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llvm-project/lld/test/wasm/growable-table.test

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[lld][WebAssembly] Convert some lld tests to assembly When we originally wrote these tests we didn't have a stable and fleshed out assembly format. Now we do so we should prefer that over llvm ir for lld tests to avoid including more part of llvm than necessary in order to run the test. This change converts just 30 out of about 130 test files. More to come when I have some more time. Differential Revision: https://reviews.llvm.org/D80361
2020-05-21 12:35:18 +08:00
# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %p/Inputs/start.s -o %t.start.o
[lld][WebAssembly] Support for growable tables Adds --growable-table flag to handle building wasm modules with tables that can grow. Wasm tables that we use to store function pointers. In order to add functions to that table at runtime, we need to either preallocate space, or grow the table. In order to specify a table with no maximum size, we need some flag to handle that case, separately from a potential --max-table-size= flag. Note that the number of elements in the table isn't knowable until link-time, so it's unclear if we will want a --max-table-size= flag in the future. llvm-svn: 370127
2019-08-28 06:58:21 +08:00
# RUN: wasm-ld --export-table --growable-table -o %t.wasm %t.start.o
# RUN: obj2yaml %t.wasm | FileCheck %s
# Verify the --growable-table flag creates a growable table
# CHECK: - Type: TABLE
# CHECK-NEXT: Tables:
# CHECK-NEXT: - ElemType: FUNCREF
# CHECK-NEXT: Limits:
# CHECK-NEXT: Initial: 0x00000001
# CHECK-NEXT: - Type:
# CHECK: - Type: EXPORT
# CHECK-NEXT: Exports:
# CHECK: - Name: __indirect_function_table
# CHECK-NEXT: Kind: TABLE
# CHECK-NEXT: Index: 0