;; RUN: wasm-merge --help | filecheck %s
;; CHECK: ================================================================================
;; CHECK-NEXT: wasm-merge INFILE1 NAME1 INFILE2 NAME2 [..]
;; CHECK-NEXT:
;; CHECK-NEXT: Merge wasm files into one.
;; CHECK-NEXT:
;; CHECK-NEXT: For example,
;; CHECK-NEXT:
;; CHECK-NEXT:   wasm-merge foo.wasm foo bar.wasm bar -o merged.wasm
;; CHECK-NEXT:
;; CHECK-NEXT: will read foo.wasm and bar.wasm, with names 'foo' and 'bar' respectively, so if
;; CHECK-NEXT: the second imports from 'foo', we will see that as an import from the first
;; CHECK-NEXT: module after the merge. The merged output will be written to merged.wasm.
;; CHECK-NEXT:
;; CHECK-NEXT: Note that filenames and modules names are interleaved (which is hopefully less
;; CHECK-NEXT: confusing).
;; CHECK-NEXT:
;; CHECK-NEXT: Input source maps can be specified by adding an -ism option right after the
;; CHECK-NEXT: module name:
;; CHECK-NEXT:
;; CHECK-NEXT:   wasm-merge foo.wasm foo -ism foo.wasm.map ...
;; CHECK-NEXT: ================================================================================
;; CHECK-NEXT:
;; CHECK-NEXT:
;; CHECK-NEXT: wasm-merge options:
;; CHECK-NEXT: -------------------
;; CHECK-NEXT:
;; CHECK-NEXT:   --output,-o                          Output file
;; CHECK-NEXT:
;; CHECK-NEXT:   --input-source-map,-ism              Consume source maps from the specified
;; CHECK-NEXT:                                        files
;; CHECK-NEXT:
;; CHECK-NEXT:   --output-source-map,-osm             Emit source map to the specified file
;; CHECK-NEXT:
;; CHECK-NEXT:   --output-source-map-url,-osu         Emit specified string as source map URL
;; CHECK-NEXT:
;; CHECK-NEXT:   --output-manifest                    Write a wasm-split manifest to the
;; CHECK-NEXT:                                        specified file. This manifest can be
;; CHECK-NEXT:                                        given to wasm-split to split the merged
;; CHECK-NEXT:                                        module along the lines of the original
;; CHECK-NEXT:                                        modules. Implies --debuginfo to preserve
;; CHECK-NEXT:                                        function names in the output module.
;; CHECK-NEXT:
;; CHECK-NEXT:   --rename-export-conflicts,-rec       Rename exports to avoid conflicts (rather
;; CHECK-NEXT:                                        than error)
;; CHECK-NEXT:
;; CHECK-NEXT:   --skip-export-conflicts,-sec         Skip exports that conflict with previous
;; CHECK-NEXT:                                        ones
;; CHECK-NEXT:
;; CHECK-NEXT:   --emit-text,-S                       Emit text instead of binary for the
;; CHECK-NEXT:                                        output file
;; CHECK-NEXT:
;; CHECK-NEXT:   --debuginfo,-g                       Emit names section and debug info
;; CHECK-NEXT:
;; CHECK-NEXT:
;; CHECK-NEXT: Tool options:
;; CHECK-NEXT: -------------
;; CHECK-NEXT:
;; CHECK-NEXT:   --mvp-features,-mvp                  Disable all non-MVP features
;; CHECK-NEXT:
;; CHECK-NEXT:   --all-features,-all                  Enable all features
;; CHECK-NEXT:
;; CHECK-NEXT:   --detect-features                    (deprecated - this flag does nothing)
;; CHECK-NEXT:
;; CHECK-NEXT:   --quiet,-q                           Emit less verbose output and hide trivial
;; CHECK-NEXT:                                        warnings.
;; CHECK-NEXT:
;; CHECK-NEXT:   --experimental-poppy                 Parse wast files as Poppy IR for testing
;; CHECK-NEXT:                                        purposes.
;; CHECK-NEXT:
;; CHECK-NEXT:   --emit-module-names                  Emit module names, even if not emitting
;; CHECK-NEXT:                                        the rest of the names section
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-sign-ext                    Enable sign extension operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-sign-ext                   Disable sign extension operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-threads                     Enable atomic operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-threads                    Disable atomic operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-mutable-globals             Enable mutable globals
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-mutable-globals            Disable mutable globals
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-nontrapping-float-to-int    Enable nontrapping float-to-int
;; CHECK-NEXT:                                        operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-nontrapping-float-to-int   Disable nontrapping float-to-int
;; CHECK-NEXT:                                        operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-simd                        Enable SIMD operations and types
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-simd                       Disable SIMD operations and types
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-bulk-memory                 Enable bulk memory operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-bulk-memory                Disable bulk memory operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-bulk-memory-opt             Enable memory.copy and memory.fill
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-bulk-memory-opt            Disable memory.copy and memory.fill
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-call-indirect-overlong      Enable LEB encoding of call-indirect
;; CHECK-NEXT:                                        (Ignored for compatibility as it has no
;; CHECK-NEXT:                                        effect on Binaryen)
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-call-indirect-overlong     Disable LEB encoding of call-indirect
;; CHECK-NEXT:                                        (Ignored for compatibility as it has no
;; CHECK-NEXT:                                        effect on Binaryen)
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-exception-handling          Enable exception handling operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-exception-handling         Disable exception handling operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-tail-call                   Enable tail call operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-tail-call                  Disable tail call operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-reference-types             Enable reference types
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-reference-types            Disable reference types
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-multivalue                  Enable multivalue functions
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-multivalue                 Disable multivalue functions
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-gc                          Enable garbage collection
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-gc                         Disable garbage collection
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-memory64                    Enable memory64
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-memory64                   Disable memory64
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-relaxed-simd                Enable relaxed SIMD
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-relaxed-simd               Disable relaxed SIMD
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-extended-const              Enable extended const expressions
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-extended-const             Disable extended const expressions
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-strings                     Enable strings
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-strings                    Disable strings
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-multimemory                 Enable multimemory
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-multimemory                Disable multimemory
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-stack-switching             Enable stack switching
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-stack-switching            Disable stack switching
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-shared-everything           Enable shared-everything threads
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-shared-everything          Disable shared-everything threads
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-fp16                        Enable float 16 operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-fp16                       Disable float 16 operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-custom-descriptors          Enable custom descriptors (RTTs) and
;; CHECK-NEXT:                                        exact references
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-custom-descriptors         Disable custom descriptors (RTTs) and
;; CHECK-NEXT:                                        exact references
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-multibyte                   Enable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-multibyte                  Disable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-relaxed-atomics             Enable acquire/release atomic memory
;; CHECK-NEXT:                                        operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-relaxed-atomics            Disable acquire/release atomic memory
;; CHECK-NEXT:                                        operations
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-custom-page-sizes           Enable custom page sizes
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-custom-page-sizes          Disable custom page sizes
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-wide-arithmetic             Enable wide arithmetic
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-wide-arithmetic            Disable wide arithmetic
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-compact-imports             Enable compact import section
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-compact-imports            Disable compact import section
;; CHECK-NEXT:
;; CHECK-NEXT:   --enable-typed-function-references   Deprecated compatibility flag
;; CHECK-NEXT:
;; CHECK-NEXT:   --disable-typed-function-references  Deprecated compatibility flag
;; CHECK-NEXT:
;; CHECK-NEXT:   --no-validation,-n                   Disables validation, assumes inputs are
;; CHECK-NEXT:                                        correct
;; CHECK-NEXT:
;; CHECK-NEXT:   --pass-arg,-pa                       An argument passed along to optimization
;; CHECK-NEXT:                                        passes being run. Must be in the form
;; CHECK-NEXT:                                        KEY@VALUE.  If KEY is the name of a pass
;; CHECK-NEXT:                                        then it applies to the closest instance
;; CHECK-NEXT:                                        of that pass before us. If KEY is not the
;; CHECK-NEXT:                                        name of a pass then it is a global option
;; CHECK-NEXT:                                        that applies to all pass instances that
;; CHECK-NEXT:                                        read it.
;; CHECK-NEXT:
;; CHECK-NEXT:   --closed-world,-cw                   Assume code outside of the module does
;; CHECK-NEXT:                                        not inspect or interact with GC and
;; CHECK-NEXT:                                        function references, even if they are
;; CHECK-NEXT:                                        passed out. The outside may hold on to
;; CHECK-NEXT:                                        them and pass them back in, but not
;; CHECK-NEXT:                                        inspect their contents or call them.
;; CHECK-NEXT:
;; CHECK-NEXT:   --preserve-type-order                Preserve the order of types from the
;; CHECK-NEXT:                                        input (useful for debugging and testing)
;; CHECK-NEXT:
;; CHECK-NEXT:   --generate-stack-ir                  generate StackIR during writing
;; CHECK-NEXT:
;; CHECK-NEXT:   --optimize-stack-ir                  optimize StackIR during writing
;; CHECK-NEXT:
;; CHECK-NEXT:   --print-stack-ir                     print StackIR during writing
;; CHECK-NEXT:
;; CHECK-NEXT:
;; CHECK-NEXT: General options:
;; CHECK-NEXT: ----------------
;; CHECK-NEXT:
;; CHECK-NEXT:   --version                            Output version information and exit
;; CHECK-NEXT:
;; CHECK-NEXT:   --help,-h                            Show this help message and exit
;; CHECK-NEXT:
;; CHECK-NEXT:   --debug,-d                           Print debug information to stderr
;; CHECK-NEXT:
