36 lines
1.4 KiB
LLVM
36 lines
1.4 KiB
LLVM
; RUN: llc -mtriple=amdgcn-mesa-mesa3d -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; FIXME: Requires stack object to not assert
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; GCN-LABEL: {{^}}test_ps:
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; GCN: s_load_dwordx2 s[4:5], s[0:1], 0x0
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; GCN: buffer_store_dword v0, off, s[4:7], 0 offset:4
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; GCN: s_load_dword s{{[0-9]+}}, s[0:1], 0x0
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; GCN-NEXT: s_waitcnt
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; GCN-NEXT: ; return
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define amdgpu_ps i32 @test_ps() #1 {
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%alloca = alloca i32, addrspace(5)
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store volatile i32 0, i32 addrspace(5)* %alloca
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%implicit_buffer_ptr = call i8 addrspace(4)* @llvm.amdgcn.implicit.buffer.ptr()
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%buffer_ptr = bitcast i8 addrspace(4)* %implicit_buffer_ptr to i32 addrspace(4)*
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%value = load volatile i32, i32 addrspace(4)* %buffer_ptr
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ret i32 %value
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}
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; GCN-LABEL: {{^}}test_cs:
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; GCN: s_mov_b64 s[4:5], s[0:1]
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; GCN: buffer_store_dword v{{[0-9]+}}, off, s[4:7], 0 offset:4
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; GCN: s_load_dword s0, s[0:1], 0x0
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define amdgpu_cs i32 @test_cs() #1 {
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%alloca = alloca i32, addrspace(5)
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store volatile i32 0, i32 addrspace(5)* %alloca
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%implicit_buffer_ptr = call i8 addrspace(4)* @llvm.amdgcn.implicit.buffer.ptr()
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%buffer_ptr = bitcast i8 addrspace(4)* %implicit_buffer_ptr to i32 addrspace(4)*
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%value = load volatile i32, i32 addrspace(4)* %buffer_ptr
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ret i32 %value
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}
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declare i8 addrspace(4)* @llvm.amdgcn.implicit.buffer.ptr() #0
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attributes #0 = { nounwind readnone speculatable }
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attributes #1 = { nounwind }
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