c8f70d7286
This addresses two issues introduced by moving indirect args into an explicit AS (please see <https://github.com/llvm/llvm-project/pull/114062#issuecomment-2659829790> and <https://github.com/llvm/llvm-project/pull/114062#issuecomment-2661158477>): 1. Unconditionally stripping casts from a pre-allocated return slot was incorrect / insufficient (this is illustrated by the `amdgcn_sret_ctor.cpp` test); 2. Putting compiler manufactured sret args in a non default AS can lead to a C-cast (surprisingly) requiring an AS cast (this is illustrated by the `sret_cast_with_nonzero_alloca_as.cpp test). The way we handle (2), by subverting CK_BitCast emission iff a sret arg is involved, is quite naff, but I couldn't think of any other way to use a non default indirect AS and make this case work (hopefully this is a failure of imagination on my part).
39 lines
1.9 KiB
C++
39 lines
1.9 KiB
C++
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --include-generated-funcs --version 5
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// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple amdgcn-amd-amdhsa -emit-llvm %s -fopenmp-is-target-device -o - | FileCheck %s
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#pragma omp begin declare target
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struct S {
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~S();
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};
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S s();
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struct E {
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S foo;
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E() noexcept;
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};
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E::E() noexcept : foo(s()) {}
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#pragma omp end declare target
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// CHECK-LABEL: define hidden void @_ZN1EC2Ev(
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// CHECK-SAME: ptr noundef nonnull align 1 dereferenceable(1) [[THIS:%.*]]) unnamed_addr #[[ATTR0:[0-9]+]] align 2 {
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// CHECK-NEXT: [[ENTRY:.*:]]
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// CHECK-NEXT: [[THIS_ADDR:%.*]] = alloca ptr, align 8, addrspace(5)
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// CHECK-NEXT: [[THIS_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[THIS_ADDR]] to ptr
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// CHECK-NEXT: store ptr [[THIS]], ptr [[THIS_ADDR_ASCAST]], align 8
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// CHECK-NEXT: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR_ASCAST]], align 8
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// CHECK-NEXT: [[THIS1_ASCAST:%.*]] = addrspacecast ptr [[THIS1]] to ptr addrspace(5)
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// CHECK-NEXT: call void @_Z1sv(ptr addrspace(5) dead_on_unwind writable sret([[STRUCT_S:%.*]]) align 1 [[THIS1_ASCAST]]) #[[ATTR2:[0-9]+]]
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// CHECK-NEXT: ret void
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//
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// CHECK-LABEL: declare void @_Z1sv(
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// CHECK-SAME: ptr addrspace(5) dead_on_unwind writable sret([[STRUCT_S]]) align 1) #[[ATTR1:[0-9]+]]
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//
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// CHECK-LABEL: define hidden void @_ZN1EC1Ev(
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// CHECK-SAME: ptr noundef nonnull align 1 dereferenceable(1) [[THIS:%.*]]) unnamed_addr #[[ATTR0]] align 2 {
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// CHECK-NEXT: [[ENTRY:.*:]]
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// CHECK-NEXT: [[THIS_ADDR:%.*]] = alloca ptr, align 8, addrspace(5)
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// CHECK-NEXT: [[THIS_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[THIS_ADDR]] to ptr
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// CHECK-NEXT: store ptr [[THIS]], ptr [[THIS_ADDR_ASCAST]], align 8
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// CHECK-NEXT: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR_ASCAST]], align 8
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// CHECK-NEXT: call void @_ZN1EC2Ev(ptr noundef nonnull align 1 dereferenceable(1) [[THIS1]]) #[[ATTR3:[0-9]+]]
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// CHECK-NEXT: ret void
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//
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