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c=relaxed/simple; bh=ocuUAdr9L/48db89pK5MbMoAi89/MRJiSUEnFOkiIeo=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=Tdi/NO9Zgq/3A4iX+bTlsisLyJPqQbXLQWrP14h1C8tR7OLucvRvsGnBYCMkZXq9QXoSHTob9TaWYyZwEe4/NQ31ynLAw1WkUDaGtntC208EoypalXf7VCsDMZgagMaWwU+xWxBONRVLP4FjJc5/EkFVQoyqccCyqTD4Jl4LHXs= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rrXiI-00018A-52 for gcc-patches@gcc.gnu.org; Tue, 02 Apr 2024 02:33:50 -0400 Received: from loongson.cn (unknown [10.10.130.252]) by gateway (Coremail) with SMTP id _____8BxVfG9pgtmJDoiAA--.13696S3; Tue, 02 Apr 2024 14:33:33 +0800 (CST) Received: from slurm-master.loongson.cn (unknown [10.10.130.252]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Bx8OS8pgtmn49xAA--.23739S4; Tue, 02 Apr 2024 14:33:32 +0800 (CST) From: Jiahao Xu To: gcc-patches@gcc.gnu.org Cc: xry111@xry111.site, i@xen0n.name, chenglulu@loongson.cn, xuchenghua@loongson.cn, Jiahao Xu Subject: [PATCH] LoongArch: Remove unused code Date: Tue, 2 Apr 2024 14:33:30 +0800 Message-Id: <20240402063330.65347-1-xujiahao@loongson.cn> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Bx8OS8pgtmn49xAA--.23739S4 X-CM-SenderInfo: 50xmxthkdrqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW3KFWfXF48Zw18ArW5Gw1UXFc_yoWkWFWDpr Zrua4xAr48JFnag3Wktay5Xws0kr17Ga12vF9xJ397Ary3Ww1qqa40kr9aqFyYqw4Sg347 Xa18Xa15Wa15KwcCm3ZEXasCq-sJn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r106r15M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_JFI_Gr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv 67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07j8yCJUUUUU= Received-SPF: pass client-ip=114.242.206.163; envelope-from=xujiahao@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Status: No, score=-13.5 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_SHORT, SPF_FAIL, SPF_HELO_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org For machines that satisfy ISA_HAS_LSX && !TARGET_64BIT, we will not support them now and in the future, so this patch removes these unused code. gcc/ChangeLog: * config/loongarch/lasx.md: Remove unused code. * config/loongarch/loongarch-protos.h (loongarch_split_lsx_copy_d): Remove. (loongarch_split_lsx_insert_d): Ditto. (loongarch_split_lsx_fill_d): Ditto. * config/loongarch/loongarch.cc (loongarch_split_lsx_copy_d): Ditto. (loongarch_split_lsx_insert_d): Ditto. (loongarch_split_lsx_fill_d): Ditto. * config/loongarch/lsx.md (lsx_vpickve2gr_du): Remove splitter. (lsx_vpickve2gr_): Ditto. (abs2): Remove expander. (vabs2): Rename to abs2. gcc/testsuite/ChangeLog: * gcc.target/loongarch/vector/lsx/lsx-abs.c: New test. --- gcc/config/loongarch/lasx.md | 12 +-- gcc/config/loongarch/loongarch-protos.h | 3 - gcc/config/loongarch/loongarch.cc | 76 ---------------- gcc/config/loongarch/lsx.md | 89 ++----------------- .../gcc.target/loongarch/vector/lsx/lsx-abs.c | 26 ++++++ 5 files changed, 35 insertions(+), 171 deletions(-) create mode 100644 gcc/testsuite/gcc.target/loongarch/vector/lsx/lsx-abs.c diff --git a/gcc/config/loongarch/lasx.md b/gcc/config/loongarch/lasx.md index 2fa5e46c8e8..7bd61f8ed5b 100644 --- a/gcc/config/loongarch/lasx.md +++ b/gcc/config/loongarch/lasx.md @@ -572,12 +572,7 @@ (define_insn "lasx_xvinsgr2vr_" (match_operand 3 "const__operand" "")))] "ISA_HAS_LASX" { -#if 0 - if (!TARGET_64BIT && (mode == V4DImode || mode == V4DFmode)) - return "#"; - else -#endif - return "xvinsgr2vr.\t%u0,%z1,%y3"; + return "xvinsgr2vr.\t%u0,%z1,%y3"; } [(set_attr "type" "simd_insert") (set_attr "mode" "")]) @@ -1446,10 +1441,7 @@ (define_insn "lasx_xvreplgr2vr_" if (which_alternative == 1) return "xvldi.b\t%u0,0" ; - if (!TARGET_64BIT && (mode == V2DImode || mode == V2DFmode)) - return "#"; - else - return "xvreplgr2vr.\t%u0,%z1"; + return "xvreplgr2vr.\t%u0,%z1"; } [(set_attr "type" "simd_fill") (set_attr "mode" "") diff --git a/gcc/config/loongarch/loongarch-protos.h b/gcc/config/loongarch/loongarch-protos.h index e3ed2b912a5..e238d795a73 100644 --- a/gcc/config/loongarch/loongarch-protos.h +++ b/gcc/config/loongarch/loongarch-protos.h @@ -89,9 +89,6 @@ extern void loongarch_split_128bit_move (rtx, rtx); extern bool loongarch_split_128bit_move_p (rtx, rtx); extern void loongarch_split_256bit_move (rtx, rtx); extern bool loongarch_split_256bit_move_p (rtx, rtx); -extern void loongarch_split_lsx_copy_d (rtx, rtx, rtx, rtx (*)(rtx, rtx, rtx)); -extern void loongarch_split_lsx_insert_d (rtx, rtx, rtx, rtx); -extern void loongarch_split_lsx_fill_d (rtx, rtx); extern const char *loongarch_output_move (rtx, rtx); #ifdef RTX_CODE extern void loongarch_expand_scc (rtx *); diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc index a69a203fbe6..8438cc64b0d 100644 --- a/gcc/config/loongarch/loongarch.cc +++ b/gcc/config/loongarch/loongarch.cc @@ -4756,82 +4756,6 @@ loongarch_split_256bit_move (rtx dest, rtx src) } } - -/* Split a COPY_S.D with operands DEST, SRC and INDEX. GEN is a function - used to generate subregs. */ - -void -loongarch_split_lsx_copy_d (rtx dest, rtx src, rtx index, - rtx (*gen_fn)(rtx, rtx, rtx)) -{ - gcc_assert ((GET_MODE (src) == V2DImode && GET_MODE (dest) == DImode) - || (GET_MODE (src) == V2DFmode && GET_MODE (dest) == DFmode)); - - /* Note that low is always from the lower index, and high is always - from the higher index. */ - rtx low = loongarch_subword (dest, false); - rtx high = loongarch_subword (dest, true); - rtx new_src = simplify_gen_subreg (V4SImode, src, GET_MODE (src), 0); - - emit_insn (gen_fn (low, new_src, GEN_INT (INTVAL (index) * 2))); - emit_insn (gen_fn (high, new_src, GEN_INT (INTVAL (index) * 2 + 1))); -} - -/* Split a INSERT.D with operand DEST, SRC1.INDEX and SRC2. */ - -void -loongarch_split_lsx_insert_d (rtx dest, rtx src1, rtx index, rtx src2) -{ - int i; - gcc_assert (GET_MODE (dest) == GET_MODE (src1)); - gcc_assert ((GET_MODE (dest) == V2DImode - && (GET_MODE (src2) == DImode || src2 == const0_rtx)) - || (GET_MODE (dest) == V2DFmode && GET_MODE (src2) == DFmode)); - - /* Note that low is always from the lower index, and high is always - from the higher index. */ - rtx low = loongarch_subword (src2, false); - rtx high = loongarch_subword (src2, true); - rtx new_dest = simplify_gen_subreg (V4SImode, dest, GET_MODE (dest), 0); - rtx new_src1 = simplify_gen_subreg (V4SImode, src1, GET_MODE (src1), 0); - i = exact_log2 (INTVAL (index)); - gcc_assert (i != -1); - - emit_insn (gen_lsx_vinsgr2vr_w (new_dest, low, new_src1, - GEN_INT (1 << (i * 2)))); - emit_insn (gen_lsx_vinsgr2vr_w (new_dest, high, new_dest, - GEN_INT (1 << (i * 2 + 1)))); -} - -/* Split FILL.D. */ - -void -loongarch_split_lsx_fill_d (rtx dest, rtx src) -{ - gcc_assert ((GET_MODE (dest) == V2DImode - && (GET_MODE (src) == DImode || src == const0_rtx)) - || (GET_MODE (dest) == V2DFmode && GET_MODE (src) == DFmode)); - - /* Note that low is always from the lower index, and high is always - from the higher index. */ - rtx low, high; - if (src == const0_rtx) - { - low = src; - high = src; - } - else - { - low = loongarch_subword (src, false); - high = loongarch_subword (src, true); - } - rtx new_dest = simplify_gen_subreg (V4SImode, dest, GET_MODE (dest), 0); - emit_insn (gen_lsx_vreplgr2vr_w (new_dest, low)); - emit_insn (gen_lsx_vinsgr2vr_w (new_dest, high, new_dest, GEN_INT (1 << 1))); - emit_insn (gen_lsx_vinsgr2vr_w (new_dest, high, new_dest, GEN_INT (1 << 3))); -} - - /* Return the appropriate instructions to move SRC into DEST. Assume that SRC is operand 1 and DEST is operand 0. */ diff --git a/gcc/config/loongarch/lsx.md b/gcc/config/loongarch/lsx.md index 87d3e7c5d9f..454cda47876 100644 --- a/gcc/config/loongarch/lsx.md +++ b/gcc/config/loongarch/lsx.md @@ -582,28 +582,11 @@ (define_insn "lsx_vinsgr2vr_" (match_operand 3 "const__operand" "")))] "ISA_HAS_LSX" { - if (!TARGET_64BIT && (mode == V2DImode || mode == V2DFmode)) - return "#"; - else - return "vinsgr2vr.\t%w0,%z1,%y3"; + return "vinsgr2vr.\t%w0,%z1,%y3"; } [(set_attr "type" "simd_insert") (set_attr "mode" "")]) -(define_split - [(set (match_operand:LSX_D 0 "register_operand") - (vec_merge:LSX_D - (vec_duplicate:LSX_D - (match_operand: 1 "_operand")) - (match_operand:LSX_D 2 "register_operand") - (match_operand 3 "const__operand")))] - "reload_completed && ISA_HAS_LSX && !TARGET_64BIT" - [(const_int 0)] -{ - loongarch_split_lsx_insert_d (operands[0], operands[2], operands[3], operands[1]); - DONE; -}) - (define_insn "lsx_vextrins__internal" [(set (match_operand:LSX 0 "register_operand" "=f") (vec_merge:LSX @@ -653,70 +636,26 @@ (define_insn "lsx_vpickve2gr_" [(set_attr "type" "simd_copy") (set_attr "mode" "")]) -(define_insn_and_split "lsx_vpickve2gr_du" +(define_insn "lsx_vpickve2gr_du" [(set (match_operand:DI 0 "register_operand" "=r") (vec_select:DI (match_operand:V2DI 1 "register_operand" "f") (parallel [(match_operand 2 "const_0_or_1_operand" "")])))] "ISA_HAS_LSX" -{ - if (TARGET_64BIT) - return "vpickve2gr.du\t%0,%w1,%2"; - else - return "#"; -} - "reload_completed && ISA_HAS_LSX && !TARGET_64BIT" - [(const_int 0)] -{ - loongarch_split_lsx_copy_d (operands[0], operands[1], operands[2], - gen_lsx_vpickve2gr_wu); - DONE; -} + "vpickve2gr.du\t%0,%w1,%2" [(set_attr "type" "simd_copy") (set_attr "mode" "V2DI")]) -(define_insn_and_split "lsx_vpickve2gr_" +(define_insn "lsx_vpickve2gr_" [(set (match_operand: 0 "register_operand" "=r") (vec_select: (match_operand:LSX_D 1 "register_operand" "f") (parallel [(match_operand 2 "const__operand" "")])))] "ISA_HAS_LSX" -{ - if (TARGET_64BIT) - return "vpickve2gr.\t%0,%w1,%2"; - else - return "#"; -} - "reload_completed && ISA_HAS_LSX && !TARGET_64BIT" - [(const_int 0)] -{ - loongarch_split_lsx_copy_d (operands[0], operands[1], operands[2], - gen_lsx_vpickve2gr_w); - DONE; -} + "vpickve2gr.\t%0,%w1,%2" [(set_attr "type" "simd_copy") (set_attr "mode" "")]) - -(define_expand "abs2" - [(match_operand:ILSX 0 "register_operand" "=f") - (abs:ILSX (match_operand:ILSX 1 "register_operand" "f"))] - "ISA_HAS_LSX" -{ - if (ISA_HAS_LSX) - { - emit_insn (gen_vabs2 (operands[0], operands[1])); - DONE; - } - else - { - rtx reg = gen_reg_rtx (mode); - emit_move_insn (reg, CONST0_RTX (mode)); - emit_insn (gen_lsx_vadda_ (operands[0], operands[1], reg)); - DONE; - } -}) - (define_expand "neg2" [(set (match_operand:ILSX 0 "register_operand") (neg:ILSX (match_operand:ILSX 1 "register_operand")))] @@ -1369,25 +1308,11 @@ (define_insn "lsx_vreplgr2vr_" if (which_alternative == 1) return "vldi.\t%w0,0"; - if (!TARGET_64BIT && (mode == V2DImode || mode == V2DFmode)) - return "#"; - else - return "vreplgr2vr.\t%w0,%z1"; + return "vreplgr2vr.\t%w0,%z1"; } [(set_attr "type" "simd_fill") (set_attr "mode" "")]) -(define_split - [(set (match_operand:LSX_D 0 "register_operand") - (vec_duplicate:LSX_D - (match_operand: 1 "register_operand")))] - "reload_completed && ISA_HAS_LSX && !TARGET_64BIT" - [(const_int 0)] -{ - loongarch_split_lsx_fill_d (operands[0], operands[1]); - DONE; -}) - (define_insn "logb2" [(set (match_operand:FLSX 0 "register_operand" "=f") (unspec:FLSX [(match_operand:FLSX 1 "register_operand" "f")] @@ -2428,7 +2353,7 @@ (define_insn "vandn3" [(set_attr "type" "simd_logic") (set_attr "mode" "")]) -(define_insn "vabs2" +(define_insn "abs2" [(set (match_operand:ILSX 0 "register_operand" "=f") (abs:ILSX (match_operand:ILSX 1 "register_operand" "f")))] "ISA_HAS_LSX" diff --git a/gcc/testsuite/gcc.target/loongarch/vector/lsx/lsx-abs.c b/gcc/testsuite/gcc.target/loongarch/vector/lsx/lsx-abs.c new file mode 100644 index 00000000000..cf971badb51 --- /dev/null +++ b/gcc/testsuite/gcc.target/loongarch/vector/lsx/lsx-abs.c @@ -0,0 +1,26 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -mlsx" } */ +/* { dg-final { scan-assembler-times "vsigncov.w" 1 } } */ +/* { dg-final { scan-assembler-times "vsigncov.d" 1 } } */ + +int a[4], b[4]; + +extern int abs (int); + +void +foo1 (void) +{ + for (int i = 0; i < 4; i++) + a[i] = abs (b[i]); +} + +long la[2], lb[2]; + +extern long labs (long); + +void +foo2 (void) +{ + for (int i = 0; i < 2; i++) + la[i] = labs (lb[i]); +}