https://github.com/ecnelises created
https://github.com/llvm/llvm-project/pull/94581
None
>From 4e078099d8e15fd984ef38435d6f792bbb3d754c Mon Sep 17 00:00:00 2001
From: Qiu Chaofan
Date: Thu, 6 Jun 2024 14:06:48 +0800
Subject: [PATCH] [PowerPC] Support -mno-red-zone option
---
clang/lib/Drive
llvmbot wrote:
@llvm/pr-subscribers-clang-driver
Author: Qiu Chaofan (ecnelises)
Changes
---
Full diff: https://github.com/llvm/llvm-project/pull/94581.diff
2 Files Affected:
- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+3)
- (modified) clang/test/Driver/flags.c (+3)
``
https://github.com/chenzheng1030 commented:
Are there backend cases that shows with -disable-red-zone, the final assembly
is still correct?
https://github.com/llvm/llvm-project/pull/94581
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https://github.com/chenzheng1030 edited
https://github.com/llvm/llvm-project/pull/94581
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ecnelises wrote:
No. `-disable-red-zone` does nothing but add `noredzone` IR attribute to
functions. We need to add cases to test for `noredzone` behavior on PPC (arm
and x86 have).
https://github.com/llvm/llvm-project/pull/94581
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chenzheng1030 wrote:
> No. `-disable-red-zone` does nothing but add `noredzone` IR attribute to
> functions. We need to add cases to test for `noredzone` behavior on PPC (arm
> and x86 have).
Yeah, go ahead to add some backend tests first to make sure we have good
functionality for `noredzone
