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// RUN: %target-swift-frontend %s -Osize -Xllvm -sil-disable-pass=lower-aggregate-instrs -disable-large-loadable-types-reg2mem -import-objc-header %S/Inputs/large_argument_result_c.h -emit-ir -o - 2>&1 | %FileCheck %s
// REQUIRES: PTRSIZE=64
// REQUIRES: CPU=arm64 || CPU=arm64e
sil_stage lowered
import Builtin
import Swift
import SwiftShims
struct ContainingLargeThing {
var y : large_thing
var x : large_thing
}
sil @pass_and_return : $@convention(c) (large_thing, large_thing) -> large_thing
// Make sure that we are not dropping the struct_element_addr projection on the
// floor
// CHECK: define{{.*}} swiftcc void @test(ptr {{.*}} dereferenceable(256) %0)
// CHECK: [[TMP:%.*]] = alloca %TSo11large_thinga
// CHECK: [[PROJ_ADDR:%.*]] = getelementptr inbounds i8, ptr %0, i64 128
// CHECK: [[VAL:%.*]] = load i64, ptr %.sroa.3.0..sroa_idx
// CHECK: store i64 [[VAL]], ptr [[TMP]]
sil @test : $@convention(thin) (@in ContainingLargeThing) -> () {
bb0(%0 : $*ContainingLargeThing):
%1 = alloc_stack $ContainingLargeThing
copy_addr [take] %0 to [init] %1 : $*ContainingLargeThing
%2 = struct_element_addr %1 : $*ContainingLargeThing, #ContainingLargeThing.x
%3 = function_ref @pass_and_return : $@convention(c) (large_thing, large_thing) -> large_thing
%4 = load %2 : $*large_thing // user: %9
%5 = apply %3(%4, %4) : $@convention(c) (large_thing, large_thing) -> large_thing
dealloc_stack %1 : $*ContainingLargeThing
%6 = tuple()
return %6 : $()
}
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