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6794012ea1
When the source of the load is a projection we have to bail because the code later can't handle it.
39 lines
1.5 KiB
Plaintext
39 lines
1.5 KiB
Plaintext
// 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
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// REQUIRES: PTRSIZE=64
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// REQUIRES: CPU=arm64 || CPU=arm64e
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sil_stage lowered
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import Builtin
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import Swift
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import SwiftShims
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struct ContainingLargeThing {
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var y : large_thing
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var x : large_thing
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}
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sil @pass_and_return : $@convention(c) (large_thing, large_thing) -> large_thing
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// Make sure that we are not dropping the struct_element_addr projection on the
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// floor
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// CHECK: define{{.*}} swiftcc void @test(ptr {{.*}} dereferenceable(256) %0)
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// CHECK: [[TMP:%.*]] = alloca %TSo11large_thinga
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// CHECK: [[PROJ_ADDR:%.*]] = getelementptr inbounds i8, ptr %0, i64 128
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// CHECK: [[VAL:%.*]] = load i64, ptr %.sroa.3.0..sroa_idx
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// CHECK: store i64 [[VAL]], ptr [[TMP]]
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sil @test : $@convention(thin) (@in ContainingLargeThing) -> () {
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bb0(%0 : $*ContainingLargeThing):
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%1 = alloc_stack $ContainingLargeThing
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copy_addr [take] %0 to [init] %1 : $*ContainingLargeThing
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%2 = struct_element_addr %1 : $*ContainingLargeThing, #ContainingLargeThing.x
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%3 = function_ref @pass_and_return : $@convention(c) (large_thing, large_thing) -> large_thing
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%4 = load %2 : $*large_thing // user: %9
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%5 = apply %3(%4, %4) : $@convention(c) (large_thing, large_thing) -> large_thing
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dealloc_stack %1 : $*ContainingLargeThing
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%6 = tuple()
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return %6 : $()
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}
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