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|
# RUN: llc -march=amdgcn -verify-machineinstrs -run-pass si-fix-wwm-liveness -o - %s | FileCheck %s
# Test a then phi value.
#CHECK: test_wwm_liveness_then_phi
#CHECK: %21:vgpr_32 = V_MOV_B32_e32 1, implicit $exec, implicit %21
---
name: test_wwm_liveness_then_phi
alignment: 0
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: sreg_64, preferred-register: '' }
- { id: 1, class: sgpr_32, preferred-register: '' }
- { id: 2, class: sgpr_32, preferred-register: '' }
- { id: 3, class: vgpr_32, preferred-register: '' }
- { id: 4, class: vgpr_32, preferred-register: '' }
- { id: 5, class: vgpr_32, preferred-register: '' }
- { id: 6, class: vgpr_32, preferred-register: '' }
- { id: 7, class: vgpr_32, preferred-register: '' }
- { id: 8, class: sreg_64, preferred-register: '$vcc' }
- { id: 9, class: sreg_64, preferred-register: '' }
- { id: 10, class: sreg_32_xm0, preferred-register: '' }
- { id: 11, class: sreg_64, preferred-register: '' }
- { id: 12, class: sreg_32_xm0, preferred-register: '' }
- { id: 13, class: sreg_32_xm0, preferred-register: '' }
- { id: 14, class: sreg_32_xm0, preferred-register: '' }
- { id: 15, class: sreg_128, preferred-register: '' }
- { id: 16, class: vgpr_32, preferred-register: '' }
- { id: 17, class: vgpr_32, preferred-register: '' }
- { id: 18, class: vgpr_32, preferred-register: '' }
- { id: 19, class: sreg_64, preferred-register: '' }
- { id: 20, class: sreg_64, preferred-register: '' }
- { id: 21, class: vgpr_32, preferred-register: '' }
- { id: 22, class: sreg_64, preferred-register: '' }
- { id: 23, class: sreg_64, preferred-register: '' }
liveins:
body: |
bb.0:
successors: %bb.1(0x40000000), %bb.2(0x40000000)
%21 = V_MOV_B32_e32 0, implicit $exec
%5 = V_MBCNT_LO_U32_B32_e64 -1, 0, implicit $exec
%6 = V_MBCNT_HI_U32_B32_e32 -1, killed %5, implicit $exec
%8 = V_CMP_GT_U32_e64 32, killed %6, implicit $exec
%22 = COPY $exec, implicit-def $exec
%23 = S_AND_B64 %22, %8, implicit-def dead $scc
%0 = S_XOR_B64 %23, %22, implicit-def dead $scc
$exec = S_MOV_B64_term killed %23
SI_MASK_BRANCH %bb.2, implicit $exec
S_BRANCH %bb.1
bb.1:
successors: %bb.2(0x80000000)
%13 = S_MOV_B32 61440
%14 = S_MOV_B32 -1
%15 = REG_SEQUENCE undef %12, 1, undef %10, 2, killed %14, 3, killed %13, 4
%19 = COPY $exec
$exec = S_MOV_B64 -1
%16 = BUFFER_LOAD_DWORD_OFFSET %15, 0, 0, 0, 0, 0, implicit $exec :: (volatile load 4)
%17 = V_ADD_F32_e32 1065353216, killed %16, implicit $exec
$exec = EXIT_WWM killed %19
%21 = V_MOV_B32_e32 1, implicit $exec
early-clobber %18 = WWM killed %17, implicit $exec
BUFFER_STORE_DWORD_OFFSET killed %18, killed %15, 0, 0, 0, 0, 0, implicit $exec :: (store 4)
bb.2:
$exec = S_OR_B64 $exec, killed %0, implicit-def $scc
$vgpr0 = COPY killed %21
SI_RETURN_TO_EPILOG killed $vgpr0
...
# Test a loop with a loop exit value and a loop phi.
#CHECK: test_wwm_liveness_loop
#CHECK: %4:vgpr_32 = IMPLICIT_DEF
#CHECK: bb.1:
#CHECK: %4:vgpr_32 = FLAT_LOAD_DWORD{{.*}}, implicit %4
#CHECK: %27:vgpr_32 = COPY killed %21, implicit %27
---
name: test_wwm_liveness_loop
alignment: 0
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
registers:
- { id: 0, class: vgpr_32, preferred-register: '' }
- { id: 1, class: sreg_32_xm0, preferred-register: '' }
- { id: 2, class: sreg_64, preferred-register: '' }
- { id: 3, class: sreg_32_xm0, preferred-register: '' }
- { id: 4, class: vgpr_32, preferred-register: '' }
- { id: 5, class: sreg_32_xm0, preferred-register: '' }
- { id: 6, class: sreg_64, preferred-register: '' }
- { id: 7, class: sreg_64, preferred-register: '' }
- { id: 8, class: sreg_64, preferred-register: '' }
- { id: 9, class: vreg_64, preferred-register: '' }
- { id: 10, class: vgpr_32, preferred-register: '' }
- { id: 11, class: vgpr_32, preferred-register: '' }
- { id: 12, class: vgpr_32, preferred-register: '' }
- { id: 13, class: sreg_64, preferred-register: '' }
- { id: 14, class: vreg_64, preferred-register: '' }
- { id: 15, class: sreg_32_xm0, preferred-register: '' }
- { id: 16, class: vgpr_32, preferred-register: '' }
- { id: 17, class: sreg_64, preferred-register: '$vcc' }
- { id: 18, class: vgpr_32, preferred-register: '' }
- { id: 19, class: vgpr_32, preferred-register: '' }
- { id: 20, class: vgpr_32, preferred-register: '' }
- { id: 21, class: vgpr_32, preferred-register: '' }
- { id: 22, class: vgpr_32, preferred-register: '' }
- { id: 23, class: sreg_64, preferred-register: '' }
- { id: 24, class: sreg_64, preferred-register: '' }
- { id: 25, class: sreg_64, preferred-register: '' }
- { id: 26, class: sreg_64, preferred-register: '' }
- { id: 27, class: vgpr_32, preferred-register: '' }
liveins:
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
stack:
constants:
body: |
bb.0:
successors: %bb.1(0x80000000)
%25:sreg_64 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%0:vgpr_32 = FLAT_LOAD_DWORD undef %9:vreg_64, 0, 0, 0, implicit $exec, implicit $flat_scr :: (volatile load 4 from `float addrspace(1)* undef`, addrspace 1)
$exec = EXIT_WWM killed %25
%12:vgpr_32 = V_MBCNT_LO_U32_B32_e64 -1, 0, implicit $exec
%7:sreg_64 = S_MOV_B64 0
%26:sreg_64 = COPY killed %7
%27:vgpr_32 = COPY killed %12
bb.1:
successors: %bb.2(0x04000000), %bb.1(0x7c000000)
%24:sreg_64 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%20:vgpr_32 = COPY killed %27
%2:sreg_64 = COPY killed %26
%4:vgpr_32 = FLAT_LOAD_DWORD undef %14:vreg_64, 0, 0, 0, implicit $exec, implicit $flat_scr :: (volatile load 4 from `float addrspace(1)* undef`, addrspace 1)
$exec = EXIT_WWM killed %24
%22:vgpr_32 = V_ADD_I32_e32 -1, killed %20, implicit-def dead $vcc, implicit $exec
%17:sreg_64 = V_CMP_EQ_U32_e64 0, %22, implicit $exec
%6:sreg_64 = S_OR_B64 killed %17, killed %2, implicit-def $scc
%21:vgpr_32 = COPY killed %22
%26:sreg_64 = COPY %6
%27:vgpr_32 = COPY killed %21
$exec = S_ANDN2_B64_term $exec, %6, implicit-def $scc
S_CBRANCH_EXECNZ %bb.1, implicit $exec
S_BRANCH %bb.2
bb.2:
$exec = S_OR_B64 $exec, killed %6, implicit-def $scc
%23:sreg_64 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%18:vgpr_32 = V_ADD_F32_e32 killed %0, killed %4, implicit $exec
$exec = EXIT_WWM killed %23
early-clobber %19:vgpr_32 = COPY killed %18, implicit $exec
$vgpr0 = COPY killed %19
SI_RETURN_TO_EPILOG killed $vgpr0
...
|
