Re: [PATCH] RISC-V: Fix reduc_strict_run-1 test case.

[Jeff Law via Gcc-patches]

On 8/15/23 09:49, Robin Dapp wrote:
Hi,

this patch changes the equality check for the reduc_strict_run-1
testcase from == to fabs () < EPS.  The FAIL only occurs with
_Float16 but I'd argue approximate equality is preferable for all
float modes.

Regards
  Robin

gcc/testsuite/ChangeLog:

        * gcc.target/riscv/rvv/autovec/reduc/reduc_strict_run-1.c:
        Check float equality with fabs < EPS.
Generally agree with using an EPS test.

The question is shouldn't a fold-left reduction be done in-order and 
produce the same result as a scalar equivalent?

Jeff