llvm/test/CodeGen/AMDGPU/verify-gfx90a-aligned-vgprs.mir

# RUN: not --crash llc -march=amdgcn -mcpu=gfx90a -run-pass=machineverifier -o /dev/null %s 2>&1 | FileCheck %s

# Implicit uses are OK.
---
name: implicit_use
body:            |
  bb.0:
    $vgpr1_vgpr2 = IMPLICIT_DEF
    S_NOP 0, implicit $vgpr1_vgpr2
    %0:vreg_64 = IMPLICIT_DEF
    S_NOP 0, implicit %0

    %1:sreg_64_xexec = IMPLICIT_DEF
    %2:sreg_64_xexec = SI_CALL %1, 0, csr_amdgpu_highregs, implicit $vgpr1_vgpr2

    ; noreg is OK
    DS_WRITE_B64_gfx9 $noreg, $noreg, 0, 0, implicit $exec
...

# The unaligned registers are allowed to exist, just not on any tuple instructions.

---
name: copy_like_generic
body:            |
  bb.0:
    $vgpr1_vgpr2 = IMPLICIT_DEF
    $vgpr3_vgpr4 = COPY $vgpr1_vgpr2
    %0:vreg_64 = IMPLICIT_DEF
    %1:vreg_64 = COPY %0
...

---
name: mov_32_unaligned_super
body:            |
  bb.0:
    undef %0.sub1:vreg_64 = V_MOV_B32_e32 0, implicit $exec
    %1:vgpr_32 = V_MOV_B32_e32 undef %2.sub1:vreg_64, implicit $exec
...

# Well-aligned subregister indexes are OK
---
name: aligned_sub_reg
body:            |
  bb.0:
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_128_align2 = IMPLICIT_DEF
    GLOBAL_STORE_DWORDX2 %0, %1.sub0_sub1, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX2 %0, %1.sub2_sub3, 0, 0, implicit $exec
...

---
name: unaligned_registers
body:            |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr3_vgpr4_vgpr5_vgpr6
    %0:vreg_64_align2 = IMPLICIT_DEF
    %1:vreg_64 = IMPLICIT_DEF
    %2:vreg_96 = IMPLICIT_DEF
    %3:vreg_128 = IMPLICIT_DEF
    %4:areg_64 = IMPLICIT_DEF
    %5:vreg_128_align2 = IMPLICIT_DEF

    ; Check virtual register uses
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    GLOBAL_STORE_DWORDX2 %0, %1, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX3 %0, %2, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX4 %0, %3, 0, 0, implicit $exec

    ; Check virtual registers with subregisters
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    GLOBAL_STORE_DWORDX2 %0, %3.sub0_sub1, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX2 %0, %3.sub2_sub3, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX2 %0, %3.sub1_sub2, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX2 %0, %5.sub1_sub2, 0, 0, implicit $exec

    ; Check physical register uses
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    GLOBAL_STORE_DWORDX2 $vgpr0_vgpr1, $vgpr3_vgpr4, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX3 $vgpr0_vgpr1, $vgpr3_vgpr4_vgpr5, 0, 0, implicit $exec
    GLOBAL_STORE_DWORDX4 $vgpr0_vgpr1, $vgpr3_vgpr4_vgpr5_vgpr6, 0, 0, implicit $exec

    ; Check virtual register defs
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    %6:vreg_64 = GLOBAL_LOAD_DWORDX2 %0, 0, 0, implicit $exec
    %7:vreg_96 = GLOBAL_LOAD_DWORDX3 %0, 0, 0, implicit $exec
    %8:vreg_128 = GLOBAL_LOAD_DWORDX4 %0, 0, 0, implicit $exec

    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    $vgpr1_vgpr2 = GLOBAL_LOAD_DWORDX2 %0, 0, 0, implicit $exec
    $vgpr1_vgpr2_vgpr3 = GLOBAL_LOAD_DWORDX3 %0, 0, 0, implicit $exec
    $vgpr1_vgpr2_vgpr3_vgpr4 = GLOBAL_LOAD_DWORDX4 %0, 0, 0, implicit $exec

    ; Check AGPRs
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    ; CHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
    %9:vgpr_32 = IMPLICIT_DEF
    %10:areg_64 = IMPLICIT_DEF
    %11:areg_128_align2 = IMPLICIT_DEF
    DS_WRITE_B64_gfx9 %9, %10, 0, 0, implicit $exec
    DS_WRITE_B64_gfx9 %9, %11.sub1_sub2, 0, 0, implicit $exec
...

# FIXME: Inline asm is not verified
# ; Check inline asm
# ; XCHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
# ; XCHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
# ; XCHECK: *** Bad machine code: Subtarget requires even aligned vector registers ***
# INLINEASM &"; use $0 ", 1 /* sideeffect attdialect */, 9 /* reguse */, $vgpr1_vgpr2
# INLINEASM &"; use $0 ", 1 /* sideeffect attdialect */, 9 /* reguse */, %4
# INLINEASM &"; use $0 ", 1 /* sideeffect attdialect */, 9 /* reguse */, %5.sub1_sub2