56ea488d8b
An encoding does not allow to use SDWA in an instruction with scalar operands, either literals or SGPRs. That is however possible to copy these operands into a VGPR first. Several copies of the value are produced if multiple SDWA conversions were done. To cleanup MachineLICM (to hoist copies out of loops), MachineCSE (to remove duplicate copies) and SIFoldOperands (to replace SGPR to VGPR copy with immediate copy right to the VGPR) runs are added after the SDWA pass. Differential Revision: https://reviews.llvm.org/D33583 llvm-svn: 304219
168 lines
6.9 KiB
LLVM
168 lines
6.9 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI -check-prefix=SIVI %s
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; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX89 -check-prefix=VI -check-prefix=SIVI %s
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; RUN: llc -march=amdgcn -mcpu=gfx901 -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX89 -check-prefix=GFX9 %s
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; GCN-LABEL: {{^}}fsub_f16:
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; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
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; GCN: buffer_load_ushort v[[B_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
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; SI: v_cvt_f32_f16_e32 v[[B_F32:[0-9]+]], v[[B_F16]]
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; SI: v_subrev_f32_e32 v[[R_F32:[0-9]+]], v[[B_F32]], v[[A_F32]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16:[0-9]+]], v[[R_F32]]
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; GFX89: v_subrev_f16_e32 v[[R_F16:[0-9]+]], v[[B_F16]], v[[A_F16]]
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; GCN: buffer_store_short v[[R_F16]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fsub_f16(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fsub half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}fsub_f16_imm_a:
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; GCN: buffer_load_ushort v[[B_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[B_F32:[0-9]+]], v[[B_F16]]
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; SI: v_sub_f32_e32 v[[R_F32:[0-9]+]], 1.0, v[[B_F32]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16:[0-9]+]], v[[R_F32]]
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; GFX89: v_sub_f16_e32 v[[R_F16:[0-9]+]], 1.0, v[[B_F16]]
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; GCN: buffer_store_short v[[R_F16]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fsub_f16_imm_a(
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half addrspace(1)* %r,
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half addrspace(1)* %b) {
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entry:
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%b.val = load half, half addrspace(1)* %b
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%r.val = fsub half 1.0, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}fsub_f16_imm_b:
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; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
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; SI: v_add_f32_e32 v[[R_F32:[0-9]+]], -2.0, v[[A_F32]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16:[0-9]+]], v[[R_F32]]
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; GFX89: v_add_f16_e32 v[[R_F16:[0-9]+]], -2.0, v[[A_F16]]
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; GCN: buffer_store_short v[[R_F16]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fsub_f16_imm_b(
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half addrspace(1)* %r,
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half addrspace(1)* %a) {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%r.val = fsub half %a.val, 2.0
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}fsub_v2f16:
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; GCN: buffer_load_dword v[[A_V2_F16:[0-9]+]]
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; GCN: buffer_load_dword v[[B_V2_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32_0:[0-9]+]], v[[A_V2_F16]]
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; SI: v_lshrrev_b32_e32 v[[A_F16_1:[0-9]+]], 16, v[[A_V2_F16]]
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; SI: v_cvt_f32_f16_e32 v[[B_F32_0:[0-9]+]], v[[B_V2_F16]]
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; SI: v_lshrrev_b32_e32 v[[B_F16_1:[0-9]+]], 16, v[[B_V2_F16]]
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; SI-DAG: v_cvt_f32_f16_e32 v[[A_F32_1:[0-9]+]], v[[A_F16_1]]
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; SI-DAG: v_cvt_f32_f16_e32 v[[B_F32_1:[0-9]+]], v[[B_F16_1]]
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; SI: v_subrev_f32_e32 v[[R_F32_0:[0-9]+]], v[[B_F32_0]], v[[A_F32_0]]
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; SI: v_subrev_f32_e32 v[[R_F32_1:[0-9]+]], v[[B_F32_1]], v[[A_F32_1]]
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; SI-DAG: v_cvt_f16_f32_e32 v[[R_F16_1:[0-9]+]], v[[R_F32_1]]
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; SI-DAG: v_cvt_f16_f32_e32 v[[R_F16_0:[0-9]+]], v[[R_F32_0]]
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; SI-DAG: v_lshlrev_b32_e32 v[[R_F16_HI:[0-9]+]], 16, v[[R_F16_1]]
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; SI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_HI]], v[[R_F16_0]]
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; VI-DAG: v_subrev_f16_e32 v[[R_F16_0:[0-9]+]], v[[B_V2_F16]], v[[A_V2_F16]]
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; VI-DAG: v_subrev_f16_sdwa v[[R_F16_HI:[0-9]+]], v[[B_V2_F16]], v[[A_V2_F16]] dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
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; VI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_HI]], v[[R_F16_0]]
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; GFX9: v_pk_add_f16 v[[R_V2_F16:[0-9]+]], v[[A_V2_F16]], v[[B_V2_F16]] neg_lo:[0,1] neg_hi:[0,1]
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; GCN: buffer_store_dword v[[R_V2_F16]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fsub_v2f16(
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<2 x half> addrspace(1)* %r,
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<2 x half> addrspace(1)* %a,
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<2 x half> addrspace(1)* %b) {
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entry:
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%a.val = load <2 x half>, <2 x half> addrspace(1)* %a
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%b.val = load <2 x half>, <2 x half> addrspace(1)* %b
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%r.val = fsub <2 x half> %a.val, %b.val
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store <2 x half> %r.val, <2 x half> addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}fsub_v2f16_imm_a:
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; GCN-DAG: buffer_load_dword v[[B_V2_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[B_F32_0:[0-9]+]], v[[B_V2_F16]]
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; SI: v_lshrrev_b32_e32 v[[B_F16_1:[0-9]+]], 16, v[[B_V2_F16]]
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; SI: v_cvt_f32_f16_e32 v[[B_F32_1:[0-9]+]], v[[B_F16_1]]
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; SI: v_sub_f32_e32 v[[R_F32_0:[0-9]+]], 1.0, v[[B_F32_0]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_0:[0-9]+]], v[[R_F32_0]]
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; SI: v_sub_f32_e32 v[[R_F32_1:[0-9]+]], 2.0, v[[B_F32_1]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_1:[0-9]+]], v[[R_F32_1]]
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; SI-DAG: v_lshlrev_b32_e32 v[[R_F16_HI:[0-9]+]], 16, v[[R_F16_1]]
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; SI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_HI]], v[[R_F16_0]]
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; VI-DAG: v_mov_b32_e32 [[CONST2:v[0-9]+]], 0x4000
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; VI-DAG: v_sub_f16_sdwa v[[R_F16_HI:[0-9]+]], [[CONST2]], v[[B_V2_F16]] dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_1
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; VI-DAG: v_sub_f16_e32 v[[R_F16_0:[0-9]+]], 1.0, v[[B_V2_F16]]
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; VI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_HI]], v[[R_F16_0]]
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; GFX9: s_mov_b32 [[K:s[0-9]+]], 0x40003c00
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; GFX9: v_pk_add_f16 v[[R_V2_F16:[0-9]+]], v[[B_V2_F16]], [[K]] neg_lo:[1,0] neg_hi:[1,0]
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; GCN: buffer_store_dword v[[R_V2_F16]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fsub_v2f16_imm_a(
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<2 x half> addrspace(1)* %r,
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<2 x half> addrspace(1)* %b) {
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entry:
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%b.val = load <2 x half>, <2 x half> addrspace(1)* %b
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%r.val = fsub <2 x half> <half 1.0, half 2.0>, %b.val
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store <2 x half> %r.val, <2 x half> addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}fsub_v2f16_imm_b:
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; GCN-DAG: buffer_load_dword v[[A_V2_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32_0:[0-9]+]], v[[A_V2_F16]]
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; SI: v_lshrrev_b32_e32 v[[A_F16_1:[0-9]+]], 16, v[[A_V2_F16]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32_1:[0-9]+]], v[[A_F16_1]]
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; SI: v_add_f32_e32 v[[R_F32_0:[0-9]+]], -2.0, v[[A_F32_0]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_0:[0-9]+]], v[[R_F32_0]]
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; SI: v_add_f32_e32 v[[R_F32_1:[0-9]+]], -1.0, v[[A_F32_1]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_1:[0-9]+]], v[[R_F32_1]]
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; SI-DAG: v_lshlrev_b32_e32 v[[R_F16_HI:[0-9]+]], 16, v[[R_F16_1]]
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; SI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_HI]], v[[R_F16_0]]
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; VI-DAG: v_mov_b32_e32 [[CONSTM1:v[0-9]+]], 0xbc00
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; VI-DAG: v_add_f16_sdwa v[[R_F16_HI:[0-9]+]], [[CONSTM1]], v[[A_V2_F16]] dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_1
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; VI-DAG: v_add_f16_e32 v[[R_F16_0:[0-9]+]], -2.0, v[[A_V2_F16]]
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; VI: v_or_b32_e32 v[[R_V2_F16:[0-9]+]], v[[R_F16_HI]], v[[R_F16_0]]
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; GFX9: s_mov_b32 [[K:s[0-9]+]], 0xbc00c000
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; GFX9: v_pk_add_f16 v[[R_V2_F16:[0-9]+]], v[[A_V2_F16]], [[K]]{{$}}
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; GCN: buffer_store_dword v[[R_V2_F16]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fsub_v2f16_imm_b(
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<2 x half> addrspace(1)* %r,
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<2 x half> addrspace(1)* %a) {
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entry:
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%a.val = load <2 x half>, <2 x half> addrspace(1)* %a
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%r.val = fsub <2 x half> %a.val, <half 2.0, half 1.0>
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store <2 x half> %r.val, <2 x half> addrspace(1)* %r
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ret void
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}
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