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This patch introduces a new type __externref_t that denotes a WebAssembly opaque reference type. It also implements builtin __builtin_wasm_ref_null_extern(), that returns a null value of __externref_t. This lays the ground work for further builtins and reference types. Reviewed By: aaron.ballman Differential Revision: https://reviews.llvm.org/D122215
19 lines
684 B
C
19 lines
684 B
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// RUN: %clang_cc1 -triple wasm32-unknown-unknown -target-feature +reference-types -o - -emit-llvm %s | FileCheck %s
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typedef __externref_t externref_t;
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void helper(externref_t);
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// CHECK-LABEL: @handle(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[OBJ_ADDR:%.*]] = alloca ptr addrspace(10), align 1
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// CHECK-NEXT: store ptr addrspace(10) [[OBJ:%.*]], ptr [[OBJ_ADDR]], align 1
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// CHECK-NEXT: [[TMP0:%.*]] = load ptr addrspace(10), ptr [[OBJ_ADDR]], align 1
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// CHECK-NEXT: call void @helper(ptr addrspace(10) [[TMP0]])
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// CHECK-NEXT: ret void
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//
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void handle(externref_t obj) {
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helper(obj);
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}
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