Re: [RISC-V]: Re: cpymem for RISCV with v extension

[Patrick O'Neill <patrick@rivosinc.com>]

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On 10/4/23 12:19, Joern Rennecke wrote:

> On Wed, 4 Oct 2023 at 18:38, Patrick O'Neill<patrick@rivosinc.com>  wrote:
>> Hi Joern,
>>
>> I'm seeing new failures introduced by this patch
>> (9464e72bcc9123b619215af8cfef491772a3ebd9).
>>
>> On rv64gcv:
>> FAIL: gcc.dg/pr90263.c scan-assembler memcpy
> My testing didn't flag this because I used elf targets.  The
> expected behaviour now is to use vector instructions for rvv.
> so we shouldn't expect memcpy to appear there.  I think the
> rvv case is suitably covered by the new tests, so we just
> have to avoid the failure here.  Does the attached patch work for you?

Thanks for the quick response. I'm glad to hear the behavior is expected :)
The attached patch works, just needed some syntax changes:
ERROR: gcc.dg/pr90263.c: error executing dg-final: syntax error in target selector "target i?86-*-* x86_64-*-* riscv_v"
Diff w/ syntax changes:
diff --git a/gcc/testsuite/gcc.dg/pr90263.c b/gcc/testsuite/gcc.dg/pr90263.c
index 3222a5331c1..4044e6b1544 100644
--- a/gcc/testsuite/gcc.dg/pr90263.c
+++ b/gcc/testsuite/gcc.dg/pr90263.c
@@ -9,4 +9,4 @@ int *f (int *p, int *q, long n)
  }

  /* { dg-final { scan-assembler "mempcpy" { target { i?86-*-* x86_64-*-* } } } } */
-/* { dg-final { scan-assembler "memcpy" { target { ! { i?86-*-* x86_64-*-* } } } } } */
+/* { dg-final { scan-assembler "memcpy" { target { ! { { i?86-*-* x86_64-*-* } || { riscv_v } } } } } } */

I'll send it as a patch shortly.

Patrick

>> FAIL: gfortran.fortran-torture/execute/intrinsic_count.f90 execution,
>> -O2 -fomit-frame-pointer -finline-functions -funroll-loops
> There seems to be an issue with my test setup regarding fortran, I'll
> have to investigate.