From f6e4f4f3f19ed4c0d964ef6e22cd79e4ba11415f Mon Sep 17 00:00:00 2001
From: Josh Stone <jistone@redhat.com>
Date: Tue, 4 Mar 2025 09:17:31 -0800
Subject: [PATCH] Temporarily skip PGO on s390x

Resolves: RHEL-81601
Resolves: RHEL-81613
---
 rust.spec | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rust.spec b/rust.spec
index 84a1a6e..673ecdd 100644
--- a/rust.spec
+++ b/rust.spec
@@ -852,6 +852,9 @@ test -r "%{profiler}"
 
 %global __x %{__python3} ./x.py
 
+# Skipping PGO on s390x until we get LLVM 20, due to
+# https://github.com/llvm/llvm-project/issues/124001
+%ifnarch s390x
 %if %with rustc_pgo
 # Build the compiler with profile instrumentation
 %define profraw $PWD/build/profiles
@@ -867,6 +870,7 @@ rm -r "%{profraw}" build/%{rust_triple}/stage2*/
 # Redefine the macro to use that profile data from now on
 %global __x %{__x} --rust-profile-use="%{profdata}"
 %endif
+%endif
 
 # Build the compiler normally (with or without PGO)
 %{__x} build sysroot