do. The middle-end will
expand this as xor + not on its own.
Otherwise,
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2021-09-22 4:36 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 20:18 [PATCH v2 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 01/30] elf: Add machine type value for LoongArch WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 02/30] MAINTAINERS: Add tcg/loongarch64 entry with myself as maintainer WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 03/30] tcg/loongarch64: Add the tcg-target.h file WANG Xuerui
2021-09-22 3:55 ` Richard Henderson
2021-09-22 4:33 ` WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 04/30] tcg/loongarch64: Add generated instruction opcodes and encoding helpers WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 05/30] tcg/loongarch64: Add register names, allocation order and input/output sets WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 06/30] tcg/loongarch64: Define the operand constraints WANG Xuerui
2021-09-22 3:59 ` Richard Henderson
2021-09-21 20:18 ` [PATCH v2 07/30] tcg/loongarch64: Implement necessary relocation operations WANG Xuerui
2021-09-22 4:02 ` Richard Henderson
2021-09-21 20:18 ` [PATCH v2 08/30] tcg/loongarch64: Implement the memory barrier op WANG Xuerui
2021-09-22 4:03 ` Richard Henderson
2021-09-21 20:18 ` [PATCH v2 09/30] tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi WANG Xuerui
2021-09-22 4:25 ` Richard Henderson
2021-09-22 15:16 ` WANG Xuerui
2021-09-22 15:17 ` Richard Henderson
2021-09-22 17:22 ` WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 10/30] tcg/loongarch64: Implement goto_ptr WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 11/30] tcg/loongarch64: Implement sign-/zero-extension ops WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 12/30] tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc/eqv ops WANG Xuerui
2021-09-22 4:35 ` Richard Henderson [this message]
2021-09-22 17:23 ` WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 13/30] tcg/loongarch64: Implement deposit/extract ops WANG Xuerui
2021-09-21 20:18 ` [PATCH v2 14/30] tcg/loongarch64: Implement bswap32_i32/bswap32_i64/bswap64_i64 WANG Xuerui
2021-09-22 14:54 ` Richard Henderson
2021-09-22 17:24 ` WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 15/30] tcg/loongarch64: Implement clz/ctz ops WANG Xuerui
2021-09-22 14:57 ` Richard Henderson
2021-09-21 20:19 ` [PATCH v2 16/30] tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops WANG Xuerui
2021-09-22 14:59 ` Richard Henderson
2021-09-21 20:19 ` [PATCH v2 17/30] tcg/loongarch64: Implement add/sub ops WANG Xuerui
2021-09-22 15:01 ` Richard Henderson
2021-09-21 20:19 ` [PATCH v2 18/30] tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 19/30] tcg/loongarch64: Implement br/brcond ops WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 20/30] tcg/loongarch64: Implement setcond ops WANG Xuerui
2021-09-22 15:13 ` Richard Henderson
2021-09-22 17:26 ` WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 21/30] tcg/loongarch64: Implement tcg_out_call WANG Xuerui
2021-09-22 15:16 ` Richard Henderson
2021-09-21 20:19 ` [PATCH v2 22/30] tcg/loongarch64: Implement simple load/store ops WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops WANG Xuerui
2021-09-22 16:29 ` Richard Henderson
2021-09-22 17:32 ` WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 24/30] tcg/loongarch64: Implement tcg_target_qemu_prologue WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 25/30] tcg/loongarch64: Implement exit_tb/goto_tb WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 26/30] tcg/loongarch64: Implement tcg_target_init WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 27/30] tcg/loongarch64: Register the JIT WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 28/30] linux-user: Add safe syscall handling for loongarch64 hosts WANG Xuerui
2021-09-22 16:39 ` Richard Henderson
2021-09-21 20:19 ` [PATCH v2 29/30] accel/tcg/user-exec: Implement CPU-specific signal handler " WANG Xuerui
2021-09-22 16:51 ` Richard Henderson
2021-09-22 17:35 ` WANG Xuerui
2021-09-21 20:19 ` [PATCH v2 30/30] configure, meson.build: Mark support " WANG Xuerui
2021-09-22 16:53 ` Richard Henderson
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