# RUN: not --crash llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx942 -run-pass=none -filetype=null %s 2>&1 | FileCheck %s

# sub16_sub17_sub18_sub19 is outside the bounds of a 512-bit
# register. Make sure the verification doesn't assert. This was only
# broken for targets that require even aligned VGPRs due to the manual
# alignment check.

---
name: uses_invalid_subregister_for_regclass
tracksRegLiveness: true
body:             |
  bb.0:
    %0:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
    S_NOP 0, implicit-def %1:vreg_512_align2


    ; CHECK: *** Bad machine code: Invalid subregister index for virtual register ***
    ; CHECK-NEXT: - function:    uses_invalid_subregister_for_regclass
    ; CHECK-NEXT: - basic block: %bb.0
    ; CHECK-NEXT: - instruction: GLOBAL_STORE_DWORDX4_SADDR %0:vgpr_32, %1.sub16_sub17_sub18_sub19:vreg_512_align2, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)
    ; CHECK-NEXT: - operand 1:   %1.sub16_sub17_sub18_sub19:vreg_512_align2
    ; CHECK-NEXT: Register class VReg_512_Align2 does not support subreg index sub16_sub17_sub18_sub19

    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK-NEXT: - function:    uses_invalid_subregister_for_regclass
    ; CHECK-NEXT: - basic block: %bb.0
    ; CHECK-NEXT: - instruction: GLOBAL_STORE_DWORDX4_SADDR %0:vgpr_32, %2.sub16_sub17_sub18_sub19:vreg_512, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)
    GLOBAL_STORE_DWORDX4_SADDR %0, %1.sub16_sub17_sub18_sub19, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)

    ; Test with unaligned class
    ; CHECK: *** Bad machine code: Invalid subregister index for virtual register ***
    ; CHECK-NEXT: - function:    uses_invalid_subregister_for_regclass
    ; CHECK-NEXT: - basic block: %bb.0
    ; CHECK-NEXT: - instruction: GLOBAL_STORE_DWORDX4_SADDR %0:vgpr_32, %2.sub16_sub17_sub18_sub19:vreg_512, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)
    ; CHECK-NEXT: - operand 1:   %2.sub16_sub17_sub18_sub19:vreg_512
    ; CHECK-NEXT: Register class VReg_512 does not support subreg index sub16_sub17_sub18_sub19
    S_NOP 0, implicit-def %2:vreg_512
    GLOBAL_STORE_DWORDX4_SADDR %0, %2.sub16_sub17_sub18_sub19, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)

    ; Test valid subregister index, but invalid effective register class.
    ; CHECK: *** Bad machine code: Illegal virtual register for instruction ***
    ; CHECK-NEXT: - function:    uses_invalid_subregister_for_regclass
    ; CHECK-NEXT: - basic block: %bb.0
    ; CHECK-NEXT: - instruction: GLOBAL_STORE_DWORDX4_SADDR %0:vgpr_32, %2.sub0:vreg_512, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)
    ; CHECK-NEXT: - operand 1:   %2.sub0:vreg_512
    ; CHECK-NEXT: VReg_512.sub0 cannot be used for AV_128_Align2 operands.
    %3:sreg_32 = COPY %0
    GLOBAL_STORE_DWORDX4_SADDR %0, %2.sub0, undef $sgpr8_sgpr9, 80, 0, implicit $exec :: (store (s128), addrspace 1)

    S_ENDPGM 0

...