[tests] Make 'object-emission' imply 'default_triple'

[ikudrin]

Summary

If 'config.target_triple' is empty, there is no sense to define the 'object-emission' tag.

[probinson]

Makes sense, LGTM.

[nigelp-xmos]

LGTM.

llvm/test/DebugInfo/cross-cu-scope.ll

 ; RUN: %llc_dwarf %s -filetype=obj -o %t
 ; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s
-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 
 ; Reduced test case from PR35212. Two DISubprogram belong to a different CU but
 ; share a scope. Both are declarations and end up in the scope's CU. We want to
 ; check that the CU from the context DIE is used (rather than from the IR).
 ; This manifests itself by the DW_base_type ending up in the second CU, rather
 ; than in the first one as specified in the IR.
 
 ; CHECK: DW_TAG_compile_unit

llvm/test/DebugInfo/debuglineinfo-path.ll

 ; Make sure that absolute source dir is detected correctly regardless of the platform.
 
 ; On powerpc llvm-nm describes win_func as a global variable, not a function. It breaks the test.
 ; It is not essential to DWARF path handling code we're testing here.
 ; UNSUPPORTED: powerpc
-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 ; RUN: %llc_dwarf -O0 -filetype=obj -o %t < %s
 ; RUN: llvm-nm --radix=o %t | grep posix_absolute_func > %t.posix_absolute_func
 ; RUN: llvm-nm --radix=o %t | grep posix_relative_func > %t.posix_relative_func
 ; RUN: llvm-nm --radix=o %t | grep win_func > %t.win_func
 ; RUN: llvm-symbolizer --functions=linkage --inlining --no-demangle --obj %t < %t.posix_absolute_func | FileCheck %s --check-prefix=POSIX_A
 ; RUN: llvm-symbolizer --functions=linkage --inlining --no-demangle --obj %t < %t.posix_relative_func | FileCheck %s --check-prefix=POSIX_R
 ; RUN: llvm-symbolizer --functions=linkage --inlining --no-demangle --obj %t < %t.win_func | FileCheck %s --check-prefix=WIN
 

 !42 = !{}
 !43 = !{!44}
 !44 = distinct !DISubprogram(name: "posix_relative_func", scope: !41, file: !41, line: 44, type: !45, unit: !40, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, retainedNodes: !42)
 !45 = !DISubroutineType(types: !46)
 !46 = !{!47}
 !47 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !411 = !DILocation(line: 44, column: 2, scope: !44)
 !412 = !DIFile(filename: "c.c", directory: "/ABSOLUTE/CU/PATH")
-

llvm/test/DebugInfo/dwo.ll

 ; RUN: %llc_dwarf %s -filetype=obj -o %t
 ; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s
-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 ;
 ; CHECK: DW_TAG_compile_unit
 ; CHECK-NOT: dwo_id
 ;
 ; The skeleton must come second or LLDB may get confused.
 ; CHECK: DW_TAG_compile_unit
 ; CHECK: DW_AT_GNU_dwo_id {{.*}}abcd
 ; CHECK: DW_AT_GNU_dwo_name {{.*}}"my.dwo"

llvm/test/DebugInfo/omit-empty.ll

 ; RUN: %llc_dwarf %s -filetype=obj -o - | llvm-objdump -h - | FileCheck %s
-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 
 ; CHECK-NOT: .debug_
 
 !llvm.dbg.cu = !{!0, !5}
 !llvm.module.flags = !{!3, !4}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "<stdin>", directory: "/")

llvm/test/DebugInfo/skeletoncu.ll

 ; RUN: %llc_dwarf %s -filetype=obj -o %t
 ; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s
 ; CHECK: DW_TAG_compile_unit
 ; CHECK: DW_AT_GNU_dwo_id {{.*}}abcd
 ; CHECK: DW_AT_GNU_dwo_name {{.*}}"my.dwo"
-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
  
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!3, !4}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: false, runtimeVersion: 2, splitDebugFilename: "my.dwo", emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2, dwoId: 43981)
 !1 = !DIFile(filename: "<stdin>", directory: "/")
 !2 = !{}
 !3 = !{i32 2, !"Dwarf Version", i32 4}
 !4 = !{i32 2, !"Debug Info Version", i32 3}
-

llvm/test/Linker/subprogram-linkonce-weak.ll

 ; RUN: llvm-link %s %S/Inputs/subprogram-linkonce-weak.ll -S -o %t1
 ; RUN: FileCheck %s -check-prefix=LW -check-prefix=CHECK <%t1
 ; RUN: llvm-link %S/Inputs/subprogram-linkonce-weak.ll %s -S -o %t2
 ; RUN: FileCheck %s -check-prefix=WL -check-prefix=CHECK <%t2
-; REQUIRES: default_triple
+; REQUIRES: object-emission
 ;
 ; Bug 47131
 ; XFAIL: sparc
 ;
 ; This testcase tests the following flow:
 ;  - File A defines a linkonce version of @foo which has inlined into @bar.
 ;  - File B defines a weak version of @foo (different definition).
 ;  - Linkage rules state File B version of @foo wins.

 
 !1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, emissionKind: FullDebug)
 !2 = !DIFile(filename: "bar.c", directory: "/path/to/dir")
 !3 = distinct !DISubprogram(file: !2, scope: !2, line: 11, name: "bar", type: !5, unit: !1)
 !4 = distinct !DISubprogram(file: !2, scope: !2, line: 1, name: "foo", type: !5, unit: !1)
 !5 = !DISubroutineType(types: !{})
 
 ; Crasher for llc.
-; REQUIRES: object-emission
 ; RUN: %llc_dwarf -filetype=obj -O0 %t1 -o %t1.o
 ; RUN: llvm-dwarfdump %t1.o --all | FileCheck %s -check-prefix=DWLW -check-prefix=DW
 ; RUN: %llc_dwarf -filetype=obj -O0 %t2 -o %t2.o
 ; RUN: llvm-dwarfdump %t2.o --all | FileCheck %s -check-prefix=DWWL -check-prefix=DW
 ; Check that the debug info for the discarded linkonce version of @foo doesn't
 ; reference any code, and that the other subprograms look correct.
 
 ; DW-LABEL: .debug_info contents:

llvm/test/Linker/type-unique-odr-a.ll

-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 ;
 ; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - \
 ; RUN:   | %llc_dwarf -dwarf-linkage-names=All -filetype=obj -O0 \
 ; RUN:   | llvm-dwarfdump -debug-info - \
 ; RUN:   | FileCheck %s
 ; RUN: llvm-link %p/type-unique-odr-b.ll %s -S -o - \
 ; RUN:   | %llc_dwarf -dwarf-linkage-names=All -filetype=obj -O0 \
 ; RUN:   | llvm-dwarfdump -debug-info - \

llvm/test/Linker/type-unique-simple-a.ll

-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 
 ; RUN: llvm-link %s %p/type-unique-simple-b.ll -S -o %t
 ; RUN: cat %t | FileCheck %s -check-prefix=LINK
 ; RUN: %llc_dwarf -filetype=obj -O0 < %t > %t2
 ; RUN: llvm-dwarfdump -v -debug-info %t2 | FileCheck %s
 
 ; Make sure the backend generates a single DIE and uses ref_addr.
 ; CHECK: 0x[[BASE:.*]]: DW_TAG_structure_type

llvm/test/Linker/type-unique-simple2-a.ll

-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 ;
 ; RUN: llvm-link %s %p/type-unique-simple2-b.ll -S -o - | %llc_dwarf -filetype=obj -O0 | llvm-dwarfdump -v -debug-info - | FileCheck %s
 ;
 ; Tests for a merge error where attributes are inserted twice into the same DIE.
 ;
 ; $ cat ab.h
 ; typedef int foo_t;
 ; class A {

llvm/test/Linker/type-unique-simple2.ll

-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 
 ; RUN: llvm-link %S/Inputs/type-unique-simple2-a.ll %S/Inputs/type-unique-simple2-b.ll -S -o %t
 ; RUN: cat %t | FileCheck %S/Inputs/type-unique-simple2-a.ll -check-prefix=LINK
 ; RUN: %llc_dwarf -filetype=obj -O0 < %t > %t2
 ; RUN: llvm-dwarfdump -v -debug-info %t2 | FileCheck %S/Inputs/type-unique-simple2-a.ll

llvm/test/Linker/type-unique-type-array-a.ll

-; REQUIRES: default_triple, object-emission
+; REQUIRES: object-emission
 ;
 ; RUN: llvm-link %s %p/type-unique-type-array-b.ll -S -o - | %llc_dwarf -filetype=obj -O0 | llvm-dwarfdump -v -debug-info - | FileCheck %s
 ;
 ; rdar://problem/17628609
 ;
 ; cat -n a.cpp
 ;     1 struct SA {
 ;     2   int a;

llvm/test/lit.cfg.py

def have_cxx_shared_library():
     return False
 
 if have_cxx_shared_library():
     config.available_features.add('cxx-shared-library')
 
 if config.libcxx_used:
     config.available_features.add('libcxx-used')
 
-# Direct object generation
-if not 'xcore' in config.target_triple:
-    config.available_features.add('object-emission')
-
 # LLVM can be configured with an empty default triple
 # Some tests are "generic" and require a valid default triple
 if config.target_triple:
     config.available_features.add('default_triple')
+    # Direct object generation
+    if not 'xcore' in config.target_triple:
+        config.available_features.add('object-emission')
 
 import subprocess
 
 
 def have_ld_plugin_support():
     if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold' + config.llvm_shlib_ext)):
         return False