On Thu, Oct 8, 2026 at 10:25 PM Uros Bizjak <[email protected]> wrote:
> On Wed, Oct 7, 2026 at 5:28 PM Shreesh Adiga > <[email protected]> wrote: > > > > On Tue, Sep 8, 2026 at 3:46 PM Mariam Arutunian < > [email protected]> wrote: > >> > >> Thanks for the patch! > >> > >> I've had a quick look, and everything looks okay so far. > > > > > > Thanks Mariam for your review! > > > > GCC x86 maintainers: ping for review. Kindly assist with the next steps > for this change. > > I'm interested in working on 64-bit CRC expansion as a follow up once > this is merged. > > > > Thanks, > > Shreesh > > > >> > >> On Mon, Sep 7, 2026 at 1:56 PM Shreesh Adiga < > [email protected]> wrote: > >>> > >>> From: Mariam Arutunian <[email protected]> > >>> > >>> This patch introduces pclmul expanders for the i386 backend, > >>> dedicated to generating optimized code for CRC computations. > >>> > >>> Expander 1: Bit-Forward CRC (crc<SWI1248x:mode><SWI124:mode>4) > >>> For targets that support both pclmulqdq instruction (TARGET_PCLMUL) > and are > >>> 64-bit (TARGET_64BIT), > >>> the expander will generate code that uses the pclmulqdq instruction > for CRC > >>> computation. > >>> > >>> Expander 2: Bit-Reversed CRC (crc_rev<SWI1248x:mode><SWI124:mode>4) > >>> If the target does not support crc32 but supports pclmulqdq, it then > uses > >>> the pclmulqdq instruction for bit-reversed CRC computation. > >>> > >>> This makes the x86 backend similar to aarch64 which uses pmull. > >>> This is based on earlier submitted patch which was not merged for x86: > >>> https://gcc.gnu.org/pipermail/gcc-patches/2024-November/668248.html > >>> > >>> gcc/ChangeLog: > >>> > >>> * config/i386/i386-expand.cc (ix86_expand_crc_using_pclmul): > New > >>> function that implements pclmul expansion for Bit-Forward CRC > >>> computation. > >>> (ix86_expand_reversed_crc_using_pclmul): New function that > >>> implements pclmul expansion for Bit-Reversed CRC computation. > >>> * config/i386/i386-protos.h (ix86_expand_crc_using_pclmul): New > >>> extern function declaration. > >>> (ix86_expand_reversed_crc_using_pclmul): Likewise. > >>> * config/i386/i386.md (crc_rev<SWI124:mode>si4): Removed older > >>> expansion for Bit-Reversed CRC. > >>> (crc<SWI1248x:mode><SWI124:mode>4): Added new expander for > >>> Bit-Forward CRC. > >>> (crc_rev<SWI1248x:mode><SWI124:mode>4): Added new expander for > >>> Bit-Reversed CRC which extends previous CRC32 expansion. > >>> > >>> gcc/testsuite/ChangeLog: > >>> > >>> * gcc.target/i386/crc-1-pclmul.c: New test. > >>> * gcc.target/i386/crc-10-pclmul.c: New test. > >>> * gcc.target/i386/crc-12-pclmul.c: New test. > >>> * gcc.target/i386/crc-13-pclmul.c: New test. > >>> * gcc.target/i386/crc-14-pclmul.c: New test. > >>> * gcc.target/i386/crc-17-pclmul.c: New test. > >>> * gcc.target/i386/crc-18-pclmul.c: New test. > >>> * gcc.target/i386/crc-21-pclmul.c: New test. > >>> * gcc.target/i386/crc-22-pclmul.c: New test. > >>> * gcc.target/i386/crc-23-pclmul.c: New test. > >>> * gcc.target/i386/crc-4-pclmul.c: New test. > >>> * gcc.target/i386/crc-5-pclmul.c: New test. > >>> * gcc.target/i386/crc-6-pclmul.c: New test. > >>> * gcc.target/i386/crc-7-pclmul.c: New test. > >>> * gcc.target/i386/crc-8-pclmul.c: New test. > >>> * gcc.target/i386/crc-9-pclmul.c: New test. > >>> * gcc.target/i386/crc-CCIT-data16-pclmul.c: New test. > >>> * gcc.target/i386/crc-CCIT-data8-pclmul.c: New test. > >>> * gcc.target/i386/crc-coremark-16bitdata-pclmul.c: New test. > >>> * gcc.target/i386/crc-crc32-data16.c: New test. > >>> * gcc.target/i386/crc-crc32-data32.c: New test. > >>> * gcc.target/i386/crc-crc32-data8.c: New test. > >>> > >>> Co-authored-by: Shreesh Adiga <[email protected]> > >>> Signed-off-by: Shreesh Adiga <[email protected]> > > Mariam's signoff is needed here. > > >>> --- > >>> gcc/config/i386/i386-expand.cc | 133 ++++++++++++++++++ > >>> gcc/config/i386/i386-protos.h | 3 + > >>> gcc/config/i386/i386.md | 53 +++++-- > >>> gcc/testsuite/gcc.target/i386/crc-1-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-10-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-12-pclmul.c | 9 ++ > >>> gcc/testsuite/gcc.target/i386/crc-13-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-14-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-17-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-18-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-21-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-22-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-23-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-4-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-5-pclmul.c | 9 ++ > >>> gcc/testsuite/gcc.target/i386/crc-6-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-7-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-8-pclmul.c | 8 ++ > >>> gcc/testsuite/gcc.target/i386/crc-9-pclmul.c | 8 ++ > >>> .../gcc.target/i386/crc-CCIT-data16-pclmul.c | 9 ++ > >>> .../gcc.target/i386/crc-CCIT-data8-pclmul.c | 9 ++ > >>> .../i386/crc-coremark-16bitdata-pclmul.c | 9 ++ > >>> .../gcc.target/i386/crc-crc32-data16.c | 53 +++++++ > >>> .../gcc.target/i386/crc-crc32-data32.c | 53 +++++++ > >>> .../gcc.target/i386/crc-crc32-data8.c | 53 +++++++ > >>> 25 files changed, 492 insertions(+), 13 deletions(-) > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-1-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-10-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-12-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-13-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-14-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-17-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-18-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-21-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-22-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-23-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-4-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-5-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-6-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-7-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-8-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-9-pclmul.c > >>> create mode 100644 > gcc/testsuite/gcc.target/i386/crc-CCIT-data16-pclmul.c > >>> create mode 100644 > gcc/testsuite/gcc.target/i386/crc-CCIT-data8-pclmul.c > >>> create mode 100644 > gcc/testsuite/gcc.target/i386/crc-coremark-16bitdata-pclmul.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-crc32-data16.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-crc32-data32.c > >>> create mode 100644 gcc/testsuite/gcc.target/i386/crc-crc32-data8.c > >>> > >>> diff --git a/gcc/config/i386/i386-expand.cc > b/gcc/config/i386/i386-expand.cc > >>> index fb4224af0da..6010892e3dc 100644 > >>> --- a/gcc/config/i386/i386-expand.cc > >>> +++ b/gcc/config/i386/i386-expand.cc > >>> @@ -29917,4 +29917,137 @@ ix86_expand_lcp_stall_peephole (rtx_insn > *insn, rtx *operands, > >>> emit_insn (set); > >>> } > >>> > >>> +/* Generate assembly to calculate CRC using pclmulqdq instruction. > >>> + OPERANDS[1] is input CRC, > >>> + OPERANDS[2] is data (message), > >>> + OPERANDS[3] is the polynomial without the leading 1. */ > >>> + > >>> +void > >>> +ix86_expand_crc_using_pclmul (scalar_mode crc_mode, > >>> + scalar_mode data_mode, > >>> + rtx *operands) > >>> +{ > >>> + /* Check and keep arguments. */ > >>> + gcc_assert (!CONST_INT_P (operands[0])); > >>> + gcc_assert (CONST_INT_P (operands[3])); > >>> + rtx crc = operands[1]; > >>> + rtx data = operands[2]; > >>> + rtx polynomial = operands[3]; > >>> + > >>> + unsigned HOST_WIDE_INT crc_size = GET_MODE_BITSIZE (crc_mode); > >>> + unsigned HOST_WIDE_INT data_size = GET_MODE_BITSIZE (data_mode); > >>> + gcc_assert (crc_size <= 32); > >>> + gcc_assert (data_size <= crc_size); > >>> + > >>> + /* Calculate the quotient. */ > >>> + unsigned HOST_WIDE_INT > >>> + q = gf2n_poly_long_div_quotient (UINTVAL (polynomial), > crc_size); > >>> + > >>> + if (crc_size > data_size) > >>> + crc = expand_shift (RSHIFT_EXPR, DImode, crc, crc_size - > data_size, > >>> + NULL_RTX, 1); > >>> + > >>> + /* Keep the quotient in V2DImode. */ > >>> + rtx q_v2di = gen_reg_rtx (V2DImode); > >>> + rtx quotient = force_reg (DImode, gen_int_mode (q, DImode)); > >>> + emit_insn (gen_vec_concatv2di (q_v2di, quotient, const0_rtx)); > > This will move the constant through GPR and will result in movabs (a > costly insn) and inter-unit movq. It is probably cheaper to have a > DImode constant in the constant pool and movq it from there. I assume > the compiler will move the memory load out of the loop by itself. > > >>> + /* crc ^ data and keep in V2DImode. */ > >>> + rtx cd_xor = expand_binop (DImode, xor_optab, crc, data, NULL_RTX, > 1, > >>> + OPTAB_WIDEN); > >>> + > >>> + rtx res = gen_reg_rtx (V2DImode); > >>> + emit_insn (gen_vec_concatv2di (res, cd_xor, const0_rtx)); > >>> + /* Perform carry-less multiplication. */ > >>> + emit_insn (gen_pclmulqdq (res, res, q_v2di, gen_int_mode (0, > SImode))); > > const0_rtx > > >>> + > >>> + res = expand_shift (RSHIFT_EXPR, V2DImode, res, crc_size, NULL_RTX, > 1); > >>> + > >>> + /* Keep the polynomial in V2DImode. */ > >>> + polynomial = simplify_gen_unary (ZERO_EXTEND, DImode, polynomial, > >>> + GET_MODE (polynomial)); > >>> + rtx t1 = force_reg (DImode, polynomial); > >>> + rtx p_v2di = gen_reg_rtx (V2DImode); > >>> + emit_insn (gen_vec_concatv2di (p_v2di, t1, const0_rtx)); > > Here you should use movd from memory (sse2_loadld + some subreg magic). > > Sure I have been looking into the review suggestions and have made the changes locally. I just wanted to confirm if doing movq (quotient) + clmul + movd (polynomial) + clmul is better than doing movdqa (quotient, polynomial) + clmul + clmul with different selector argument instead of 0. Could you share your views on whether clubbing the two constants into a single XMM register load and performing clmul with different lanes would be better or not? Thanks, Shreesh >>> + > >>> + /* Perform carry-less multiplication and get low part. */ > >>> + emit_insn (gen_pclmulqdq (res, res, p_v2di, gen_int_mode (0, > SImode))); > >>> + rtx crc_part = gen_reg_rtx (DImode); > >>> + emit_insn (gen_vec_extractv2didi (crc_part, res, const0_rtx)); > >>> + > >>> + if (crc_size > data_size) > >>> + { > >>> + rtx shift = expand_shift (LSHIFT_EXPR, DImode, operands[1], > data_size, > >>> + NULL_RTX, 1); > >>> + crc_part = expand_binop (DImode, xor_optab, crc_part, shift, > NULL_RTX, 1, > >>> + OPTAB_DIRECT); > >>> + } > >>> + emit_move_insn (operands[0], gen_lowpart (crc_mode, crc_part)); > >>> +} > >>> + > >>> +/* Generate assembly to calculate reversed CRC using pclmulqdq > instruction. > >>> + OPERANDS[1] is input CRC, > >>> + OPERANDS[2] is data (message), > >>> + OPERANDS[3] is the polynomial without the leading 1. */ > >>> + > >>> +void > >>> +ix86_expand_reversed_crc_using_pclmul (scalar_mode crc_mode, > >>> + scalar_mode data_mode, > >>> + rtx *operands) > > The same comments as above apply to this function, too. > > >>> +{ > >>> + /* Check and keep arguments. */ > >>> + gcc_assert (!CONST_INT_P (operands[0])); > >>> + gcc_assert (CONST_INT_P (operands[3])); > >>> + rtx crc = operands[1]; > >>> + rtx data = operands[2]; > >>> + rtx polynomial = operands[3]; > >>> + > >>> + unsigned HOST_WIDE_INT crc_size = GET_MODE_BITSIZE (crc_mode); > >>> + unsigned HOST_WIDE_INT data_size = GET_MODE_BITSIZE (data_mode); > >>> + gcc_assert (crc_size <= 32); > >>> + gcc_assert (data_size <= crc_size); > >>> + > >>> + /* Calculate the quotient. */ > >>> + unsigned HOST_WIDE_INT > >>> + q = gf2n_poly_long_div_quotient (UINTVAL (polynomial), > crc_size); > >>> + /* Reflect the calculated quotient. */ > >>> + q = reflect_hwi (q, crc_size + 1); > >>> + > >>> + rtx q_v2di = gen_reg_rtx (V2DImode); > >>> + rtx quotient = force_reg (DImode, gen_int_mode (q, DImode)); > >>> + emit_insn (gen_vec_concatv2di (q_v2di, quotient, const0_rtx)); > >>> + > >>> + /* crc ^ data and keep in V2DImode. */ > >>> + rtx cd_xor = expand_binop (DImode, xor_optab, crc, data, NULL_RTX, > 1, > >>> + OPTAB_WIDEN); > >>> + > >>> + /* Perform carry-less multiplication. */ > >>> + rtx res = gen_reg_rtx (V2DImode); > >>> + emit_insn (gen_vec_concatv2di (res, cd_xor, const0_rtx)); > >>> + emit_insn (gen_pclmulqdq (res, res, q_v2di, gen_int_mode (0, > SImode))); > >>> + > >>> + res = expand_shift (LSHIFT_EXPR, V2DImode, res, 64 - data_size, > NULL_RTX, 0); > >>> + > >>> + /* Reflect the polynomial and keep in V2DImode. */ > >>> + unsigned HOST_WIDE_INT reflected_op3 = reflect_hwi (UINTVAL > (polynomial), > >>> + crc_size); > >>> + rtx ref_polynomial = force_reg (DImode, > >>> + gen_int_mode (reflected_op3 << 1, > DImode)); > >>> + rtx p_v2di = gen_reg_rtx (V2DImode); > >>> + emit_insn (gen_vec_concatv2di (p_v2di, ref_polynomial, const0_rtx)); > >>> + > >>> + /* Perform carry-less multiplication and get high part. */ > >>> + emit_insn (gen_pclmulqdq (res, res, p_v2di, gen_int_mode (0, > SImode))); > >>> + rtx res_high = gen_reg_rtx (DImode); > >>> + emit_insn (gen_vec_extractv2didi (res_high, res, const1_rtx)); > >>> + > >>> + if (crc_size > data_size) > >>> + { > >>> + rtx shift = expand_shift (RSHIFT_EXPR, DImode, crc, data_size, > >>> + NULL_RTX, 1); > >>> + res_high = expand_binop (DImode, xor_optab, res_high, shift, > NULL_RTX, 1, > >>> + OPTAB_DIRECT); > >>> + } > >>> + emit_move_insn (operands[0], gen_lowpart (crc_mode, res_high)); > >>> +} > >>> + > >>> #include "gt-i386-expand.h" > >>> diff --git a/gcc/config/i386/i386-protos.h > b/gcc/config/i386/i386-protos.h > >>> index 21994d3d498..d225a8fadc2 100644 > >>> --- a/gcc/config/i386/i386-protos.h > >>> +++ b/gcc/config/i386/i386-protos.h > >>> @@ -449,3 +449,6 @@ extern void ix86_set_handled_components (sbitmap); > >>> bool ix86_check_builtin_isa_match (unsigned int, HOST_WIDE_INT*, > >>> HOST_WIDE_INT*); > >>> rtx ix86_vgf2p8affine_shift_matrix (rtx, rtx, enum rtx_code); > >>> +extern void ix86_expand_crc_using_pclmul (scalar_mode, scalar_mode, > rtx *); > >>> +extern void ix86_expand_reversed_crc_using_pclmul (scalar_mode, > scalar_mode, > >>> + rtx *); > >>> diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md > >>> index 4e18797743f..7538b1f70f1 100644 > >>> --- a/gcc/config/i386/i386.md > >>> +++ b/gcc/config/i386/i386.md > >>> @@ -30504,19 +30504,46 @@ (define_insn "sse4_2_crc32di" > >>> (set_attr "prefix_extra" "1") > >>> (set_attr "mode" "DI")]) > >>> > >>> -(define_expand "crc_rev<SWI124:mode>si4" > >>> - [(match_operand:SI 0 "register_operand") > >>> - (match_operand:SI 1 "register_operand") > >>> - (match_operand:SWI124 2 "nonimmediate_operand") > >>> - (match_operand:SI 3 "const_int_operand")] > >>> - "TARGET_CRC32" > >>> -{ > >>> - /* crc32 uses iSCSI polynomial */ > >>> - if (INTVAL (operands[3]) == 0x1EDC6F41) > >>> - emit_insn (gen_sse4_2_crc32<mode> (operands[0], operands[1], > operands[2])); > >>> - else > >>> - expand_reversed_crc_table_based (operands[0], operands[1], > operands[2], > >>> - operands[3], <SWI124:MODE>mode); > >>> +;; Bit-forward CRC > >>> +(define_expand "crc<SWI1248x:mode><SWI124:mode>4" > >>> + [;; return value (calculated CRC) > >>> + (match_operand:SWI124 0 "register_operand" "=r") > >>> + ;; initial CRC > >>> + (match_operand:SWI124 1 "register_operand" "r") > >>> + ;; data > >>> + (match_operand:SWI1248x 2 "register_operand" "r") > > Please remove constraints, they are ignored in expanders. Also, please > place comments after operands, see e.g. atomic_compare_and_swap<mode>. > > >>> + ;; polynomial without leading 1 > >>> + (match_operand:SWI124 3 "const_int_operand")] > >>> + "TARGET_PCLMUL && TARGET_64BIT && <SWI124:MODE>mode >= > <SWI1248x:MODE>mode" > > Please write: > > TARGET_64BIT && TARGET_PCLMUL > && <SWI124... > > Please mind the line length limit. > > >>> +{ > >>> + ix86_expand_crc_using_pclmul (<SWI124:MODE>mode, > <SWI1248x:MODE>mode, > >>> + operands); > >>> + DONE; > >>> +}) > >>> + > >>> +;; Reversed CRC > >>> +(define_expand "crc_rev<SWI1248x:mode><SWI124:mode>4" > >>> + [;; return value (calculated CRC) > >>> + (match_operand:SWI124 0 "register_operand" "=r") > >>> + ;; initial CRC > >>> + (match_operand:SWI124 1 "register_operand" "r") > >>> + ;; data > >>> + (match_operand:SWI1248x 2 "register_operand" "r") > >>> + ;; polynomial without leading 1 > >>> + (match_operand:SWI124 3 "const_int_operand")] > > Same here. > > >>> + "<SWI124:MODE>mode >= <SWI1248x:MODE>mode" > >>> + { > >>> + /* If it is iSCSI polynomial (0x1EDC6F41), generate crc32 > instruction. */ > >>> + if (TARGET_CRC32 && INTVAL (operands[3]) == 0x1EDC6F41 > >>> + && <SWI124:MODE>mode == SImode) > >>> + emit_insn (gen_sse4_2_crc32<SWI1248x:mode> (operands[0], > operands[1], > >>> + operands[2])); > >>> + else if (TARGET_PCLMUL && TARGET_64BIT) > >>> + ix86_expand_reversed_crc_using_pclmul (<SWI124:MODE>mode, > >>> + <SWI1248x:MODE>mode, > operands); > >>> + else > >>> + expand_reversed_crc_table_based (operands[0], operands[1], > operands[2], > >>> + operands[3], > <SWI1248x:MODE>mode); > >>> DONE; > >>> }) > >>> > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-1-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-1-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..21edf417f0c > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-1-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc > -fdisable-tree-phiopt2 -fdisable-tree-phiopt3" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-1.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> \ No newline at end of file > > Please put a newline here, also in other test files. > > Uros. > > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-10-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-10-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..39bfd386d9c > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-10-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-10.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-12-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-12-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..1ac9a6bf56d > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-12-pclmul.c > >>> @@ -0,0 +1,9 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc > -fdisable-tree-phiopt2 -fdisable-tree-phiopt3" } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-12.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-13-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-13-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..c290539fad3 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-13-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-13.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-14-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-14-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..cc62ee471c7 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-14-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-14.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-17-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-17-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..660bff55e1b > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-17-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-17.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-18-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-18-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..e54392b32a9 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-18-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-18.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-21-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-21-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..4db1504cd49 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-21-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-21.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-22-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-22-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..d0f27d96069 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-22-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-22.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-23-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-23-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..666f3620597 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-23-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-23.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-4-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-4-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..398ecaa4aba > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-4-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-4.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-5-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-5-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..b80368e81bc > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-5-pclmul.c > >>> @@ -0,0 +1,9 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -w -fdump-rtl-dfinish -fdump-tree-crc" > } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-5.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> \ No newline at end of file > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-6-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-6-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..20b851e3596 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-6-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-6.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> \ No newline at end of file > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-7-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-7-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..3e5cc75338e > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-7-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-7.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-8-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-8-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..4b1145553fc > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-8-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-8.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-9-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-9-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..204d6c84d47 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-9-pclmul.c > >>> @@ -0,0 +1,8 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-9.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-CCIT-data16-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-CCIT-data16-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..ca728120858 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-CCIT-data16-pclmul.c > >>> @@ -0,0 +1,9 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-w -mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" > } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-CCIT-data16.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> \ No newline at end of file > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-CCIT-data8-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-CCIT-data8-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..816e0561d8f > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-CCIT-data8-pclmul.c > >>> @@ -0,0 +1,9 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-w -mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" > } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto" } } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-CCIT-data8.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> \ No newline at end of file > >>> diff --git > a/gcc/testsuite/gcc.target/i386/crc-coremark-16bitdata-pclmul.c > b/gcc/testsuite/gcc.target/i386/crc-coremark-16bitdata-pclmul.c > >>> new file mode 100644 > >>> index 00000000000..817d960b0aa > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-coremark-16bitdata-pclmul.c > >>> @@ -0,0 +1,9 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-w -mpclmul -O2 -fdump-rtl-dfinish -fdump-tree-crc" > } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include "../../gcc.dg/torture/crc-coremark16-data16.c" > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "pclmulqdq" "dfinish"} } */ > >>> \ No newline at end of file > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-crc32-data16.c > b/gcc/testsuite/gcc.target/i386/crc-crc32-data16.c > >>> new file mode 100644 > >>> index 00000000000..49ab5f31ef0 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-crc32-data16.c > >>> @@ -0,0 +1,53 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mcrc32 -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include <stdint.h> > >>> +#include <stdlib.h> > >>> + > >>> +__attribute__ ((noinline,optimize(0))) > >>> +uint32_t _crc32_O0 (uint32_t crc, uint16_t data) { > >>> + int i; > >>> + crc = crc ^ data; > >>> + > >>> + for (i = 0; i < 8; i++) { > >>> + if (crc & 1) > >>> + crc = (crc >> 1) ^ 0x82F63B78; > >>> + else > >>> + crc = (crc >> 1); > >>> + } > >>> + > >>> + return crc; > >>> +} > >>> + > >>> +uint32_t _crc32 (uint32_t crc, uint16_t data) { > >>> + int i; > >>> + crc = crc ^ data; > >>> + > >>> + for (i = 0; i < 8; i++) { > >>> + if (crc & 1) > >>> + crc = (crc >> 1) ^ 0x82F63B78; > >>> + else > >>> + crc = (crc >> 1); > >>> + } > >>> + > >>> + return crc; > >>> +} > >>> + > >>> +int main () > >>> +{ > >>> + uint32_t crc = 0x0D800D80; > >>> + for (uint16_t i = 0; i < 0xffff; i++) > >>> + { > >>> + uint32_t res1 = _crc32_O0 (crc, i); > >>> + uint32_t res2 = _crc32 (crc, i); > >>> + if (res1 != res2) > >>> + abort (); > >>> + crc = res1; > >>> + } > >>> +} > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "UNSPEC_CRC32" "dfinish"} } */ > >>> +/* { dg-final { scan-rtl-dump-times "pclmulqdq" 0 "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-crc32-data32.c > b/gcc/testsuite/gcc.target/i386/crc-crc32-data32.c > >>> new file mode 100644 > >>> index 00000000000..08d6c193a77 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-crc32-data32.c > >>> @@ -0,0 +1,53 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mcrc32 -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include <stdint.h> > >>> +#include <stdlib.h> > >>> + > >>> +__attribute__ ((noinline,optimize(0))) > >>> +uint32_t _crc32_O0 (uint32_t crc, uint32_t data) { > >>> + int i; > >>> + crc = crc ^ data; > >>> + > >>> + for (i = 0; i < 32; i++) { > >>> + if (crc & 1) > >>> + crc = (crc >> 1) ^ 0x82F63B78; > >>> + else > >>> + crc = (crc >> 1); > >>> + } > >>> + > >>> + return crc; > >>> +} > >>> + > >>> +uint32_t _crc32 (uint32_t crc, uint32_t data) { > >>> + int i; > >>> + crc = crc ^ data; > >>> + > >>> + for (i = 0; i < 32; i++) { > >>> + if (crc & 1) > >>> + crc = (crc >> 1) ^ 0x82F63B78; > >>> + else > >>> + crc = (crc >> 1); > >>> + } > >>> + > >>> + return crc; > >>> +} > >>> + > >>> +int main () > >>> +{ > >>> + uint32_t crc = 0x0D800D80; > >>> + for (uint8_t i = 0; i < 0xff; i++) > >>> + { > >>> + uint32_t res1 = _crc32_O0 (crc, i); > >>> + uint32_t res2 = _crc32 (crc, i); > >>> + if (res1 != res2) > >>> + abort (); > >>> + crc = res1; > >>> + } > >>> +} > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "UNSPEC_CRC32" "dfinish"} } */ > >>> +/* { dg-final { scan-rtl-dump-times "pclmulqdq" 0 "dfinish"} } */ > >>> diff --git a/gcc/testsuite/gcc.target/i386/crc-crc32-data8.c > b/gcc/testsuite/gcc.target/i386/crc-crc32-data8.c > >>> new file mode 100644 > >>> index 00000000000..7a76b27fd28 > >>> --- /dev/null > >>> +++ b/gcc/testsuite/gcc.target/i386/crc-crc32-data8.c > >>> @@ -0,0 +1,53 @@ > >>> +/* { dg-do run } */ > >>> +/* { dg-options "-mcrc32 -O2 -fdump-rtl-dfinish -fdump-tree-crc" } */ > >>> +/* { dg-skip-if "" { *-*-* } { "-flto"} } */ > >>> + > >>> +#include <stdint.h> > >>> +#include <stdlib.h> > >>> + > >>> +__attribute__ ((noinline,optimize(0))) > >>> +uint32_t _crc32_O0 (uint32_t crc, uint8_t data) { > >>> + int i; > >>> + crc = crc ^ data; > >>> + > >>> + for (i = 0; i < 8; i++) { > >>> + if (crc & 1) > >>> + crc = (crc >> 1) ^ 0x82F63B78; > >>> + else > >>> + crc = (crc >> 1); > >>> + } > >>> + > >>> + return crc; > >>> +} > >>> + > >>> +uint32_t _crc32 (uint32_t crc, uint8_t data) { > >>> + int i; > >>> + crc = crc ^ data; > >>> + > >>> + for (i = 0; i < 8; i++) { > >>> + if (crc & 1) > >>> + crc = (crc >> 1) ^ 0x82F63B78; > >>> + else > >>> + crc = (crc >> 1); > >>> + } > >>> + > >>> + return crc; > >>> +} > >>> + > >>> +int main () > >>> +{ > >>> + uint32_t crc = 0x0D800D80; > >>> + for (uint8_t i = 0; i < 0xff; i++) > >>> + { > >>> + uint32_t res1 = _crc32_O0 (crc, i); > >>> + uint32_t res2 = _crc32 (crc, i); > >>> + if (res1 != res2) > >>> + abort (); > >>> + crc = res1; > >>> + } > >>> +} > >>> + > >>> +/* { dg-final { scan-tree-dump "calculates CRC!" "crc"} } */ > >>> +/* { dg-final { scan-tree-dump-times "Couldn't generate faster CRC > code." 0 "crc"} } */ > >>> +/* { dg-final { scan-rtl-dump "UNSPEC_CRC32" "dfinish"} } */ > >>> +/* { dg-final { scan-rtl-dump-times "pclmulqdq" 0 "dfinish"} } */ > >>> -- > >>> 2.55.0 > >>> >
