# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -run-pass=si-load-store-opt -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s

---
name:            merge_flat_load_dword_2
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dword_2
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX2_:%[0-9]+]]:vreg_64_align2 = FLAT_LOAD_DWORDX2 [[DEF]], 0, 0, implicit $exec, implicit $flat_scr :: (load (s64) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY [[FLAT_LOAD_DWORDX2_]].sub0
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX2_]].sub1
    ; GCN-NEXT: S_NOP 0, implicit [[COPY]], implicit [[COPY1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            merge_flat_load_dword_3
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dword_3
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX3_:%[0-9]+]]:vreg_96_align2 = FLAT_LOAD_DWORDX3 [[DEF]], 0, 1, implicit $exec, implicit $flat_scr :: (load (s96) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vreg_64_align2 = COPY [[FLAT_LOAD_DWORDX3_]].sub0_sub1
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX3_]].sub2
    ; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY [[COPY]].sub0
    ; GCN-NEXT: [[COPY3:%[0-9]+]]:vgpr_32 = COPY killed [[COPY]].sub1
    ; GCN-NEXT: S_NOP 0, implicit [[COPY2]], implicit [[COPY3]], implicit [[COPY1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 1, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 4, 1, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %3:vgpr_32 = FLAT_LOAD_DWORD %0, 8, 1, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2, implicit %3
...

---
name:            merge_flat_load_dword_4
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dword_4
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX4_:%[0-9]+]]:vreg_128_align2 = FLAT_LOAD_DWORDX4 [[DEF]], 0, 2, implicit $exec, implicit $flat_scr :: (load (s128) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vreg_96_align2 = COPY [[FLAT_LOAD_DWORDX4_]].sub0_sub1_sub2
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX4_]].sub3
    ; GCN-NEXT: [[COPY2:%[0-9]+]]:vreg_64_align2 = COPY [[COPY]].sub0_sub1
    ; GCN-NEXT: [[COPY3:%[0-9]+]]:vgpr_32 = COPY killed [[COPY]].sub2
    ; GCN-NEXT: [[COPY4:%[0-9]+]]:vgpr_32 = COPY [[COPY2]].sub0
    ; GCN-NEXT: [[COPY5:%[0-9]+]]:vgpr_32 = COPY killed [[COPY2]].sub1
    ; GCN-NEXT: S_NOP 0, implicit [[COPY4]], implicit [[COPY5]], implicit [[COPY3]], implicit [[COPY1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 2, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 4, 2, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %3:vgpr_32 = FLAT_LOAD_DWORD %0, 8, 2, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %4:vgpr_32 = FLAT_LOAD_DWORD %0, 12, 2, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2, implicit %3, implicit %4
...

---
name:            merge_flat_load_dword_5
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dword_5
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX4_:%[0-9]+]]:vreg_128_align2 = FLAT_LOAD_DWORDX4 [[DEF]], 0, 3, implicit $exec, implicit $flat_scr :: (load (s128) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vreg_96_align2 = COPY [[FLAT_LOAD_DWORDX4_]].sub0_sub1_sub2
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX4_]].sub3
    ; GCN-NEXT: [[COPY2:%[0-9]+]]:vreg_64_align2 = COPY [[COPY]].sub0_sub1
    ; GCN-NEXT: [[COPY3:%[0-9]+]]:vgpr_32 = COPY killed [[COPY]].sub2
    ; GCN-NEXT: [[COPY4:%[0-9]+]]:vgpr_32 = COPY [[COPY2]].sub0
    ; GCN-NEXT: [[COPY5:%[0-9]+]]:vgpr_32 = COPY killed [[COPY2]].sub1
    ; GCN-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 16, 3, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: S_NOP 0, implicit [[COPY4]], implicit [[COPY5]], implicit [[COPY3]], implicit [[COPY1]], implicit [[FLAT_LOAD_DWORD]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 3, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 4, 3, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %3:vgpr_32 = FLAT_LOAD_DWORD %0, 8, 3, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %4:vgpr_32 = FLAT_LOAD_DWORD %0, 12, 3, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %5:vgpr_32 = FLAT_LOAD_DWORD %0, 16, 3, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2, implicit %3, implicit %4, implicit %5
...

---
name:            merge_flat_load_dword_6
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dword_6
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX4_:%[0-9]+]]:vreg_128_align2 = FLAT_LOAD_DWORDX4 [[DEF]], 0, 0, implicit $exec, implicit $flat_scr :: (load (s128) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vreg_96_align2 = COPY [[FLAT_LOAD_DWORDX4_]].sub0_sub1_sub2
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX4_]].sub3
    ; GCN-NEXT: [[COPY2:%[0-9]+]]:vreg_64_align2 = COPY [[COPY]].sub0_sub1
    ; GCN-NEXT: [[COPY3:%[0-9]+]]:vgpr_32 = COPY killed [[COPY]].sub2
    ; GCN-NEXT: [[COPY4:%[0-9]+]]:vgpr_32 = COPY [[COPY2]].sub0
    ; GCN-NEXT: [[COPY5:%[0-9]+]]:vgpr_32 = COPY killed [[COPY2]].sub1
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX2_:%[0-9]+]]:vreg_64_align2 = FLAT_LOAD_DWORDX2 [[DEF]], 16, 0, implicit $exec, implicit $flat_scr :: (load (s64) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY6:%[0-9]+]]:vgpr_32 = COPY [[FLAT_LOAD_DWORDX2_]].sub0
    ; GCN-NEXT: [[COPY7:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX2_]].sub1
    ; GCN-NEXT: S_NOP 0, implicit [[COPY4]], implicit [[COPY5]], implicit [[COPY3]], implicit [[COPY1]], implicit [[COPY6]], implicit [[COPY7]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %3:vgpr_32 = FLAT_LOAD_DWORD %0, 8, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %4:vgpr_32 = FLAT_LOAD_DWORD %0, 12, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %5:vgpr_32 = FLAT_LOAD_DWORD %0, 16, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %6:vgpr_32 = FLAT_LOAD_DWORD %0, 20, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2, implicit %3, implicit %4, implicit %5, implicit %6
...

---
name:            merge_flat_load_dwordx2
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dwordx2
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX4_:%[0-9]+]]:vreg_128_align2 = FLAT_LOAD_DWORDX4 [[DEF]], 0, 0, implicit $exec, implicit $flat_scr :: (load (s128) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vreg_64_align2 = COPY [[FLAT_LOAD_DWORDX4_]].sub0_sub1
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vreg_64_align2 = COPY killed [[FLAT_LOAD_DWORDX4_]].sub2_sub3
    ; GCN-NEXT: S_NOP 0, implicit [[COPY]], implicit [[COPY1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_64_align2 = FLAT_LOAD_DWORDX2 %0, 0, 0, implicit $exec, implicit $flat_scr :: (load (s64) from `ptr poison`, align 4)
    %2:vreg_64_align2 = FLAT_LOAD_DWORDX2 %0, 8, 0, implicit $exec, implicit $flat_scr :: (load (s64) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            merge_flat_load_dwordx3_with_dwordx1
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dwordx3_with_dwordx1
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX4_:%[0-9]+]]:vreg_128_align2 = FLAT_LOAD_DWORDX4 [[DEF]], 12, 0, implicit $exec, implicit $flat_scr :: (load (s128) from `ptr poison`, align 8)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vreg_96_align2 = COPY [[FLAT_LOAD_DWORDX4_]].sub0_sub1_sub2
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY killed [[FLAT_LOAD_DWORDX4_]].sub3
    ; GCN-NEXT: S_NOP 0, implicit [[COPY]], implicit [[COPY1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_96_align2 = FLAT_LOAD_DWORDX3 %0, 12, 0, implicit $exec, implicit $flat_scr :: (load (s96) from `ptr poison`, align 8)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 24, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            merge_flat_load_dwordx1_with_dwordx2
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_load_dwordx1_with_dwordx2
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORDX3_:%[0-9]+]]:vreg_96_align2 = FLAT_LOAD_DWORDX3 [[DEF]], 12, 0, implicit $exec, implicit $flat_scr :: (load (s96) from `ptr poison`, align 4)
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY [[FLAT_LOAD_DWORDX3_]].sub0
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vreg_64_align2 = COPY killed [[FLAT_LOAD_DWORDX3_]].sub1_sub2
    ; GCN-NEXT: S_NOP 0, implicit [[COPY1]], implicit [[COPY]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 12, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %1:vreg_64_align2 = FLAT_LOAD_DWORDX2 %0, 16, 0, implicit $exec, implicit $flat_scr :: (load (s64) from `ptr poison`, align 8)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            no_merge_flat_load_dword_agpr_with_vgpr
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_load_dword_agpr_with_vgpr
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: [[FLAT_LOAD_DWORD1:%[0-9]+]]:agpr_32 = FLAT_LOAD_DWORD [[DEF]], 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: S_NOP 0, implicit [[FLAT_LOAD_DWORD]], implicit [[FLAT_LOAD_DWORD1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:agpr_32 = FLAT_LOAD_DWORD %0, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            no_merge_flat_load_dword_disjoint
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_load_dword_disjoint
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: [[FLAT_LOAD_DWORD1:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 8, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: S_NOP 0, implicit [[FLAT_LOAD_DWORD]], implicit [[FLAT_LOAD_DWORD1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 8, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            no_merge_flat_load_dword_overlap
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_load_dword_overlap
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: [[FLAT_LOAD_DWORD1:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 3, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: S_NOP 0, implicit [[FLAT_LOAD_DWORD]], implicit [[FLAT_LOAD_DWORD1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 3, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            no_merge_flat_load_dword_different_cpol
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_load_dword_different_cpol
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 0, 1, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: [[FLAT_LOAD_DWORD1:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF]], 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`)
    ; GCN-NEXT: S_NOP 0, implicit [[FLAT_LOAD_DWORD]], implicit [[FLAT_LOAD_DWORD1]]
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = FLAT_LOAD_DWORD %0, 0, 1, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    %2:vgpr_32 = FLAT_LOAD_DWORD %0, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `ptr poison`, align 4)
    S_NOP 0, implicit %1, implicit %2
...

---
name:            merge_flat_store_dword_2
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dword_2
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64_align2 = REG_SEQUENCE killed [[DEF1]], %subreg.sub0, killed [[DEF2]], %subreg.sub1
    ; GCN-NEXT: FLAT_STORE_DWORDX2 [[DEF]], killed [[REG_SEQUENCE]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s64) into `ptr poison`, align 4)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, killed %1, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, killed %2, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            merge_flat_store_dword_3
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dword_3
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF3:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64_align2 = REG_SEQUENCE killed [[DEF1]], %subreg.sub0, killed [[DEF2]], %subreg.sub1
    ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:vreg_96_align2 = REG_SEQUENCE killed [[REG_SEQUENCE]], %subreg.sub0_sub1, killed [[DEF3]], %subreg.sub2
    ; GCN-NEXT: FLAT_STORE_DWORDX3 [[DEF]], killed [[REG_SEQUENCE1]], 4, 1, implicit $exec, implicit $flat_scr :: (store (s96) into `ptr poison`, align 4)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    %3:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, killed %1, 4, 1, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, killed %2, 8, 1, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, killed %3, 12, 1, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            merge_flat_store_dword_4
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dword_4
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vreg_128 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64_align2 = REG_SEQUENCE [[DEF1]].sub1, %subreg.sub1, [[DEF1]].sub0, %subreg.sub0
    ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:vreg_96_align2 = REG_SEQUENCE [[DEF1]].sub2, %subreg.sub2, killed [[REG_SEQUENCE]], %subreg.sub0_sub1
    ; GCN-NEXT: [[REG_SEQUENCE2:%[0-9]+]]:vreg_128_align2 = REG_SEQUENCE [[DEF1]].sub3, %subreg.sub3, killed [[REG_SEQUENCE1]], %subreg.sub0_sub1_sub2
    ; GCN-NEXT: FLAT_STORE_DWORDX4 [[DEF]], killed [[REG_SEQUENCE2]], 4, 2, implicit $exec, implicit $flat_scr :: (store (s128) into `ptr poison`, align 4)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_128 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, %1.sub1, 8, 2, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %1.sub2, 12, 2, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %1.sub3, 16, 2, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, %1.sub0, 4, 2, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            merge_flat_store_dword_5
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dword_5
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:agpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:agpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF3:%[0-9]+]]:agpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF4:%[0-9]+]]:agpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF5:%[0-9]+]]:agpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:areg_64_align2 = REG_SEQUENCE [[DEF1]], %subreg.sub0, [[DEF2]], %subreg.sub1
    ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:areg_96_align2 = REG_SEQUENCE killed [[REG_SEQUENCE]], %subreg.sub0_sub1, [[DEF3]], %subreg.sub2
    ; GCN-NEXT: [[REG_SEQUENCE2:%[0-9]+]]:areg_128_align2 = REG_SEQUENCE killed [[REG_SEQUENCE1]], %subreg.sub0_sub1_sub2, [[DEF4]], %subreg.sub3
    ; GCN-NEXT: FLAT_STORE_DWORDX4 [[DEF]], killed [[REG_SEQUENCE2]], 4, 3, implicit $exec, implicit $flat_scr :: (store (s128) into `ptr poison`, align 4)
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]], [[DEF5]], 20, 3, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:agpr_32 = IMPLICIT_DEF
    %2:agpr_32 = IMPLICIT_DEF
    %3:agpr_32 = IMPLICIT_DEF
    %4:agpr_32 = IMPLICIT_DEF
    %5:agpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, %1, 4, 3, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %2, 8, 3, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 8)
    FLAT_STORE_DWORD %0, %3, 12, 3, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %4, 16, 3, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %5, 20, 3, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            merge_flat_store_dword_6
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dword_6
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF3:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF4:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF5:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF6:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64_align2 = REG_SEQUENCE [[DEF1]], %subreg.sub0, [[DEF2]], %subreg.sub1
    ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:vreg_96_align2 = REG_SEQUENCE killed [[REG_SEQUENCE]], %subreg.sub0_sub1, [[DEF3]], %subreg.sub2
    ; GCN-NEXT: [[REG_SEQUENCE2:%[0-9]+]]:vreg_128_align2 = REG_SEQUENCE killed [[REG_SEQUENCE1]], %subreg.sub0_sub1_sub2, [[DEF4]], %subreg.sub3
    ; GCN-NEXT: FLAT_STORE_DWORDX4 [[DEF]], killed [[REG_SEQUENCE2]], 4, 0, implicit $exec, implicit $flat_scr :: (store (s128) into `ptr poison`, align 8)
    ; GCN-NEXT: [[REG_SEQUENCE3:%[0-9]+]]:vreg_64_align2 = REG_SEQUENCE [[DEF5]], %subreg.sub0, [[DEF6]], %subreg.sub1
    ; GCN-NEXT: FLAT_STORE_DWORDX2 [[DEF]], killed [[REG_SEQUENCE3]], 20, 0, implicit $exec, implicit $flat_scr :: (store (s64) into `ptr poison`, align 4)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    %3:vgpr_32 = IMPLICIT_DEF
    %4:vgpr_32 = IMPLICIT_DEF
    %5:vgpr_32 = IMPLICIT_DEF
    %6:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, %1, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 8)
    FLAT_STORE_DWORD %0, %2, 8, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %3, 12, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %4, 16, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %5, 20, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0, %6, 24, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            merge_flat_store_dwordx2
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dwordx2
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_128_align2 = REG_SEQUENCE killed [[DEF1]], %subreg.sub0_sub1, killed [[DEF2]], %subreg.sub2_sub3
    ; GCN-NEXT: FLAT_STORE_DWORDX4 [[DEF]], killed [[REG_SEQUENCE]], 4, 0, implicit $exec, implicit $flat_scr :: (store (s128) into `ptr poison`, align 4)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_64_align2 = IMPLICIT_DEF
    %2:vreg_64_align2 = IMPLICIT_DEF
    FLAT_STORE_DWORDX2 %0, killed %1, 4, 0, implicit $exec, implicit $flat_scr :: (store (s64) into `ptr poison`, align 4)
    FLAT_STORE_DWORDX2 %0, killed %2, 12, 0, implicit $exec, implicit $flat_scr :: (store (s64) into `ptr poison`, align 4)
...

---
name:            merge_flat_store_dwordx3_with_dwordx1
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: merge_flat_store_dwordx3_with_dwordx1
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vreg_96_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_128_align2 = REG_SEQUENCE killed [[DEF1]], %subreg.sub0_sub1_sub2, killed [[DEF2]], %subreg.sub3
    ; GCN-NEXT: FLAT_STORE_DWORDX4 [[DEF]], killed [[REG_SEQUENCE]], 4, 0, implicit $exec, implicit $flat_scr :: (store (s128) into `ptr poison`)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_96_align2 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORDX3 %0, killed %1, 4, 0, implicit $exec, implicit $flat_scr :: (store (s96) into `ptr poison`, align 16)
    FLAT_STORE_DWORD %0, killed %2, 16, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            no_merge_flat_store_dword_agpr_with_vgpr
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_store_dword_agpr_with_vgpr
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:agpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]], killed [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    ; GCN-NEXT: FLAT_STORE_DWORD killed [[DEF]], killed [[DEF2]], 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:agpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, killed %1, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, killed %2, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            no_merge_flat_store_dword_disjoint
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_store_dword_disjoint
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]], killed [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    ; GCN-NEXT: FLAT_STORE_DWORD killed [[DEF]], killed [[DEF2]], 6, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, killed %1, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, killed %2, 6, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            no_merge_flat_store_dword_overlap
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_store_dword_overlap
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]], killed [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    ; GCN-NEXT: FLAT_STORE_DWORD killed [[DEF]], killed [[DEF2]], 2, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 2)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, killed %1, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, killed %2, 2, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 2)
...

---
name:            no_merge_flat_store_dword_different_cpol
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_store_dword_different_cpol
    ; GCN: [[DEF:%[0-9]+]]:vreg_64_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]], killed [[DEF1]], 0, 1, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    ; GCN-NEXT: FLAT_STORE_DWORD killed [[DEF]], killed [[DEF2]], 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0, killed %1, 0, 1, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD killed %0, killed %2, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...

---
name:            no_merge_flat_store_dword_different_vaddr
body:             |
  bb.0.entry:

    ; GCN-LABEL: name: no_merge_flat_store_dword_different_vaddr
    ; GCN: [[DEF:%[0-9]+]]:vreg_128_align2 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]].sub0_sub1, killed [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    ; GCN-NEXT: FLAT_STORE_DWORD [[DEF]].sub2_sub3, killed [[DEF2]], 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`)
    %0:vreg_128_align2 = IMPLICIT_DEF
    %1:vgpr_32 = IMPLICIT_DEF
    %2:vgpr_32 = IMPLICIT_DEF
    FLAT_STORE_DWORD %0.sub0_sub1, killed %1, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
    FLAT_STORE_DWORD %0.sub2_sub3, killed %2, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into `ptr poison`, align 4)
...