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// RUN: %target-swift-frontend %s -Osize -import-objc-header %S/Inputs/large_argument_result_c.h -emit-ir -o - 2>&1 | %FileCheck %s
// REQUIRES: PTRSIZE=64
// Whether llvm can remove the first two memcmp's dependents on the ABI (arm64's
// PCS, says stack arguments might be written to; x86-64 ABI copies indirect
// parameters for the call)
// REQUIRES: CPU=arm64 || CPU=arm64e
// CHECK: define swiftcc void @"$s23large_argument_result_c7runTestyySo0A6_thingaF"(ptr {{.*}} %0)
// CHECK: [[CALL_ALLOCA:%.*]] = alloca <{ %Ts6UInt64V, %Ts6UInt64V, %Ts6UInt64V
// CHECK: [[TMP_ALLOCA:%.*]] = alloca %TSo11large_thinga, align 8
// CHECK: [[TMP_ALLOCA2:%.*]] = alloca %TSo11large_thinga, align 8
// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr {{.*}} [[TMP_ALLOCA2]], ptr {{.*}} %0, i64 128, i1 false)
// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr {{.*}} [[TMP_ALLOCA]], ptr {{.*}} %0, i64 128, i1 false)
// CHECK: call void @pass_and_return(ptr {{.*}} [[CALL_ALLOCA]], ptr nonnull [[TMP_ALLOCA]], ptr nonnull [[TMP_ALLOCA2]])
// CHECK: call {{.*}} @swift_allocObject
// CHECK: [[BOX:%.*]] = call noalias ptr @swift_allocObject(
// CHECK: [[ADDR_IN_BOX:%.*]] = getelementptr inbounds i8, ptr [[BOX]], i64 16
// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr {{.*}} [[ADDR_IN_BOX]], ptr {{.*}} [[CALL_ALLOCA]], i64 128, i1 false)
// CHECK: call void @llvm.lifetime.end.p0(i64 128, ptr nonnull [[CALL_ALLOCA]])
public func runTest(_ l : large_thing) {
let r = pass_and_return(l, l)
print(r)
}
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