https://github.com/jhuber6 created
https://github.com/llvm/llvm-project/pull/127890
Summary:
This argument is esoteric and previously didn't even work consistently
across the targets. Now that's fixed we should document it better.
>From a7be26f70a9ba9a381e91b4c6257dc173444c6ef Mon Sep 17 00:00:00 2001
From: Joseph Huber <hube...@outlook.com>
Date: Wed, 19 Feb 2025 14:01:56 -0600
Subject: [PATCH] [Clang][Docs] Document -Xarch_ better
Summary:
This argument is esoteric and previously didn't even work consistently
across the targets. Now that's fixed we should document it better.
---
clang/include/clang/Driver/Options.td | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/clang/include/clang/Driver/Options.td
b/clang/include/clang/Driver/Options.td
index 5ad187926e710..b5598a44758a8 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -934,6 +934,12 @@ def Xanalyzer : Separate<["-"], "Xanalyzer">,
Group<StaticAnalyzer_Group>;
def Xarch__ : JoinedAndSeparate<["-"], "Xarch_">, Flags<[NoXarchOption]>,
HelpText<"Pass <arg> to the compiliation if the target matches <arch>">,
+ DocBrief<[{Specifies that the argument should only be used if the
compileation
+ target matches the specified architecture. This can be used with the target
+ CPU, triple architecture, or offloading host and device. This is most useful
+ for separating behavior undesirable on one of the targets when combining many
+ compilation jobs, as is commong with offloading. For example, -Xarch_x86_64,
+ -Xarch_gfx90a, and -Xarch_device are all valid selectors.}]>,
MetaVarName<"<arch> <arg>">;
def Xarch_host : Separate<["-"], "Xarch_host">, Flags<[NoXarchOption]>,
HelpText<"Pass <arg> to the CUDA/HIP host compilation">,
MetaVarName<"<arg>">;
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