216 lines
7.9 KiB
LLVM
216 lines
7.9 KiB
LLVM
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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; Make sure we don't turn the 32-bit argument load into a 16-bit
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; load. There aren't extending scalar lods, so that would require
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; using a buffer_load instruction.
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; FUNC-LABEL: {{^}}truncate_kernarg_i32_to_i16:
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; SI: s_load_dword s
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; SI: buffer_store_short v
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define amdgpu_kernel void @truncate_kernarg_i32_to_i16(i16 addrspace(1)* %out, i32 %arg) nounwind {
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%trunc = trunc i32 %arg to i16
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store i16 %trunc, i16 addrspace(1)* %out
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ret void
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}
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; It should be OK (and probably performance neutral) to reduce this,
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; but we don't know if the load is uniform yet.
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; FUNC-LABEL: {{^}}truncate_buffer_load_i32_to_i16:
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; SI: buffer_load_dword v
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; SI: buffer_store_short v
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define amdgpu_kernel void @truncate_buffer_load_i32_to_i16(i16 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i32, i32 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i16, i16 addrspace(1)* %out, i32 %tid
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%load = load i32, i32 addrspace(1)* %gep.in
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%trunc = trunc i32 %load to i16
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store i16 %trunc, i16 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_kernarg_i32_to_i8:
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; SI: s_load_dword s
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_kernarg_i32_to_i8(i8 addrspace(1)* %out, i32 %arg) nounwind {
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%trunc = trunc i32 %arg to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_buffer_load_i32_to_i8:
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; SI: buffer_load_dword v
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_buffer_load_i32_to_i8(i8 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i32, i32 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i8, i8 addrspace(1)* %out, i32 %tid
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%load = load i32, i32 addrspace(1)* %gep.in
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%trunc = trunc i32 %load to i8
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store i8 %trunc, i8 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_kernarg_i32_to_i1:
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; SI: s_load_dword s
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_kernarg_i32_to_i1(i1 addrspace(1)* %out, i32 %arg) nounwind {
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%trunc = trunc i32 %arg to i1
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store i1 %trunc, i1 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_buffer_load_i32_to_i1:
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; SI: buffer_load_dword v
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_buffer_load_i32_to_i1(i1 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i32, i32 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i1, i1 addrspace(1)* %out, i32 %tid
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%load = load i32, i32 addrspace(1)* %gep.in
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%trunc = trunc i32 %load to i1
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store i1 %trunc, i1 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_kernarg_i64_to_i32:
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; SI: s_load_dword s
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; SI: buffer_store_dword v
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define amdgpu_kernel void @truncate_kernarg_i64_to_i32(i32 addrspace(1)* %out, [8 x i32], i64 %arg) nounwind {
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%trunc = trunc i64 %arg to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_buffer_load_i64_to_i32:
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; SI: buffer_load_dword v
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; SI: buffer_store_dword v
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define amdgpu_kernel void @truncate_buffer_load_i64_to_i32(i32 addrspace(1)* %out, i64 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i64, i64 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i32, i32 addrspace(1)* %out, i32 %tid
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%load = load i64, i64 addrspace(1)* %gep.in
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%trunc = trunc i64 %load to i32
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store i32 %trunc, i32 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}srl_kernarg_i64_to_i32:
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; SI: s_load_dword s
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; SI: buffer_store_dword v
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define amdgpu_kernel void @srl_kernarg_i64_to_i32(i32 addrspace(1)* %out, [8 x i32], i64 %arg) nounwind {
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%srl = lshr i64 %arg, 32
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%trunc = trunc i64 %srl to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}srl_buffer_load_i64_to_i32:
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; SI: buffer_load_dword v
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; SI: buffer_store_dword v
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define amdgpu_kernel void @srl_buffer_load_i64_to_i32(i32 addrspace(1)* %out, i64 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i64, i64 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i32, i32 addrspace(1)* %out, i32 %tid
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%load = load i64, i64 addrspace(1)* %gep.in
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%srl = lshr i64 %load, 32
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%trunc = trunc i64 %srl to i32
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store i32 %trunc, i32 addrspace(1)* %gep.out
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ret void
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}
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; Might as well reduce to 8-bit loads.
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; FUNC-LABEL: {{^}}truncate_kernarg_i16_to_i8:
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; SI: s_load_dword s
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_kernarg_i16_to_i8(i8 addrspace(1)* %out, i16 %arg) nounwind {
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%trunc = trunc i16 %arg to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_buffer_load_i16_to_i8:
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; SI: buffer_load_ubyte v
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_buffer_load_i16_to_i8(i8 addrspace(1)* %out, i16 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i16, i16 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i8, i8 addrspace(1)* %out, i32 %tid
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%load = load i16, i16 addrspace(1)* %gep.in
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%trunc = trunc i16 %load to i8
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store i8 %trunc, i8 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}srl_kernarg_i64_to_i8:
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; SI: s_load_dword s
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; SI: buffer_store_byte v
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define amdgpu_kernel void @srl_kernarg_i64_to_i8(i8 addrspace(1)* %out, [8 x i32], i64 %arg) nounwind {
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%srl = lshr i64 %arg, 32
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%trunc = trunc i64 %srl to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}srl_buffer_load_i64_to_i8:
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; SI: buffer_load_dword v
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; SI: buffer_store_byte v
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define amdgpu_kernel void @srl_buffer_load_i64_to_i8(i8 addrspace(1)* %out, i64 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i64, i64 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i8, i8 addrspace(1)* %out, i32 %tid
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%load = load i64, i64 addrspace(1)* %gep.in
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%srl = lshr i64 %load, 32
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%trunc = trunc i64 %srl to i8
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store i8 %trunc, i8 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_kernarg_i64_to_i8:
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; SI: s_load_dword s
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_kernarg_i64_to_i8(i8 addrspace(1)* %out, [8 x i32], i64 %arg) nounwind {
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%trunc = trunc i64 %arg to i8
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store i8 %trunc, i8 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}truncate_buffer_load_i64_to_i8:
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; SI: buffer_load_dword v
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; SI: buffer_store_byte v
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define amdgpu_kernel void @truncate_buffer_load_i64_to_i8(i8 addrspace(1)* %out, i64 addrspace(1)* %in) nounwind {
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%tid = call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%gep.in = getelementptr i64, i64 addrspace(1)* %in, i32 %tid
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%gep.out = getelementptr i8, i8 addrspace(1)* %out, i32 %tid
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%load = load i64, i64 addrspace(1)* %gep.in
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%trunc = trunc i64 %load to i8
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store i8 %trunc, i8 addrspace(1)* %gep.out
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ret void
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}
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; FUNC-LABEL: {{^}}smrd_mask_i32_to_i16
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; SI: s_load_dword [[LOAD:s[0-9]+]], s[{{[0-9]+}}:{{[0-9]+}}], 0x0
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; SI: s_waitcnt lgkmcnt(0)
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; SI: s_and_b32 s{{[0-9]+}}, [[LOAD]], 0xffff
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define amdgpu_kernel void @smrd_mask_i32_to_i16(i32 addrspace(1)* %out, i32 addrspace(4)* %in) {
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entry:
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%val = load i32, i32 addrspace(4)* %in
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%mask = and i32 %val, 65535
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store i32 %mask, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}extract_hi_i64_bitcast_v2i32:
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; SI: buffer_load_dword v
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; SI: buffer_store_dword v
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define amdgpu_kernel void @extract_hi_i64_bitcast_v2i32(i32 addrspace(1)* %out, <2 x i32> addrspace(1)* %in) nounwind {
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%ld = load <2 x i32>, <2 x i32> addrspace(1)* %in
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%bc = bitcast <2 x i32> %ld to i64
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%hi = lshr i64 %bc, 32
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%trunc = trunc i64 %hi to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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