[clang] Make Driver tests pass when running with temp dir containing "crt"

[thakis]

Summary

In a recent run, temp files got created in /tmp/lit-tmp-2wcrtcx1/foo-xxx.o.
Since the tmp path contained "crt", this made a few tests fail:
http://45.33.8.238/linux/72221/step_7.txt

Not allowing '/' as path of the file name prevents this.

[hans]

lgtm

clang/test/Driver/dragonfly.c

 // RUN: %clang -no-canonical-prefixes -target x86_64-pc-dragonfly %s -### 2> %t.log
 // RUN: FileCheck -input-file %t.log %s
 
 // CHECK: clang{{.*}}" "-cc1" "-triple" "x86_64-pc-dragonfly"
 // CHECK: ld{{.*}}" "--eh-frame-hdr" "-dynamic-linker" "/usr/libexec/ld-elf.so.{{.*}}" "--hash-style=gnu" "--enable-new-dtags" "-o" "a.out" "{{.*}}crt1.o" "{{.*}}crti.o" "{{.*}}crtbegin.o" "{{.*}}.o" "-L{{.*}}gcc{{.*}}" "-rpath" "{{.*}}gcc{{.*}}" "-lc" "-lgcc" "{{.*}}crtend.o" "{{.*}}crtn.o"
 
 // -r suppresses default -l and crt*.o like -nostdlib.
 // RUN: %clang -### %s --target=x86_64-pc-dragonfly -r \
 // RUN:   2>&1 | FileCheck %s --check-prefix=RELOCATABLE
 // RELOCATABLE:     "-r"
 // RELOCATABLE-NOT: "-l
-// RELOCATABLE-NOT: {{.*}}crt{{[^.]+}}.o
+// RELOCATABLE-NOT: {{.*}}crt{{[^./]+}}.o

clang/test/Driver/freebsd.c

 // RUN: FileCheck -check-prefix=PPC64-MUNWIND %s
 // PPC64-MUNWIND: "-funwind-tables=2"
 
 /// -r suppresses default -l and crt*.o like -nostdlib.
 // RUN: %clang -### %s --target=aarch64-pc-freebsd11 -r \
 // RUN:   --sysroot=%S/Inputs/basic_freebsd64_tree 2>&1 | FileCheck %s --check-prefix=RELOCATABLE
 // RELOCATABLE:     "-r"
 // RELOCATABLE-NOT: "-l
-// RELOCATABLE-NOT: crt{{[^.]+}}.o
+// RELOCATABLE-NOT: crt{{[^./]+}}.o

clang/test/Driver/fuchsia.c

 // CHECK-SHARED: "-shared"
 
 // RUN: %clang %s -### --target=x86_64-unknown-fuchsia -r -fuse-ld=lld 2>&1 \
 // RUN:     | FileCheck %s -check-prefix=CHECK-RELOCATABLE
 // CHECK-RELOCATABLE-NOT: "-pie"
 // CHECK-RELOCATABLE-NOT: "--build-id"
 // CHECK-RELOCATABLE: "-r"
 // CHECK-RELOCATABLE-NOT: "-l
-// CHECK-RELOCATABLE-NOT: crt{{[^.]+}}.o
+// CHECK-RELOCATABLE-NOT: crt{{[^./]+}}.o
 
 // RUN: %clang %s -### --target=x86_64-unknown-fuchsia -nodefaultlibs -fuse-ld=lld 2>&1 \
 // RUN:     -resource-dir=%S/Inputs/resource_dir_with_per_target_subdir \
 // RUN:     | FileCheck %s -check-prefix=CHECK-NODEFAULTLIBS
 // CHECK-NODEFAULTLIBS: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-NODEFAULTLIBS-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}x86_64-unknown-fuchsia{{/|\\\\}}libclang_rt.builtins.a"
 // CHECK-NODEFAULTLIBS-NOT: "-lc"
 

clang/test/Driver/linux-cross.cpp

 // RUN: %clang -### %s --target=x86_64-linux-gnu --sysroot=%S/Inputs/debian_multiarch_tree \
 // RUN:   -ccc-install-dir %S/Inputs/basic_linux_tree/usr/bin -resource-dir=%S/Inputs/resource_dir \
 // RUN:   --stdlib=platform --rtlib=platform -r 2>&1 | FileCheck %s --check-prefix=RELOCATABLE
 // RELOCATABLE:      "-internal-isystem"
 // RELOCATABLE-SAME: {{^}} "[[SYSROOT:[^"]+]]/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10"
 // RELOCATABLE:      "-L
 // RELOCATABLE-SAME: {{^}}[[SYSROOT]]/usr/lib/gcc/x86_64-linux-gnu/10"
 // RELOCATABLE-NOT:  "-l
-// RELOCATABLE-NOT:  crt{{[^.]+}}.o
+// RELOCATABLE-NOT:  crt{{[^./]+}}.o

clang/test/Driver/netbsd.c

 // POWERPC-SECUREPLT: "-target-feature" "+secure-plt"
 
 // -r suppresses default -l and crt*.o like -nostdlib.
 // RUN: %clang -no-canonical-prefixes -target x86_64-unknown-netbsd -r \
 // RUN: --sysroot=%S/Inputs/basic_netbsd_tree %s -### 2>&1 \
 // RUN: | FileCheck -check-prefix=RELOCATABLE %s
 // RELOCATABLE:     "-r"
 // RELOCATABLE-NOT: "-l
-// RELOCATABLE-NOT: crt{{[^.]+}}.o
+// RELOCATABLE-NOT: crt{{[^./]+}}.o

clang/test/Driver/openbsd.c

 // RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -Z %s -### 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-LD-Z %s
 // RUN: %clang -no-canonical-prefixes -target mips64-unknown-openbsd %s -### 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-MIPS64-LD %s
 // RUN: %clang -no-canonical-prefixes -target mips64el-unknown-openbsd %s -### 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-MIPS64EL-LD %s
 // CHECK-LD-R:     "-r"
 // CHECK-LD-R-NOT: "-l
-// CHECK-LD-R-NOT: crt{{[^.]+}}.o
+// CHECK-LD-R-NOT: crt{{[^./]+}}.o
 // CHECK-LD-S: clang{{.*}}" "-cc1" "-triple" "i686-pc-openbsd"
 // CHECK-LD-S: ld{{.*}}" "-e" "__start" "--eh-frame-hdr" "-Bdynamic" "-dynamic-linker" "{{.*}}ld.so" "-o" "a.out" "{{.*}}crt0.o" "{{.*}}crtbegin.o" "-L{{.*}}" "-s" "{{.*}}.o" "-lcompiler_rt" "-lc" "-lcompiler_rt" "{{.*}}crtend.o"
 // CHECK-LD-T: clang{{.*}}" "-cc1" "-triple" "i686-pc-openbsd"
 // CHECK-LD-T: ld{{.*}}" "-e" "__start" "--eh-frame-hdr" "-Bdynamic" "-dynamic-linker" "{{.*}}ld.so" "-o" "a.out" "{{.*}}crt0.o" "{{.*}}crtbegin.o" "-L{{.*}}" "-t" "{{.*}}.o" "-lcompiler_rt" "-lc" "-lcompiler_rt" "{{.*}}crtend.o"
 // CHECK-LD-Z: clang{{.*}}" "-cc1" "-triple" "i686-pc-openbsd"
 // CHECK-LD-Z: ld{{.*}}" "-e" "__start" "--eh-frame-hdr" "-Bdynamic" "-dynamic-linker" "{{.*}}ld.so" "-o" "a.out" "{{.*}}crt0.o" "{{.*}}crtbegin.o" "-L{{.*}}" "-Z" "{{.*}}.o" "-lcompiler_rt" "-lc" "-lcompiler_rt" "{{.*}}crtend.o"
 // CHECK-MIPS64-LD: clang{{.*}}" "-cc1" "-triple" "mips64-unknown-openbsd"
 // CHECK-MIPS64-LD: ld{{.*}}" "-EB" "-e" "__start" "--eh-frame-hdr" "-Bdynamic" "-dynamic-linker" "{{.*}}ld.so" "-o" "a.out" "{{.*}}crt0.o" "{{.*}}crtbegin.o" "-L{{.*}}" "{{.*}}.o" "-lcompiler_rt" "-lc" "-lcompiler_rt" "{{.*}}crtend.o"