llvm-reduce: For now, mark these tests as requiring a shell

(since they execute shell scripts/that's the only entry point at the
moment)

llvm-svn: 371764

Author: dwblaikie

llvm/test/Reduce/remove-args.ll

@@ -11,6 +11,7 @@
 
 ; RUN: llvm-reduce --test %t/test.py %s -o %t/out.ll
 ; RUN: cat %t/out.ll | FileCheck -implicit-check-not=uninteresting %s
+; REQUIRES: shell
 
 ; CHECK: @interesting(i32 %interesting)
 define void @interesting(i32 %uninteresting1, i32 %interesting, i32 %uninteresting2) {

llvm/test/Reduce/remove-funcs.ll

@@ -12,6 +12,7 @@
 
 ; RUN: llvm-reduce --test %t/test.py %s -o %t/out.ll
 ; RUN: cat %t/out.ll | FileCheck -implicit-check-not=uninteresting %s
+; REQUIRES: shell
 
 define i32 @uninteresting1() {
 entry:

llvm/test/Reduce/remove-global-vars.ll

@@ -12,6 +12,7 @@
 
 ; RUN: llvm-reduce --test %t/test.py %s -o %t/out.ll
 ; RUN: cat %t/out.ll | FileCheck -implicit-check-not=uninteresting %s
+; REQUIRES: shell
 
 ; CHECK: @interesting = global
 @interesting = global i32 0, align 4

llvm/test/Reduce/remove-metadata.ll

@@ -12,6 +12,7 @@
 
 ; RUN: llvm-reduce --test %t/test.py %s -o %t/out.ll
 ; RUN: cat %t/out.ll | FileCheck -implicit-check-not=! %s
+; REQUIRES: shell
 
 @global = global i32 0, !dbg !0