From d9f50366102a8ca3521e4854f7716bd013c8ea0a Mon Sep 17 00:00:00 2001 From: Andrew Stubbs Date: Mon, 9 Nov 2020 17:42:34 +0000 Subject: [PATCH] amdgcn: Allow V64DFmode min/max reductions I don't know why these were disabled. There're no direct min/max DPP instructions for this mode, but the "use moves" strategy works fine. gcc/ChangeLog: * config/gcn/gcn.c (gcn_expand_reduc_scalar): Use move instructions for V64DFmode min/max reductions. --- gcc/config/gcn/gcn.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/config/gcn/gcn.c b/gcc/config/gcn/gcn.c index 3b1762efd3a..2351b24a4d5 100644 --- a/gcc/config/gcn/gcn.c +++ b/gcc/config/gcn/gcn.c @@ -4251,7 +4251,8 @@ gcn_expand_reduc_scalar (machine_mode mode, rtx src, int unspec) || unspec == UNSPEC_SMAX_DPP_SHR || unspec == UNSPEC_UMIN_DPP_SHR || unspec == UNSPEC_UMAX_DPP_SHR) - && mode == V64DImode) + && (mode == V64DImode + || mode == V64DFmode)) || (unspec == UNSPEC_PLUS_DPP_SHR && mode == V64DFmode)); rtx_code code = (unspec == UNSPEC_SMIN_DPP_SHR ? SMIN -- 2.30.2