fef8de66a6
Summary: This ensures that object files will continue to validate as WebAssembly modules in the presence of bulk memory operations. Engines that don't support bulk memory operations will not recognize the DataCount section and will report validation errors, but that's ok because object files aren't supposed to be run directly anyway. Reviewers: aheejin, dschuff, sbc100 Subscribers: jgravelle-google, hiraditya, sunfish, rupprecht, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60623 llvm-svn: 358315
125 lines
4.7 KiB
LLVM
125 lines
4.7 KiB
LLVM
; RUN: llc -filetype=obj %s -o - | obj2yaml | FileCheck %s
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target triple = "wasm32-unknown-unknown"
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; Import a function just so we can check the index arithmetic for
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; WASM_COMDAT_FUNCTION entries is performed correctly
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declare i32 @funcImport()
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define i32 @callImport() {
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entry:
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%call = call i32 @funcImport()
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ret i32 %call
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}
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; Function in its own COMDAT
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$basicInlineFn = comdat any
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define linkonce_odr i32 @basicInlineFn() #1 comdat {
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ret i32 0
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}
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; Global, data, and function in same COMDAT
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$sharedComdat = comdat any
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@constantData = weak_odr constant [3 x i8] c"abc", comdat($sharedComdat)
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define linkonce_odr i32 @sharedFn() #1 comdat($sharedComdat) {
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ret i32 0
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}
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; CHECK: 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: I32
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; CHECK-NEXT: ParamTypes:
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; CHECK-NEXT: - Type: IMPORT
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; CHECK-NEXT: Imports:
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; CHECK-NEXT: - Module: env
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; CHECK-NEXT: Field: __linear_memory
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; CHECK-NEXT: Kind: MEMORY
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; CHECK-NEXT: Memory:
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; CHECK-NEXT: Initial: 0x00000001
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; CHECK-NEXT: - Module: env
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; CHECK-NEXT: Field: __indirect_function_table
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; CHECK-NEXT: Kind: TABLE
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; CHECK-NEXT: Table:
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; CHECK-NEXT: ElemType: FUNCREF
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; CHECK-NEXT: Limits:
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; CHECK-NEXT: Initial: 0x00000000
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; CHECK-NEXT: - Module: env
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; CHECK-NEXT: Field: funcImport
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: SigIndex: 0
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; CHECK-NEXT: - Type: FUNCTION
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; CHECK-NEXT: FunctionTypes: [ 0, 0, 0 ]
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; CHECK-NEXT: - Type: DATACOUNT
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; CHECK-NEXT: Count: 1
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; CHECK-NEXT: - Type: CODE
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; CHECK-NEXT: Relocations:
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; CHECK-NEXT: - Type: R_WASM_FUNCTION_INDEX_LEB
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; CHECK-NEXT: Index: 1
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; CHECK-NEXT: Offset: 0x00000004
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; CHECK-NEXT: Functions:
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: Locals:
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; CHECK-NEXT: Body: 1080808080000B
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; CHECK-NEXT: - Index: 2
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; CHECK-NEXT: Locals:
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; CHECK-NEXT: Body: 41000B
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; CHECK-NEXT: - Index: 3
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; CHECK-NEXT: Locals:
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; CHECK-NEXT: Body: 41000B
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; CHECK-NEXT: - Type: DATA
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; CHECK-NEXT: Segments:
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; CHECK-NEXT: - SectionOffset: 6
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; CHECK-NEXT: InitFlags: 0
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; CHECK-NEXT: Offset:
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; CHECK-NEXT: Opcode: I32_CONST
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; CHECK-NEXT: Value: 0
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; CHECK-NEXT: Content: '616263'
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; CHECK-NEXT: - Type: CUSTOM
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; CHECK-NEXT: Name: linking
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; CHECK-NEXT: Version: 2
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; CHECK-NEXT: SymbolTable:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Name: callImport
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; CHECK-NEXT: Flags: [ ]
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; CHECK-NEXT: Function: 1
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Name: funcImport
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; CHECK-NEXT: Flags: [ UNDEFINED ]
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; CHECK-NEXT: Function: 0
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; CHECK-NEXT: - Index: 2
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Name: basicInlineFn
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; CHECK-NEXT: Flags: [ BINDING_WEAK ]
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; CHECK-NEXT: Function: 2
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; CHECK-NEXT: - Index: 3
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Name: sharedFn
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; CHECK-NEXT: Flags: [ BINDING_WEAK ]
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; CHECK-NEXT: Function: 3
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; CHECK-NEXT: - Index: 4
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; CHECK-NEXT: Kind: DATA
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; CHECK-NEXT: Name: constantData
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; CHECK-NEXT: Flags: [ BINDING_WEAK ]
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; CHECK-NEXT: Segment: 0
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; CHECK-NEXT: Size: 3
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; CHECK-NEXT: SegmentInfo:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: Name: .rodata.constantData
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; CHECK-NEXT: Alignment: 0
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; CHECK-NEXT: Flags: [ ]
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; CHECK-NEXT: Comdats:
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; CHECK-NEXT: Name: basicInlineFn
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; CHECK-NEXT: Entries:
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; CHECK-NEXT: - Kind: FUNCTION
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; CHECK-NEXT: Index: 2
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; CHECK-NEXT: Name: sharedComdat
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; CHECK-NEXT: Entries:
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; CHECK-NEXT: - Kind: FUNCTION
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; CHECK-NEXT: Index: 3
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; CHECK-NEXT: - Kind: DATA
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; CHECK-NEXT: Index: 0
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; CHECK-NEXT: ...
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