llvm-project/lld/test/wasm/duplicate-table-imports.s

76 lines
2.2 KiB
ArmAsm

# RUN: llvm-mc -mattr=+reference-types -triple=wasm32-unknown-unknown -filetype=obj -o %t.o %s
# RUN: wasm-ld --allow-undefined -o %t1.wasm %t.o
# RUN: obj2yaml %t1.wasm | FileCheck %s
.tabletype t1, funcref
.import_module t1, env
.import_name t1, t
.globl t1
# Same import module/name/type as `t1`, should be de-duped.
.tabletype t2, funcref
.import_module t2, env
.import_name t2, t
.globl t2
# Imported as an externref instead of funcref, so should not be de-duped.
.tabletype t3, externref
.import_module t3, env
.import_name t3, t
.globl t3
.globl _start
_start:
.functype _start () -> ()
# Read from `t1`
i32.const 0
table.get t1
drop
# Read from `t2`
i32.const 0
table.get t2
drop
# Read from `t3`
i32.const 0
table.get t3
drop
end_function
## XXX: the second imported table has index 1, not 0. I've verified by hand
## (with `wasm2wat`) that the resulting Wasm file is correct: `t3` does end up
## at index 1 and our `table.get` instructions are using the proper table index
## immediates. This is also asserted (less legibly) in the hexdump of the code
## body below. It looks like there's a bug in how `obj2yaml` disassembles
## multiple table imports.
# CHECK: - Type: IMPORT
# CHECK-NEXT: Imports:
# CHECK-NEXT: - Module: env
# CHECK-NEXT: Field: t
# CHECK-NEXT: Kind: TABLE
# CHECK-NEXT: Table:
# CHECK-NEXT: Index: 0
# CHECK-NEXT: ElemType: FUNCREF
# CHECK-NEXT: Limits:
# CHECK-NEXT: Minimum: 0x0
# CHECK-NEXT: - Module: env
# CHECK-NEXT: Field: t
# CHECK-NEXT: Kind: TABLE
# CHECK-NEXT: Table:
# CHECK-NEXT: Index: 0
# CHECK-NEXT: ElemType: EXTERNREF
# CHECK-NEXT: Limits:
# CHECK-NEXT: Minimum: 0x0
# CHECK-NEXT: - Type:
# CHECK: - Type: CODE
# CHECK-NEXT: Functions:
# CHECK-NEXT: - Index: 0
# CHECK-NEXT: Locals: []
# CHECK-NEXT: Body: 41002580808080001A41002580808080001A41002581808080001A0B
# CHECK-NEXT: - Type: