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[AMDGPU] gfx1010 lost VOP2 forms of some add/sub

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Add legalization of V_ADD_I32, V_SUB_I32, V_SUBREV_I32.

Differential Revision:

llvm-svn: 359757
This commit is contained in:
Stanislav Mekhanoshin 2019-05-02 04:26:35 +00:00
parent 4dc73d8f2e
commit e079e36506
3 changed files with 88 additions and 19 deletions
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27
lib/Target/AMDGPU/SIISelLowering.cpp
View File

@ -3540,6 +3540,33 @@ MachineBasicBlock *SITargetLowering::EmitInstrWithCustomInserter(
MI.eraseFromParent();
return BB;
}
case AMDGPU::V_ADD_I32_e32:
case AMDGPU::V_SUB_I32_e32:
case AMDGPU::V_SUBREV_I32_e32: {
// TODO: Define distinct V_*_I32_Pseudo instructions instead.
const DebugLoc &DL = MI.getDebugLoc();
unsigned Opc = MI.getOpcode();
bool NeedClampOperand = false;
if (TII->pseudoToMCOpcode(Opc) == -1) {
Opc = AMDGPU::getVOPe64(Opc);
NeedClampOperand = true;
}
auto I = BuildMI(*BB, MI, DL, TII->get(Opc), MI.getOperand(0).getReg());
if (TII->isVOP3(*I)) {
I.addReg(AMDGPU::VCC, RegState::Define);
}
I.add(MI.getOperand(1))
.add(MI.getOperand(2));
if (NeedClampOperand)
I.addImm(0); // clamp bit for e64 encoding
TII->legalizeOperands(*I);
MI.eraseFromParent();
return BB;
}
default:
return AMDGPUTargetLowering::EmitInstrWithCustomInserter(MI, BB);
}

38
test/CodeGen/AMDGPU/mad.u16.ll Normal file
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@ -0,0 +1,38 @@
; RUN: llc -march=amdgcn -mcpu=gfx803 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX8 %s
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX9 %s
; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX10 %s
; FIXME: GFX9 should be producing v_mad_u16 instead of v_mad_legacy_u16.
; GCN-LABEL: {{^}}mad_u16
; GCN: {{flat|global}}_load_ushort v[[A:[0-9]+]]
; GCN: {{flat|global}}_load_ushort v[[B:[0-9]+]]
; GCN: {{flat|global}}_load_ushort v[[C:[0-9]+]]
; GFX8: v_mad_u16 v[[R:[0-9]+]], v[[A]], v[[B]], v[[C]]
; GFX9: v_mad_legacy_u16 v[[R:[0-9]+]], v[[A]], v[[B]], v[[C]]
; GFX10: v_mad_u16 v[[R:[0-9]+]], v[[A]], v[[B]], v[[C]]
; GCN: {{flat|global}}_store_short v{{\[[0-9]+:[0-9]+\]}}, v[[R]]
; GCN: s_endpgm
define amdgpu_kernel void @mad_u16(
i16 addrspace(1)* %r,
i16 addrspace(1)* %a,
i16 addrspace(1)* %b,
i16 addrspace(1)* %c) {
entry:
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%a.gep = getelementptr inbounds i16, i16 addrspace(1)* %a, i32 %tid
%b.gep = getelementptr inbounds i16, i16 addrspace(1)* %b, i32 %tid
%c.gep = getelementptr inbounds i16, i16 addrspace(1)* %c, i32 %tid
%a.val = load volatile i16, i16 addrspace(1)* %a.gep
%b.val = load volatile i16, i16 addrspace(1)* %b.gep
%c.val = load volatile i16, i16 addrspace(1)* %c.gep
%m.val = mul i16 %a.val, %b.val
%r.val = add i16 %m.val, %c.val
store i16 %r.val, i16 addrspace(1)* %r
ret void
}
declare i32 @llvm.amdgcn.workitem.id.x()

42
test/CodeGen/AMDGPU/min.ll
View File

@ -1,6 +1,7 @@
; RUN: llc -march=amdgcn -mtriple=amdgcn-amd-amdhsa -mcpu=kaveri -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mtriple=amdgcn-amd-amdhsa -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI -check-prefix=GFX89 -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX9 -check-prefix=GFX89 -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mtriple=amdgcn-amd-amdhsa -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI -check-prefix=GFX8_9_10 -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX9 -check-prefix=GFX9_10 -check-prefix=GFX8_9_10 -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX10 -check-prefix=GFX9_10 -check-prefix=GFX8_9_10 -check-prefix=FUNC %s
; RUN: llc -march=r600 -mtriple=r600-- -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
; FUNC-LABEL: {{^}}v_test_imin_sle_i32:
@ -74,8 +75,9 @@ define amdgpu_kernel void @s_test_imin_sle_i8(i8 addrspace(1)* %out, [8 x i32],
; FIXME: Why vector and sdwa for last element?
; FUNC-LABEL: {{^}}s_test_imin_sle_v4i8:
; GCN: s_load_dword s
; GCN: s_load_dword s
; GCN-DAG: s_load_dwordx2
; GCN-DAG: s_load_dword s
; GCN-DAG: s_load_dword s
; GCN-NOT: _load_
; SI: s_min_i32
@ -88,10 +90,10 @@ define amdgpu_kernel void @s_test_imin_sle_i8(i8 addrspace(1)* %out, [8 x i32],
; VI: s_min_i32
; VI: v_min_i32_sdwa
; GFX9: v_min_i16
; GFX9: v_min_i16
; GFX9: v_min_i16
; GFX9: v_min_i16
; GFX9_10: v_min_i16
; GFX9_10: v_min_i16
; GFX9_10: v_min_i16
; GFX9_10: v_min_i16
; EG: MIN_INT
; EG: MIN_INT
@ -120,7 +122,7 @@ define amdgpu_kernel void @s_test_imin_sle_v4i8(<4 x i8> addrspace(1)* %out, [8
; VI: s_min_i32
; VI: s_min_i32
; GFX9: v_pk_min_i16
; GFX9_10: v_pk_min_i16
; EG: MIN_INT
; EG: MIN_INT
@ -143,8 +145,8 @@ define amdgpu_kernel void @s_test_imin_sle_v2i16(<2 x i16> addrspace(1)* %out, <
; VI: s_min_i32
; VI: s_min_i32
; GFX9: v_pk_min_i16
; GFX9: v_pk_min_i16
; GFX9_10: v_pk_min_i16
; GFX9_10: v_pk_min_i16
; EG: MIN_INT
; EG: MIN_INT
@ -177,7 +179,8 @@ define amdgpu_kernel void @v_test_imin_slt_i32(i32 addrspace(1)* %out, i32 addrs
; FUNC-LABEL: @v_test_imin_slt_i16
; SI: v_min_i32_e32
; GFX89: v_min_i16_e32
; GFX8_9: v_min_i16_e32
; GFX10: v_min_i16_e64
; EG: MIN_INT
define amdgpu_kernel void @v_test_imin_slt_i16(i16 addrspace(1)* %out, i16 addrspace(1)* %aptr, i16 addrspace(1)* %bptr) #0 {
@ -293,8 +296,8 @@ define amdgpu_kernel void @v_test_umin_ule_v3i32(<3 x i32> addrspace(1)* %out, <
; VI: v_min_u16_e32
; VI-NOT: v_min_u16
; GFX9: v_pk_min_u16
; GFX9: v_pk_min_u16
; GFX9_10: v_pk_min_u16
; GFX9_10: v_pk_min_u16
; GCN: s_endpgm
@ -348,9 +351,10 @@ define amdgpu_kernel void @v_test_umin_ult_i32(i32 addrspace(1)* %out, i32 addrs
; SI: {{buffer|flat|global}}_load_ubyte
; SI: v_min_u32_e32
; GFX89: {{flat|global}}_load_ubyte
; GFX89: {{flat|global}}_load_ubyte
; GFX89: v_min_u16_e32
; GFX8_9_10: {{flat|global}}_load_ubyte
; GFX8_9_10: {{flat|global}}_load_ubyte
; GFX8_9: v_min_u16_e32
; GFX10: v_min_u16_e64
; EG: MIN_UINT
define amdgpu_kernel void @v_test_umin_ult_i8(i8 addrspace(1)* %out, i8 addrspace(1)* %a.ptr, i8 addrspace(1)* %b.ptr) #0 {
@ -597,7 +601,7 @@ define amdgpu_kernel void @test_imin_sle_i64(i64 addrspace(1)* %out, i64 %a, i64
; VI: v_min_i16
; VI: v_min_i16
; GFX9: v_pk_min_i16
; GFX9_10: v_pk_min_i16
; EG: MIN_INT
; EG: MIN_INT
@ -622,7 +626,7 @@ define amdgpu_kernel void @v_test_imin_sle_v2i16(<2 x i16> addrspace(1)* %out, <
; VI: v_min_u16
; VI: v_min_u16
; GFX9: v_pk_min_u16
; GFX9_10: v_pk_min_u16
; EG: MIN_UINT
; EG: MIN_UINT