32f9983c06
This is an experimental address space for strided buffers. These buffers can have structs as elements and a stride > 1. These pointers allow the indexed access in units of stride, i.e., they point at `buffer[index * stride]`. Thus, we can use the `idxen` modifier for buffer loads. We assign address space 9 to 192-bit buffer pointers which contain a 128-bit descriptor, a 32-bit offset and a 32-bit index. Essentially, they are fat buffer pointers with an additional 32-bit index.
121 lines
4.1 KiB
LLVM
121 lines
4.1 KiB
LLVM
;RUN: llc < %s -mtriple=amdgcn-- -verify-machineinstrs | FileCheck -check-prefixes=CHECK,GCN %s
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;RUN: llc < %s -march=r600 -mtriple=r600-- -verify-machineinstrs | FileCheck -check-prefixes=CHECK,R600 %s
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%struct.S = type { ptr addrspace(5), ptr addrspace(1), ptr addrspace(4), ptr addrspace(3), ptr, ptr addrspace(2)}
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; CHECK-LABEL: nullptr_priv:
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; CHECK-NEXT: .long -1
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@nullptr_priv = global ptr addrspace(5) addrspacecast (ptr null to ptr addrspace(5))
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; CHECK-LABEL: nullptr_glob:
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; GCN-NEXT: .quad 0
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; R600-NEXT: .long 0
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@nullptr_glob = global ptr addrspace(1) addrspacecast (ptr null to ptr addrspace(1))
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; CHECK-LABEL: nullptr_const:
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; GCN-NEXT: .quad 0
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; R600-NEXT: .long 0
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@nullptr_const = global ptr addrspace(4) addrspacecast (ptr null to ptr addrspace(4))
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; CHECK-LABEL: nullptr_local:
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; CHECK-NEXT: .long -1
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@nullptr_local = global ptr addrspace(3) addrspacecast (ptr null to ptr addrspace(3))
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; CHECK-LABEL: nullptr_region:
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; CHECK-NEXT: .long -1
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@nullptr_region = global ptr addrspace(2) addrspacecast (ptr null to ptr addrspace(2))
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; CHECK-LABEL: nullptr6:
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; R600-NEXT: .long 0
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@nullptr6 = global ptr addrspace(6) addrspacecast (ptr null to ptr addrspace(6))
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; FIXME: AsmPrinter can't handle 128-bit constants
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; FIXME-LABEL: nullptr7:
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; FIXME-R600-NEXT: .long 0
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; FIXME @nullptr7 = global ptr addrspace(7) addrspacecast (ptr null to ptr addrspace(7))
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; FIXME-LABEL: nullptr8:
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; FIXME-R600-NEXT: .long 0
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; FIXME @nullptr8 = global ptr addrspace(8) addrspacecast (ptr null to ptr addrspace(8))
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; FIXME-LABEL: nullptr9:
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; FIXME-R600-NEXT: .long 0
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; FIXME @nullptr9 = global ptr addrspace(9) addrspacecast (ptr null to ptr addrspace(9))
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; CHECK-LABEL: nullptr10:
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; R600-NEXT: .long 0
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@nullptr10 = global ptr addrspace(10) addrspacecast (ptr null to ptr addrspace(10))
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; CHECK-LABEL: nullptr11:
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; R600-NEXT: .long 0
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@nullptr11 = global ptr addrspace(11) addrspacecast (ptr null to ptr addrspace(11))
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; CHECK-LABEL: nullptr12:
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; R600-NEXT: .long 0
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@nullptr12 = global ptr addrspace(12) addrspacecast (ptr null to ptr addrspace(12))
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; CHECK-LABEL: nullptr13:
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; R600-NEXT: .long 0
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@nullptr13 = global ptr addrspace(13) addrspacecast (ptr null to ptr addrspace(13))
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; CHECK-LABEL: nullptr14:
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; R600-NEXT: .long 0
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@nullptr14 = global ptr addrspace(14) addrspacecast (ptr null to ptr addrspace(14))
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; CHECK-LABEL: nullptr15:
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; R600-NEXT: .long 0
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@nullptr15 = global ptr addrspace(15) addrspacecast (ptr null to ptr addrspace(15))
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; CHECK-LABEL: nullptr16:
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; R600-NEXT: .long 0
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@nullptr16 = global ptr addrspace(16) addrspacecast (ptr null to ptr addrspace(16))
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; CHECK-LABEL: nullptr17:
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; R600-NEXT: .long 0
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@nullptr17 = global ptr addrspace(17) addrspacecast (ptr null to ptr addrspace(17))
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; CHECK-LABEL: nullptr18:
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; R600-NEXT: .long 0
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@nullptr18 = global ptr addrspace(18) addrspacecast (ptr null to ptr addrspace(18))
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; CHECK-LABEL: nullptr19:
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; R600-NEXT: .long 0
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@nullptr19 = global ptr addrspace(19) addrspacecast (ptr null to ptr addrspace(19))
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; CHECK-LABEL: nullptr20:
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; R600-NEXT: .long 0
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@nullptr20 = global ptr addrspace(20) addrspacecast (ptr null to ptr addrspace(20))
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; CHECK-LABEL: nullptr21:
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; R600-NEXT: .long 0
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@nullptr21 = global ptr addrspace(21) addrspacecast (ptr null to ptr addrspace(21))
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; CHECK-LABEL: nullptr22:
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; R600-NEXT: .long 0
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@nullptr22 = global ptr addrspace(22) addrspacecast (ptr null to ptr addrspace(22))
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; CHECK-LABEL: nullptr23:
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; R600-NEXT: .long 0
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@nullptr23 = global ptr addrspace(23) addrspacecast (ptr null to ptr addrspace(23))
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; CHECK-LABEL: structWithPointers:
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; CHECK-NEXT: .long -1
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; GCN-NEXT: .zero 4
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; GCN-NEXT: .quad 0
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; R600-NEXT: .long 0
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; GCN-NEXT: .quad 0
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; R600-NEXT: .long 0
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; CHECK-NEXT: .long -1
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; GCN-NEXT: .zero 4
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; GCN-NEXT: .quad 0
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; R600-NEXT: .long 0
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; CHECK-NEXT: .long -1
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; GCN-NEXT: .zero 4
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@structWithPointers = addrspace(1) global %struct.S {
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ptr addrspace(5) addrspacecast (ptr null to ptr addrspace(5)),
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ptr addrspace(1) addrspacecast (ptr null to ptr addrspace(1)),
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ptr addrspace(4) addrspacecast (ptr null to ptr addrspace(4)),
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ptr addrspace(3) addrspacecast (ptr null to ptr addrspace(3)),
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ptr null,
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ptr addrspace(2) addrspacecast (ptr null to ptr addrspace(2))}, align 4
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