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; RUN: llc -filetype=obj %s -o %t.o
; RUN: wasm-ld -print-gc-sections -o %t1.wasm %t.o | FileCheck %s -check-prefix=PRINT-GC
; PRINT-GC: removing unused section {{.*}}:(unused_function)
; PRINT-GC-NOT: removing unused section {{.*}}:(used_function)
; PRINT-GC: removing unused section {{.*}}:(.data.unused_data)
; PRINT-GC-NOT: removing unused section {{.*}}:(.data.used_data)
target triple = "wasm32-unknown-unknown-wasm"
@unused_data = hidden global i64 1, align 4
@used_data = hidden global i32 2, align 4
define hidden i64 @unused_function() {
%1 = load i64, i64* @unused_data, align 4
ret i64 %1
}
define hidden i32 @used_function() {
%1 = load i32, i32* @used_data, align 4
ret i32 %1
}
define hidden void @_start() {
entry:
call i32 @used_function()
ret void
}
; RUN: obj2yaml %t1.wasm | FileCheck %s
; CHECK: - Type: TYPE
; CHECK-NEXT: Signatures:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: ReturnType: NORESULT
; CHECK-NEXT: ParamTypes:
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: ReturnType: I32
; CHECK-NEXT: ParamTypes:
; CHECK-NEXT: - Type: FUNCTION
; CHECK: - Type: DATA
; CHECK-NEXT: Segments:
; CHECK-NEXT: - SectionOffset: 7
; CHECK-NEXT: MemoryIndex: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 1024
; CHECK-NEXT: Content: '02000000'
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: name
; CHECK-NEXT: FunctionNames:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: __wasm_call_ctors
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Name: used_function
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Name: _start
; CHECK-NEXT: ...
; RUN: wasm-ld -print-gc-sections --no-gc-sections -o %t1.no-gc.wasm %t.o
; RUN: obj2yaml %t1.no-gc.wasm | FileCheck %s -check-prefix=NO-GC
; NO-GC: - Type: TYPE
; NO-GC-NEXT: Signatures:
; NO-GC-NEXT: - Index: 0
; NO-GC-NEXT: ReturnType: NORESULT
; NO-GC-NEXT: ParamTypes:
; NO-GC-NEXT: - Index: 1
; NO-GC-NEXT: ReturnType: I64
; NO-GC-NEXT: ParamTypes:
; NO-GC-NEXT: - Index: 2
; NO-GC-NEXT: ReturnType: I32
; NO-GC-NEXT: ParamTypes:
; NO-GC-NEXT: - Type: FUNCTION
; NO-GC: - Type: DATA
; NO-GC-NEXT: Segments:
; NO-GC-NEXT: - SectionOffset: 7
; NO-GC-NEXT: MemoryIndex: 0
; NO-GC-NEXT: Offset:
; NO-GC-NEXT: Opcode: I32_CONST
; NO-GC-NEXT: Value: 1024
; NO-GC-NEXT: Content: '010000000000000002000000'
; NO-GC-NEXT: - Type: CUSTOM
; NO-GC-NEXT: Name: name
; NO-GC-NEXT: FunctionNames:
; NO-GC-NEXT: - Index: 0
; NO-GC-NEXT: Name: __wasm_call_ctors
; NO-GC-NEXT: - Index: 1
; NO-GC-NEXT: Name: unused_function
; NO-GC-NEXT: - Index: 2
; NO-GC-NEXT: Name: used_function
; NO-GC-NEXT: - Index: 3
; NO-GC-NEXT: Name: _start
; NO-GC-NEXT: ...
; RUN: not wasm-ld --gc-sections --relocatable -o %t1.no-gc.wasm %t.o 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR
; CHECK-ERROR: error: -r and --gc-sections may not be used together
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