test/CodeGen/AMDGPU/GlobalISel/inst-select-load-smrd.mir

# RUN: llc -march=amdgcn -mcpu=tahiti -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=GCN,SI,SICI,SIVI
# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=GCN,CI,SICI
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=GCN,VI,SIVI

# REQUIRES: global-isel

--- |
  define amdgpu_kernel void @smrd_imm(i32 addrspace(4)* %const0) { ret void }
...
---

name:            smrd_imm
legalized:       true
regBankSelected: true

# GCN: body:
# GCN: [[PTR:%[0-9]+]]:sreg_64 = COPY $sgpr0_sgpr1

# Immediate offset:
# SICI: S_LOAD_DWORD_IMM [[PTR]], 1, 0
# VI:   S_LOAD_DWORD_IMM [[PTR]], 4, 0

# Max immediate offset for SI
# SICI: S_LOAD_DWORD_IMM [[PTR]], 255, 0
# VI:   S_LOAD_DWORD_IMM [[PTR]], 1020, 0

# Immediate overflow for SI
# SI: [[K1024:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 1024
# SI: S_LOAD_DWORD_SGPR [[PTR]], [[K1024]], 0
# CI: S_LOAD_DWORD_IMM_ci [[PTR]], 256, 0
# VI: S_LOAD_DWORD_IMM [[PTR]], 1024, 0

# Max immediate offset for VI
# SI: [[K1048572:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 1048572
# CI: S_LOAD_DWORD_IMM_ci [[PTR]], 262143
# VI: S_LOAD_DWORD_IMM [[PTR]], 1048572

#
# Immediate overflow for VI
# SIVI: [[K1048576:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 1048576
# SIVI: S_LOAD_DWORD_SGPR [[PTR]], [[K1048576]], 0
# CI: S_LOAD_DWORD_IMM_ci [[PTR]], 262144, 0

# Max immediate for CI
# SIVI: [[K_LO:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 4294967292
# SIVI: [[K_HI:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 3
# SIVI: [[K:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[K_LO]], %subreg.sub0, [[K_HI]], %subreg.sub1
# SIVI-DAG: [[K_SUB0:%[0-9]+]]:sgpr_32 = COPY [[K]].sub0
# SIVI-DAG: [[PTR_LO:%[0-9]+]]:sgpr_32 = COPY [[PTR]].sub0
# SIVI: [[ADD_PTR_LO:%[0-9]+]]:sreg_32 = S_ADD_U32 [[PTR_LO]], [[K_SUB0]]
# SIVI-DAG: [[K_SUB1:%[0-9]+]]:sgpr_32 = COPY [[K]].sub1
# SIVI-DAG: [[PTR_HI:%[0-9]+]]:sgpr_32 = COPY [[PTR]].sub1
# SIVI: [[ADD_PTR_HI:%[0-9]+]]:sreg_32 = S_ADDC_U32 [[PTR_HI]], [[K_SUB1]]
# SIVI: [[ADD_PTR:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[ADD_PTR_LO]], %subreg.sub0, [[ADD_PTR_HI]], %subreg.sub1
# SIVI: S_LOAD_DWORD_IMM [[ADD_PTR]], 0, 0
# CI: S_LOAD_DWORD_IMM_ci [[PTR]], 4294967295, 0

# Immediate overflow for CI
# GCN: [[K_LO:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 0
# GCN: [[K_HI:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 4
# GCN: [[K:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[K_LO]], %subreg.sub0, [[K_HI]], %subreg.sub1
# GCN-DAG: [[K_SUB0:%[0-9]+]]:sgpr_32 = COPY [[K]].sub0
# GCN-DAG: [[PTR_LO:%[0-9]+]]:sgpr_32 = COPY [[PTR]].sub0
# GCN: [[ADD_PTR_LO:%[0-9]+]]:sreg_32 = S_ADD_U32 [[PTR_LO]], [[K_SUB0]]
# GCN-DAG: [[K_SUB1:%[0-9]+]]:sgpr_32 = COPY [[K]].sub1
# GCN-DAG: [[PTR_HI:%[0-9]+]]:sgpr_32 = COPY [[PTR]].sub1
# GCN: [[ADD_PTR_HI:%[0-9]+]]:sreg_32 = S_ADDC_U32 [[PTR_HI]], [[K_SUB1]]
# GCN: [[ADD_PTR:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[ADD_PTR_LO]], %subreg.sub0, [[ADD_PTR_HI]], %subreg.sub1
# GCN: S_LOAD_DWORD_IMM [[ADD_PTR]], 0, 0

# Max 32-bit byte offset
# SIVI: [[K4294967292:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 4294967292
# SIVI: S_LOAD_DWORD_SGPR [[PTR]], [[K4294967292]], 0
# CI: S_LOAD_DWORD_IMM_ci [[PTR]], 1073741823, 0

# Overflow 32-bit byte offset
# SIVI: [[K_LO:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 0
# SIVI: [[K_HI:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 1
# SIVI: [[K:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[K_LO]], %subreg.sub0, [[K_HI]], %subreg.sub1
# SIVI-DAG: [[K_SUB0:%[0-9]+]]:sgpr_32 = COPY [[K]].sub0
# SIVI-DAG: [[PTR_LO:%[0-9]+]]:sgpr_32 = COPY [[PTR]].sub0
# SIVI: [[ADD_PTR_LO:%[0-9]+]]:sreg_32 = S_ADD_U32 [[PTR_LO]], [[K_SUB0]]
# SIVI-DAG: [[K_SUB1:%[0-9]+]]:sgpr_32 = COPY [[K]].sub1
# SIVI-DAG: [[PTR_HI:%[0-9]+]]:sgpr_32 = COPY [[PTR]].sub1
# SIVI: [[ADD_PTR_HI:%[0-9]+]]:sreg_32 = S_ADDC_U32 [[PTR_HI]], [[K_SUB1]]
# SIVI: [[ADD_PTR:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[ADD_PTR_LO]], %subreg.sub0, [[ADD_PTR_HI]], %subreg.sub1
# SIVI: S_LOAD_DWORD_IMM [[ADD_PTR]], 0, 0
# CI: S_LOAD_DWORD_IMM_ci [[PTR]], 1073741824, 0

# Pointer loads
# GCN: [[AS0:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0
# GCN: $sgpr0_sgpr1 = COPY [[AS0]]
# GCN: [[AS1:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0
# GCN: $sgpr0_sgpr1 = COPY [[AS1]]
# GCN: [[AS4:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0
# GCN: $sgpr0_sgpr1 = COPY [[AS4]]

body: |
  bb.0:
    liveins: $sgpr0_sgpr1

    %0:sgpr(p4) = COPY $sgpr0_sgpr1

    %1:sgpr(s64) = G_CONSTANT i64 4
    %2:sgpr(p4) = G_GEP %0, %1
    %3:sgpr(s32) = G_LOAD %2 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %3

    %4:sgpr(s64) = G_CONSTANT i64 1020
    %5:sgpr(p4) = G_GEP %0, %4
    %6:sgpr(s32) = G_LOAD %5 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %6

    %7:sgpr(s64) = G_CONSTANT i64 1024
    %8:sgpr(p4) = G_GEP %0, %7
    %9:sgpr(s32) = G_LOAD %8 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %9

    %10:sgpr(s64) = G_CONSTANT i64 1048572
    %11:sgpr(p4) = G_GEP %0, %10
    %12:sgpr(s32) = G_LOAD %11 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %12

    %13:sgpr(s64) = G_CONSTANT i64 1048576
    %14:sgpr(p4) = G_GEP %0, %13
    %15:sgpr(s32) = G_LOAD %14 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %15

    %16:sgpr(s64) = G_CONSTANT i64 17179869180
    %17:sgpr(p4) = G_GEP %0, %16
    %18:sgpr(s32) = G_LOAD %17 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %18

    %19:sgpr(s64) = G_CONSTANT i64 17179869184
    %20:sgpr(p4) = G_GEP %0, %19
    %21:sgpr(s32) = G_LOAD %20 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %21

    %22:sgpr(s64) = G_CONSTANT i64 4294967292
    %23:sgpr(p4) = G_GEP %0, %22
    %24:sgpr(s32) = G_LOAD %23 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %24

    %25:sgpr(s64) = G_CONSTANT i64 4294967296
    %26:sgpr(p4) = G_GEP %0, %25
    %27:sgpr(s32) = G_LOAD %26 :: (load 4 from %ir.const0, addrspace 4)
    $sgpr0 = COPY %27

    %28:sgpr(p0) = G_LOAD %0 :: (load 8 from %ir.const0, addrspace 4)
    $sgpr0_sgpr1 = COPY %28

    %29:sgpr(p1) = G_LOAD %0 :: (load 8 from %ir.const0, addrspace 4)
    $sgpr0_sgpr1 = COPY %29

    %30:sgpr(p4) = G_LOAD %0 :: (load 8 from %ir.const0, addrspace 4)
    $sgpr0_sgpr1 = COPY %30

...
---