derek.holloway
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64 lines
2.6 KiB
LLVM
64 lines
2.6 KiB
LLVM
; Ensure that sret pointer semantics is preserved when the parameter is unused
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; (even with the SPV_KHR_untyped_pointers extension enabled).
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; RUN: llvm-spirv %s -spirv-text -o %t.txt
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; RUN: FileCheck < %t.txt %s --check-prefix=CHECK-SPIRV
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; RUN: llvm-spirv %s -o %t.spv
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; RUN: spirv-val %t.spv
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; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
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; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
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; RUN: llvm-spirv %s -spirv-text -o %t.txt --spirv-ext=+SPV_KHR_untyped_pointers
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; RUN: FileCheck < %t.txt %s --check-prefix=CHECK-SPIRV
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; RUN: llvm-spirv %s -o %t.spv --spirv-ext=+SPV_KHR_untyped_pointers
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; RUNx: spirv-val %t.spv
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; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
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; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
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; CHECK-SPIRV-DAG: Name [[#FunBoo:]] "boo"
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; CHECK-SPIRV-DAG: Name [[#FunBaz:]] "baz"
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; CHECK-SPIRV-DAG: Decorate [[#ParamBoo:]] FuncParamAttr 3
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; CHECK-SPIRV-DAG: Decorate [[#ParamBaz:]] FuncParamAttr 3
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; CHECK-SPIRV-DAG: TypePointer [[#PtrTy7:]] 7 [[#StructTy:]]
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; CHECK-SPIRV-DAG: TypePointer [[#PtrTy8:]] 8 [[#StructTy:]]
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; CHECK-SPIRV-DAG: TypeStruct [[#StructTy]]
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; CHECK-SPIRV-DAG: TypeFunction [[#BooTy:]] [[#]] [[#PtrTy7]] [[#]] {{$}}
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; CHECK-SPIRV-DAG: TypeFunction [[#BazTy:]] [[#]] [[#PtrTy8]] {{$}}
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; CHECK-SPIRV: Function [[#]] [[#FunBoo]] [[#]] [[#BooTy]]
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; CHECK-SPIRV: FunctionParameter [[#PtrTy7]] [[#ParamBoo]]
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; CHECK-SPIRV: Function [[#]] [[#FunBaz]] [[#]] [[#BazTy]]
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; CHECK-SPIRV: FunctionParameter [[#PtrTy8]] [[#ParamBaz]]
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; CHECK-SPIRV: FunctionParameter [[#PtrTy7]] [[#ParamBar:]]
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; With untyped extension enabled addrspacecast is done to untyped pointer type in addrspace 8.
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; CHECK-SPIRV: PtrCastToGeneric [[#]] [[#Cast:]] [[#ParamBar]]
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; CHECK-SPIRV: FunctionCall [[#]] [[#]] [[#FunBaz]] [[#Cast]]
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; CHECK-LLVM: call spir_func void @boo(ptr sret(%struct.Example) align 8
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; CHECK-LLVM: call spir_func void @baz(ptr addrspace(4) sret(%struct.Example) %cast)
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source_filename = "/app/example.cpp"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "spir-unknown-unknown"
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%struct.Example = type { }
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define spir_func i32 @foo() {
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%1 = alloca %struct.Example, align 8
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call void @boo(ptr sret(%struct.Example) align 8 %1, i32 noundef 42)
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ret i32 0
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}
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define spir_func void @bar(ptr sret(%struct.Example) %ret_ptr) {
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%cast = addrspacecast ptr %ret_ptr to ptr addrspace(4)
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call void @baz(ptr addrspace(4) sret(%struct.Example) %cast)
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ret void
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}
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declare void @boo(ptr sret(%struct.Example) align 8, i32 noundef)
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declare void @baz(ptr addrspace(4) sret(%struct.Example))
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