[llvm-branch-commits] [compiler-rt] release/19.x: [compiler-rt][test] Disable lld tests on SPARC (#100533) (PR #100979)

[Tobias Hieta via llvm-branch-commits]

https://github.com/tru updated https://github.com/llvm/llvm-project/pull/100979

>From bf173ba0ea34a59d3ce76ce7535c8ca186bdf681 Mon Sep 17 00:00:00 2001
From: Rainer Orth <ro at gcc.gnu.org>
Date: Mon, 29 Jul 2024 09:12:15 +0200
Subject: [PATCH] [compiler-rt][test] Disable lld tests on SPARC (#100533)

As detailed in Issue #100320, a considerable number of tests that
explicitly use `-fuse-ld=lld` `FAIL` on Linux/sparc64 due to several
`lld` limitations (no 32-bit SPARC support, lack of support for various
relocations, ...).

To reduce the noise, this patch disables `COMPILER_RT_HAS_LLD` on SPARC
wholesale.

Tested on `sparc64-unknown-linux-gnu`.

(cherry picked from commit 33a50e0eaa80cf3db1b944762db9a37a06f3ac32)
---
 compiler-rt/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compiler-rt/CMakeLists.txt b/compiler-rt/CMakeLists.txt
index 65063e0057bbc..6b8d9a5ea46d6 100644
--- a/compiler-rt/CMakeLists.txt
+++ b/compiler-rt/CMakeLists.txt
@@ -801,6 +801,10 @@ if(ANDROID)
   append_list_if(COMPILER_RT_HAS_FUSE_LD_LLD_FLAG -fuse-ld=lld SANITIZER_COMMON_LINK_FLAGS)
   append_list_if(COMPILER_RT_HAS_LLD -fuse-ld=lld COMPILER_RT_UNITTEST_LINK_FLAGS)
 endif()
+if(${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES sparc)
+  # lld has several bugs/limitations on SPARC, so disable (Issue #100320).
+  set(COMPILER_RT_HAS_LLD FALSE)
+endif()
 pythonize_bool(COMPILER_RT_HAS_LLD)
 pythonize_bool(COMPILER_RT_TEST_USE_LLD)