It seems because math.h, similar issue as stdint.h, does math.h necessary
for the test case?

juzhe.zh...@rivai.ai <juzhe.zh...@rivai.ai> 於 2023年9月20日 週三 08:44 寫道:

> I didn't see this issue.
> They should be the bogus FAILs.
> We should either fix testcases or ignore them.
>
> ------------------------------
> juzhe.zh...@rivai.ai
>
>
> *From:* Patrick O'Neill <patr...@rivosinc.com>
> *Date:* 2023-09-20 08:34
> *To:* Juzhe-Zhong <juzhe.zh...@rivai.ai>; Robin Dapp <rdapp....@gmail.com>;
> gcc-patches <gcc-patches@gcc.gnu.org>
> *CC:* kito.cheng <kito.ch...@gmail.com>; kito.cheng
> <kito.ch...@sifive.com>; jeffreyalaw <jeffreya...@gmail.com>; Palmer
> Dabbelt <pal...@rivosinc.com>; Edwin Lu <e...@rivosinc.com>;
> joern.rennecke <joern.renne...@embecosm.com>; jeremy.bennett
> <jeremy.benn...@embecosm.com>; gnu-toolchain <gnu-toolch...@rivosinc.com>
> *Subject:* Re: [Committed] RISC-V: Support VLS unary floating-point
> patterns
> Hi,
>
> This patch highlights an issue Edwin and I have been having with the
> testsuite where rv64 testcases are run when testing rv32gcv.
>
> There's a large number of new failures in the rv32gcv testsuite from
> this seemingly innocuous patch.
>
> https://github.com/ewlu/riscv-gnu-toolchain/issues/166
> (The repo is still a WIP - eventually will be non-gating patchworks
> pre-commit CI)
>
> From Edwin and my investigation the failures for rv32gcv look like [1].
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/sysroot/usr/include/gnu/stubs.h:17:11:
>
> fatal error: gnu/stubs-lp64d.h: No such file or directory
> compilation terminated.
>
> Top of the failing testcase:
> /* { dg-do compile } */
> /* { dg-options "-march=rv64gcv_zvfh_zvl4096b -mabi=lp64d -O3
> -fno-schedule-insns -fno-schedule-insns2 --param=riscv-autovec-lmul=m8" }
> */
>
> #include "def.h"
>
> The dg-options explicitly set rv64gcv, so I don't think this testcase
> should even be executed.
>
> For the 3 new failures on rv64gcv, they all explicitly set rv32gcv.
> /* { dg-options "-march=rv32gcv -mabi=ilp32d -O3" } */
>
> These are seen on non-multilib builds. Multilib rv32/64gc does not
> appear to have the same issue when compiling (we're currently testing
> multilib rv32/64gcv to see if they encounter issues when executing).
>
> Are other people seeing similar errors/is this a known issue?
>
> Patrick
>
> [1]:
> Executing on host:
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/build-gcc-linux-stage2/gcc/xgcc
>
> -B/home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/build-gcc-linux-stage2/gcc/
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/floating-point-mul-3.c
>
> -march=rv32gcv -mabi=ilp32d -mcmodel=medlow -fdiagnostics-plain-output
> -O3 -ftree-vectorize --param riscv-autovec-preference=scalable
> -march=rv64gcv_zvfh_zvl4096b -mabi=lp64d -O3 -fno-schedule-insns
> -fno-schedule-insns2 --param=riscv-autovec-lmul=m8 -ffat-lto-objects
> -fno-ident -S   -o floating-point-mul-3.s    (timeout = 600)
> spawn -ignore SIGHUP
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/build-gcc-linux-stage2/gcc/xgcc
>
> -B/home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/build-gcc-linux-stage2/gcc/
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/floating-point-mul-3.c
>
> -march=rv32gcv -mabi=ilp32d -mcmodel=medlow -fdiagnostics-plain-output
> -O3 -ftree-vectorize --param riscv-autovec-preference=scalable
> -march=rv64gcv_zvfh_zvl4096b -mabi=lp64d -O3 -fno-schedule-insns
> -fno-schedule-insns2 --param=riscv-autovec-lmul=m8 -ffat-lto-objects
> -fno-ident -S -o floating-point-mul-3.s
> In file included from
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/sysroot/usr/include/features.h:515,
>                  from
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/sysroot/usr/include/bits/libc-header-start.h:33,
>                  from
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/sysroot/usr/include/math.h:27,
>                  from
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/def.h:2,
>                  from
>
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/floating-point-mul-3.c:4:
> /home/runner/work/riscv-gnu-toolchain/riscv-gnu-toolchain/build/sysroot/usr/include/gnu/stubs.h:17:11:
>
> fatal error: gnu/stubs-lp64d.h: No such file or directory
> compilation terminated.
> compiler exited with status 1
> FAIL: gcc.target/riscv/rvv/autovec/vls/floating-point-mul-3.c -O3
> -ftree-vectorize --param riscv-autovec-preference=scalable (test for
> excess errors)
>
> On 9/19/23 04:26, Juzhe-Zhong wrote:
> > Extend current VLA patterns with VLS modes.
> >
> > Regression all passed.
> >
> > gcc/ChangeLog:
> >
> > * config/riscv/autovec.md: Extend VLS modes.
> > * config/riscv/vector.md: Ditto.
> >
> > gcc/testsuite/ChangeLog:
> >
> > * gcc.target/riscv/rvv/autovec/vls/def.h: Add unary test.
> > * gcc.target/riscv/rvv/autovec/vls/neg-2.c: New test.
> >
> > ---
> >   gcc/config/riscv/autovec.md                   | 12 ++---
> >   gcc/config/riscv/vector.md                    | 20 +++----
> >   .../gcc.target/riscv/rvv/autovec/vls/def.h    |  3 +-
> >   .../gcc.target/riscv/rvv/autovec/vls/neg-2.c  | 52 +++++++++++++++++++
> >   4 files changed, 70 insertions(+), 17 deletions(-)
> >   create mode 100644
> gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/neg-2.c
> >
> > diff --git a/gcc/config/riscv/autovec.md b/gcc/config/riscv/autovec.md
> > index 769ef6daa36..75ed7ae4f2e 100644
> > --- a/gcc/config/riscv/autovec.md
> > +++ b/gcc/config/riscv/autovec.md
> > @@ -1031,9 +1031,9 @@
> >   ;; - vfneg.v/vfabs.v
> >   ;;
> -------------------------------------------------------------------------------
> >   (define_insn_and_split "<optab><mode>2"
> > -  [(set (match_operand:VF 0 "register_operand")
> > -    (any_float_unop_nofrm:VF
> > -     (match_operand:VF 1 "register_operand")))]
> > +  [(set (match_operand:V_VLSF 0 "register_operand")
> > +    (any_float_unop_nofrm:V_VLSF
> > +     (match_operand:V_VLSF 1 "register_operand")))]
> >     "TARGET_VECTOR && can_create_pseudo_p ()"
> >     "#"
> >     "&& 1"
> > @@ -1052,9 +1052,9 @@
> >   ;; - vfsqrt.v
> >   ;;
> -------------------------------------------------------------------------------
> >   (define_insn_and_split "<optab><mode>2"
> > -  [(set (match_operand:VF 0 "register_operand")
> > -    (any_float_unop:VF
> > -     (match_operand:VF 1 "register_operand")))]
> > +  [(set (match_operand:V_VLSF 0 "register_operand")
> > +    (any_float_unop:V_VLSF
> > +     (match_operand:V_VLSF 1 "register_operand")))]
> >     "TARGET_VECTOR && can_create_pseudo_p ()"
> >     "#"
> >     "&& 1"
> > diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md
> > index f7f37da692a..f66ffebba24 100644
> > --- a/gcc/config/riscv/vector.md
> > +++ b/gcc/config/riscv/vector.md
> > @@ -6756,8 +6756,8 @@
> >   ;;
> -------------------------------------------------------------------------------
> >
> >   (define_insn "@pred_<optab><mode>"
> > -  [(set (match_operand:VF 0 "register_operand"           "=vd, vd, vr,
> vr")
> > - (if_then_else:VF
> > +  [(set (match_operand:V_VLSF 0 "register_operand"           "=vd, vd,
> vr, vr")
> > + (if_then_else:V_VLSF
> >     (unspec:<VM>
> >       [(match_operand:<VM> 1 "vector_mask_operand" " vm, vm,Wc1,Wc1")
> >        (match_operand 4 "vector_length_operand"    " rK, rK, rK, rK")
> > @@ -6768,9 +6768,9 @@
> >        (reg:SI VL_REGNUM)
> >        (reg:SI VTYPE_REGNUM)
> >        (reg:SI FRM_REGNUM)] UNSPEC_VPREDICATE)
> > -   (any_float_unop:VF
> > -     (match_operand:VF 3 "register_operand"       " vr, vr, vr, vr"))
> > -   (match_operand:VF 2 "vector_merge_operand"     " vu,  0, vu,  0")))]
> > +   (any_float_unop:V_VLSF
> > +     (match_operand:V_VLSF 3 "register_operand"       " vr, vr, vr,
> vr"))
> > +   (match_operand:V_VLSF 2 "vector_merge_operand"     " vu,  0, vu,
> 0")))]
> >     "TARGET_VECTOR"
> >     "vf<insn>.v\t%0,%3%p1"
> >     [(set_attr "type" "<float_insn_type>")
> > @@ -6783,8 +6783,8 @@
> >   (symbol_ref "riscv_vector::get_frm_mode (operands[8])"))])
> >
> >   (define_insn "@pred_<optab><mode>"
> > -  [(set (match_operand:VF 0 "register_operand"           "=vd, vd, vr,
> vr")
> > - (if_then_else:VF
> > +  [(set (match_operand:V_VLSF 0 "register_operand"           "=vd, vd,
> vr, vr")
> > + (if_then_else:V_VLSF
> >     (unspec:<VM>
> >       [(match_operand:<VM> 1 "vector_mask_operand" " vm, vm,Wc1,Wc1")
> >        (match_operand 4 "vector_length_operand"    " rK, rK, rK, rK")
> > @@ -6793,9 +6793,9 @@
> >        (match_operand 7 "const_int_operand"        "  i,  i,  i,  i")
> >        (reg:SI VL_REGNUM)
> >        (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)
> > -   (any_float_unop_nofrm:VF
> > -     (match_operand:VF 3 "register_operand"       " vr, vr, vr, vr"))
> > -   (match_operand:VF 2 "vector_merge_operand"     " vu,  0, vu,  0")))]
> > +   (any_float_unop_nofrm:V_VLSF
> > +     (match_operand:V_VLSF 3 "register_operand"       " vr, vr, vr,
> vr"))
> > +   (match_operand:V_VLSF 2 "vector_merge_operand"     " vu,  0, vu,
> 0")))]
> >     "TARGET_VECTOR"
> >     "vf<insn>.v\t%0,%3%p1"
> >     [(set_attr "type" "<float_insn_type>")
> > diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/def.h
> b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/def.h
> > index 5df90704885..d7b721b4e3e 100644
> > --- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/def.h
> > +++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/def.h
> > @@ -1,4 +1,5 @@
> >   #include <stdint-gcc.h>
> > +#include <math.h>
> >
> >   typedef int8_t v1qi __attribute__ ((vector_size (1)));
> >   typedef int8_t v2qi __attribute__ ((vector_size (2)));
> > @@ -210,7 +211,7 @@ typedef double v512df __attribute__ ((vector_size
> (4096)));
> >     PREFIX##_##TYPE##NUM (TYPE *restrict a, TYPE *restrict
> b)                    \
> >
> {
> \
> >       for (int i = 0; i < NUM;
> ++i)                                              \
> > -      a[i] = OP
> b[i];                                                          \
> > +      a[i] = OP
> (b[i]);                                                        \
> >     }
> >
> >   #define DEF_CALL_VV(PREFIX, NUM, TYPE,
> CALL)                                   \
> > diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/neg-2.c
> b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/neg-2.c
> > new file mode 100644
> > index 00000000000..c2ab0098afa
> > --- /dev/null
> > +++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/neg-2.c
> > @@ -0,0 +1,52 @@
> > +/* { dg-do compile } */
> > +/* { dg-options "-march=rv64gcv_zvfh_zvl4096b -mabi=lp64d -O3
> -fno-schedule-insns -fno-schedule-insns2 --param=riscv-autovec-lmul=m8
> -fdump-tree-optimized" } */
> > +
> > +#include "def.h"
> > +
> > +DEF_OP_V (neg, 2, _Float16, -)
> > +DEF_OP_V (neg, 4, _Float16, -)
> > +DEF_OP_V (neg, 8, _Float16, -)
> > +DEF_OP_V (neg, 16, _Float16, -)
> > +DEF_OP_V (neg, 32, _Float16, -)
> > +DEF_OP_V (neg, 64, _Float16, -)
> > +DEF_OP_V (neg, 128, _Float16, -)
> > +DEF_OP_V (neg, 256, _Float16, -)
> > +DEF_OP_V (neg, 512, _Float16, -)
> > +DEF_OP_V (neg, 1024, _Float16, -)
> > +DEF_OP_V (neg, 2048, _Float16, -)
> > +
> > +DEF_OP_V (neg, 2, float, -)
> > +DEF_OP_V (neg, 4, float, -)
> > +DEF_OP_V (neg, 8, float, -)
> > +DEF_OP_V (neg, 16, float, -)
> > +DEF_OP_V (neg, 32, float, -)
> > +DEF_OP_V (neg, 64, float, -)
> > +DEF_OP_V (neg, 128, float, -)
> > +DEF_OP_V (neg, 256, float, -)
> > +DEF_OP_V (neg, 512, float, -)
> > +DEF_OP_V (neg, 1024, float, -)
> > +
> > +DEF_OP_V (neg, 2, double, -)
> > +DEF_OP_V (neg, 4, double, -)
> > +DEF_OP_V (neg, 8, double, -)
> > +DEF_OP_V (neg, 16, double, -)
> > +DEF_OP_V (neg, 32, double, -)
> > +DEF_OP_V (neg, 64, double, -)
> > +DEF_OP_V (neg, 128, double, -)
> > +DEF_OP_V (neg, 256, double, -)
> > +DEF_OP_V (neg, 512, double, -)
> > +
> > +/* { dg-final { scan-assembler-times {vfneg\.v\s+v[0-9]+,\s*v[0-9]+} 30
> } } */
> > +/* { dg-final { scan-assembler-not {csrr} } } */
> > +/* { dg-final { scan-tree-dump-not "1,1" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "2,2" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "4,4" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "16,16" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "32,32" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "64,64" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "128,128" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "256,256" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "512,512" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "1024,1024" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "2048,2048" "optimized" } } */
> > +/* { dg-final { scan-tree-dump-not "4096,4096" "optimized" } } */
>
>
>

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