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llvm-6502/test/CodeGen/R600/mubuf.ll
Tom Stellard 1f996fa36b R600/SI: Add a stub GCNTargetMachine 
This is equivalent to the AMDGPUTargetMachine now, but it is the
starting point for separating R600 and GCN functionality into separate
targets.

It is recommened that users start using the gcn triple for GCN-based
GPUs, because using the r600 triple for these GPUs will be deprecated in
the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225277 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-06 18:00:21 +00:00

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; RUN: llc -march=amdgcn -mcpu=SI -show-mc-encoding -verify-machineinstrs < %s | FileCheck %s
declare i32 @llvm.r600.read.tidig.x() readnone
;;;==========================================================================;;;
;;; MUBUF LOAD TESTS
;;;==========================================================================;;;
; MUBUF load with an immediate byte offset that fits into 12-bits
; CHECK-LABEL: {{^}}mubuf_load0:
; CHECK: buffer_load_dword v{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0 offset:4 ; encoding: [0x04,0x00,0x30,0xe0
define void @mubuf_load0(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
entry:
%0 = getelementptr i32 addrspace(1)* %in, i64 1
%1 = load i32 addrspace(1)* %0
store i32 %1, i32 addrspace(1)* %out
ret void
}
; MUBUF load with the largest possible immediate offset
; CHECK-LABEL: {{^}}mubuf_load1:
; CHECK: buffer_load_ubyte v{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0 offset:4095 ; encoding: [0xff,0x0f,0x20,0xe0
define void @mubuf_load1(i8 addrspace(1)* %out, i8 addrspace(1)* %in) {
entry:
%0 = getelementptr i8 addrspace(1)* %in, i64 4095
%1 = load i8 addrspace(1)* %0
store i8 %1, i8 addrspace(1)* %out
ret void
}
; MUBUF load with an immediate byte offset that doesn't fit into 12-bits
; CHECK-LABEL: {{^}}mubuf_load2:
; CHECK: buffer_load_dword v{{[0-9]}}, v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 ; encoding: [0x00,0x80,0x30,0xe0
define void @mubuf_load2(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
entry:
%0 = getelementptr i32 addrspace(1)* %in, i64 1024
%1 = load i32 addrspace(1)* %0
store i32 %1, i32 addrspace(1)* %out
ret void
}
; MUBUF load with a 12-bit immediate offset and a register offset
; CHECK-LABEL: {{^}}mubuf_load3:
; CHECK-NOT: ADD
; CHECK: buffer_load_dword v{{[0-9]}}, v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 offset:4 ; encoding: [0x04,0x80,0x30,0xe0
define void @mubuf_load3(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i64 %offset) {
entry:
%0 = getelementptr i32 addrspace(1)* %in, i64 %offset
%1 = getelementptr i32 addrspace(1)* %0, i64 1
%2 = load i32 addrspace(1)* %1
store i32 %2, i32 addrspace(1)* %out
ret void
}
; CHECK-LABEL: {{^}}soffset_max_imm:
; CHECK: buffer_load_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+}}:{{[0-9]+}}], 64 offen glc
define void @soffset_max_imm([6 x <16 x i8>] addrspace(2)* byval, [17 x <16 x i8>] addrspace(2)* byval, [16 x <4 x i32>] addrspace(2)* byval, [32 x <8 x i32>] addrspace(2)* byval, i32 inreg, i32 inreg, i32, i32, i32, i32, i32, i32, i32, i32) #1 {
main_body:
%tmp0 = getelementptr [6 x <16 x i8>] addrspace(2)* %0, i32 0, i32 0
%tmp1 = load <16 x i8> addrspace(2)* %tmp0
%tmp2 = shl i32 %6, 2
%tmp3 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %tmp1, i32 %tmp2, i32 64, i32 0, i32 1, i32 0, i32 1, i32 0, i32 0)
%tmp4 = add i32 %6, 16
%tmp5 = bitcast float 0.0 to i32
call void @llvm.SI.tbuffer.store.i32(<16 x i8> %tmp1, i32 %tmp5, i32 1, i32 %tmp4, i32 %4, i32 0, i32 4, i32 4, i32 1, i32 0, i32 1, i32 1, i32 0)
ret void
}
; Make sure immediates that aren't inline constants don't get folded into
; the soffset operand.
; FIXME: for this test we should be smart enough to shift the immediate into
; the offset field.
; CHECK-LABEL: {{^}}soffset_no_fold:
; CHECK: s_movk_i32 [[SOFFSET:s[0-9]+]], 0x41
; CHECK: buffer_load_dword v{{[0-9+]}}, v{{[0-9+]}}, s[{{[0-9]+}}:{{[0-9]+}}], [[SOFFSET]] offen glc
define void @soffset_no_fold([6 x <16 x i8>] addrspace(2)* byval, [17 x <16 x i8>] addrspace(2)* byval, [16 x <4 x i32>] addrspace(2)* byval, [32 x <8 x i32>] addrspace(2)* byval, i32 inreg, i32 inreg, i32, i32, i32, i32, i32, i32, i32, i32) #1 {
main_body:
%tmp0 = getelementptr [6 x <16 x i8>] addrspace(2)* %0, i32 0, i32 0
%tmp1 = load <16 x i8> addrspace(2)* %tmp0
%tmp2 = shl i32 %6, 2
%tmp3 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %tmp1, i32 %tmp2, i32 65, i32 0, i32 1, i32 0, i32 1, i32 0, i32 0)
%tmp4 = add i32 %6, 16
%tmp5 = bitcast float 0.0 to i32
call void @llvm.SI.tbuffer.store.i32(<16 x i8> %tmp1, i32 %tmp5, i32 1, i32 %tmp4, i32 %4, i32 0, i32 4, i32 4, i32 1, i32 0, i32 1, i32 1, i32 0)
ret void
}
declare i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8>, i32, i32, i32, i32, i32, i32, i32, i32) #3
declare void @llvm.SI.tbuffer.store.i32(<16 x i8>, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32)
attributes #1 = { "ShaderType"="2" "unsafe-fp-math"="true" }
attributes #3 = { nounwind readonly }
;;;==========================================================================;;;
;;; MUBUF STORE TESTS
;;;==========================================================================;;;
; MUBUF store with an immediate byte offset that fits into 12-bits
; CHECK-LABEL: {{^}}mubuf_store0:
; CHECK: buffer_store_dword v{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0 offset:4 ; encoding: [0x04,0x00,0x70,0xe0
define void @mubuf_store0(i32 addrspace(1)* %out) {
entry:
%0 = getelementptr i32 addrspace(1)* %out, i64 1
store i32 0, i32 addrspace(1)* %0
ret void
}
; MUBUF store with the largest possible immediate offset
; CHECK-LABEL: {{^}}mubuf_store1:
; CHECK: buffer_store_byte v{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0 offset:4095 ; encoding: [0xff,0x0f,0x60,0xe0
define void @mubuf_store1(i8 addrspace(1)* %out) {
entry:
%0 = getelementptr i8 addrspace(1)* %out, i64 4095
store i8 0, i8 addrspace(1)* %0
ret void
}
; MUBUF store with an immediate byte offset that doesn't fit into 12-bits
; CHECK-LABEL: {{^}}mubuf_store2:
; CHECK: buffer_store_dword v{{[0-9]}}, v[{{[0-9]+:[0-9]+}}], s[{{[0-9]:[0-9]}}], 0 addr64 ; encoding: [0x00,0x80,0x70,0xe0
define void @mubuf_store2(i32 addrspace(1)* %out) {
entry:
%0 = getelementptr i32 addrspace(1)* %out, i64 1024
store i32 0, i32 addrspace(1)* %0
ret void
}
; MUBUF store with a 12-bit immediate offset and a register offset
; CHECK-LABEL: {{^}}mubuf_store3:
; CHECK-NOT: ADD
; CHECK: buffer_store_dword v{{[0-9]}}, v[{{[0-9]:[0-9]}}], s[{{[0-9]:[0-9]}}], 0 addr64 offset:4 ; encoding: [0x04,0x80,0x70,0xe0
define void @mubuf_store3(i32 addrspace(1)* %out, i64 %offset) {
entry:
%0 = getelementptr i32 addrspace(1)* %out, i64 %offset
%1 = getelementptr i32 addrspace(1)* %0, i64 1
store i32 0, i32 addrspace(1)* %1
ret void
}
; CHECK-LABEL: {{^}}store_sgpr_ptr:
; CHECK: buffer_store_dword v{{[0-9]+}}, s{{\[[0-9]+:[0-9]+\]}}, 0
define void @store_sgpr_ptr(i32 addrspace(1)* %out) #0 {
store i32 99, i32 addrspace(1)* %out, align 4
ret void
}
; CHECK-LABEL: {{^}}store_sgpr_ptr_offset:
; CHECK: buffer_store_dword v{{[0-9]+}}, s{{\[[0-9]+:[0-9]+\]}}, 0 offset:40
define void @store_sgpr_ptr_offset(i32 addrspace(1)* %out) #0 {
%out.gep = getelementptr i32 addrspace(1)* %out, i32 10
store i32 99, i32 addrspace(1)* %out.gep, align 4
ret void
}
; CHECK-LABEL: {{^}}store_sgpr_ptr_large_offset:
; CHECK: buffer_store_dword v{{[0-9]+}}, v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64
define void @store_sgpr_ptr_large_offset(i32 addrspace(1)* %out) #0 {
%out.gep = getelementptr i32 addrspace(1)* %out, i32 32768
store i32 99, i32 addrspace(1)* %out.gep, align 4
ret void
}
; CHECK-LABEL: {{^}}store_vgpr_ptr:
; CHECK: buffer_store_dword v{{[0-9]+}}, v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64
define void @store_vgpr_ptr(i32 addrspace(1)* %out) #0 {
%tid = call i32 @llvm.r600.read.tidig.x() readnone
%out.gep = getelementptr i32 addrspace(1)* %out, i32 %tid
store i32 99, i32 addrspace(1)* %out.gep, align 4
ret void
}
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