# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-amd-amdhsa -start-before=livevars -stop-after=twoaddressinstruction -verify-machineinstrs -o - %s | FileCheck %s
# FIXME: update_mir_test_checks tries to incorrectly re-use a variable
# name used for a copy, so some of the check variable names were
# manually fixed.
# Check for LiveVariables verifier error after lowering SI_END_CF
---
name: live_variables_update_block_split
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: live_variables_update_block_split
; CHECK: bb.0:
; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK-NEXT: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY killed $vgpr0
; CHECK-NEXT: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
; CHECK-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 0, killed [[COPY]], implicit $exec
; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY [[V_MOV_B32_e32_]]
; CHECK-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY killed [[V_MOV_B32_e32_]]
; CHECK-NEXT: [[COPY3:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; CHECK-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY3]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; CHECK-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY3]], implicit-def dead $scc
; CHECK-NEXT: $exec = S_MOV_B64_term killed [[S_AND_B64_]]
; CHECK-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term killed [[S_XOR_B64_]], implicit $exec
; CHECK-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; CHECK-NEXT: S_BRANCH %bb.2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1:
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY killed [[S_MOV_B64_term]]
; CHECK-NEXT: $exec = S_OR_B64_term $exec, killed [[COPY4]], implicit-def $scc
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3:
; CHECK-NEXT: successors: %bb.2(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY5:%[0-9]+]]:vgpr_32 = COPY killed [[COPY1]]
; CHECK-NEXT: [[V_ADD_U32_e32_:%[0-9]+]]:vgpr_32 = nsw V_ADD_U32_e32 1, killed [[COPY5]], implicit $exec
; CHECK-NEXT: [[COPY6:%[0-9]+]]:vgpr_32 = COPY killed [[V_ADD_U32_e32_]]
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2:
; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY66:%[0-9]+]]:vgpr_32 = COPY killed [[COPY6]]
; CHECK-NEXT: GLOBAL_STORE_DWORD undef %10:vreg_64, [[COPY66]], 0, 0, implicit $exec :: (volatile store (s32), addrspace 1)
; CHECK-NEXT: [[COPY7:%[0-9]+]]:vgpr_32 = COPY killed [[COPY66]]
; CHECK-NEXT: [[COPY8:%[0-9]+]]:vgpr_32 = COPY [[COPY7]]
; CHECK-NEXT: [[COPY8:%[0-9]+]]:vgpr_32 = COPY killed [[COPY7]]
; CHECK-NEXT: [[COPY8:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; CHECK-NEXT: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY8]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; CHECK-NEXT: [[S_XOR_B64_1:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_1]], [[COPY8]], implicit-def dead $scc
; CHECK-NEXT: $exec = S_MOV_B64_term killed [[S_AND_B64_1]]
; CHECK-NEXT: [[S_MOV_B64_term1:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term killed [[S_XOR_B64_1]], implicit $exec
; CHECK-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; CHECK-NEXT: S_BRANCH %bb.2
bb.0:
successors: %bb.2(0x40000000), %bb.1(0x40000000)
liveins: $vgpr0
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
%2:sreg_64_xexec = V_CMP_EQ_U32_e64 0, killed %0, implicit $exec
%3:sreg_64_xexec = SI_IF %2, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.2
bb.1:
successors: %bb.2(0x80000000)
%4:sreg_64_xexec = PHI %5, %bb.2, %3, %bb.0
%6:vgpr_32 = PHI %7, %bb.2, %1, %bb.0
SI_END_CF killed %4, implicit-def $exec, implicit-def dead $scc, implicit $exec
%8:vgpr_32 = nsw V_ADD_U32_e32 1, killed %6, implicit $exec
bb.2:
successors: %bb.2(0x40000000), %bb.1(0x40000000)
%9:vgpr_32 = PHI %8, %bb.1, %7, %bb.2, %1, %bb.0
GLOBAL_STORE_DWORD undef %10:vreg_64, %9, 0, 0, implicit $exec :: (volatile store (s32), addrspace 1)
%7:vgpr_32 = COPY killed %9
%5:sreg_64_xexec = SI_IF %2, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.2
...
# Here %4 which is not a phi join reg has its last use in bb.2. When
# bb.2 is split into MBB/SplitBB, %4 will be live through MBB.
---
name: live_variables_update_block_split_non_phi_live_across
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: live_variables_update_block_split_non_phi_live_across
; CHECK: bb.0:
; CHECK-NEXT: successors: %bb.3(0x40000000), %bb.1(0x40000000)
; CHECK-NEXT: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY killed $vgpr0
; CHECK-NEXT: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
; CHECK-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 0, killed [[COPY]], implicit $exec
; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY [[V_MOV_B32_e32_]]
; CHECK-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY killed [[V_MOV_B32_e32_]]
; CHECK-NEXT: [[COPY3:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; CHECK-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY3]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; CHECK-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY3]], implicit-def dead $scc
; CHECK-NEXT: $exec = S_MOV_B64_term killed [[S_AND_B64_]]
; CHECK-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term killed [[S_XOR_B64_]], implicit $exec
; CHECK-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; CHECK-NEXT: S_BRANCH %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1:
; CHECK-NEXT: successors: %bb.2(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY4:%[0-9]+]]:vgpr_32 = COPY killed [[COPY1]]
; CHECK-NEXT: [[COPY5:%[0-9]+]]:sreg_64_xexec = COPY killed [[S_MOV_B64_term]]
; CHECK-NEXT: S_BRANCH %bb.2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2:
; CHECK-NEXT: successors: %bb.4(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY6:%[0-9]+]]:sreg_64_xexec = COPY killed [[COPY5]]
; CHECK-NEXT: $exec = S_OR_B64_term $exec, killed [[COPY6]], implicit-def $scc
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.4:
; CHECK-NEXT: successors: %bb.3(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[V_ADD_U32_e32_:%[0-9]+]]:vgpr_32 = nsw V_ADD_U32_e32 1, killed [[COPY4]], implicit $exec
; CHECK-NEXT: [[COPY7:%[0-9]+]]:vgpr_32 = COPY killed [[V_ADD_U32_e32_]]
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3:
; CHECK-NEXT: successors: %bb.3(0x40000000), %bb.1(0x40000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY77:%[0-9]+]]:vgpr_32 = COPY killed [[COPY7]]
; CHECK-NEXT: GLOBAL_STORE_DWORD undef %11:vreg_64, [[COPY77]], 0, 0, implicit $exec :: (volatile store (s32), addrspace 1)
; CHECK-NEXT: [[COPY8:%[0-9]+]]:vgpr_32 = COPY killed [[COPY77]]
; CHECK-NEXT: [[COPY9:%[0-9]+]]:vgpr_32 = COPY [[COPY8]]
; CHECK-NEXT: [[COPY9:%[0-9]+]]:vgpr_32 = COPY killed [[COPY8]]
; CHECK-NEXT: [[COPY9:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; CHECK-NEXT: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY9]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; CHECK-NEXT: [[S_XOR_B64_1:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_1]], [[COPY9]], implicit-def dead $scc
; CHECK-NEXT: $exec = S_MOV_B64_term killed [[S_AND_B64_1]]
; CHECK-NEXT: [[S_MOV_B64_term1:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term killed [[S_XOR_B64_1]], implicit $exec
; CHECK-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; CHECK-NEXT: S_BRANCH %bb.3
bb.0:
successors: %bb.3(0x40000000), %bb.1(0x40000000)
liveins: $vgpr0
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
%2:sreg_64_xexec = V_CMP_EQ_U32_e64 0, killed %0, implicit $exec
%3:sreg_64_xexec = SI_IF %2, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.3
bb.1:
successors: %bb.2(0x80000000)
%4:sreg_64_xexec = PHI %5, %bb.3, %3, %bb.0
%6:vgpr_32 = PHI %7, %bb.3, %1, %bb.0
S_BRANCH %bb.2
bb.2:
successors: %bb.3(0x80000000)
%8:sreg_64_xexec = COPY %4
SI_END_CF killed %8, implicit-def $exec, implicit-def dead $scc, implicit $exec
%9:vgpr_32 = nsw V_ADD_U32_e32 1, killed %6, implicit $exec
bb.3:
successors: %bb.3(0x40000000), %bb.1(0x40000000)
%10:vgpr_32 = PHI %9, %bb.2, %7, %bb.3, %1, %bb.0
GLOBAL_STORE_DWORD undef %11:vreg_64, %10, 0, 0, implicit $exec :: (volatile store (s32), addrspace 1)
%7:vgpr_32 = COPY killed %10
%5:sreg_64_xexec = SI_IF %2, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.3
...