File: opaque_values_unit.sil

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// RUN: %target-sil-opt -enable-sil-opaque-values -test-runner %s 2>&1 | %FileCheck %s

// REQUIRES: swift_in_compiler

import Builtin

class C {}

// Verify that SILFunction_getSelfArgumentIndex respects SILFunctionConventions
// and returns right value even in the presence of indirect results.
//
// CHECK-LABEL: begin running test 1 of {{[^,]+}} on f: argument_conventions
// The parameter index is 0 here when opaque values are enabled because the result
// is just returned.  It could mistakenly be calculated as 1 though because
// after AddressLowering there will be a new argument at index 0 for the
// indirect result.
// CHECK:       [0] parameter: directGuaranteed
// CHECK-LABEL: end running test 1 of {{[^,]+}} on f: argument_conventions
sil [ossa] @f : $@convention(method) <T> (@guaranteed C) -> @out T {
entry(%instance : @guaranteed $C):
    specify_test "argument_conventions"
    unreachable
}