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|
; RUN: llc -mtriple=amdgcn--amdpal -mcpu=verde -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; RUN: llc -mtriple=amdgcn--amdpal -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; GCN-LABEL: {{^}}fold_mi_v_and_0:
; GCN: v_mov_b32_e32 [[RESULT:v[0-9]+]], 0{{$}}
; GCN-NOT: [[RESULT]]
; GCN: buffer_store_dword [[RESULT]]
define amdgpu_kernel void @fold_mi_v_and_0(ptr addrspace(1) %out) {
%x = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #0
%size = call i32 @llvm.amdgcn.groupstaticsize()
%and = and i32 %size, %x
store i32 %and, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_s_and_0:
; GCN: v_mov_b32_e32 [[RESULT:v[0-9]+]], 0{{$}}
; GCN-NOT: [[RESULT]]
; GCN: buffer_store_dword [[RESULT]]
define amdgpu_kernel void @fold_mi_s_and_0(ptr addrspace(1) %out, i32 %x) #0 {
%size = call i32 @llvm.amdgcn.groupstaticsize()
%and = and i32 %size, %x
store i32 %and, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_v_or_0:
; GCN: v_mbcnt_lo_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]]
; GCN-NOT: [[RESULT]]
; GCN: buffer_store_dword [[RESULT]]
define amdgpu_kernel void @fold_mi_v_or_0(ptr addrspace(1) %out) {
%x = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #0
%size = call i32 @llvm.amdgcn.groupstaticsize()
%or = or i32 %size, %x
store i32 %or, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_s_or_0:
; GCN: s_load_dword [[SVAL:s[0-9]+]]
; GCN-NOT: [[SVAL]]
; GCN: v_mov_b32_e32 [[VVAL:v[0-9]+]], [[SVAL]]
; GCN-NOT: [[VVAL]]
; GCN: buffer_store_dword [[VVAL]]
define amdgpu_kernel void @fold_mi_s_or_0(ptr addrspace(1) %out, i32 %x) #0 {
%size = call i32 @llvm.amdgcn.groupstaticsize()
%or = or i32 %size, %x
store i32 %or, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_v_xor_0:
; GCN: v_mbcnt_lo_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]]
; GCN-NOT: [[RESULT]]
; GCN: buffer_store_dword [[RESULT]]
define amdgpu_kernel void @fold_mi_v_xor_0(ptr addrspace(1) %out) {
%x = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #0
%size = call i32 @llvm.amdgcn.groupstaticsize()
%xor = xor i32 %size, %x
store i32 %xor, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_s_xor_0:
; GCN: s_load_dword [[SVAL:s[0-9]+]]
; GCN-NOT: [[SVAL]]
; GCN: v_mov_b32_e32 [[VVAL:v[0-9]+]], [[SVAL]]
; GCN-NOT: [[VVAL]]
; GCN: buffer_store_dword [[VVAL]]
define amdgpu_kernel void @fold_mi_s_xor_0(ptr addrspace(1) %out, i32 %x) #0 {
%size = call i32 @llvm.amdgcn.groupstaticsize()
%xor = xor i32 %size, %x
store i32 %xor, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_s_not_0:
; GCN: v_mov_b32_e32 [[RESULT:v[0-9]+]], -1{{$}}
; GCN-NOT: [[RESULT]]
; GCN: buffer_store_dword [[RESULT]]
define amdgpu_kernel void @fold_mi_s_not_0(ptr addrspace(1) %out, i32 %x) #0 {
%size = call i32 @llvm.amdgcn.groupstaticsize()
%xor = xor i32 %size, -1
store i32 %xor, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_v_not_0:
; GCN: v_bcnt_u32_b32{{(_e64)*}} v[[RESULT_LO:[0-9]+]], v{{[0-9]+}}, 0{{$}}
; GCN: v_bcnt_u32_b32{{(_e32)*(_e64)*}} v[[RESULT_LO:[0-9]+]], v{{[0-9]+}}, v[[RESULT_LO]]{{$}}
; GCN-NEXT: v_not_b32_e32 v[[RESULT_LO]]
; GCN-NEXT: v_mov_b32_e32 v[[RESULT_HI:[0-9]+]], -1{{$}}
; GCN-NEXT: buffer_store_dwordx2 v[[[RESULT_LO]]:[[RESULT_HI]]]
define amdgpu_kernel void @fold_mi_v_not_0(ptr addrspace(1) %out) {
%vreg = load volatile i64, ptr addrspace(1) undef
%ctpop = call i64 @llvm.ctpop.i64(i64 %vreg)
%xor = xor i64 %ctpop, -1
store i64 %xor, ptr addrspace(1) %out
ret void
}
; The neg1 appears after folding the not 0
; GCN-LABEL: {{^}}fold_mi_or_neg1:
; GCN: buffer_load_dwordx2
; GCN: buffer_load_dwordx2 v[[[VREG1_LO:[0-9]+]]:[[VREG1_HI:[0-9]+]]]
; GCN: v_bcnt_u32_b32{{(_e64)*}} v[[RESULT_LO:[0-9]+]], v{{[0-9]+}}, 0{{$}}
; GCN: v_bcnt_u32_b32{{(_e32)*(_e64)*}} v[[RESULT_LO:[0-9]+]], v{{[0-9]+}}, v[[RESULT_LO]]{{$}}
; GCN-DAG: v_not_b32_e32 v[[RESULT_LO]], v[[RESULT_LO]]
; GCN-DAG: v_or_b32_e32 v[[RESULT_LO]], v[[VREG1_LO]], v[[RESULT_LO]]
; GCN-DAG: v_mov_b32_e32 v[[RESULT_HI:[0-9]+]], v[[VREG1_HI]]
; GCN: buffer_store_dwordx2 v[[[RESULT_LO]]:[[RESULT_HI]]]
define amdgpu_kernel void @fold_mi_or_neg1(ptr addrspace(1) %out) {
%vreg0 = load volatile i64, ptr addrspace(1) undef
%vreg1 = load volatile i64, ptr addrspace(1) undef
%ctpop = call i64 @llvm.ctpop.i64(i64 %vreg0)
%xor = xor i64 %ctpop, -1
%or = or i64 %xor, %vreg1
store i64 %or, ptr addrspace(1) %out
ret void
}
; GCN-LABEL: {{^}}fold_mi_and_neg1:
; GCN: v_bcnt_u32_b32
; GCN: v_bcnt_u32_b32
; GCN: v_not_b32
; GCN: v_and_b32
; GCN-NOT: v_and_b32
define amdgpu_kernel void @fold_mi_and_neg1(ptr addrspace(1) %out) {
%vreg0 = load volatile i64, ptr addrspace(1) undef
%vreg1 = load volatile i64, ptr addrspace(1) undef
%ctpop = call i64 @llvm.ctpop.i64(i64 %vreg0)
%xor = xor i64 %ctpop, -1
%and = and i64 %xor, %vreg1
store i64 %and, ptr addrspace(1) %out
ret void
}
declare i64 @llvm.ctpop.i64(i64) #1
declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #1
declare i32 @llvm.amdgcn.groupstaticsize() #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
|
