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llvm-project/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.implicit.buffer...

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AMDGPU: Partially fix implicit.buffer.ptr intrinsic handling This should not be treated as a different version of private_segment_buffer. These are distinct things with different uses and register classes, and requires the function argument info to have more context about the function's type and environment. Also add missing test coverage for the intrinsic, and emit an error for HSA. This also encovers that the intrinsic is broken unless there happen to be stack objects. llvm-svn: 306264
2017-06-26 11:01:31 +08:00
; RUN: not llc -mtriple=amdgcn-amd-amdhsa < %s 2>&1 | FileCheck -check-prefix=ERROR %s
; ERROR: in function test_kernel{{.*}}: non-hsa intrinsic with hsa target
define amdgpu_kernel void @test_kernel(i32 addrspace(1)* %out) #1 {
%implicit_buffer_ptr = call i8 addrspace(2)* @llvm.amdgcn.implicit.buffer.ptr()
%header_ptr = bitcast i8 addrspace(2)* %implicit_buffer_ptr to i32 addrspace(2)*
%value = load i32, i32 addrspace(2)* %header_ptr
store i32 %value, i32 addrspace(1)* %out
ret void
}
; ERROR: in function test_func{{.*}}: non-hsa intrinsic with hsa target
define void @test_func(i32 addrspace(1)* %out) #1 {
%implicit_buffer_ptr = call i8 addrspace(2)* @llvm.amdgcn.implicit.buffer.ptr()
%header_ptr = bitcast i8 addrspace(2)* %implicit_buffer_ptr to i32 addrspace(2)*
%value = load i32, i32 addrspace(2)* %header_ptr
store i32 %value, i32 addrspace(1)* %out
ret void
}
declare i8 addrspace(2)* @llvm.amdgcn.implicit.buffer.ptr() #0
attributes #0 = { nounwind readnone speculatable }
attributes #1 = { nounwind }