From 5b5e456f0187406e17444b6e40d974f94524f2a2 Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Thu, 3 Mar 2022 09:22:42 +0100 Subject: [PATCH] [nvptx] Build libraries with mptx=3.1 In gcc-5 to gcc-11, the ptx isa version was 3.1. On trunk, the default is now 6.0, which is also what will be the value in the libraries. Consequently, there may be setups with an older driver that worked with gcc-11, but will become unsupported with gcc-12. Fix this by building the libraries with mptx=3.1. After this, setups with an older driver still won't work out of the box with gcc-12, because the default ptx isa version has changed, but should work after specifying mptx=3.1. gcc/ChangeLog: 2022-03-03 Tom de Vries * config/nvptx/t-nvptx (MULTILIB_EXTRA_OPTS): Add mptx=3.1. --- gcc/config/nvptx/t-nvptx | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/nvptx/t-nvptx b/gcc/config/nvptx/t-nvptx index 056d2dd..8f67264 100644 --- a/gcc/config/nvptx/t-nvptx +++ b/gcc/config/nvptx/t-nvptx @@ -32,4 +32,4 @@ s-nvptx-gen-opt: $(srcdir)/config/nvptx/nvptx-sm.def MULTILIB_OPTIONS = mgomp -MULTILIB_EXTRA_OPTS = misa=sm_30 +MULTILIB_EXTRA_OPTS = misa=sm_30 mptx=3.1 -- 2.7.4