From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1005) id 018F73858D37; Fri, 28 Apr 2023 18:58:41 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 018F73858D37 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1682708321; bh=37F86AK3WQ2uqk/PTeC8aET57VPspuwYTMaKJvNF6AQ=; h=From:To:Subject:Date:From; b=rd7+RHKssV1/0Pmo272oeAY1NgbMn7rJyCV7QJEEzXvMF4HJp4dMBmyUnqfD85RPW AnQkIkDBgbTP5lXpVi+ZSnGDdW2P/c88h7d/zQIf9VEhNZMmhgy/8pjp8wXuUb4Qeo NN+Mg/fZGNyYvIzeU3+KbFvaq1NcQuLX+3KFGBeY= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Michael Meissner To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/meissner/heads/work119)] Allow constant element vec_extract to be converted to floating point X-Act-Checkin: gcc X-Git-Author: Michael Meissner X-Git-Refname: refs/users/meissner/heads/work119 X-Git-Oldrev: 8a92aa10770cfc06fbf36e32f163df9967803030 X-Git-Newrev: a89f22ecfa457ef044e79c41d0fd4fcabb09846e Message-Id: <20230428185841.018F73858D37@sourceware.org> Date: Fri, 28 Apr 2023 18:58:41 +0000 (GMT) List-Id: https://gcc.gnu.org/g:a89f22ecfa457ef044e79c41d0fd4fcabb09846e commit a89f22ecfa457ef044e79c41d0fd4fcabb09846e Author: Michael Meissner Date: Fri Apr 28 14:58:22 2023 -0400 Allow constant element vec_extract to be converted to floating point This patch allows vec_extract of the following types to be converted to floating point by loading the value directly to the vector register, and then doing the conversion instead of loading the value to a GPR and then doing a direct move: vector int vector unsigned int vector unsigned short vector unsigned char 2023-04-28 Michael Meissner gcc/ * config/rs6000/rs6000.md (fp_int_extend): New code attribute. * config/rs6000/vsx.md (vsx_extract_v4si_load_to_): New * insn. * vsx_extract__load_to_uns: New insn. gcc/testsuite/ * gcc.target/powerpc/vec-extract-mem-char-2.c: New file. * gcc.target/powerpc/vec-extract-mem-int-4.c: New file. * gcc.target/powerpc/vec-extract-mem-int_5.c: New file. * gcc.target/powerpc/vec-extract-mem-short-4.c: New file. Diff: --- gcc/config/rs6000/rs6000.md | 3 ++ gcc/config/rs6000/vsx.md | 56 ++++++++++++++++++++++ .../gcc.target/powerpc/vec-extract-mem-char-2.c | 41 ++++++++++++++++ .../gcc.target/powerpc/vec-extract-mem-int-4.c | 40 ++++++++++++++++ .../gcc.target/powerpc/vec-extract-mem-int-5.c | 40 ++++++++++++++++ .../gcc.target/powerpc/vec-extract-mem-short-4.c | 41 ++++++++++++++++ 6 files changed, 221 insertions(+) diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 7d6c94aee5b..b1e3750f528 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -664,6 +664,9 @@ (float "") (unsigned_float "uns")]) +(define_code_attr fp_int_extend [(float "sign_extend") + (unsigned_float "zero_extend")]) + ; Various instructions that come in SI and DI forms. ; A generic w/d attribute, for things like cmpw/cmpd. (define_mode_attr wd [(QI "b") diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md index e33675781ce..bf07d62606a 100644 --- a/gcc/config/rs6000/vsx.md +++ b/gcc/config/rs6000/vsx.md @@ -4043,6 +4043,62 @@ (set_attr "length" "8") (set_attr "isa" "*,p9v")]) +;; Fold extracting a V4SI element with a constant element with either sign or +;; zero extension to SFmode or DFmode into LFIWAX/LFIWZX and FCFID. +(define_insn_and_split "*vsx_extract_v4si_load_to_" + [(set (match_operand:SFDF 0 "register_operand" "=wa") + (any_float:SFDF + (vec_select:SI + (match_operand:V4SI 1 "non_altivec_memory_operand" "Q") + (parallel [(match_operand:QI 2 "const_0_to_3_operand" "n")])))) + (clobber (match_scratch:DI 3 "=&b")) + (clobber (match_scratch:DI 4 "=wa"))] + "VECTOR_MEM_VSX_P (V4SImode) && TARGET_DIRECT_MOVE_64BIT" + "#" + "&& 1" + [(set (match_dup 4) + (:DI (match_dup 5))) + (set (match_dup 0) + (float:SFDF (match_dup 4)))] +{ + if (GET_CODE (operands[4]) == SCRATCH) + operands[4] = gen_reg_rtx (DImode); + + operands[5] = rs6000_adjust_vec_address (operands[0], operands[1], + operands[2], operands[3], + SImode); +} + [(set_attr "type" "fpload") + (set_attr "length" "12")]) + +;; Fold extracting a V8HI/V16QI element with a constant element with zero +;; extension to SFmode or DFmode into LXSIBZX/LXSIHZX and FCFID +(define_insn_and_split "*vsx_extract__load_to_uns" + [(set (match_operand:SFDF 0 "register_operand" "=wa,wa") + (unsigned_float:SFDF + (vec_select: + (match_operand:VSX_EXTRACT_I2 1 "memory_operand" "Z,Q") + (parallel [(match_operand:QI 2 "const_int_operand" "O,n")])))) + (clobber (match_scratch:DI 3 "=X,&b")) + (clobber (match_scratch:DI 4 "=v,v"))] + "VECTOR_MEM_VSX_P (mode) && TARGET_P9_VECTOR" + "#" + "&& 1" + [(set (match_dup 4) + (zero_extend:DI (match_dup 5))) + (set (match_dup 0) + (float:SFDF (match_dup 4)))] +{ + if (GET_CODE (operands[4]) == SCRATCH) + operands[4] = gen_reg_rtx (DImode); + + operands[5] = rs6000_adjust_vec_address (operands[0], operands[1], + operands[2], operands[3], + mode); +} + [(set_attr "type" "fpload") + (set_attr "length" "8,12")]) + ;; Fold extracting a V8HI element with a constant element with sign extension ;; to either DImode or SImode. (define_insn_and_split "*vsx_extract_v8hi_load_to_s" diff --git a/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-char-2.c b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-char-2.c new file mode 100644 index 00000000000..a537dfe2350 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-char-2.c @@ -0,0 +1,41 @@ +/* { dg-do compile { target lp64 } } */ +/* { dg-require-effective-target powerpc_p9vector_ok } */ +/* { dg-options "-mdejagnu-cpu=power9 -O2" } */ + +/* Test to verify that the vec_extract with constant element numbers can load + QImode and convert it to unsigned floating point, by loading the value + directly to a vector register, rather than loading up a GPR and transfering + the result to a vector register. This tests whether the ISA 3.0 LXSIBZX + instruction is generated. */ + +#include + +double +extract_dbl_uns_v16qi_0 (vector unsigned char *p) +{ + return vec_extract (*p, 0); /* lxsibzx, fcfid/xscvsxddp. */ +} + +double +extract_dbl_uns_v16qi_1 (vector unsigned char *p) +{ + return vec_extract (*p, 1); /* lxsibzx, fcfid/xscvsxddp. */ +} + +float +extract_flt_uns_v16qi_element_0_index_4 (vector unsigned char *p) +{ + return vec_extract (p[4], 0); /* lxsibzx, fcfids/xscvsxdsp. */ +} + +float +extract_flt_uns_v16qi_element_3_index_4 (vector unsigned char *p) +{ + return vec_extract (p[4], 3); /* lxsibzx, fcfids/xscvsxdsp. */ +} + +/* { dg-final { scan-assembler-times {\mlxsibzx\M} 4 } } */ +/* { dg-final { scan-assembler-times {\mfcfid\M|\mxscvsxddp} 2 } } */ +/* { dg-final { scan-assembler-times {\mfcfids\M|\mxscvsxdsp} 2 } } */ +/* { dg-final { scan-assembler-not {\mlbzx?\M} } } */ +/* { dg-final { scan-assembler-not {\mmtvsr} } } */ diff --git a/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-int-4.c b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-int-4.c new file mode 100644 index 00000000000..95805325e9e --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-int-4.c @@ -0,0 +1,40 @@ +/* { dg-do compile { target lp64 } } */ +/* { dg-require-effective-target powerpc_p8vector_ok } */ +/* { dg-options "-mdejagnu-cpu=power8 -O2" } */ + +/* Test to verify that the vec_extract with constant element numbers can load + SImode and convert it to unsigned floating point, by loading the value + directly to a vector register, rather than loading up a GPR and transfering + the result to a vector register. */ + +#include + +double +extract_dbl_uns_v4si_0 (vector unsigned int *p) +{ + return vec_extract (*p, 0); /* lfiwzx/lxsiwzx, fcfid/xscvsxddp. */ +} + +double +extract_dbl_uns_v4si_1 (vector unsigned int *p) +{ + return vec_extract (*p, 1); /* lfiwzx/lxsiwzx, fcfid/xscvsxddp. */ +} + +float +extract_flt_uns_v4si_element_0_index_4 (vector unsigned int *p) +{ + return vec_extract (p[4], 0); /* lfiwzx/lxsiwzx, fcfids/xscvsxdsp. */ +} + +float +extract_flt_uns_v4si_element_3_index_4 (vector unsigned int *p) +{ + return vec_extract (p[4], 3); /* lfiwzx/lxsiwzx, fcfids/xscvsxdsp. */ +} + +/* { dg-final { scan-assembler-times {\mlfiwzx\M|\mlxsiwzx\M} 4 } } */ +/* { dg-final { scan-assembler-times {\mfcfid\M|\mxscvsxddp\M} 2 } } */ +/* { dg-final { scan-assembler-times {\mfcfids\M|\mxscvsxdsp\M} 2 } } */ +/* { dg-final { scan-assembler-not {\mlw[az]x?\M} } } */ +/* { dg-final { scan-assembler-not {\mmtvsr} } } */ diff --git a/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-int-5.c b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-int-5.c new file mode 100644 index 00000000000..3cf9bafd4f3 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-int-5.c @@ -0,0 +1,40 @@ +/* { dg-do compile { target lp64 } } */ +/* { dg-require-effective-target powerpc_p8vector_ok } */ +/* { dg-options "-mdejagnu-cpu=power8 -O2" } */ + +/* Test to verify that the vec_extract with constant element numbers can load + SImode and convert it to signed floating point, by loading the value + directly to a vector register, rather than loading up a GPR and transfering + the result to a vector register. */ + +#include + +double +extract_dbl_sign_v4si_0 (vector int *p) +{ + return vec_extract (*p, 0); /* lfiwzx/lxsiwzx, fcfid/xscvsxddp. */ +} + +double +extract_dbl_sign_v4si_1 (vector int *p) +{ + return vec_extract (*p, 1); /* lfiwzx/lxsiwzx, fcfid/xscvsxddp. */ +} + +float +extract_flt_sign_v4si_element_0_index_4 (vector int *p) +{ + return vec_extract (p[4], 0); /* lfiwzx/lxsiwzx, fcfids/xscvsxdsp. */ +} + +float +extract_flt_sign_v4si_element_3_index_4 (vector int *p) +{ + return vec_extract (p[4], 3); /* lfiwzx/lxsiwzx, fcfids/xscvsxdsp. */ +} + +/* { dg-final { scan-assembler-times {\mlfiwax\M|\mlxsiwax\M} 4 } } */ +/* { dg-final { scan-assembler-times {\mfcfid\M|\mxscvsxddp\M} 2 } } */ +/* { dg-final { scan-assembler-times {\mfcfids\M|\mxscvsxdsp\M} 2 } } */ +/* { dg-final { scan-assembler-not {\mlw[az]x?\M} } } */ +/* { dg-final { scan-assembler-not {\mmtvsr} } } */ diff --git a/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-short-4.c b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-short-4.c new file mode 100644 index 00000000000..533a80d3d52 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/vec-extract-mem-short-4.c @@ -0,0 +1,41 @@ +/* { dg-do compile { target lp64 } } */ +/* { dg-require-effective-target powerpc_p9vector_ok } */ +/* { dg-options "-mdejagnu-cpu=power9 -O2" } */ + +/* Test to verify that the vec_extract with constant element numbers can load + HImode and convert it to unsigned floating point, by loading the value + directly to a vector register, rather than loading up a GPR and transfering + the result to a vector register. This tests whether the ISA 3.0 LXSIHZX + instruction is generated. */ + +#include + +double +extract_dbl_uns_v8hi_0 (vector unsigned short *p) +{ + return vec_extract (*p, 0); /* lxsihzx, fcfid/xscvsxddp. */ +} + +double +extract_dbl_uns_v8hi_1 (vector unsigned short *p) +{ + return vec_extract (*p, 1); /* lxsihzx, fcfid/xscvsxddp. */ +} + +float +extract_flt_uns_v8hi_element_0_index_4 (vector unsigned short *p) +{ + return vec_extract (p[4], 0); /* lxsihzx, fcfids/xscvsxdsp. */ +} + +float +extract_flt_uns_v8hi_element_3_index_4 (vector unsigned short *p) +{ + return vec_extract (p[4], 3); /* lxsihzx, fcfids/xscvsxdsp. */ +} + +/* { dg-final { scan-assembler-times {\mlxsihzx\M} 4 } } */ +/* { dg-final { scan-assembler-times {\mfcfid\M|\mxscvsxddp\M} 2 } } */ +/* { dg-final { scan-assembler-times {\mfcfids\M|\mxscvsxdsp\M} 2 } } */ +/* { dg-final { scan-assembler-not {\mlh[az]x?\M} } } */ +/* { dg-final { scan-assembler-not {\mmtvsr} } } */