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      1 ; RUN: llc -show-mc-encoding -mattr=+promote-alloca -disable-promote-alloca-to-vector -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -march=amdgcn < %s | FileCheck -enable-var-scope -check-prefix=SI-PROMOTE -check-prefix=SI -check-prefix=FUNC %s
      2 ; RUN: llc -show-mc-encoding -mattr=+promote-alloca -disable-promote-alloca-to-vector -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -mtriple=amdgcn--amdhsa -mcpu=kaveri -mattr=-unaligned-buffer-access < %s | FileCheck -enable-var-scope -check-prefix=SI-PROMOTE -check-prefix=SI -check-prefix=FUNC -check-prefix=HSA-PROMOTE %s
      3 ; RUN: llc -show-mc-encoding -mattr=-promote-alloca -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -march=amdgcn < %s | FileCheck %s -check-prefix=SI-ALLOCA -check-prefix=SI -check-prefix=FUNC
      4 ; RUN: llc -show-mc-encoding -mattr=-promote-alloca -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -mtriple=amdgcn-amdhsa -mcpu=kaveri -mattr=-unaligned-buffer-access < %s | FileCheck -enable-var-scope -check-prefix=SI-ALLOCA -check-prefix=SI -check-prefix=FUNC -check-prefix=HSA-ALLOCA %s
      5 ; RUN: llc -show-mc-encoding -mattr=+promote-alloca -disable-promote-alloca-to-vector -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -mtriple=amdgcn-amdhsa -march=amdgcn -mcpu=tonga -mattr=-unaligned-buffer-access < %s | FileCheck -enable-var-scope -check-prefix=SI-PROMOTE -check-prefix=SI -check-prefix=FUNC %s
      6 ; RUN: llc -show-mc-encoding -mattr=+promote-alloca -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -mtriple=amdgcn-amdhsa -march=amdgcn -mcpu=tonga -mattr=-unaligned-buffer-access < %s | FileCheck -enable-var-scope -check-prefix=SI-PROMOTE-VECT -check-prefix=SI -check-prefix=FUNC %s
      7 ; RUN: llc -show-mc-encoding -mattr=-promote-alloca -amdgpu-load-store-vectorizer=0 -enable-amdgpu-aa=0 -verify-machineinstrs -mtriple=amdgcn-amdhsa -march=amdgcn -mcpu=tonga -mattr=-unaligned-buffer-access < %s | FileCheck -enable-var-scope -check-prefix=SI-ALLOCA -check-prefix=SI -check-prefix=FUNC %s
      8 
      9 ; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -data-layout=A5 -mcpu=kaveri -amdgpu-promote-alloca -disable-promote-alloca-to-vector < %s | FileCheck -enable-var-scope -check-prefix=HSAOPT -check-prefix=OPT %s
     10 ; RUN: opt -S -mtriple=amdgcn-unknown-unknown -data-layout=A5 -mcpu=kaveri -amdgpu-promote-alloca -disable-promote-alloca-to-vector < %s | FileCheck -enable-var-scope -check-prefix=NOHSAOPT -check-prefix=OPT %s
     11 
     12 ; RUN: llc -march=r600 -mcpu=cypress -disable-promote-alloca-to-vector < %s | FileCheck %s -check-prefix=R600 -check-prefix=FUNC
     13 ; RUN: llc -march=r600 -mcpu=cypress < %s | FileCheck %s -check-prefix=R600-VECT -check-prefix=FUNC
     14 
     15 ; HSAOPT: @mova_same_clause.stack = internal unnamed_addr addrspace(3) global [256 x [5 x i32]] undef, align 4
     16 ; HSAOPT: @high_alignment.stack = internal unnamed_addr addrspace(3) global [256 x [8 x i32]] undef, align 16
     17 
     18 
     19 ; FUNC-LABEL: {{^}}mova_same_clause:
     20 ; OPT-LABEL: @mova_same_clause(
     21 
     22 ; R600: LDS_WRITE
     23 ; R600: LDS_WRITE
     24 ; R600: LDS_READ
     25 ; R600: LDS_READ
     26 
     27 ; HSA-PROMOTE: .amd_kernel_code_t
     28 ; HSA-PROMOTE: workgroup_group_segment_byte_size = 5120
     29 ; HSA-PROMOTE: .end_amd_kernel_code_t
     30 
     31 ; HSA-PROMOTE: s_load_dword s{{[0-9]+}}, s[4:5], 0x2
     32 
     33 ; SI-PROMOTE: ds_write_b32
     34 ; SI-PROMOTE: ds_write_b32
     35 ; SI-PROMOTE: ds_read_b32
     36 ; SI-PROMOTE: ds_read_b32
     37 
     38 ; HSA-ALLOCA: .amd_kernel_code_t
     39 ; FIXME: Creating the emergency stack slots causes us to over-estimate scratch
     40 ; by 4 bytes.
     41 ; HSA-ALLOCA: workitem_private_segment_byte_size = 24
     42 ; HSA-ALLOCA: .end_amd_kernel_code_t
     43 
     44 ; HSA-ALLOCA: s_mov_b32 flat_scratch_lo, s7
     45 ; HSA-ALLOCA: s_add_u32 s6, s6, s9
     46 ; HSA-ALLOCA: s_lshr_b32 flat_scratch_hi, s6, 8
     47 
     48 ; SI-ALLOCA: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; encoding: [0x00,0x10,0x70,0xe0
     49 ; SI-ALLOCA: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; encoding: [0x00,0x10,0x70,0xe0
     50 
     51 
     52 ; HSAOPT: [[DISPATCH_PTR:%[0-9]+]] = call noalias nonnull dereferenceable(64) i8 addrspace(4)* @llvm.amdgcn.dispatch.ptr()
     53 ; HSAOPT: [[CAST_DISPATCH_PTR:%[0-9]+]] = bitcast i8 addrspace(4)* [[DISPATCH_PTR]] to i32 addrspace(4)*
     54 ; HSAOPT: [[GEP0:%[0-9]+]] = getelementptr inbounds i32, i32 addrspace(4)* [[CAST_DISPATCH_PTR]], i64 1
     55 ; HSAOPT: [[LDXY:%[0-9]+]] = load i32, i32 addrspace(4)* [[GEP0]], align 4, !invariant.load !0
     56 ; HSAOPT: [[GEP1:%[0-9]+]] = getelementptr inbounds i32, i32 addrspace(4)* [[CAST_DISPATCH_PTR]], i64 2
     57 ; HSAOPT: [[LDZU:%[0-9]+]] = load i32, i32 addrspace(4)* [[GEP1]], align 4, !range !1, !invariant.load !0
     58 ; HSAOPT: [[EXTRACTY:%[0-9]+]] = lshr i32 [[LDXY]], 16
     59 
     60 ; HSAOPT: [[WORKITEM_ID_X:%[0-9]+]] = call i32 @llvm.amdgcn.workitem.id.x(), !range !2
     61 ; HSAOPT: [[WORKITEM_ID_Y:%[0-9]+]] = call i32 @llvm.amdgcn.workitem.id.y(), !range !2
     62 ; HSAOPT: [[WORKITEM_ID_Z:%[0-9]+]] = call i32 @llvm.amdgcn.workitem.id.z(), !range !2
     63 
     64 ; HSAOPT: [[Y_SIZE_X_Z_SIZE:%[0-9]+]] = mul nuw nsw i32 [[EXTRACTY]], [[LDZU]]
     65 ; HSAOPT: [[YZ_X_XID:%[0-9]+]] = mul i32 [[Y_SIZE_X_Z_SIZE]], [[WORKITEM_ID_X]]
     66 ; HSAOPT: [[Y_X_Z_SIZE:%[0-9]+]] = mul nuw nsw i32 [[WORKITEM_ID_Y]], [[LDZU]]
     67 ; HSAOPT: [[ADD_YZ_X_X_YZ_SIZE:%[0-9]+]] = add i32 [[YZ_X_XID]], [[Y_X_Z_SIZE]]
     68 ; HSAOPT: [[ADD_ZID:%[0-9]+]] = add i32 [[ADD_YZ_X_X_YZ_SIZE]], [[WORKITEM_ID_Z]]
     69 
     70 ; HSAOPT: [[LOCAL_GEP:%[0-9]+]] = getelementptr inbounds [256 x [5 x i32]], [256 x [5 x i32]] addrspace(3)* @mova_same_clause.stack, i32 0, i32 [[ADD_ZID]]
     71 ; HSAOPT: %arrayidx1 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(3)* [[LOCAL_GEP]], i32 0, i32 {{%[0-9]+}}
     72 ; HSAOPT: %arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(3)* [[LOCAL_GEP]], i32 0, i32 {{%[0-9]+}}
     73 ; HSAOPT: %arrayidx10 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(3)* [[LOCAL_GEP]], i32 0, i32 0
     74 ; HSAOPT: %arrayidx12 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(3)* [[LOCAL_GEP]], i32 0, i32 1
     75 
     76 
     77 ; NOHSAOPT: call i32 @llvm.r600.read.local.size.y(), !range !0
     78 ; NOHSAOPT: call i32 @llvm.r600.read.local.size.z(), !range !0
     79 ; NOHSAOPT: call i32 @llvm.amdgcn.workitem.id.x(), !range !1
     80 ; NOHSAOPT: call i32 @llvm.amdgcn.workitem.id.y(), !range !1
     81 ; NOHSAOPT: call i32 @llvm.amdgcn.workitem.id.z(), !range !1
     82 define amdgpu_kernel void @mova_same_clause(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) #0 {
     83 entry:
     84   %stack = alloca [5 x i32], align 4, addrspace(5)
     85   %0 = load i32, i32 addrspace(1)* %in, align 4
     86   %arrayidx1 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 %0
     87   store i32 4, i32 addrspace(5)* %arrayidx1, align 4
     88   %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
     89   %1 = load i32, i32 addrspace(1)* %arrayidx2, align 4
     90   %arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 %1
     91   store i32 5, i32 addrspace(5)* %arrayidx3, align 4
     92   %arrayidx10 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 0
     93   %2 = load i32, i32 addrspace(5)* %arrayidx10, align 4
     94   store i32 %2, i32 addrspace(1)* %out, align 4
     95   %arrayidx12 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 1
     96   %3 = load i32, i32 addrspace(5)* %arrayidx12
     97   %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1
     98   store i32 %3, i32 addrspace(1)* %arrayidx13
     99   ret void
    100 }
    101 
    102 ; OPT-LABEL: @high_alignment(
    103 ; OPT: getelementptr inbounds [256 x [8 x i32]], [256 x [8 x i32]] addrspace(3)* @high_alignment.stack, i32 0, i32 %{{[0-9]+}}
    104 define amdgpu_kernel void @high_alignment(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) #0 {
    105 entry:
    106   %stack = alloca [8 x i32], align 16, addrspace(5)
    107   %0 = load i32, i32 addrspace(1)* %in, align 4
    108   %arrayidx1 = getelementptr inbounds [8 x i32], [8 x i32] addrspace(5)* %stack, i32 0, i32 %0
    109   store i32 4, i32 addrspace(5)* %arrayidx1, align 4
    110   %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
    111   %1 = load i32, i32 addrspace(1)* %arrayidx2, align 4
    112   %arrayidx3 = getelementptr inbounds [8 x i32], [8 x i32] addrspace(5)* %stack, i32 0, i32 %1
    113   store i32 5, i32 addrspace(5)* %arrayidx3, align 4
    114   %arrayidx10 = getelementptr inbounds [8 x i32], [8 x i32] addrspace(5)* %stack, i32 0, i32 0
    115   %2 = load i32, i32 addrspace(5)* %arrayidx10, align 4
    116   store i32 %2, i32 addrspace(1)* %out, align 4
    117   %arrayidx12 = getelementptr inbounds [8 x i32], [8 x i32] addrspace(5)* %stack, i32 0, i32 1
    118   %3 = load i32, i32 addrspace(5)* %arrayidx12
    119   %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1
    120   store i32 %3, i32 addrspace(1)* %arrayidx13
    121   ret void
    122 }
    123 
    124 ; FUNC-LABEL: {{^}}no_replace_inbounds_gep:
    125 ; OPT-LABEL: @no_replace_inbounds_gep(
    126 ; OPT: alloca [5 x i32]
    127 
    128 ; SI-NOT: ds_write
    129 define amdgpu_kernel void @no_replace_inbounds_gep(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) #0 {
    130 entry:
    131   %stack = alloca [5 x i32], align 4, addrspace(5)
    132   %0 = load i32, i32 addrspace(1)* %in, align 4
    133   %arrayidx1 = getelementptr [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 %0
    134   store i32 4, i32 addrspace(5)* %arrayidx1, align 4
    135   %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
    136   %1 = load i32, i32 addrspace(1)* %arrayidx2, align 4
    137   %arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 %1
    138   store i32 5, i32 addrspace(5)* %arrayidx3, align 4
    139   %arrayidx10 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 0
    140   %2 = load i32, i32 addrspace(5)* %arrayidx10, align 4
    141   store i32 %2, i32 addrspace(1)* %out, align 4
    142   %arrayidx12 = getelementptr inbounds [5 x i32], [5 x i32] addrspace(5)* %stack, i32 0, i32 1
    143   %3 = load i32, i32 addrspace(5)* %arrayidx12
    144   %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1
    145   store i32 %3, i32 addrspace(1)* %arrayidx13
    146   ret void
    147 }
    148 
    149 ; This test checks that the stack offset is calculated correctly for structs.
    150 ; All register loads/stores should be optimized away, so there shouldn't be
    151 ; any MOVA instructions.
    152 ;
    153 ; XXX: This generated code has unnecessary MOVs, we should be able to optimize
    154 ; this.
    155 
    156 ; FUNC-LABEL: {{^}}multiple_structs:
    157 ; OPT-LABEL: @multiple_structs(
    158 
    159 ; R600-NOT: MOVA_INT
    160 ; SI-NOT: v_movrel
    161 ; SI-NOT: v_movrel
    162 %struct.point = type { i32, i32 }
    163 
    164 define amdgpu_kernel void @multiple_structs(i32 addrspace(1)* %out) #0 {
    165 entry:
    166   %a = alloca %struct.point, addrspace(5)
    167   %b = alloca %struct.point, addrspace(5)
    168   %a.x.ptr = getelementptr %struct.point, %struct.point addrspace(5)* %a, i32 0, i32 0
    169   %a.y.ptr = getelementptr %struct.point, %struct.point addrspace(5)* %a, i32 0, i32 1
    170   %b.x.ptr = getelementptr %struct.point, %struct.point addrspace(5)* %b, i32 0, i32 0
    171   %b.y.ptr = getelementptr %struct.point, %struct.point addrspace(5)* %b, i32 0, i32 1
    172   store i32 0, i32 addrspace(5)* %a.x.ptr
    173   store i32 1, i32 addrspace(5)* %a.y.ptr
    174   store i32 2, i32 addrspace(5)* %b.x.ptr
    175   store i32 3, i32 addrspace(5)* %b.y.ptr
    176   %a.indirect.ptr = getelementptr %struct.point, %struct.point addrspace(5)* %a, i32 0, i32 0
    177   %b.indirect.ptr = getelementptr %struct.point, %struct.point addrspace(5)* %b, i32 0, i32 0
    178   %a.indirect = load i32, i32 addrspace(5)* %a.indirect.ptr
    179   %b.indirect = load i32, i32 addrspace(5)* %b.indirect.ptr
    180   %0 = add i32 %a.indirect, %b.indirect
    181   store i32 %0, i32 addrspace(1)* %out
    182   ret void
    183 }
    184 
    185 ; Test direct access of a private array inside a loop.  The private array
    186 ; loads and stores should be lowered to copies, so there shouldn't be any
    187 ; MOVA instructions.
    188 
    189 ; FUNC-LABEL: {{^}}direct_loop:
    190 ; R600-NOT: MOVA_INT
    191 ; SI-NOT: v_movrel
    192 
    193 define amdgpu_kernel void @direct_loop(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
    194 entry:
    195   %prv_array_const = alloca [2 x i32], addrspace(5)
    196   %prv_array = alloca [2 x i32], addrspace(5)
    197   %a = load i32, i32 addrspace(1)* %in
    198   %b_src_ptr = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
    199   %b = load i32, i32 addrspace(1)* %b_src_ptr
    200   %a_dst_ptr = getelementptr inbounds [2 x i32], [2 x i32] addrspace(5)* %prv_array_const, i32 0, i32 0
    201   store i32 %a, i32 addrspace(5)* %a_dst_ptr
    202   %b_dst_ptr = getelementptr inbounds [2 x i32], [2 x i32] addrspace(5)* %prv_array_const, i32 0, i32 1
    203   store i32 %b, i32 addrspace(5)* %b_dst_ptr
    204   br label %for.body
    205 
    206 for.body:
    207   %inc = phi i32 [0, %entry], [%count, %for.body]
    208   %x_ptr = getelementptr inbounds [2 x i32], [2 x i32] addrspace(5)* %prv_array_const, i32 0, i32 0
    209   %x = load i32, i32 addrspace(5)* %x_ptr
    210   %y_ptr = getelementptr inbounds [2 x i32], [2 x i32] addrspace(5)* %prv_array, i32 0, i32 0
    211   %y = load i32, i32 addrspace(5)* %y_ptr
    212   %xy = add i32 %x, %y
    213   store i32 %xy, i32 addrspace(5)* %y_ptr
    214   %count = add i32 %inc, 1
    215   %done = icmp eq i32 %count, 4095
    216   br i1 %done, label %for.end, label %for.body
    217 
    218 for.end:
    219   %value_ptr = getelementptr inbounds [2 x i32], [2 x i32] addrspace(5)* %prv_array, i32 0, i32 0
    220   %value = load i32, i32 addrspace(5)* %value_ptr
    221   store i32 %value, i32 addrspace(1)* %out
    222   ret void
    223 }
    224 
    225 ; FUNC-LABEL: {{^}}short_array:
    226 
    227 ; R600-VECT: MOVA_INT
    228 
    229 ; SI-ALLOCA-DAG: buffer_store_short v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offset:6 ; encoding: [0x06,0x00,0x68,0xe0
    230 ; SI-ALLOCA-DAG: buffer_store_short v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offset:4 ; encoding: [0x04,0x00,0x68,0xe0
    231 ; Loaded value is 0 or 1, so sext will become zext, so we get buffer_load_ushort instead of buffer_load_sshort.
    232 ; SI-ALLOCA: buffer_load_sshort v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}}
    233 
    234 ; SI-PROMOTE-VECT: s_load_dword [[IDX:s[0-9]+]]
    235 ; SI-PROMOTE-VECT: s_lshl_b32 [[SCALED_IDX:s[0-9]+]], [[IDX]], 4
    236 ; SI-PROMOTE-VECT: v_bfe_u32 v{{[0-9]+}}, v{{[0-9]+}}, [[SCALED_IDX]], 16
    237 define amdgpu_kernel void @short_array(i32 addrspace(1)* %out, i32 %index) #0 {
    238 entry:
    239   %0 = alloca [2 x i16], addrspace(5)
    240   %1 = getelementptr inbounds [2 x i16], [2 x i16] addrspace(5)* %0, i32 0, i32 0
    241   %2 = getelementptr inbounds [2 x i16], [2 x i16] addrspace(5)* %0, i32 0, i32 1
    242   store i16 0, i16 addrspace(5)* %1
    243   store i16 1, i16 addrspace(5)* %2
    244   %3 = getelementptr inbounds [2 x i16], [2 x i16] addrspace(5)* %0, i32 0, i32 %index
    245   %4 = load i16, i16 addrspace(5)* %3
    246   %5 = sext i16 %4 to i32
    247   store i32 %5, i32 addrspace(1)* %out
    248   ret void
    249 }
    250 
    251 ; FUNC-LABEL: {{^}}char_array:
    252 
    253 ; R600-VECT: MOVA_INT
    254 
    255 ; SI-PROMOTE-VECT-DAG: s_lshl_b32
    256 ; SI-PROMOTE-VECT-DAG: v_lshrrev
    257 
    258 ; SI-ALLOCA-DAG: buffer_store_byte v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offset:4 ; encoding: [0x04,0x00,0x60,0xe0
    259 ; SI-ALLOCA-DAG: buffer_store_byte v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offset:5 ; encoding: [0x05,0x00,0x60,0xe0
    260 define amdgpu_kernel void @char_array(i32 addrspace(1)* %out, i32 %index) #0 {
    261 entry:
    262   %0 = alloca [2 x i8], addrspace(5)
    263   %1 = getelementptr inbounds [2 x i8], [2 x i8] addrspace(5)* %0, i32 0, i32 0
    264   %2 = getelementptr inbounds [2 x i8], [2 x i8] addrspace(5)* %0, i32 0, i32 1
    265   store i8 0, i8 addrspace(5)* %1
    266   store i8 1, i8 addrspace(5)* %2
    267   %3 = getelementptr inbounds [2 x i8], [2 x i8] addrspace(5)* %0, i32 0, i32 %index
    268   %4 = load i8, i8 addrspace(5)* %3
    269   %5 = sext i8 %4 to i32
    270   store i32 %5, i32 addrspace(1)* %out
    271   ret void
    272 }
    273 
    274 ; Test that two stack objects are not stored in the same register
    275 ; The second stack object should be in T3.X
    276 ; FUNC-LABEL: {{^}}no_overlap:
    277 ; R600-CHECK: MOV
    278 ; R600-CHECK: [[CHAN:[XYZW]]]+
    279 ; R600-NOT: [[CHAN]]+
    280 ;
    281 ; A total of 5 bytes should be allocated and used.
    282 ; SI: buffer_store_byte v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offset:4 ;
    283 define amdgpu_kernel void @no_overlap(i32 addrspace(1)* %out, i32 %in) #0 {
    284 entry:
    285   %0 = alloca [3 x i8], align 1, addrspace(5)
    286   %1 = alloca [2 x i8], align 1, addrspace(5)
    287   %2 = getelementptr [3 x i8], [3 x i8] addrspace(5)* %0, i32 0, i32 0
    288   %3 = getelementptr [3 x i8], [3 x i8] addrspace(5)* %0, i32 0, i32 1
    289   %4 = getelementptr [3 x i8], [3 x i8] addrspace(5)* %0, i32 0, i32 2
    290   %5 = getelementptr [2 x i8], [2 x i8] addrspace(5)* %1, i32 0, i32 0
    291   %6 = getelementptr [2 x i8], [2 x i8] addrspace(5)* %1, i32 0, i32 1
    292   store i8 0, i8 addrspace(5)* %2
    293   store i8 1, i8 addrspace(5)* %3
    294   store i8 2, i8 addrspace(5)* %4
    295   store i8 1, i8 addrspace(5)* %5
    296   store i8 0, i8 addrspace(5)* %6
    297   %7 = getelementptr [3 x i8], [3 x i8] addrspace(5)* %0, i32 0, i32 %in
    298   %8 = getelementptr [2 x i8], [2 x i8] addrspace(5)* %1, i32 0, i32 %in
    299   %9 = load i8, i8 addrspace(5)* %7
    300   %10 = load i8, i8 addrspace(5)* %8
    301   %11 = add i8 %9, %10
    302   %12 = sext i8 %11 to i32
    303   store i32 %12, i32 addrspace(1)* %out
    304   ret void
    305 }
    306 
    307 define amdgpu_kernel void @char_array_array(i32 addrspace(1)* %out, i32 %index) #0 {
    308 entry:
    309   %alloca = alloca [2 x [2 x i8]], addrspace(5)
    310   %gep0 = getelementptr [2 x [2 x i8]], [2 x [2 x i8]] addrspace(5)* %alloca, i32 0, i32 0, i32 0
    311   %gep1 = getelementptr [2 x [2 x i8]], [2 x [2 x i8]] addrspace(5)* %alloca, i32 0, i32 0, i32 1
    312   store i8 0, i8 addrspace(5)* %gep0
    313   store i8 1, i8 addrspace(5)* %gep1
    314   %gep2 = getelementptr [2 x [2 x i8]], [2 x [2 x i8]] addrspace(5)* %alloca, i32 0, i32 0, i32 %index
    315   %load = load i8, i8 addrspace(5)* %gep2
    316   %sext = sext i8 %load to i32
    317   store i32 %sext, i32 addrspace(1)* %out
    318   ret void
    319 }
    320 
    321 define amdgpu_kernel void @i32_array_array(i32 addrspace(1)* %out, i32 %index) #0 {
    322 entry:
    323   %alloca = alloca [2 x [2 x i32]], addrspace(5)
    324   %gep0 = getelementptr [2 x [2 x i32]], [2 x [2 x i32]] addrspace(5)* %alloca, i32 0, i32 0, i32 0
    325   %gep1 = getelementptr [2 x [2 x i32]], [2 x [2 x i32]] addrspace(5)* %alloca, i32 0, i32 0, i32 1
    326   store i32 0, i32 addrspace(5)* %gep0
    327   store i32 1, i32 addrspace(5)* %gep1
    328   %gep2 = getelementptr [2 x [2 x i32]], [2 x [2 x i32]] addrspace(5)* %alloca, i32 0, i32 0, i32 %index
    329   %load = load i32, i32 addrspace(5)* %gep2
    330   store i32 %load, i32 addrspace(1)* %out
    331   ret void
    332 }
    333 
    334 define amdgpu_kernel void @i64_array_array(i64 addrspace(1)* %out, i32 %index) #0 {
    335 entry:
    336   %alloca = alloca [2 x [2 x i64]], addrspace(5)
    337   %gep0 = getelementptr [2 x [2 x i64]], [2 x [2 x i64]] addrspace(5)* %alloca, i32 0, i32 0, i32 0
    338   %gep1 = getelementptr [2 x [2 x i64]], [2 x [2 x i64]] addrspace(5)* %alloca, i32 0, i32 0, i32 1
    339   store i64 0, i64 addrspace(5)* %gep0
    340   store i64 1, i64 addrspace(5)* %gep1
    341   %gep2 = getelementptr [2 x [2 x i64]], [2 x [2 x i64]] addrspace(5)* %alloca, i32 0, i32 0, i32 %index
    342   %load = load i64, i64 addrspace(5)* %gep2
    343   store i64 %load, i64 addrspace(1)* %out
    344   ret void
    345 }
    346 
    347 %struct.pair32 = type { i32, i32 }
    348 
    349 define amdgpu_kernel void @struct_array_array(i32 addrspace(1)* %out, i32 %index) #0 {
    350 entry:
    351   %alloca = alloca [2 x [2 x %struct.pair32]], addrspace(5)
    352   %gep0 = getelementptr [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]] addrspace(5)* %alloca, i32 0, i32 0, i32 0, i32 1
    353   %gep1 = getelementptr [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]] addrspace(5)* %alloca, i32 0, i32 0, i32 1, i32 1
    354   store i32 0, i32 addrspace(5)* %gep0
    355   store i32 1, i32 addrspace(5)* %gep1
    356   %gep2 = getelementptr [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]] addrspace(5)* %alloca, i32 0, i32 0, i32 %index, i32 0
    357   %load = load i32, i32 addrspace(5)* %gep2
    358   store i32 %load, i32 addrspace(1)* %out
    359   ret void
    360 }
    361 
    362 define amdgpu_kernel void @struct_pair32_array(i32 addrspace(1)* %out, i32 %index) #0 {
    363 entry:
    364   %alloca = alloca [2 x %struct.pair32], addrspace(5)
    365   %gep0 = getelementptr [2 x %struct.pair32], [2 x %struct.pair32] addrspace(5)* %alloca, i32 0, i32 0, i32 1
    366   %gep1 = getelementptr [2 x %struct.pair32], [2 x %struct.pair32] addrspace(5)* %alloca, i32 0, i32 1, i32 0
    367   store i32 0, i32 addrspace(5)* %gep0
    368   store i32 1, i32 addrspace(5)* %gep1
    369   %gep2 = getelementptr [2 x %struct.pair32], [2 x %struct.pair32] addrspace(5)* %alloca, i32 0, i32 %index, i32 0
    370   %load = load i32, i32 addrspace(5)* %gep2
    371   store i32 %load, i32 addrspace(1)* %out
    372   ret void
    373 }
    374 
    375 define amdgpu_kernel void @select_private(i32 addrspace(1)* %out, i32 %in) nounwind {
    376 entry:
    377   %tmp = alloca [2 x i32], addrspace(5)
    378   %tmp1 = getelementptr [2 x i32], [2 x i32] addrspace(5)* %tmp, i32 0, i32 0
    379   %tmp2 = getelementptr [2 x i32], [2 x i32] addrspace(5)* %tmp, i32 0, i32 1
    380   store i32 0, i32 addrspace(5)* %tmp1
    381   store i32 1, i32 addrspace(5)* %tmp2
    382   %cmp = icmp eq i32 %in, 0
    383   %sel = select i1 %cmp, i32 addrspace(5)* %tmp1, i32 addrspace(5)* %tmp2
    384   %load = load i32, i32 addrspace(5)* %sel
    385   store i32 %load, i32 addrspace(1)* %out
    386   ret void
    387 }
    388 
    389 ; AMDGPUPromoteAlloca does not know how to handle ptrtoint.  When it
    390 ; finds one, it should stop trying to promote.
    391 
    392 ; FUNC-LABEL: ptrtoint:
    393 ; SI-NOT: ds_write
    394 ; SI: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen
    395 ; SI: v_add_{{[iu]}}32_e32 [[ADD_OFFSET:v[0-9]+]], vcc, 5,
    396 ; SI: buffer_load_dword v{{[0-9]+}}, [[ADD_OFFSET:v[0-9]+]], s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ;
    397 define amdgpu_kernel void @ptrtoint(i32 addrspace(1)* %out, i32 %a, i32 %b) #0 {
    398   %alloca = alloca [16 x i32], addrspace(5)
    399   %tmp0 = getelementptr [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %a
    400   store i32 5, i32 addrspace(5)* %tmp0
    401   %tmp1 = ptrtoint [16 x i32] addrspace(5)* %alloca to i32
    402   %tmp2 = add i32 %tmp1, 5
    403   %tmp3 = inttoptr i32 %tmp2 to i32 addrspace(5)*
    404   %tmp4 = getelementptr i32, i32 addrspace(5)* %tmp3, i32 %b
    405   %tmp5 = load i32, i32 addrspace(5)* %tmp4
    406   store i32 %tmp5, i32 addrspace(1)* %out
    407   ret void
    408 }
    409 
    410 ; OPT-LABEL: @pointer_typed_alloca(
    411 ; OPT:  getelementptr inbounds [256 x i32 addrspace(1)*], [256 x i32 addrspace(1)*] addrspace(3)* @pointer_typed_alloca.A.addr, i32 0, i32 %{{[0-9]+}}
    412 ; OPT: load i32 addrspace(1)*, i32 addrspace(1)* addrspace(3)* %{{[0-9]+}}, align 4
    413 define amdgpu_kernel void @pointer_typed_alloca(i32 addrspace(1)* %A) {
    414 entry:
    415   %A.addr = alloca i32 addrspace(1)*, align 4, addrspace(5)
    416   store i32 addrspace(1)* %A, i32 addrspace(1)* addrspace(5)* %A.addr, align 4
    417   %ld0 = load i32 addrspace(1)*, i32 addrspace(1)* addrspace(5)* %A.addr, align 4
    418   %arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %ld0, i32 0
    419   store i32 1, i32 addrspace(1)* %arrayidx, align 4
    420   %ld1 = load i32 addrspace(1)*, i32 addrspace(1)* addrspace(5)* %A.addr, align 4
    421   %arrayidx1 = getelementptr inbounds i32, i32 addrspace(1)* %ld1, i32 1
    422   store i32 2, i32 addrspace(1)* %arrayidx1, align 4
    423   %ld2 = load i32 addrspace(1)*, i32 addrspace(1)* addrspace(5)* %A.addr, align 4
    424   %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %ld2, i32 2
    425   store i32 3, i32 addrspace(1)* %arrayidx2, align 4
    426   ret void
    427 }
    428 
    429 ; FUNC-LABEL: v16i32_stack:
    430 
    431 ; R600: MOVA_INT
    432 ; R600: MOVA_INT
    433 ; R600: MOVA_INT
    434 ; R600: MOVA_INT
    435 ; R600: MOVA_INT
    436 ; R600: MOVA_INT
    437 ; R600: MOVA_INT
    438 ; R600: MOVA_INT
    439 ; R600: MOVA_INT
    440 ; R600: MOVA_INT
    441 ; R600: MOVA_INT
    442 ; R600: MOVA_INT
    443 ; R600: MOVA_INT
    444 ; R600: MOVA_INT
    445 ; R600: MOVA_INT
    446 ; R600: MOVA_INT
    447 
    448 ; SI: buffer_load_dword
    449 ; SI: buffer_load_dword
    450 ; SI: buffer_load_dword
    451 ; SI: buffer_load_dword
    452 ; SI: buffer_load_dword
    453 ; SI: buffer_load_dword
    454 ; SI: buffer_load_dword
    455 ; SI: buffer_load_dword
    456 ; SI: buffer_load_dword
    457 ; SI: buffer_load_dword
    458 ; SI: buffer_load_dword
    459 ; SI: buffer_load_dword
    460 ; SI: buffer_load_dword
    461 ; SI: buffer_load_dword
    462 ; SI: buffer_load_dword
    463 ; SI: buffer_load_dword
    464 
    465 define amdgpu_kernel void @v16i32_stack(<16 x i32> addrspace(1)* %out, i32 %a) {
    466   %alloca = alloca [2 x <16 x i32>], addrspace(5)
    467   %tmp0 = getelementptr [2 x <16 x i32>], [2 x <16 x i32>] addrspace(5)* %alloca, i32 0, i32 %a
    468   %tmp5 = load <16 x i32>, <16 x i32> addrspace(5)* %tmp0
    469   store <16 x i32> %tmp5, <16 x i32> addrspace(1)* %out
    470   ret void
    471 }
    472 
    473 ; FUNC-LABEL: v16float_stack:
    474 
    475 ; R600: MOVA_INT
    476 ; R600: MOVA_INT
    477 ; R600: MOVA_INT
    478 ; R600: MOVA_INT
    479 ; R600: MOVA_INT
    480 ; R600: MOVA_INT
    481 ; R600: MOVA_INT
    482 ; R600: MOVA_INT
    483 ; R600: MOVA_INT
    484 ; R600: MOVA_INT
    485 ; R600: MOVA_INT
    486 ; R600: MOVA_INT
    487 ; R600: MOVA_INT
    488 ; R600: MOVA_INT
    489 ; R600: MOVA_INT
    490 ; R600: MOVA_INT
    491 
    492 ; SI: buffer_load_dword
    493 ; SI: buffer_load_dword
    494 ; SI: buffer_load_dword
    495 ; SI: buffer_load_dword
    496 ; SI: buffer_load_dword
    497 ; SI: buffer_load_dword
    498 ; SI: buffer_load_dword
    499 ; SI: buffer_load_dword
    500 ; SI: buffer_load_dword
    501 ; SI: buffer_load_dword
    502 ; SI: buffer_load_dword
    503 ; SI: buffer_load_dword
    504 ; SI: buffer_load_dword
    505 ; SI: buffer_load_dword
    506 ; SI: buffer_load_dword
    507 ; SI: buffer_load_dword
    508 
    509 define amdgpu_kernel void @v16float_stack(<16 x float> addrspace(1)* %out, i32 %a) {
    510   %alloca = alloca [2 x <16 x float>], addrspace(5)
    511   %tmp0 = getelementptr [2 x <16 x float>], [2 x <16 x float>] addrspace(5)* %alloca, i32 0, i32 %a
    512   %tmp5 = load <16 x float>, <16 x float> addrspace(5)* %tmp0
    513   store <16 x float> %tmp5, <16 x float> addrspace(1)* %out
    514   ret void
    515 }
    516 
    517 ; FUNC-LABEL: v2float_stack:
    518 
    519 ; R600: MOVA_INT
    520 ; R600: MOVA_INT
    521 
    522 ; SI: buffer_load_dword
    523 ; SI: buffer_load_dword
    524 
    525 define amdgpu_kernel void @v2float_stack(<2 x float> addrspace(1)* %out, i32 %a) {
    526   %alloca = alloca [16 x <2 x float>], addrspace(5)
    527   %tmp0 = getelementptr [16 x <2 x float>], [16 x <2 x float>] addrspace(5)* %alloca, i32 0, i32 %a
    528   %tmp5 = load <2 x float>, <2 x float> addrspace(5)* %tmp0
    529   store <2 x float> %tmp5, <2 x float> addrspace(1)* %out
    530   ret void
    531 }
    532 
    533 ; OPT-LABEL: @direct_alloca_read_0xi32(
    534 ; OPT: store [0 x i32] undef, [0 x i32] addrspace(3)*
    535 ; OPT: load [0 x i32], [0 x i32] addrspace(3)*
    536 define amdgpu_kernel void @direct_alloca_read_0xi32([0 x i32] addrspace(1)* %out, i32 %index) {
    537 entry:
    538   %tmp = alloca [0 x i32], addrspace(5)
    539   store [0 x i32] [], [0 x i32] addrspace(5)* %tmp
    540   %load = load [0 x i32], [0 x i32] addrspace(5)* %tmp
    541   store [0 x i32] %load, [0 x i32] addrspace(1)* %out
    542   ret void
    543 }
    544 
    545 ; OPT-LABEL: @direct_alloca_read_1xi32(
    546 ; OPT: store [1 x i32] zeroinitializer, [1 x i32] addrspace(3)*
    547 ; OPT: load [1 x i32], [1 x i32] addrspace(3)*
    548 define amdgpu_kernel void @direct_alloca_read_1xi32([1 x i32] addrspace(1)* %out, i32 %index) {
    549 entry:
    550   %tmp = alloca [1 x i32], addrspace(5)
    551   store [1 x i32] [i32 0], [1 x i32] addrspace(5)* %tmp
    552   %load = load [1 x i32], [1 x i32] addrspace(5)* %tmp
    553   store [1 x i32] %load, [1 x i32] addrspace(1)* %out
    554   ret void
    555 }
    556 
    557 attributes #0 = { nounwind "amdgpu-waves-per-eu"="1,2" }
    558 
    559 ; HSAOPT: !0 = !{}
    560 ; HSAOPT: !1 = !{i32 0, i32 257}
    561 ; HSAOPT: !2 = !{i32 0, i32 256}
    562 
    563 ; NOHSAOPT: !0 = !{i32 0, i32 257}
    564 ; NOHSAOPT: !1 = !{i32 0, i32 256}
    565