test/CodeGen/AMDGPU/merge-image-load.mir

# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass si-load-store-opt -o - %s | FileCheck -check-prefix=GFX9 %s

# GFX9-LABEL: name: image_load_merged_v1v3
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub0
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub1_sub2_sub3

name: image_load_merged_v1v3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---
# GFX9-LABEL: name: image_load_merged_v1v3_reversed
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub3
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub0_sub1_sub2

name: image_load_merged_v1v3_reversed
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_merged_v2v2
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_64 = COPY %8.sub0_sub1
# GFX9: %{{[0-9]+}}:vreg_64 = COPY killed %8.sub2_sub3

name: image_load_merged_v2v2
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_64 = IMAGE_LOAD_V2_V4 %5:vreg_128, %3:sreg_256, 3, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
    %7:vreg_64 = IMAGE_LOAD_V2_V4 %5:vreg_128, %3:sreg_256, 12, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_merged_v2v2_reversed
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_64 = COPY %8.sub2_sub3
# GFX9: %{{[0-9]+}}:vreg_64 = COPY killed %8.sub0_sub1

name: image_load_merged_v2v2_reversed
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_64 = IMAGE_LOAD_V2_V4 %5:vreg_128, %3:sreg_256, 12, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
    %7:vreg_64 = IMAGE_LOAD_V2_V4 %5:vreg_128, %3:sreg_256, 3, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_merged_v3v1
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = COPY %8.sub0_sub1_sub2
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY killed %8.sub3

name: image_load_merged_v3v1
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
    %7:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_merged_v3v1_reversed
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = COPY %8.sub1_sub2_sub3
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY killed %8.sub0

name: image_load_merged_v3v1_reversed
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
    %7:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_divided_merged
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)

name: image_load_divided_merged
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %8:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %9:vreg_96 = IMAGE_LOAD_V3_V4 %7:vreg_128, %3:sreg_256, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
    %10:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %11:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_divided_not_merged
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_divided_not_merged
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vreg_128 = COPY %2
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    IMAGE_STORE_V4_V4 %4:vreg_128, %5:vreg_128, %3:sreg_256, 15, -1, 0, 0, 0, 0, 0, 0, 0, implicit $exec
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_dmask_overlapped_not_merged
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 4, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_dmask_overlapped_not_merged
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 4, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_dmask_not_disjoint_not_merged
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 4, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 11, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_dmask_not_disjoint_not_merged
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5:vreg_128, %3:sreg_256, 4, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5:vreg_128, %3:sreg_256, 11, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_0
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %6, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_0
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 1, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %7:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %8:vreg_96 = IMAGE_LOAD_V3_V4 %6, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_1
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %6, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %6, %4, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_1
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %5:vgpr_32 = COPY %2.sub3
    %6:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %7:vgpr_32 = IMAGE_LOAD_V1_V4 %6, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %8:vreg_96 = IMAGE_LOAD_V3_V4 %6, %4, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_10
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 1, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_10
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 1, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_3
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 1, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 1, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_4
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 1, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_4
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 1, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_5
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 1, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_5
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 1, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_6
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 1, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_6
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 1, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_7
# GFX9: %{{[0-9]+}}:vreg_64 = IMAGE_LOAD_V2_V4 %5, %3, 8, 0, 0, 0, 0, 1, 0, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_7
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_64 = IMAGE_LOAD_V2_V4 %5, %3, 8, 0, 0, 0, 0, 1, 0, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_8
# GFX9: %{{[0-9]+}}:vreg_64 = IMAGE_LOAD_V2_V4 %5, %3, 8, 0, 0, 0, 0, 0, 1, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_8
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vreg_64 = IMAGE_LOAD_V2_V4 %5, %3, 8, 0, 0, 0, 0, 0, 1, -1, 0, implicit $exec :: (dereferenceable load 8, align 16, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_not_merged_9
# GFX9: %{{[0-9]+}}:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)

name: image_load_not_merged_9
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_V1_V4 %5, %3, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_V3_V4 %5, %3, 7, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_mip_merged_v1v3
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_MIP_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4) 
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub0
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub1_sub2_sub3

name: image_load_mip_merged_v1v3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_MIP_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_MIP_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---



# GFX9-LABEL: name: image_load_mip_pck_merged_v1v3
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_MIP_PCK_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub0
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub1_sub2_sub3

name: image_load_mip_pck_merged_v1v3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_MIP_PCK_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_MIP_PCK_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---



# GFX9-LABEL: name: image_load_mip_pck_sgn_merged_v1v3
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_MIP_PCK_SGN_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub0
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub1_sub2_sub3

name: image_load_mip_pck_sgn_merged_v1v3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_MIP_PCK_SGN_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_MIP_PCK_SGN_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_pck_merged_v1v3
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_PCK_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub0
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub1_sub2_sub3

name: image_load_pck_merged_v1v3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_PCK_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_PCK_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---

# GFX9-LABEL: name: image_load_pck_sgn_merged_v1v3
# GFX9: %{{[0-9]+}}:vreg_128 = IMAGE_LOAD_PCK_SGN_V4_V4 %5, %3, 15, 0, 0, 0, 0, 0, 0, -1, implicit $exec, implicit $exec :: (dereferenceable load 16, align 4, addrspace 4)
# GFX9: %{{[0-9]+}}:vgpr_32 = COPY %8.sub0
# GFX9: %{{[0-9]+}}:vreg_96 = COPY killed %8.sub1_sub2_sub3

name: image_load_pck_sgn_merged_v1v3
body:             |
  bb.0.entry:
    %0:sgpr_64 = COPY $sgpr0_sgpr1
    %1:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 36, 0, 0
    %2:sgpr_128 =COPY $sgpr96_sgpr97_sgpr98_sgpr99
    %3:sreg_256 = S_LOAD_DWORDX8_IMM %1, 208, 0, 0
    %4:vgpr_32 = COPY %2.sub3
    %5:vreg_128 = BUFFER_LOAD_DWORDX4_OFFSET %2:sgpr_128, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 16)
    %6:vgpr_32 = IMAGE_LOAD_PCK_SGN_V1_V4 %5:vreg_128, %3:sreg_256, 1, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 4, addrspace 4)
    %7:vreg_96 = IMAGE_LOAD_PCK_SGN_V3_V4 %5:vreg_128, %3:sreg_256, 14, 0, 0, 0, 0, 0, 0, -1, implicit $exec :: (dereferenceable load 12, align 16, addrspace 4)
...
---