[SystemZ] Do not run mbackchain-4.c test without SystemZ target (#71678)

iii-i · web-flow · commit a933e1417bbc · 2023-11-08T15:53:10.000+01:00
mbackchain-4.c requires running the backend and causes CI failures when
this target is not configured.
diff --git a/clang/test/CodeGen/SystemZ/mbackchain-4.c b/clang/test/CodeGen/SystemZ/mbackchain-4.c
@@ -1,3 +1,4 @@
+// REQUIRES: systemz-registered-target
 // RUN: %clang --target=s390x-linux -O1 -S -o - %s | FileCheck %s
 
 __attribute__((target("backchain")))

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+// REQUIRES: systemz-registered-target`
`1`	`2`	`// RUN: %clang --target=s390x-linux -O1 -S -o - %s \| FileCheck %s`
`2`	`3`
`3`	`4`	`__attribute__((target("backchain")))`