lld/test/MachO/objc-category-merging-minimal.s - llvm-project - Git at Google

 # REQUIRES: aarch64
 # UNSUPPORTED: system-windows
 #   due to awk usage

 # RUN: rm -rf %t; split-file %s %t && cd %t

 ############ Test merging multiple categories into a single category ############
 ## Create a dylib with a fake base class to link against in when merging between categories
 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o a64_fakedylib.o a64_fakedylib.s
 # RUN: %lld -arch arm64 a64_fakedylib.o -o a64_fakedylib.dylib -dylib

 ## Create our main testing dylib - linking against the fake dylib above
 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_cat_minimal.o merge_cat_minimal.s
 # RUN: %lld -arch arm64 -dylib -o merge_cat_minimal_no_merge.dylib a64_fakedylib.dylib merge_cat_minimal.o
 # RUN: %lld -arch arm64 -dylib -o merge_cat_minimal_merge.dylib -objc_category_merging a64_fakedylib.dylib merge_cat_minimal.o

 ## Now verify that the flag caused category merging to happen appropriatelly
 # RUN: llvm-objdump --objc-meta-data --macho merge_cat_minimal_no_merge.dylib | FileCheck %s --check-prefixes=NO_MERGE_CATS
 # RUN: llvm-objdump --objc-meta-data --macho merge_cat_minimal_merge.dylib | FileCheck %s --check-prefixes=MERGE_CATS

 ############ Test merging multiple categories into the base class ############
 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_base_class_minimal.o merge_base_class_minimal.s
 # RUN: %lld -arch arm64 -dylib -o merge_base_class_minimal_yes_merge.dylib -objc_category_merging merge_base_class_minimal.o merge_cat_minimal.o
 # RUN: %lld -arch arm64 -dylib -o merge_base_class_minimal_no_merge.dylib merge_base_class_minimal.o merge_cat_minimal.o

 # RUN: llvm-objdump --objc-meta-data --macho merge_base_class_minimal_no_merge.dylib  | FileCheck %s --check-prefixes=NO_MERGE_INTO_BASE
 # RUN: llvm-objdump --objc-meta-data --macho merge_base_class_minimal_yes_merge.dylib | FileCheck %s --check-prefixes=YES_MERGE_INTO_BASE

 ############ Test merging swift category into the base class ############
 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o MyBaseClassSwiftExtension.o MyBaseClassSwiftExtension.s
 # RUN: %lld -no_objc_relative_method_lists -arch arm64 -dylib -o merge_base_class_swift_minimal_yes_merge.dylib -objc_category_merging MyBaseClassSwiftExtension.o merge_base_class_minimal.o
 # RUN: llvm-objdump --objc-meta-data --macho merge_base_class_swift_minimal_yes_merge.dylib | FileCheck %s --check-prefixes=YES_MERGE_INTO_BASE_SWIFT

 ############ Test merging skipped due to invalid category name ############
 # Modify __OBJC_$_CATEGORY_MyBaseClass_$_Category01's name to point to L_OBJC_IMAGE_INFO+3
 # RUN: awk '/^__OBJC_\$_CATEGORY_MyBaseClass_\$_Category01:/ { print; getline; sub(/^[ \t]*\.quad[ \t]+l_OBJC_CLASS_NAME_$/, "\t.quad\tL_OBJC_IMAGE_INFO+3"); print; next } { print }' merge_cat_minimal.s > merge_cat_minimal_bad_name.s

 # Assemble the modified source
 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_cat_minimal_bad_name.o merge_cat_minimal_bad_name.s

 # Run lld and check for the specific warning
 # RUN: %no-fatal-warnings-lld -arch arm64 -dylib -objc_category_merging -o merge_cat_minimal_merge.dylib a64_fakedylib.dylib merge_cat_minimal_bad_name.o 2>&1 | FileCheck %s --check-prefix=MERGE_WARNING

 # Check that lld emitted the warning about skipping category merging
 MERGE_WARNING: warning: ObjC category merging skipped for class symbol' _OBJC_CLASS_$_MyBaseClass'

 #### Check merge categories enabled ###
 # Check that the original categories are not there
 MERGE_CATS-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
 MERGE_CATS-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category02

 # Check that the merged cateogry is there, in the correct format
 MERGE_CATS: __OBJC_$_CATEGORY_MyBaseClass(Category01|Category02)
 MERGE_CATS-NEXT:   name {{.*}} Category01|Category02
 MERGE_CATS:       instanceMethods
 MERGE_CATS-NEXT:  entsize 12 (relative)
 MERGE_CATS-NEXT:  count 2
 MERGE_CATS-NEXT:   name {{.*}} cat01_InstanceMethod
 MERGE_CATS-NEXT:  types {{.*}} v16@0:8
 MERGE_CATS-NEXT:    imp {{.*}} -[MyBaseClass(Category01) cat01_InstanceMethod]
 MERGE_CATS-NEXT:   name {{.*}} cat02_InstanceMethod
 MERGE_CATS-NEXT:  types {{.*}} v16@0:8
 MERGE_CATS-NEXT:    imp {{.*}} -[MyBaseClass(Category02) cat02_InstanceMethod]
 MERGE_CATS-NEXT:         classMethods 0x0
 MERGE_CATS-NEXT:            protocols 0x0
 MERGE_CATS-NEXT:   instanceProperties 0x0

 #### Check merge categories disabled ###
 # Check that the merged category is not there
 NO_MERGE_CATS-NOT: __OBJC_$_CATEGORY_MyBaseClass(Category01|Category02)

 # Check that the original categories are there
 NO_MERGE_CATS: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
 NO_MERGE_CATS: __OBJC_$_CATEGORY_MyBaseClass_$_Category02


 #### Check merge cateogires into base class is disabled ####
 NO_MERGE_INTO_BASE: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
 NO_MERGE_INTO_BASE: __OBJC_$_CATEGORY_MyBaseClass_$_Category02

 #### Check merge cateogires into base class is enabled and categories are merged into base class ####
 YES_MERGE_INTO_BASE-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
 YES_MERGE_INTO_BASE-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category02

 YES_MERGE_INTO_BASE: _OBJC_CLASS_$_MyBaseClass
 YES_MERGE_INTO_BASE-NEXT: _OBJC_METACLASS_$_MyBaseClass
 YES_MERGE_INTO_BASE: baseMethods
 YES_MERGE_INTO_BASE-NEXT: entsize 12 (relative)
 YES_MERGE_INTO_BASE-NEXT: count 3
 YES_MERGE_INTO_BASE-NEXT: name {{.*}} cat01_InstanceMethod
 YES_MERGE_INTO_BASE-NEXT: types {{.*}} v16@0:8
 YES_MERGE_INTO_BASE-NEXT: imp {{.*}} -[MyBaseClass(Category01) cat01_InstanceMethod]
 YES_MERGE_INTO_BASE-NEXT: name {{.*}} cat02_InstanceMethod
 YES_MERGE_INTO_BASE-NEXT: types {{.*}} v16@0:8
 YES_MERGE_INTO_BASE-NEXT: imp {{.*}} -[MyBaseClass(Category02) cat02_InstanceMethod]
 YES_MERGE_INTO_BASE-NEXT: name {{.*}} baseInstanceMethod
 YES_MERGE_INTO_BASE-NEXT: types {{.*}} v16@0:8
 YES_MERGE_INTO_BASE-NEXT: imp {{.*}} -[MyBaseClass baseInstanceMethod]


 #### Check merge swift category into base class ###
 YES_MERGE_INTO_BASE_SWIFT: _OBJC_CLASS_$_MyBaseClass
 YES_MERGE_INTO_BASE_SWIFT-NEXT: _OBJC_METACLASS_$_MyBaseClass
 YES_MERGE_INTO_BASE_SWIFT: baseMethods
 YES_MERGE_INTO_BASE_SWIFT-NEXT: entsize 24
 YES_MERGE_INTO_BASE_SWIFT-NEXT: count 2
 YES_MERGE_INTO_BASE_SWIFT-NEXT: name {{.*}} swiftMethod
 YES_MERGE_INTO_BASE_SWIFT-NEXT: types {{.*}} v16@0:8
 YES_MERGE_INTO_BASE_SWIFT-NEXT: imp _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyFTo
 YES_MERGE_INTO_BASE_SWIFT-NEXT: name {{.*}} baseInstanceMethod
 YES_MERGE_INTO_BASE_SWIFT-NEXT: types {{.*}} v16@0:8
 YES_MERGE_INTO_BASE_SWIFT-NEXT: imp -[MyBaseClass baseInstanceMethod]


 #--- a64_fakedylib.s

     .section    __DATA,__objc_data
     .globl    _OBJC_CLASS_$_MyBaseClass
 _OBJC_CLASS_$_MyBaseClass:
     .quad    0

 #--- merge_cat_minimal.s

 ;  ================== Generated from ObjC: ==================
 ; __attribute__((objc_root_class))
 ; @interface MyBaseClass
 ; - (void)baseInstanceMethod;
 ; @end
 ;
 ; @interface MyBaseClass(Category01)
 ; - (void)cat01_InstanceMethod;
 ; @end
 ;
 ; @implementation MyBaseClass(Category01)
 ; - (void)cat01_InstanceMethod {}
 ; @end
 ;
 ; @interface MyBaseClass(Category02)
 ; - (void)cat02_InstanceMethod;
 ; @end
 ;
 ; @implementation MyBaseClass(Category02)
 ; - (void)cat02_InstanceMethod {}
 ; @end
 ;  ================== Generated from ObjC: ==================

 	.section	__TEXT,__text,regular,pure_instructions
 	.p2align	2                               ; -- Begin function -[MyBaseClass(Category01) cat01_InstanceMethod]
 "-[MyBaseClass(Category01) cat01_InstanceMethod]": ; @"\01-[MyBaseClass(Category01) cat01_InstanceMethod]"
 	.cfi_startproc
 	ret
 	.cfi_endproc
                                         ; -- End function
 	.p2align	2                               ; -- Begin function -[MyBaseClass(Category02) cat02_InstanceMethod]
 "-[MyBaseClass(Category02) cat02_InstanceMethod]": ; @"\01-[MyBaseClass(Category02) cat02_InstanceMethod]"
 	.cfi_startproc
 	ret
 	.cfi_endproc
                                         ; -- End function
 	.section	__TEXT,__objc_classname,cstring_literals
 l_OBJC_CLASS_NAME_:                     ; @OBJC_CLASS_NAME_
 	.asciz	"Category01"
 	.section	__TEXT,__objc_methname,cstring_literals
 l_OBJC_METH_VAR_NAME_:                  ; @OBJC_METH_VAR_NAME_
 	.asciz	"cat01_InstanceMethod"
 	.section	__TEXT,__objc_methtype,cstring_literals
 l_OBJC_METH_VAR_TYPE_:                  ; @OBJC_METH_VAR_TYPE_
 	.asciz	"v16@0:8"
 	.section	__DATA,__objc_const
 	.p2align	3, 0x0                          ; @"_OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category01"
 __OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category01:
 	.long	24                              ; 0x18
 	.long	1                               ; 0x1
 	.quad	l_OBJC_METH_VAR_NAME_
 	.quad	l_OBJC_METH_VAR_TYPE_
 	.quad	"-[MyBaseClass(Category01) cat01_InstanceMethod]"
 	.p2align	3, 0x0                          ; @"_OBJC_$_CATEGORY_MyBaseClass_$_Category01"
 __OBJC_$_CATEGORY_MyBaseClass_$_Category01:
 	.quad	l_OBJC_CLASS_NAME_
 	.quad	_OBJC_CLASS_$_MyBaseClass
 	.quad	__OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category01
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	0
 	.long	64                              ; 0x40
 	.space	4
 	.section	__DATA,__objc_const
 l_OBJC_CLASS_NAME_.1:                   ; @OBJC_CLASS_NAME_.1
 	.asciz	"Category02"
 	.section	__TEXT,__objc_methname,cstring_literals
 l_OBJC_METH_VAR_NAME_.2:                ; @OBJC_METH_VAR_NAME_.2
 	.asciz	"cat02_InstanceMethod"
 	.section	__DATA,__objc_const
 	.p2align	3, 0x0                          ; @"_OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category02"
 __OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category02:
 	.long	24                              ; 0x18
 	.long	1                               ; 0x1
 	.quad	l_OBJC_METH_VAR_NAME_.2
 	.quad	l_OBJC_METH_VAR_TYPE_
 	.quad	"-[MyBaseClass(Category02) cat02_InstanceMethod]"
 	.p2align	3, 0x0                          ; @"_OBJC_$_CATEGORY_MyBaseClass_$_Category02"
 __OBJC_$_CATEGORY_MyBaseClass_$_Category02:
 	.quad	l_OBJC_CLASS_NAME_.1
 	.quad	_OBJC_CLASS_$_MyBaseClass
 	.quad	__OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category02
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	0
 	.long	64                              ; 0x40
 	.space	4
 	.section	__DATA,__objc_catlist,regular,no_dead_strip
 	.p2align	3, 0x0                          ; @"OBJC_LABEL_CATEGORY_$"
 l_OBJC_LABEL_CATEGORY_$:
 	.quad	__OBJC_$_CATEGORY_MyBaseClass_$_Category01
 	.quad	__OBJC_$_CATEGORY_MyBaseClass_$_Category02
 	.section	__DATA,__objc_imageinfo,regular,no_dead_strip
 L_OBJC_IMAGE_INFO:
 	.long	0
 	.long	96
 .subsections_via_symbols

 .addrsig
 .addrsig_sym __OBJC_$_CATEGORY_MyBaseClass_$_Category01

 #--- merge_base_class_minimal.s
 ; clang -c merge_base_class_minimal.mm -O3 -target arm64-apple-macos -arch arm64 -S -o merge_base_class_minimal.s
 ;  ================== Generated from ObjC: ==================
 ; __attribute__((objc_root_class))
 ; @interface MyBaseClass
 ; - (void)baseInstanceMethod;
 ; @end
 ;
 ; @implementation MyBaseClass
 ; - (void)baseInstanceMethod {}
 ; @end
 ;  ================== Generated from ObjC  ==================
 	.section	__TEXT,__text,regular,pure_instructions
 	.build_version macos, 11, 0
 	.p2align	2
 "-[MyBaseClass baseInstanceMethod]":
 	.cfi_startproc
 ; %bb.0:
 	ret
 	.cfi_endproc
 	.section	__DATA,__objc_data
 	.globl	_OBJC_CLASS_$_MyBaseClass
 	.p2align	3, 0x0
 _OBJC_CLASS_$_MyBaseClass:
 	.quad	_OBJC_METACLASS_$_MyBaseClass
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	__OBJC_CLASS_RO_$_MyBaseClass
 	.globl	_OBJC_METACLASS_$_MyBaseClass
 	.p2align	3, 0x0
 _OBJC_METACLASS_$_MyBaseClass:
 	.quad	_OBJC_METACLASS_$_MyBaseClass
 	.quad	_OBJC_CLASS_$_MyBaseClass
 	.quad	0
 	.quad	0
 	.quad	__OBJC_METACLASS_RO_$_MyBaseClass
 	.section	__TEXT,__objc_classname,cstring_literals
 l_OBJC_CLASS_NAME_:
 	.asciz	"MyBaseClass"
 	.section	__DATA,__objc_const
 	.p2align	3, 0x0
 __OBJC_METACLASS_RO_$_MyBaseClass:
 	.long	3
 	.long	40
 	.long	40
 	.space	4
 	.quad	0
 	.quad	l_OBJC_CLASS_NAME_
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	0
 	.section	__TEXT,__objc_methname,cstring_literals
 l_OBJC_METH_VAR_NAME_:
 	.asciz	"baseInstanceMethod"
 	.section	__TEXT,__objc_methtype,cstring_literals
 l_OBJC_METH_VAR_TYPE_:
 	.asciz	"v16@0:8"
 	.section	__DATA,__objc_const
 	.p2align	3, 0x0
 __OBJC_$_INSTANCE_METHODS_MyBaseClass:
 	.long	24
 	.long	1
 	.quad	l_OBJC_METH_VAR_NAME_
 	.quad	l_OBJC_METH_VAR_TYPE_
 	.quad	"-[MyBaseClass baseInstanceMethod]"
 	.p2align	3, 0x0
 __OBJC_CLASS_RO_$_MyBaseClass:
 	.long	2
 	.long	0
 	.long	0
 	.space	4
 	.quad	0
 	.quad	l_OBJC_CLASS_NAME_
 	.quad	__OBJC_$_INSTANCE_METHODS_MyBaseClass
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	0
 	.section	__DATA,__objc_classlist,regular,no_dead_strip
 	.p2align	3, 0x0
 l_OBJC_LABEL_CLASS_$:
 	.quad	_OBJC_CLASS_$_MyBaseClass
 	.section	__DATA,__objc_imageinfo,regular,no_dead_strip
 L_OBJC_IMAGE_INFO:
 	.long	0
 	.long	64
 .subsections_via_symbols


 #--- MyBaseClassSwiftExtension.s
 ; xcrun -sdk macosx swiftc -emit-assembly MyBaseClassSwiftExtension.swift -import-objc-header YourProject-Bridging-Header.h -o MyBaseClassSwiftExtension.s
 ;  ================== Generated from Swift: ==================
 ; import Foundation
 ; extension MyBaseClass {
 ;     @objc func swiftMethod() {
 ;     }
 ; }
 ;  ================== Generated from Swift ===================
 	.private_extern	_$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyF
 	.globl	_$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyF
 	.p2align	2
 _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyF:
 	.cfi_startproc
 	mov	w0, #0
 	ret
 	.cfi_endproc

 	.p2align	2
 _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyFTo:
 	.cfi_startproc
 	mov	w0, #0
 	ret
 	.cfi_endproc

 	.section	__TEXT,__cstring,cstring_literals
 	.p2align	4, 0x0
 l_.str.25.MyBaseClassSwiftExtension:
 	.asciz	"MyBaseClassSwiftExtension"

 	.section	__TEXT,__objc_methname,cstring_literals
 "L_selector_data(swiftMethod)":
 	.asciz	"swiftMethod"

 	.section	__TEXT,__cstring,cstring_literals
 "l_.str.7.v16@0:8":
 	.asciz	"v16@0:8"

 	.section	__DATA,__objc_data
 	.p2align	3, 0x0
 __CATEGORY_INSTANCE_METHODS_MyBaseClass_$_MyBaseClassSwiftExtension:
 	.long	24
 	.long	1
 	.quad	"L_selector_data(swiftMethod)"
 	.quad	"l_.str.7.v16@0:8"
 	.quad	_$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyFTo

 	.section	__DATA,__objc_const
 	.p2align	3, 0x0
 __CATEGORY_MyBaseClass_$_MyBaseClassSwiftExtension:
 	.quad	l_.str.25.MyBaseClassSwiftExtension
 	.quad	_OBJC_CLASS_$_MyBaseClass
 	.quad	__CATEGORY_INSTANCE_METHODS_MyBaseClass_$_MyBaseClassSwiftExtension
 	.quad	0
 	.quad	0
 	.quad	0
 	.quad	0
 	.long	60
 	.space	4

 	.section	__DATA,__objc_catlist,regular,no_dead_strip
 	.p2align	3, 0x0
 _objc_categories:
 	.quad	__CATEGORY_MyBaseClass_$_MyBaseClassSwiftExtension

 	.no_dead_strip	_main
 	.no_dead_strip	l_entry_point

 .subsections_via_symbols
	# REQUIRES: aarch64
	# UNSUPPORTED: system-windows
	# due to awk usage

	# RUN: rm -rf %t; split-file %s %t && cd %t

	############ Test merging multiple categories into a single category ############
	## Create a dylib with a fake base class to link against in when merging between categories
	# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o a64_fakedylib.o a64_fakedylib.s
	# RUN: %lld -arch arm64 a64_fakedylib.o -o a64_fakedylib.dylib -dylib

	## Create our main testing dylib - linking against the fake dylib above
	# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_cat_minimal.o merge_cat_minimal.s
	# RUN: %lld -arch arm64 -dylib -o merge_cat_minimal_no_merge.dylib a64_fakedylib.dylib merge_cat_minimal.o
	# RUN: %lld -arch arm64 -dylib -o merge_cat_minimal_merge.dylib -objc_category_merging a64_fakedylib.dylib merge_cat_minimal.o

	## Now verify that the flag caused category merging to happen appropriatelly
	# RUN: llvm-objdump --objc-meta-data --macho merge_cat_minimal_no_merge.dylib \| FileCheck %s --check-prefixes=NO_MERGE_CATS
	# RUN: llvm-objdump --objc-meta-data --macho merge_cat_minimal_merge.dylib \| FileCheck %s --check-prefixes=MERGE_CATS

	############ Test merging multiple categories into the base class ############
	# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_base_class_minimal.o merge_base_class_minimal.s
	# RUN: %lld -arch arm64 -dylib -o merge_base_class_minimal_yes_merge.dylib -objc_category_merging merge_base_class_minimal.o merge_cat_minimal.o
	# RUN: %lld -arch arm64 -dylib -o merge_base_class_minimal_no_merge.dylib merge_base_class_minimal.o merge_cat_minimal.o

	# RUN: llvm-objdump --objc-meta-data --macho merge_base_class_minimal_no_merge.dylib \| FileCheck %s --check-prefixes=NO_MERGE_INTO_BASE
	# RUN: llvm-objdump --objc-meta-data --macho merge_base_class_minimal_yes_merge.dylib \| FileCheck %s --check-prefixes=YES_MERGE_INTO_BASE

	############ Test merging swift category into the base class ############
	# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o MyBaseClassSwiftExtension.o MyBaseClassSwiftExtension.s
	# RUN: %lld -no_objc_relative_method_lists -arch arm64 -dylib -o merge_base_class_swift_minimal_yes_merge.dylib -objc_category_merging MyBaseClassSwiftExtension.o merge_base_class_minimal.o
	# RUN: llvm-objdump --objc-meta-data --macho merge_base_class_swift_minimal_yes_merge.dylib \| FileCheck %s --check-prefixes=YES_MERGE_INTO_BASE_SWIFT

	############ Test merging skipped due to invalid category name ############
	# Modify __OBJC_$_CATEGORY_MyBaseClass_$_Category01's name to point to L_OBJC_IMAGE_INFO+3
	# RUN: awk '/^__OBJC_\$_CATEGORY_MyBaseClass_\$_Category01:/ { print; getline; sub(/^[ \t]*\.quad[ \t]+l_OBJC_CLASS_NAME_$/, "\t.quad\tL_OBJC_IMAGE_INFO+3"); print; next } { print }' merge_cat_minimal.s > merge_cat_minimal_bad_name.s

	# Assemble the modified source
	# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos -o merge_cat_minimal_bad_name.o merge_cat_minimal_bad_name.s

	# Run lld and check for the specific warning
	# RUN: %no-fatal-warnings-lld -arch arm64 -dylib -objc_category_merging -o merge_cat_minimal_merge.dylib a64_fakedylib.dylib merge_cat_minimal_bad_name.o 2>&1 \| FileCheck %s --check-prefix=MERGE_WARNING

	# Check that lld emitted the warning about skipping category merging
	MERGE_WARNING: warning: ObjC category merging skipped for class symbol' _OBJC_CLASS_$_MyBaseClass'

	#### Check merge categories enabled ###
	# Check that the original categories are not there
	MERGE_CATS-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
	MERGE_CATS-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category02

	# Check that the merged cateogry is there, in the correct format
	MERGE_CATS: __OBJC_$_CATEGORY_MyBaseClass(Category01\|Category02)
	MERGE_CATS-NEXT: name {{.*}} Category01\|Category02
	MERGE_CATS: instanceMethods
	MERGE_CATS-NEXT: entsize 12 (relative)
	MERGE_CATS-NEXT: count 2
	MERGE_CATS-NEXT: name {{.*}} cat01_InstanceMethod
	MERGE_CATS-NEXT: types {{.*}} v16@0:8
	MERGE_CATS-NEXT: imp {{.*}} -[MyBaseClass(Category01) cat01_InstanceMethod]
	MERGE_CATS-NEXT: name {{.*}} cat02_InstanceMethod
	MERGE_CATS-NEXT: types {{.*}} v16@0:8
	MERGE_CATS-NEXT: imp {{.*}} -[MyBaseClass(Category02) cat02_InstanceMethod]
	MERGE_CATS-NEXT: classMethods 0x0
	MERGE_CATS-NEXT: protocols 0x0
	MERGE_CATS-NEXT: instanceProperties 0x0

	#### Check merge categories disabled ###
	# Check that the merged category is not there
	NO_MERGE_CATS-NOT: __OBJC_$_CATEGORY_MyBaseClass(Category01\|Category02)

	# Check that the original categories are there
	NO_MERGE_CATS: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
	NO_MERGE_CATS: __OBJC_$_CATEGORY_MyBaseClass_$_Category02


	#### Check merge cateogires into base class is disabled ####
	NO_MERGE_INTO_BASE: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
	NO_MERGE_INTO_BASE: __OBJC_$_CATEGORY_MyBaseClass_$_Category02

	#### Check merge cateogires into base class is enabled and categories are merged into base class ####
	YES_MERGE_INTO_BASE-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category01
	YES_MERGE_INTO_BASE-NOT: __OBJC_$_CATEGORY_MyBaseClass_$_Category02

	YES_MERGE_INTO_BASE: _OBJC_CLASS_$_MyBaseClass
	YES_MERGE_INTO_BASE-NEXT: _OBJC_METACLASS_$_MyBaseClass
	YES_MERGE_INTO_BASE: baseMethods
	YES_MERGE_INTO_BASE-NEXT: entsize 12 (relative)
	YES_MERGE_INTO_BASE-NEXT: count 3
	YES_MERGE_INTO_BASE-NEXT: name {{.*}} cat01_InstanceMethod
	YES_MERGE_INTO_BASE-NEXT: types {{.*}} v16@0:8
	YES_MERGE_INTO_BASE-NEXT: imp {{.*}} -[MyBaseClass(Category01) cat01_InstanceMethod]
	YES_MERGE_INTO_BASE-NEXT: name {{.*}} cat02_InstanceMethod
	YES_MERGE_INTO_BASE-NEXT: types {{.*}} v16@0:8
	YES_MERGE_INTO_BASE-NEXT: imp {{.*}} -[MyBaseClass(Category02) cat02_InstanceMethod]
	YES_MERGE_INTO_BASE-NEXT: name {{.*}} baseInstanceMethod
	YES_MERGE_INTO_BASE-NEXT: types {{.*}} v16@0:8
	YES_MERGE_INTO_BASE-NEXT: imp {{.*}} -[MyBaseClass baseInstanceMethod]


	#### Check merge swift category into base class ###
	YES_MERGE_INTO_BASE_SWIFT: _OBJC_CLASS_$_MyBaseClass
	YES_MERGE_INTO_BASE_SWIFT-NEXT: _OBJC_METACLASS_$_MyBaseClass
	YES_MERGE_INTO_BASE_SWIFT: baseMethods
	YES_MERGE_INTO_BASE_SWIFT-NEXT: entsize 24
	YES_MERGE_INTO_BASE_SWIFT-NEXT: count 2
	YES_MERGE_INTO_BASE_SWIFT-NEXT: name {{.*}} swiftMethod
	YES_MERGE_INTO_BASE_SWIFT-NEXT: types {{.*}} v16@0:8
	YES_MERGE_INTO_BASE_SWIFT-NEXT: imp _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyFTo
	YES_MERGE_INTO_BASE_SWIFT-NEXT: name {{.*}} baseInstanceMethod
	YES_MERGE_INTO_BASE_SWIFT-NEXT: types {{.*}} v16@0:8
	YES_MERGE_INTO_BASE_SWIFT-NEXT: imp -[MyBaseClass baseInstanceMethod]


	#--- a64_fakedylib.s

	.section __DATA,__objc_data
	.globl _OBJC_CLASS_$_MyBaseClass
	_OBJC_CLASS_$_MyBaseClass:
	.quad 0

	#--- merge_cat_minimal.s

	; ================== Generated from ObjC: ==================
	; __attribute__((objc_root_class))
	; @interface MyBaseClass
	; - (void)baseInstanceMethod;
	; @end
	;
	; @interface MyBaseClass(Category01)
	; - (void)cat01_InstanceMethod;
	; @end
	;
	; @implementation MyBaseClass(Category01)
	; - (void)cat01_InstanceMethod {}
	; @end
	;
	; @interface MyBaseClass(Category02)
	; - (void)cat02_InstanceMethod;
	; @end
	;
	; @implementation MyBaseClass(Category02)
	; - (void)cat02_InstanceMethod {}
	; @end
	; ================== Generated from ObjC: ==================

	.section __TEXT,__text,regular,pure_instructions
	.p2align 2 ; -- Begin function -[MyBaseClass(Category01) cat01_InstanceMethod]
	"-[MyBaseClass(Category01) cat01_InstanceMethod]": ; @"\01-[MyBaseClass(Category01) cat01_InstanceMethod]"
	.cfi_startproc
	ret
	.cfi_endproc
	; -- End function
	.p2align 2 ; -- Begin function -[MyBaseClass(Category02) cat02_InstanceMethod]
	"-[MyBaseClass(Category02) cat02_InstanceMethod]": ; @"\01-[MyBaseClass(Category02) cat02_InstanceMethod]"
	.cfi_startproc
	ret
	.cfi_endproc
	; -- End function
	.section __TEXT,__objc_classname,cstring_literals
	l_OBJC_CLASS_NAME_: ; @OBJC_CLASS_NAME_
	.asciz "Category01"
	.section __TEXT,__objc_methname,cstring_literals
	l_OBJC_METH_VAR_NAME_: ; @OBJC_METH_VAR_NAME_
	.asciz "cat01_InstanceMethod"
	.section __TEXT,__objc_methtype,cstring_literals
	l_OBJC_METH_VAR_TYPE_: ; @OBJC_METH_VAR_TYPE_
	.asciz "v16@0:8"
	.section __DATA,__objc_const
	.p2align 3, 0x0 ; @"_OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category01"
	__OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category01:
	.long 24 ; 0x18
	.long 1 ; 0x1
	.quad l_OBJC_METH_VAR_NAME_
	.quad l_OBJC_METH_VAR_TYPE_
	.quad "-[MyBaseClass(Category01) cat01_InstanceMethod]"
	.p2align 3, 0x0 ; @"_OBJC_$_CATEGORY_MyBaseClass_$_Category01"
	__OBJC_$_CATEGORY_MyBaseClass_$_Category01:
	.quad l_OBJC_CLASS_NAME_
	.quad _OBJC_CLASS_$_MyBaseClass
	.quad __OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category01
	.quad 0
	.quad 0
	.quad 0
	.quad 0
	.long 64 ; 0x40
	.space 4
	.section __DATA,__objc_const
	l_OBJC_CLASS_NAME_.1: ; @OBJC_CLASS_NAME_.1
	.asciz "Category02"
	.section __TEXT,__objc_methname,cstring_literals
	l_OBJC_METH_VAR_NAME_.2: ; @OBJC_METH_VAR_NAME_.2
	.asciz "cat02_InstanceMethod"
	.section __DATA,__objc_const
	.p2align 3, 0x0 ; @"_OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category02"
	__OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category02:
	.long 24 ; 0x18
	.long 1 ; 0x1
	.quad l_OBJC_METH_VAR_NAME_.2
	.quad l_OBJC_METH_VAR_TYPE_
	.quad "-[MyBaseClass(Category02) cat02_InstanceMethod]"
	.p2align 3, 0x0 ; @"_OBJC_$_CATEGORY_MyBaseClass_$_Category02"
	__OBJC_$_CATEGORY_MyBaseClass_$_Category02:
	.quad l_OBJC_CLASS_NAME_.1
	.quad _OBJC_CLASS_$_MyBaseClass
	.quad __OBJC_$_CATEGORY_INSTANCE_METHODS_MyBaseClass_$_Category02
	.quad 0
	.quad 0
	.quad 0
	.quad 0
	.long 64 ; 0x40
	.space 4
	.section __DATA,__objc_catlist,regular,no_dead_strip
	.p2align 3, 0x0 ; @"OBJC_LABEL_CATEGORY_$"
	l_OBJC_LABEL_CATEGORY_$:
	.quad __OBJC_$_CATEGORY_MyBaseClass_$_Category01
	.quad __OBJC_$_CATEGORY_MyBaseClass_$_Category02
	.section __DATA,__objc_imageinfo,regular,no_dead_strip
	L_OBJC_IMAGE_INFO:
	.long 0
	.long 96
	.subsections_via_symbols

	.addrsig
	.addrsig_sym __OBJC_$_CATEGORY_MyBaseClass_$_Category01

	#--- merge_base_class_minimal.s
	; clang -c merge_base_class_minimal.mm -O3 -target arm64-apple-macos -arch arm64 -S -o merge_base_class_minimal.s
	; ================== Generated from ObjC: ==================
	; __attribute__((objc_root_class))
	; @interface MyBaseClass
	; - (void)baseInstanceMethod;
	; @end
	;
	; @implementation MyBaseClass
	; - (void)baseInstanceMethod {}
	; @end
	; ================== Generated from ObjC ==================
	.section __TEXT,__text,regular,pure_instructions
	.build_version macos, 11, 0
	.p2align 2
	"-[MyBaseClass baseInstanceMethod]":
	.cfi_startproc
	; %bb.0:
	ret
	.cfi_endproc
	.section __DATA,__objc_data
	.globl _OBJC_CLASS_$_MyBaseClass
	.p2align 3, 0x0
	_OBJC_CLASS_$_MyBaseClass:
	.quad _OBJC_METACLASS_$_MyBaseClass
	.quad 0
	.quad 0
	.quad 0
	.quad __OBJC_CLASS_RO_$_MyBaseClass
	.globl _OBJC_METACLASS_$_MyBaseClass
	.p2align 3, 0x0
	_OBJC_METACLASS_$_MyBaseClass:
	.quad _OBJC_METACLASS_$_MyBaseClass
	.quad _OBJC_CLASS_$_MyBaseClass
	.quad 0
	.quad 0
	.quad __OBJC_METACLASS_RO_$_MyBaseClass
	.section __TEXT,__objc_classname,cstring_literals
	l_OBJC_CLASS_NAME_:
	.asciz "MyBaseClass"
	.section __DATA,__objc_const
	.p2align 3, 0x0
	__OBJC_METACLASS_RO_$_MyBaseClass:
	.long 3
	.long 40
	.long 40
	.space 4
	.quad 0
	.quad l_OBJC_CLASS_NAME_
	.quad 0
	.quad 0
	.quad 0
	.quad 0
	.quad 0
	.section __TEXT,__objc_methname,cstring_literals
	l_OBJC_METH_VAR_NAME_:
	.asciz "baseInstanceMethod"
	.section __TEXT,__objc_methtype,cstring_literals
	l_OBJC_METH_VAR_TYPE_:
	.asciz "v16@0:8"
	.section __DATA,__objc_const
	.p2align 3, 0x0
	__OBJC_$_INSTANCE_METHODS_MyBaseClass:
	.long 24
	.long 1
	.quad l_OBJC_METH_VAR_NAME_
	.quad l_OBJC_METH_VAR_TYPE_
	.quad "-[MyBaseClass baseInstanceMethod]"
	.p2align 3, 0x0
	__OBJC_CLASS_RO_$_MyBaseClass:
	.long 2
	.long 0
	.long 0
	.space 4
	.quad 0
	.quad l_OBJC_CLASS_NAME_
	.quad __OBJC_$_INSTANCE_METHODS_MyBaseClass
	.quad 0
	.quad 0
	.quad 0
	.quad 0
	.section __DATA,__objc_classlist,regular,no_dead_strip
	.p2align 3, 0x0
	l_OBJC_LABEL_CLASS_$:
	.quad _OBJC_CLASS_$_MyBaseClass
	.section __DATA,__objc_imageinfo,regular,no_dead_strip
	L_OBJC_IMAGE_INFO:
	.long 0
	.long 64
	.subsections_via_symbols


	#--- MyBaseClassSwiftExtension.s
	; xcrun -sdk macosx swiftc -emit-assembly MyBaseClassSwiftExtension.swift -import-objc-header YourProject-Bridging-Header.h -o MyBaseClassSwiftExtension.s
	; ================== Generated from Swift: ==================
	; import Foundation
	; extension MyBaseClass {
	; @objc func swiftMethod() {
	; }
	; }
	; ================== Generated from Swift ===================
	.private_extern _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyF
	.globl _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyF
	.p2align 2
	_$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyF:
	.cfi_startproc
	mov w0, #0
	ret
	.cfi_endproc

	.p2align 2
	_$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyFTo:
	.cfi_startproc
	mov w0, #0
	ret
	.cfi_endproc

	.section __TEXT,__cstring,cstring_literals
	.p2align 4, 0x0
	l_.str.25.MyBaseClassSwiftExtension:
	.asciz "MyBaseClassSwiftExtension"

	.section __TEXT,__objc_methname,cstring_literals
	"L_selector_data(swiftMethod)":
	.asciz "swiftMethod"

	.section __TEXT,__cstring,cstring_literals
	"l_.str.7.v16@0:8":
	.asciz "v16@0:8"

	.section __DATA,__objc_data
	.p2align 3, 0x0
	__CATEGORY_INSTANCE_METHODS_MyBaseClass_$_MyBaseClassSwiftExtension:
	.long 24
	.long 1
	.quad "L_selector_data(swiftMethod)"
	.quad "l_.str.7.v16@0:8"
	.quad _$sSo11MyBaseClassC0abC14SwiftExtensionE11swiftMethodyyFTo

	.section __DATA,__objc_const
	.p2align 3, 0x0
	__CATEGORY_MyBaseClass_$_MyBaseClassSwiftExtension:
	.quad l_.str.25.MyBaseClassSwiftExtension
	.quad _OBJC_CLASS_$_MyBaseClass
	.quad __CATEGORY_INSTANCE_METHODS_MyBaseClass_$_MyBaseClassSwiftExtension
	.quad 0
	.quad 0
	.quad 0
	.quad 0
	.long 60
	.space 4

	.section __DATA,__objc_catlist,regular,no_dead_strip
	.p2align 3, 0x0
	_objc_categories:
	.quad __CATEGORY_MyBaseClass_$_MyBaseClassSwiftExtension

	.no_dead_strip _main
	.no_dead_strip l_entry_point

	.subsections_via_symbols