1 # RUN: llc -march=amdgcn -run-pass simple-register-coalescing -o - %s | FileCheck %s 2 3 # Check that coalescer does not create wider register tuple than in source 4 5 # CHECK: - { id: 2, class: vreg_64, preferred-register: '' } 6 # CHECK: - { id: 3, class: vreg_64, preferred-register: '' } 7 # CHECK: - { id: 4, class: vreg_64, preferred-register: '' } 8 # CHECK: - { id: 5, class: vreg_96, preferred-register: '' } 9 # CHECK: - { id: 6, class: vreg_96, preferred-register: '' } 10 # CHECK: - { id: 7, class: vreg_128, preferred-register: '' } 11 # CHECK: - { id: 8, class: vreg_128, preferred-register: '' } 12 # No more registers shall be defined 13 # CHECK-NEXT: liveins: 14 # CHECK: FLAT_STORE_DWORDX2 $vgpr0_vgpr1, %4, 15 # CHECK: FLAT_STORE_DWORDX3 $vgpr0_vgpr1, %6, 16 17 --- 18 name: main 19 alignment: 0 20 exposesReturnsTwice: false 21 legalized: false 22 regBankSelected: false 23 selected: false 24 tracksRegLiveness: true 25 registers: 26 - { id: 1, class: sreg_32_xm0, preferred-register: '%1' } 27 - { id: 2, class: vreg_64, preferred-register: '%2' } 28 - { id: 3, class: vreg_64 } 29 - { id: 4, class: vreg_64 } 30 - { id: 5, class: vreg_64 } 31 - { id: 6, class: vreg_96 } 32 - { id: 7, class: vreg_96 } 33 - { id: 8, class: vreg_128 } 34 - { id: 9, class: vreg_128 } 35 liveins: 36 - { reg: '$sgpr6', virtual-reg: '%1' } 37 frameInfo: 38 isFrameAddressTaken: false 39 isReturnAddressTaken: false 40 hasStackMap: false 41 hasPatchPoint: false 42 stackSize: 0 43 offsetAdjustment: 0 44 maxAlignment: 0 45 adjustsStack: false 46 hasCalls: false 47 maxCallFrameSize: 0 48 hasOpaqueSPAdjustment: false 49 hasVAStart: false 50 hasMustTailInVarArgFunc: false 51 body: | 52 bb.0.entry: 53 liveins: $sgpr0, $vgpr0_vgpr1 54 55 %3 = IMPLICIT_DEF 56 undef %4.sub0 = COPY $sgpr0 57 %4.sub1 = COPY %3.sub0 58 undef %5.sub0 = COPY %4.sub1 59 %5.sub1 = COPY %4.sub0 60 FLAT_STORE_DWORDX2 $vgpr0_vgpr1, killed %5, 0, 0, 0, implicit $exec, implicit $flat_scr 61 62 %6 = IMPLICIT_DEF 63 undef %7.sub0_sub1 = COPY %6 64 %7.sub2 = COPY %3.sub0 65 FLAT_STORE_DWORDX3 $vgpr0_vgpr1, killed %7, 0, 0, 0, implicit $exec, implicit $flat_scr 66 67 %8 = IMPLICIT_DEF 68 undef %9.sub0_sub1_sub2 = COPY %8 69 %9.sub3 = COPY %3.sub0 70 FLAT_STORE_DWORDX4 $vgpr0_vgpr1, killed %9, 0, 0, 0, implicit $exec, implicit $flat_scr 71 ... 72
