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Backport 092c303955cd18be6c0b923b1c0a1b96e2c91893

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Related: rhbz#1890165
This commit is contained in:
serge-sans-paille 2021-06-14 10:33:51 +02:00
parent d4d329062c
commit a17efc19d8
2 changed files with 40 additions and 1 deletions
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35
0001-PATCH-clang-AMD-k8-family-does-not-support-SSE4.x-wh.patch Normal file
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@ -0,0 +1,35 @@
From 6e6453d16aed8ff6220f9933aa5c3f5832e8ff69 Mon Sep 17 00:00:00 2001
From: serge-sans-paille <sguelton@redhat.com>
Date: Fri, 11 Jun 2021 15:42:26 +0200
Subject: [PATCH][clang] AMD k8 family does not support SSE4.x which are
required by x86-64-v2+
So don't define __tune__k8__ for these micro architecture.
SSE, SSE2 and SSE3 appear in https://www.amd.com/system/files/TechDocs/25112.PDF
but not SSE4.x.
Differential Revision: https://reviews.llvm.org/D104116
(cherry picked from commit 092c303955cd18be6c0b923b1c0a1b96e2c91893)
---
clang/lib/Basic/Targets/X86.cpp | 3 ---
1 file changed, 3 deletions(-)
diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp
index 694a809..80e160b 100644
--- a/clang/lib/Basic/Targets/X86.cpp
+++ b/clang/lib/Basic/Targets/X86.cpp
@@ -513,9 +513,6 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
case CK_K8:
case CK_K8SSE3:
case CK_x86_64:
- case CK_x86_64_v2:
- case CK_x86_64_v3:
- case CK_x86_64_v4:
defineCPUMacros(Builder, "k8");
break;
case CK_AMDFAM10:
--
1.8.3.1

6
clang.spec
View File

@ -78,7 +78,7 @@
Name: %pkg_name
Version: %{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:~rc%{rc_ver}}
Release: 4%{?dist}
Release: 5%{?dist}
Summary: A C language family front-end for LLVM
License: NCSA
@ -102,6 +102,7 @@ Patch2: 0003-PATCH-clang-Don-t-install-static-libraries.patch
Patch3: 0004-PATCH-clang-Prefer-gcc-toolchains-with-libgcc_s.so-w.patch
Patch4: 0005-PATCH-clang-Partially-Revert-scan-view-Remove-Report.patch
Patch5: 0006-PATCH-clang-Allow-__ieee128-as-an-alias-to-__float12.patch
Patch6: 0001-PATCH-clang-AMD-k8-family-does-not-support-SSE4.x-wh.patch
# Patches for clang-tools-extra
%if !0%{?compat_build}
@ -588,6 +589,9 @@ false
%endif
%changelog
* Mon Jun 14 2021 sguelton@redhat.com - 12.0.0-5
- Backport
* Tue Jun 08 2021 Tom Stellard <tstellar@redhat.com> - 12.0.0-4
- Only enable -funwind-tables by default on Fedora arches