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109 lines
3.8 KiB
109 lines
3.8 KiB
# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
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# RUN: wasm-ld --entry=callWeakFuncs --print-gc-sections %t.o \
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# RUN: -o %t.wasm 2>&1 | FileCheck -check-prefix=CHECK-GC %s
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# RUN: obj2yaml %t.wasm | FileCheck %s
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# Check that calling an undefined weak function generates an appropriate stub
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# that will fail at runtime with "unreachable".
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.globl callWeakFuncs
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callWeakFuncs:
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.functype callWeakFuncs () -> (i32)
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call weakFunc1
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call weakFunc2
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i32.const 2
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call weakFunc3
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i32.const weakFunc1
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i32.const weakFunc4
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i32.add
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end_function
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.weak weakFunc1
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.weak weakFunc2
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.weak weakFunc3
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.weak weakFunc4
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.functype weakFunc1 () -> ()
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.functype weakFunc2 () -> ()
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.functype weakFunc3 (i32) -> ()
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.functype weakFunc4 () -> ()
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# CHECK-GC: removing unused section {{.*}}:(weakFunc4)
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# CHECK: --- !WASM
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# CHECK-NEXT: FileHeader:
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# CHECK-NEXT: Version: 0x1
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# CHECK-NEXT: Sections:
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# CHECK-NEXT: - Type: TYPE
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# CHECK-NEXT: Signatures:
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# CHECK-NEXT: - Index: 0
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# CHECK-NEXT: ParamTypes:
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# CHECK-NEXT: ReturnTypes: []
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# CHECK-NEXT: - Index: 1
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# CHECK-NEXT: ParamTypes:
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# CHECK-NEXT: - I32
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# CHECK-NEXT: ReturnTypes: []
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# CHECK-NEXT: - Index: 2
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# CHECK-NEXT: ParamTypes:
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# CHECK-NEXT: ReturnTypes:
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# CHECK-NEXT: - I32
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# CHECK-NEXT: - Type: FUNCTION
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# CHECK-NEXT: FunctionTypes: [ 0, 0, 1, 2 ]
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# CHECK-NEXT: - Type: TABLE
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# CHECK-NEXT: Tables:
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# CHECK-NEXT: - Index: 0
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# CHECK-NEXT: ElemType: FUNCREF
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# CHECK-NEXT: Limits:
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# CHECK-NEXT: Flags: [ HAS_MAX ]
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# CHECK-NEXT: Initial: 0x1
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# CHECK-NEXT: Maximum: 0x1
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# CHECK-NEXT: - Type: MEMORY
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# CHECK-NEXT: Memories:
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# CHECK-NEXT: - Initial: 0x2
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# CHECK-NEXT: - Type: GLOBAL
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# CHECK-NEXT: Globals:
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# CHECK-NEXT: - Index: 0
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# CHECK-NEXT: Type: I32
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# CHECK-NEXT: Mutable: true
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# CHECK-NEXT: InitExpr:
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# CHECK-NEXT: Opcode: I32_CONST
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# CHECK-NEXT: Value: 66560
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# CHECK-NEXT: - Type: EXPORT
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# CHECK-NEXT: Exports:
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# CHECK-NEXT: - Name: memory
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# CHECK-NEXT: Kind: MEMORY
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# CHECK-NEXT: Index: 0
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# CHECK-NEXT: - Name: callWeakFuncs
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# CHECK-NEXT: Kind: FUNCTION
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# CHECK-NEXT: Index: 3
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# CHECK-NEXT: - Type: CODE
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# CHECK-NEXT: Functions:
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# CHECK-NEXT: - Index: 0
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# CHECK-NEXT: Locals:
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# CHECK-NEXT: Body: 000B
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# CHECK-NEXT: - Index: 1
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# CHECK-NEXT: Locals:
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# CHECK-NEXT: Body: 000B
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# CHECK-NEXT: - Index: 2
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# CHECK-NEXT: Locals:
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# CHECK-NEXT: Body: 000B
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# CHECK-NEXT: - Index: 3
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# CHECK-NEXT: Locals:
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# CHECK-NEXT: Body: 10808080800010818080800041021082808080004180808080004180808080006A0B
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# CHECK-NEXT: - Type: CUSTOM
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# CHECK-NEXT: Name: name
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# CHECK-NEXT: FunctionNames:
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# CHECK-NEXT: - Index: 0
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# CHECK-NEXT: Name: 'undefined_weak:weakFunc1'
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# CHECK-NEXT: - Index: 1
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# CHECK-NEXT: Name: 'undefined_weak:weakFunc2'
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# CHECK-NEXT: - Index: 2
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# CHECK-NEXT: Name: 'undefined_weak:weakFunc3'
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# CHECK-NEXT: - Index: 3
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# CHECK-NEXT: Name: callWeakFuncs
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# CHECK-NEXT: GlobalNames:
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# CHECK-NEXT: - Index: 0
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# CHECK-NEXT: Name: __stack_pointer
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# CHECK-NEXT: ...
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