llvm_9: fix test failing on non-x86, such as our aarch64

pkgs/development/compilers/llvm/9/fix-test-on-non-x86-like-others.patch

@@ -0,0 +1,23 @@
+Index: test/tools/gold/X86/linkonce_odr_unnamed_addr.ll
+===================================================================
+diff --git a/test/tools/gold/X86/linkonce_odr_unnamed_addr.ll b/llvm/trunk/test/tools/gold/X86/linkonce_odr_unnamed_addr.ll
+--- a/test/tools/gold/X86/linkonce_odr_unnamed_addr.ll	(revision 372333)
++++ b/test/tools/gold/X86/linkonce_odr_unnamed_addr.ll	(working copy)
+@@ -3,7 +3,7 @@
+ 
+ ; RUN: opt -module-summary %s -o %t.o
+ ; RUN: opt -module-summary %p/Inputs/linkonce_odr_unnamed_addr.ll -o %t2.o
+-; RUN: %gold -plugin %llvmshlibdir/LLVMgold%shlibext \
++; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold%shlibext \
+ ; RUN:    --plugin-opt=save-temps \
+ ; RUN:    %t.o %t2.o -o %t3.o
+ ; RUN: llvm-dis %t.o.1.promote.bc -o - | FileCheck %s
+@@ -11,7 +11,7 @@
+ ; Now test when one module is a native object. In that case we must be
+ ; conservative and not auto hide.
+ ; RUN: llc %p/Inputs/linkonce_odr_unnamed_addr.ll -o %t2native.o -filetype=obj
+-; RUN: %gold -plugin %llvmshlibdir/LLVMgold%shlibext \
++; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold%shlibext \
+ ; RUN:    --plugin-opt=save-temps \
+ ; RUN:    %t.o %t2native.o -o %t3.o
+ ; RUN: llvm-dis %t.o.1.promote.bc -o - | FileCheck %s --check-prefix=NOSUMMARY

pkgs/development/compilers/llvm/9/llvm.nix

@@ -81,6 +81,10 @@ in stdenv.mkDerivation (rec {
     # Fix test so that no extra locale files are needed
     substituteInPlace test/tools/llvm-ar/mri-utf8.test \
       --replace en_US.UTF-8 C.UTF-8
+
+    # Fix x86 gold test on non-x86 platforms
+    # (similar fix made to others in this directory previously, FWIW)
+    patch -p1 -i  ${./fix-test-on-non-x86-like-others.patch}
   '';
 
   # hacky fix: created binaries need to be run before installation