1 # RUN: llc -march=amdgcn -run-pass simple-register-coalescing -o - %s | FileCheck %s
3 # Check that coalescer does not create wider register tuple than in source
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 $vgpr0_vgpr1, %6,
20 exposesReturnsTwice: false
22 regBankSelected: false
24 tracksRegLiveness: true
26 - { id: 1, class: sreg_32_xm0, preferred-register: '%1' }
27 - { id: 2, class: vreg_64, preferred-register: '%2' }
28 - { id: 3, class: vreg_64 }
29 - { id: 4, class: vreg_64 }
30 - { id: 5, class: vreg_64 }
31 - { id: 6, class: vreg_96 }
32 - { id: 7, class: vreg_96 }
33 - { id: 8, class: vreg_128 }
34 - { id: 9, class: vreg_128 }
36 - { reg: '$sgpr6', virtual-reg: '%1' }
38 isFrameAddressTaken: false
39 isReturnAddressTaken: false
48 hasOpaqueSPAdjustment: false
50 hasMustTailInVarArgFunc: false
53 liveins: $sgpr0, $vgpr0_vgpr1
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, implicit $exec, implicit $flat_scr
63 undef %7.sub0_sub1 = COPY %6
64 %7.sub2 = COPY %3.sub0
65 FLAT_STORE_DWORDX3 $vgpr0_vgpr1, killed %7, 0, 0, implicit $exec, implicit $flat_scr
68 undef %9.sub0_sub1_sub2 = COPY %8
69 %9.sub3 = COPY %3.sub0
70 FLAT_STORE_DWORDX4 $vgpr0_vgpr1, killed %9, 0, 0, implicit $exec, implicit $flat_scr