forked from OSchip/llvm-project
121 lines
4.7 KiB
LLVM
121 lines
4.7 KiB
LLVM
; RUN: llc -filetype=obj %s -o %t.o
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; RUN: wasm-ld --no-entry --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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target triple = "wasm32-unknown-unknown"
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declare extern_weak void @weakFunc1()
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declare extern_weak void @weakFunc2() ; same signature
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declare extern_weak void @weakFunc3(i32 %arg) ; different
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declare extern_weak void @weakFunc4() ; should be GC'd as not called
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; CHECK-GC: removing unused section {{.*}}:(weakFunc4)
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define i32 @callWeakFuncs() {
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call void @weakFunc1()
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call void @weakFunc2()
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call void @weakFunc3(i32 2)
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%addr1 = ptrtoint void ()* @weakFunc1 to i32
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%addr4 = ptrtoint void ()* @weakFunc4 to i32
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%sum = add i32 %addr1, %addr4
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ret i32 %sum
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}
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; CHECK: --- !WASM
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; CHECK-NEXT: FileHeader:
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; CHECK-NEXT: Version: 0x00000001
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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: ReturnType: NORESULT
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; CHECK-NEXT: ParamTypes:
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: ReturnType: NORESULT
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; CHECK-NEXT: ParamTypes:
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; CHECK-NEXT: - I32
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; CHECK-NEXT: - Index: 2
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; CHECK-NEXT: ReturnType: I32
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; CHECK-NEXT: ParamTypes:
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; CHECK-NEXT: - Type: FUNCTION
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; CHECK-NEXT: FunctionTypes: [ 0, 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: - ElemType: ANYFUNC
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; CHECK-NEXT: Limits:
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; CHECK-NEXT: Flags: [ HAS_MAX ]
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; CHECK-NEXT: Initial: 0x00000001
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; CHECK-NEXT: Maximum: 0x00000001
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; CHECK-NEXT: - Type: MEMORY
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; CHECK-NEXT: Memories:
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; CHECK-NEXT: - Initial: 0x00000002
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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: - Index: 1
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; CHECK-NEXT: Type: I32
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; CHECK-NEXT: Mutable: false
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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: - Index: 2
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; CHECK-NEXT: Type: I32
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; CHECK-NEXT: Mutable: false
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; CHECK-NEXT: InitExpr:
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; CHECK-NEXT: Opcode: I32_CONST
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; CHECK-NEXT: Value: 1024
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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: __heap_base
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; CHECK-NEXT: Kind: GLOBAL
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; CHECK-NEXT: Index: 1
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; CHECK-NEXT: - Name: __data_end
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; CHECK-NEXT: Kind: GLOBAL
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; CHECK-NEXT: Index: 2
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; CHECK-NEXT: - Name: callWeakFuncs
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Index: 4
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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: 0B
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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: 000B
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; CHECK-NEXT: - Index: 4
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; CHECK-NEXT: Locals:
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; CHECK-NEXT: Body: 10818080800010828080800041021083808080004180808080004180808080006A0B
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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: __wasm_call_ctors
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: Name: undefined function weakFunc1
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; CHECK-NEXT: - Index: 2
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; CHECK-NEXT: Name: undefined function weakFunc2
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; CHECK-NEXT: - Index: 3
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; CHECK-NEXT: Name: undefined function weakFunc3
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; CHECK-NEXT: - Index: 4
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; CHECK-NEXT: Name: callWeakFuncs
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; CHECK-NEXT: ...
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