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llvm-mirror/test/MC/WebAssembly/comdat.ll
Andy Wingo 0ac187d2cf [WebAssembly] Rename WasmLimits::Initial to ::Minimum. NFC.
This patch renames the "Initial" member of WasmLimits to the name used
in the spec, "Minimum".

In the core WebAssembly specification, the Limits data type has one
required "min" member and one optional "max" member, indicating the
minimum required size of the corresponding table or memory, and the
maximum size, if any.

Although the WebAssembly spec does instantiate locally-defined tables
and memories with the initial size being equal to the minimum size, it
can't impose such a requirement for imports.  It doesn't make sense to
require an initial size for a memory import, for example.  The compiler
can only sensibly express the minimum and maximum sizes.

See
https://github.com/WebAssembly/js-types/blob/master/proposals/js-types/Overview.md#naming-of-size-limits
for a related discussion that agrees that the right name of "initial" is
"minimum" when querying the type of a table or memory from JavaScript.
(Of course it still makes sense for JS to speak in terms of an initial
size when it explicitly instantiates memories and tables.)

Differential Revision: https://reviews.llvm.org/D99186
2021-03-24 09:10:11 +01:00

139 lines
5.3 KiB
LLVM

; RUN: llc -filetype=obj %s -o - | obj2yaml | FileCheck %s
; RUN: llc -filetype=asm %s -asm-verbose=false -o - | FileCheck --check-prefix=ASM %s
; RUN: llc -filetype=asm %s -o - | llvm-mc -triple=wasm32 -filetype=obj -o - | obj2yaml | FileCheck %s
; These RUN lines verify the ll direct-to-object path, the ll->asm path, and the
; object output via asm.
target triple = "wasm32-unknown-unknown"
; Import a function just so we can check the index arithmetic for
; WASM_COMDAT_FUNCTION entries is performed correctly
declare i32 @funcImport()
define i32 @callImport() {
entry:
%call = call i32 @funcImport()
ret i32 %call
}
; Function in its own COMDAT
$basicInlineFn = comdat any
define linkonce_odr i32 @basicInlineFn() #1 comdat {
ret i32 0
}
; Global, data, and function in same COMDAT
$sharedComdat = comdat any
@constantData = weak_odr constant [3 x i8] c"abc", comdat($sharedComdat)
define linkonce_odr i32 @sharedFn() #1 comdat($sharedComdat) {
ret i32 0
}
; CHECK: Sections:
; CHECK-NEXT: - Type: TYPE
; CHECK-NEXT: Signatures:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: ParamTypes: []
; CHECK-NEXT: ReturnTypes:
; CHECK-NEXT: - I32
; CHECK-NEXT: - Type: IMPORT
; CHECK-NEXT: Imports:
; CHECK-NEXT: - Module: env
; CHECK-NEXT: Field: __linear_memory
; CHECK-NEXT: Kind: MEMORY
; CHECK-NEXT: Memory:
; CHECK-NEXT: Minimum: 0x1
; CHECK-NEXT: - Module: env
; CHECK-NEXT: Field: funcImport
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: SigIndex: 0
; CHECK-NEXT: - Type: FUNCTION
; CHECK-NEXT: FunctionTypes: [ 0, 0, 0 ]
; CHECK-NEXT: - Type: DATACOUNT
; CHECK-NEXT: Count: 1
; CHECK-NEXT: - Type: CODE
; CHECK-NEXT: Relocations:
; CHECK-NEXT: - Type: R_WASM_FUNCTION_INDEX_LEB
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Offset: 0x4
; CHECK-NEXT: Functions:
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 1080808080000B
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 41000B
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 41000B
; CHECK-NEXT: - Type: DATA
; CHECK-NEXT: Segments:
; CHECK-NEXT: - SectionOffset: 6
; CHECK-NEXT: InitFlags: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: Content: '616263'
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: Version: 2
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: callImport
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Function: 1
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: funcImport
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 0
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: basicInlineFn
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: Function: 2
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: sharedFn
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: Function: 3
; CHECK-NEXT: - Index: 4
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: constantData
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 3
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .rodata.constantData
; CHECK-NEXT: Alignment: 0
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Comdats:
; CHECK-NEXT: Name: basicInlineFn
; CHECK-NEXT: Entries:
; CHECK-NEXT: - Kind: FUNCTION
; CHECK-NEXT: Index: 2
; CHECK-NEXT: Name: sharedComdat
; CHECK-NEXT: Entries:
; CHECK-NEXT: - Kind: FUNCTION
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Kind: DATA
; CHECK-NEXT: Index: 0
; CHECK-NEXT: ...
; ASM: .section .text.basicInlineFn,"G",@,basicInlineFn,comdat
; ASM-NEXT: .weak basicInlineFn
; ASM-NEXT: .type basicInlineFn,@function
; ASM-NEXT: basicInlineFn:
; ASM: .section .text.sharedFn,"G",@,sharedComdat,comdat
; ASM-NEXT: .weak sharedFn
; ASM-NEXT: .type sharedFn,@function
; ASM-NEXT: sharedFn:
; ASM: .type constantData,@object
; ASM-NEXT: .section .rodata.constantData,"G",@,sharedComdat,comdat
; ASM-NEXT: .weak constantData
; ASM-NEXT: constantData: