From patchwork Wed Feb 2 08:30:44 2022
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Date: Wed, 2 Feb 2022 09:30:44 +0100
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To: Tom de Vries , gcc-patches
From: Tobias Burnus
Subject: =?utf-8?q?=5BPatch=5D=5Bwwwdocs_+_gcc=5D_nvptx_=E2=80=93_update_for?=
=?utf-8?q?_-mptx_change_=E2=80=93_gcc-12/changes=2Ehtml_+_gcc/docs/invoke?=
=?utf-8?q?=2Etexi?=
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This patch updates the documentation for Tom's change of the default
-mptx= version - mentioning also -mptx=7.0.
I forgot whether ptx = 7.0 was working fine or whether there was
a reason not to mention it.
At some point, we also have to update -misa=... Currently, only
sm_30 and sm_35 are documented but sm_53, sm_75 and sm_80 are supported.
Can they now be documented are are there still issues?
OK to commit the wwwdocs + gcc invoke.texi patches?
Tobias
PS: I wonder whether any of the recent changes by chance did fix
https://gcc.gnu.org/PR102429 – nvptx: ICE with expand_GOMP_SIMT_XCHG_BFLY
: in expand_insn, at optabs.c:7947 for DCmode (complex double)
Probably not, but it would have been nice nonetheless.
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gcc-12/changes.html: nvptx – update for -mptx change
diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 2719b9d5..bd0babfb 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -404,7 +404,8 @@ a work-in-progress.
- The
-mptx
flag has been added to specify the PTX ISA version
for the generated code; permitted values are 3.1
- (default, matches previous GCC versions) and 6.3
.
+ (matches previous GCC versions), 6.3
(new default) and
+ 7.0
.
- The new
__PTX_SM__
predefined macro allows code to check the
compute model being targeted by the compiler.