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llvm-mirror/test/CodeGen/WebAssembly/funcref-call.ll
Paulo Matos e8be0ee828 [WebAssembly] Implementation of global.get/set for reftypes in LLVM IR
Reland of 31859f896.

This change implements new DAG notes GLOBAL_GET/GLOBAL_SET, and
lowering methods for load and stores of reference types from IR
globals. Once the lowering creates the new nodes, tablegen pattern
matches those and converts them to Wasm global.get/set.

Reviewed By: tlively

Differential Revision: https://reviews.llvm.org/D104797
2021-07-22 22:07:24 +02:00

25 lines
739 B
LLVM

; RUN: llc < %s --mtriple=wasm32-unknown-unknown -asm-verbose=false -mattr=+reference-types | FileCheck %s
%func = type void ()
%funcref = type %func addrspace(20)* ;; addrspace 20 is nonintegral
define void @call_funcref(%funcref %ref) {
call addrspace(20) void %ref()
ret void
}
; CHECK: .tabletype __funcref_call_table, funcref, 1
; CHECK-LABEL: call_funcref:
; CHECK-NEXT: functype call_funcref (funcref) -> ()
; CHECK-NEXT: i32.const 0
; CHECK-NEXT: local.get 0
; CHECK-NEXT: table.set __funcref_call_table
; CHECK-NEXT: local.get 0
; CHECK-NEXT: call_indirect __funcref_call_table, () -> ()
; CHECK-NEXT: i32.const 0
; CHECK-NEXT: ref.null func
; CHECK-NEXT: table.set __funcref_call_table
; CHECK-NEXT: end_function