AMDGPU: Add baseline tests for VGPR MFMA rewriting pass (#145023)

AMDGPU: Add baseline tests for VGPR MFMA rewriting pass

Add baseline tests for a new pass that will rewrite VGPR MFMAs
with copies to AV_* classes into the AGPR form.

Add start of IR test that probably needs to be redone

Author: arsenm

llvm/test/CodeGen/AMDGPU/inflate-reg-class-vgpr-mfma-to-agpr-negative-tests.mir

@@ -0,0 +1,313 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx942 -start-before=greedy,2 -stop-after=virtregrewriter,2 -o - %s | FileCheck %s
+
+--- |
+
+  define amdgpu_kernel void @inflate_result_to_agpr__not_mfma() {
+    ret void
+  }
+
+  ; FIXME: Need IR for amdgpu-waves-per-eu
+  define amdgpu_kernel void @av_split_is_phi_def_crash() #0 {
+    ret void
+  }
+
+  define amdgpu_kernel void @copy_physreg_to_av_crash() #0 {
+    ret void
+  }
+
+  attributes #0 = { "amdgpu-wave-limiter"="true" "amdgpu-waves-per-eu"="8,8" }
+...
+
+# Inflate pattern, except the defining instruction isn't an MFMA.
+---
+name:            inflate_result_to_agpr__not_mfma
+tracksRegLiveness: true
+machineFunctionInfo:
+  isEntryFunction: true
+  stackPtrOffsetReg: '$sgpr32'
+  occupancy:       10
+  sgprForEXECCopy: '$sgpr100_sgpr101'
+body:             |
+  ; CHECK-LABEL: name: inflate_result_to_agpr__not_mfma
+  ; CHECK: bb.0:
+  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $agpr0
+  ; CHECK-NEXT:   renamable $sgpr0 = S_MOV_B32 0
+  ; CHECK-NEXT:   renamable $vgpr8 = V_MOV_B32_e32 0, implicit $exec
+  ; CHECK-NEXT:   renamable $sgpr1 = COPY renamable $sgpr0
+  ; CHECK-NEXT:   renamable $vgpr2_vgpr3 = COPY killed renamable $sgpr0_sgpr1
+  ; CHECK-NEXT:   renamable $vcc = S_AND_B64 $exec, -1, implicit-def dead $scc
+  ; CHECK-NEXT:   dead renamable $vgpr9 = COPY renamable $vgpr8
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.1:
+  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
+  ; CHECK-NEXT:   liveins: $vcc, $vgpr2_vgpr3
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $vgpr0_vgpr1 = GLOBAL_LOAD_DWORDX2 undef renamable $vgpr0_vgpr1, 0, 0, implicit $exec :: (load (s64), addrspace 1)
+  ; CHECK-NEXT:   S_NOP 0, implicit-def renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15, implicit renamable $vgpr2_vgpr3, implicit renamable $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
+  ; CHECK-NEXT:   S_CBRANCH_VCCNZ %bb.1, implicit $vcc
+  ; CHECK-NEXT:   S_BRANCH %bb.2
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.2:
+  ; CHECK-NEXT:   liveins: $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15:0x00000000FFFFFFFF
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr24_vgpr25_vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55
+  ; CHECK-NEXT:   S_NOP 0, implicit-def $vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63
+  ; CHECK-NEXT:   renamable $vgpr0 = V_MOV_B32_e32 0, implicit $exec
+  ; CHECK-NEXT:   GLOBAL_STORE_DWORDX4_SADDR renamable $vgpr0, renamable $agpr8_agpr9_agpr10_agpr11, undef $sgpr0_sgpr1, 32, 0, implicit $exec :: (store (s128), align 32, addrspace 1)
+  ; CHECK-NEXT:   GLOBAL_STORE_DWORDX4_SADDR renamable $vgpr0, renamable $agpr12_agpr13_agpr14_agpr15, undef $sgpr0_sgpr1, 48, 0, implicit $exec :: (store (s128), addrspace 1)
+  ; CHECK-NEXT:   GLOBAL_STORE_DWORDX4_SADDR renamable $vgpr0, renamable $agpr0_agpr1_agpr2_agpr3, undef $sgpr0_sgpr1, 0, 0, implicit $exec :: (store (s128), align 128, addrspace 1)
+  ; CHECK-NEXT:   GLOBAL_STORE_DWORDX4_SADDR killed renamable $vgpr0, killed renamable $agpr4_agpr5_agpr6_agpr7, killed undef $sgpr0_sgpr1, 16, 0, implicit $exec :: (store (s128), addrspace 1)
+  ; CHECK-NEXT:   S_ENDPGM 0
+  bb.0:
+    S_NOP 0, implicit-def $agpr0
+    renamable $sgpr0 = S_MOV_B32 0
+    undef %0.sub8:vreg_512_align2 = V_MOV_B32_e32 0, implicit $exec
+    renamable $sgpr1 = COPY renamable $sgpr0
+    %1:vreg_64_align2 = COPY killed renamable $sgpr0_sgpr1
+    renamable $vcc = S_AND_B64 $exec, -1, implicit-def dead $scc
+    %0.sub9:vreg_512_align2 = COPY %0.sub8
+
+  bb.1:
+    liveins: $vcc
+
+    undef %4.sub0_sub1:vreg_512_align2 = GLOBAL_LOAD_DWORDX2 undef %3:vreg_64_align2, 0, 0, implicit $exec :: (load (s64), addrspace 1)
+    S_NOP 0, implicit-def %0:vreg_512_align2, implicit %1, implicit %4
+    S_CBRANCH_VCCNZ %bb.1, implicit $vcc
+    S_BRANCH %bb.2
+
+  bb.2:
+    ; No VGPRs available for %0
+    S_NOP 0, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
+    S_NOP 0, implicit-def $vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
+    S_NOP 0, implicit-def $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23
+    S_NOP 0, implicit-def $vgpr24_vgpr25_vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31
+    S_NOP 0, implicit-def $vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39
+    S_NOP 0, implicit-def $vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47
+    S_NOP 0, implicit-def $vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55
+    S_NOP 0, implicit-def $vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63
+    %2:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
+    GLOBAL_STORE_DWORDX4_SADDR %2, %0.sub8_sub9_sub10_sub11, undef $sgpr0_sgpr1, 32, 0, implicit $exec :: (store (s128), align 32, addrspace 1)
+    GLOBAL_STORE_DWORDX4_SADDR %2, %0.sub12_sub13_sub14_sub15, undef $sgpr0_sgpr1, 48, 0, implicit $exec :: (store (s128), addrspace 1)
+    GLOBAL_STORE_DWORDX4_SADDR %2, %0.sub0_sub1_sub2_sub3, undef $sgpr0_sgpr1, 0, 0, implicit $exec :: (store (s128), align 128, addrspace 1)
+    GLOBAL_STORE_DWORDX4_SADDR %2, %0.sub4_sub5_sub6_sub7, killed undef $sgpr0_sgpr1, 16, 0, implicit $exec :: (store (s128), addrspace 1)
+    S_ENDPGM 0
+
+...
+
+---
+name:            av_split_is_phi_def_crash
+tracksRegLiveness: true
+machineFunctionInfo:
+  isEntryFunction: true
+  waveLimiter:     true
+  hasSpilledSGPRs: true
+  scratchRSrcReg:  '$sgpr68_sgpr69_sgpr70_sgpr71'
+  stackPtrOffsetReg: '$sgpr32'
+  occupancy:       8
+  wwmReservedRegs:
+    - '$vgpr31'
+  sgprForEXECCopy: '$sgpr72_sgpr73'
+body:             |
+  ; CHECK-LABEL: name: av_split_is_phi_def_crash
+  ; CHECK: bb.0:
+  ; CHECK-NEXT:   successors: %bb.2(0x40000000), %bb.1(0x40000000)
+  ; CHECK-NEXT:   liveins: $vgpr0, $sgpr2_sgpr3, $sgpr8_sgpr9
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $vgpr8 = IMPLICIT_DEF
+  ; CHECK-NEXT:   renamable $vgpr2_vgpr3 = V_MOV_B64_PSEUDO 0, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr0 = V_MOV_B32_e32 0, implicit $exec
+  ; CHECK-NEXT:   S_CBRANCH_EXECZ %bb.2, implicit $exec
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.1:
+  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
+  ; CHECK-NEXT:   liveins: $vgpr8, $vgpr0_vgpr1:0x0000000000000003
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $vgpr2_vgpr3 = V_MOV_B64_PSEUDO 4607182418800017408, implicit $exec
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.2:
+  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
+  ; CHECK-NEXT:   liveins: $vgpr8, $vgpr31, $sgpr8_sgpr9, $vgpr0_vgpr1:0x0000000000000003, $vgpr2_vgpr3
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   renamable $vgpr1 = COPY renamable $vgpr8
+  ; CHECK-NEXT:   renamable $agpr0_agpr1 = COPY killed renamable $vgpr2_vgpr3
+  ; CHECK-NEXT:   renamable $vgpr2 = COPY renamable $vgpr1
+  ; CHECK-NEXT:   renamable $vgpr3 = COPY renamable $vgpr8
+  ; CHECK-NEXT:   renamable $vgpr6 = COPY renamable $vgpr1
+  ; CHECK-NEXT:   dead renamable $vgpr7 = COPY renamable $vgpr8
+  ; CHECK-NEXT:   renamable $vgpr6 = COPY renamable $vgpr1
+  ; CHECK-NEXT:   renamable $vgpr7 = COPY renamable $vgpr8
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   renamable $vgpr10_vgpr11 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr12_vgpr13 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr14_vgpr15 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr16_vgpr17 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr18_vgpr19 = V_ADD_F64_e64 0, undef $sgpr2_sgpr3, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr20_vgpr21 = V_ADD_F64_e64 0, undef $sgpr28_sgpr29, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr22_vgpr23 = V_ADD_F64_e64 0, undef $sgpr24_sgpr25, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr24_vgpr25 = V_ADD_F64_e64 0, undef $sgpr30_sgpr31, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr26_vgpr27 = V_ADD_F64_e64 0, undef $sgpr26_sgpr27, 0, 0, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr29 = COPY renamable $vgpr12
+  ; CHECK-NEXT:   renamable $vgpr28 = COPY renamable $vgpr12
+  ; CHECK-NEXT:   renamable $vgpr4_vgpr5 = V_MOV_B64_PSEUDO 0, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr4_vgpr5 = V_ADD_F64_e64 0, killed $vgpr28_vgpr29, 0, killed $vgpr4_vgpr5, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   renamable $vgpr28_vgpr29 = COPY killed renamable $agpr0_agpr1
+  ; CHECK-NEXT:   renamable $vgpr4_vgpr5 = V_ADD_F64_e64 0, killed $vgpr4_vgpr5, 0, killed $vgpr28_vgpr29, 0, 0, implicit $mode, implicit $exec
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr11
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr14
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr20
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr24
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr26
+  ; CHECK-NEXT:   renamable $vgpr4 = COPY killed renamable $vgpr6
+  ; CHECK-NEXT:   S_NOP 0
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr16
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr22
+  ; CHECK-NEXT:   dead renamable $vgpr4 = COPY killed renamable $vgpr18
+  ; CHECK-NEXT:   renamable $vgpr2 = COPY killed renamable $vgpr1
+  ; CHECK-NEXT:   dead renamable $vgpr3 = COPY killed renamable $vgpr8
+  ; CHECK-NEXT:   dead renamable $vgpr1 = COPY renamable $vgpr0
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.3:
+  ; CHECK-NEXT:   S_ENDPGM 0
+  bb.0:
+    liveins: $vgpr0, $sgpr8_sgpr9, $sgpr2_sgpr3, $sgpr8_sgpr9
+
+    %0:vgpr_32 = IMPLICIT_DEF
+    %1:vreg_64_align2 = V_MOV_B64_PSEUDO 0, implicit $exec
+    undef %2.sub0:vreg_64_align2 = V_MOV_B32_e32 0, implicit $exec
+    S_CBRANCH_EXECZ %bb.2, implicit $exec
+
+  bb.1:
+    %1:vreg_64_align2 = V_MOV_B64_PSEUDO 4607182418800017408, implicit $exec
+
+  bb.2:
+    liveins: $vgpr31, $sgpr8_sgpr9
+
+    %3:vgpr_32 = COPY %0
+    %4:vgpr_32 = COPY %0
+    undef %5.sub0:vreg_64_align2 = COPY %3
+    %5.sub1:vreg_64_align2 = COPY %4
+    undef %6.sub0:vreg_64_align2 = COPY %3
+    dead %6.sub1:vreg_64_align2 = COPY %4
+    undef %7.sub0:vreg_64_align2 = COPY %3
+    %7.sub1:vreg_64_align2 = COPY %4
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    S_NOP 0
+    %8:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %9:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %10:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %11:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr6_sgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %12:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr2_sgpr3, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %13:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr28_sgpr29, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %14:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr24_sgpr25, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %15:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr30_sgpr31, 0, 0, 0, 0, implicit $mode, implicit $exec
+    %16:vreg_64_align2 = V_ADD_F64_e64 0, undef $sgpr26_sgpr27, 0, 0, 0, 0, implicit $mode, implicit $exec
+    undef %17.sub1:vreg_64_align2 = COPY %9.sub0
+    %17.sub0:vreg_64_align2 = COPY %9.sub0
+    %18:vreg_64_align2 = V_MOV_B64_PSEUDO 0, implicit $exec
+    %19:vreg_64_align2 = V_ADD_F64_e64 0, %17, 0, %18, 0, 0, implicit $mode, implicit $exec
+    %20:vreg_64_align2 = V_ADD_F64_e64 0, %19, 0, %1, 0, 0, implicit $mode, implicit $exec
+    dead %21:vgpr_32 = COPY %20.sub0
+    dead %22:vgpr_32 = COPY %8.sub1
+    dead %23:vgpr_32 = COPY %10.sub0
+    dead %24:vgpr_32 = COPY %13.sub0
+    dead %25:vgpr_32 = COPY %15.sub0
+    dead %26:vgpr_32 = COPY %16.sub0
+    %27:vgpr_32 = COPY %7.sub0
+    %28:vgpr_32 = COPY %27
+    S_NOP 0
+    dead %29:vgpr_32 = COPY %11.sub0
+    dead %30:vgpr_32 = COPY %14.sub0
+    dead %31:vgpr_32 = COPY %12.sub0
+    %32:vreg_64_align2 = COPY %5
+    undef %33.sub0:vreg_64_align2 = COPY %3
+    dead %33.sub1:vreg_64_align2 = COPY %4
+    dead undef %34.sub1:vreg_64_align2 = COPY %9.sub1
+    dead %2.sub1:vreg_64_align2 = COPY %2.sub0
+
+  bb.3:
+    S_ENDPGM 0
+
+...
+
+---
+name:            copy_physreg_to_av_crash
+tracksRegLiveness: true
+registers:
+  - { id: 0, class: av_32, preferred-register: '$agpr0' }
+machineFunctionInfo:
+  isEntryFunction: true
+  stackPtrOffsetReg: '$sgpr32'
+  occupancy:       10
+body:             |
+  bb.0:
+    liveins: $vgpr0
+    ; CHECK-LABEL: name: copy_physreg_to_av_crash
+    ; CHECK: liveins: $vgpr0
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: renamable $agpr0 = COPY $vgpr0
+    %0:av_32 = COPY $vgpr0
+    $agpr0 = COPY %0
+
+...