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Patch call to fast_call #211

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Patch call to fast_call #211

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12 changes: 12 additions & 0 deletions src/instance/vm.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -263,6 +263,18 @@ pub const VirtualMachine = struct {
// Make space for locals (again, params already on stack)
self.op_ptr += f.locals_count;

// Only patch (for the moment) functions in the same instance
if (self.inst == f.instance) {
// Switch call with fast_call
code[ip] = .{ .fast_call = .{
.start = @as(u32, @truncate(f.start)),
.locals = @as(u16, @truncate(f.locals_count)),
.params = @as(u16, @truncate(function.params.len)),
.results = @as(u16, @truncate(function.results.len)),
.required_stack_space = @as(u16, @truncate(f.required_stack_space)),
} };
}

self.inst = f.instance;

// Consume parameters from the stack
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