sys-devel/clang: Fix test failure w/ USE=compiler-rt in 6.0.0

Closes: https://bugs.gentoo.org/650316

sys-devel/clang/clang-6.0.0-r1.ebuild

@@ -74,6 +74,9 @@ PATCHES=(
 	# fix Driver crash with CHOST prefix and long command-line
 	# https://bugs.gentoo.org/650082
 	"${FILESDIR}"/6.0.0/0001-Driver-Avoid-invalidated-iterator-in-insertTargetAnd.patch
+	# fix test failure with default-compiler-rt
+	# https://bugs.gentoo.org/650316
+	"${FILESDIR}"/6.0.0/0002-test-Fix-Cross-DSO-CFI-Android-sanitizer-test-for-rt.patch
 )
 
 # Multilib notes:

sys-devel/clang/files/6.0.0/0002-test-Fix-Cross-DSO-CFI-Android-sanitizer-test-for-rt.patch

@@ -0,0 +1,30 @@
+From f81bc3f2d174ac21e576cdddb736524531258fbe Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
+Date: Mon, 19 Mar 2018 20:55:47 +0100
+Subject: [PATCH 2/2] [test] Fix Cross-DSO CFI Android sanitizer test for
+ -rtlib=compiler-rt
+
+Fix the CHECK-CFI-CROSS-DSO-ANDROID test to be more precise and match
+specifically 'clang_rt.cfi' rather than any compiler-rt library. This
+fixes the failure when the linker command-line contains
+clang_rt.builtins library due to CLANG_DEFAULT_RTLIB=compiler-rt.
+---
+ test/Driver/sanitizer-ld.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test/Driver/sanitizer-ld.c b/test/Driver/sanitizer-ld.c
+index 0da4255f69..9309450186 100644
+--- a/test/Driver/sanitizer-ld.c
++++ b/test/Driver/sanitizer-ld.c
+@@ -514,7 +514,7 @@
+ // RUN:     --sysroot=%S/Inputs/basic_android_tree \
+ // RUN:   | FileCheck --check-prefix=CHECK-CFI-CROSS-DSO-ANDROID %s
+ // CHECK-CFI-CROSS-DSO-ANDROID: "{{.*}}ld{{(.exe)?}}"
+-// CHECK-CFI-CROSS-DSO-ANDROID-NOT: libclang_rt.
++// CHECK-CFI-CROSS-DSO-ANDROID-NOT: libclang_rt.cfi
+ 
+ // Cross-DSO CFI with diagnostics on Android links just the UBSAN runtime.
+ // RUN: %clang -fsanitize=cfi -fsanitize-cfi-cross-dso %s -### -o %t.o 2>&1 \
+-- 
+2.16.2
+