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llvm-mirror/test/Object/wasm-relocs-and-producers.yaml
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

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1.7 KiB
YAML

# RUN: yaml2obj %s | llvm-objdump -s - | FileCheck %s
# This is a regression test for an issue with the section order
# checker being overly strict. yaml2obj places the relocations last,
# but the section order checker previously checked that relocations
# came before the producers section, which would cause this test to
# fail.
# CHECK: Contents of section producers:
# CHECK: Contents of section reloc.CODE:
--- !WASM
FileHeader:
Version: 0x00000001
Sections:
- Type: TYPE
Signatures:
- Index: 0
ParamTypes: []
ReturnTypes: []
- Type: IMPORT
Imports:
- Module: env
Field: __linear_memory
Kind: MEMORY
Memory:
Minimum: 0x00000000
- Module: env
Field: __indirect_function_table
Kind: TABLE
Table:
Index: 0
ElemType: FUNCREF
Limits:
Minimum: 0x00000000
- Type: FUNCTION
FunctionTypes: [ 0 ]
- Type: CODE
Relocations:
- Type: R_WASM_FUNCTION_INDEX_LEB
Index: 0
Offset: 0x00000004
Functions:
- Index: 0
Locals: []
Body: 1080808080000B
- Type: CUSTOM
Name: linking
Version: 2
SymbolTable:
- Index: 0
Kind: FUNCTION
Name: foo
Flags: [ VISIBILITY_HIDDEN ]
Function: 0
- Type: CUSTOM
Name: producers
Tools:
- Name: clang
Version: 9.0.0
...