1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs -stress-regalloc=2 -start-before=greedy -stop-after=virtregmap -o - %s | FileCheck %s
3
4# Test that a spill of a copy of exec is not folded to be a spill of exec directly.
5
6---
7
8name:            merge_sgpr_spill_into_copy_from_exec_lo
9tracksRegLiveness: true
10machineFunctionInfo:
11  isEntryFunction: true
12body:             |
13  bb.0:
14    ; CHECK-LABEL: name: merge_sgpr_spill_into_copy_from_exec_lo
15    ; CHECK: liveins: $vgpr0
16    ; CHECK: S_NOP 0, implicit-def $exec_lo
17    ; CHECK: $sgpr0 = S_MOV_B32 $exec_lo
18    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr0, 0, $vgpr0
19    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
20    ; CHECK: S_NOP 0, implicit-def dead renamable $sgpr1, implicit-def dead renamable $sgpr0, implicit killed renamable $sgpr0
21    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
22    ; CHECK: $exec_lo = S_MOV_B32 killed $sgpr0
23    ; CHECK: S_SENDMSG 0, implicit $m0, implicit $exec
24    S_NOP 0, implicit-def $exec_lo
25    %0:sreg_32 = COPY $exec_lo
26    S_NOP 0, implicit-def %1:sreg_32, implicit-def %2:sreg_32, implicit %0
27    $exec_lo = COPY %0
28    S_SENDMSG 0, implicit $m0, implicit $exec
29
30...
31---
32
33name:            merge_sgpr_spill_into_copy_from_exec_hi
34tracksRegLiveness: true
35machineFunctionInfo:
36  isEntryFunction: true
37body:             |
38  bb.0:
39    ; CHECK-LABEL: name: merge_sgpr_spill_into_copy_from_exec_hi
40    ; CHECK: liveins: $vgpr0
41    ; CHECK: S_NOP 0, implicit-def $exec_hi
42    ; CHECK: $sgpr0 = S_MOV_B32 $exec_hi
43    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr0, 0, $vgpr0
44    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
45    ; CHECK: S_NOP 0, implicit-def dead renamable $sgpr1, implicit-def dead renamable $sgpr0, implicit killed renamable $sgpr0
46    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
47    ; CHECK: $exec_hi = S_MOV_B32 killed $sgpr0
48    ; CHECK: S_SENDMSG 0, implicit $m0, implicit $exec
49    S_NOP 0, implicit-def $exec_hi
50    %0:sreg_32 = COPY $exec_hi
51    S_NOP 0, implicit-def %1:sreg_32, implicit-def %2:sreg_32, implicit %0
52    $exec_hi = COPY %0
53    S_SENDMSG 0, implicit $m0, implicit $exec
54
55...
56---
57
58name:            merge_sgpr_spill_into_copy_from_exec
59tracksRegLiveness: true
60machineFunctionInfo:
61  isEntryFunction: true
62body:             |
63  bb.0:
64    ; CHECK-LABEL: name: merge_sgpr_spill_into_copy_from_exec
65    ; CHECK: liveins: $vgpr0
66    ; CHECK: S_NOP 0, implicit-def $exec
67    ; CHECK: $sgpr0_sgpr1 = S_MOV_B64 $exec
68    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr0, 0, $vgpr0, implicit-def $sgpr0_sgpr1, implicit $sgpr0_sgpr1
69    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr1, 1, $vgpr0, implicit $sgpr0_sgpr1
70    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0, implicit-def $sgpr0_sgpr1
71    ; CHECK: $sgpr1 = V_READLANE_B32 $vgpr0, 1
72    ; CHECK: S_NOP 0, implicit-def dead renamable $sgpr2_sgpr3, implicit-def dead renamable $sgpr0_sgpr1, implicit killed renamable $sgpr0_sgpr1
73    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0, implicit-def $sgpr0_sgpr1
74    ; CHECK: $sgpr1 = V_READLANE_B32 $vgpr0, 1
75    ; CHECK: $exec = S_MOV_B64 killed $sgpr0_sgpr1
76    ; CHECK: S_SENDMSG 0, implicit $m0, implicit $exec
77    S_NOP 0, implicit-def $exec
78    %0:sreg_64 = COPY $exec
79    S_NOP 0, implicit-def %1:sreg_64, implicit-def %2:sreg_64, implicit %0
80    $exec = COPY %0
81    S_SENDMSG 0, implicit $m0, implicit $exec
82
83...
84
85# Test that a reload into a copy of exec is not folded to be a reload of exec directly.
86
87---
88
89name:            reload_sgpr_spill_into_copy_to_exec_lo
90tracksRegLiveness: true
91machineFunctionInfo:
92  isEntryFunction: true
93body:             |
94  bb.0:
95    ; CHECK-LABEL: name: reload_sgpr_spill_into_copy_to_exec_lo
96    ; CHECK: liveins: $vgpr0
97    ; CHECK: S_NOP 0, implicit-def renamable $sgpr0, implicit-def dead renamable $sgpr1, implicit-def $exec_lo
98    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr0, 0, $vgpr0
99    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
100    ; CHECK: S_NOP 0, implicit killed renamable $sgpr0, implicit-def dead renamable $sgpr1, implicit-def dead renamable $sgpr0
101    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
102    ; CHECK: $exec_lo = S_MOV_B32 killed $sgpr0
103    ; CHECK: S_SENDMSG 0, implicit $m0, implicit $exec
104    S_NOP 0, implicit-def %0:sreg_32, implicit-def %1:sreg_32, implicit-def $exec_lo
105    S_NOP 0, implicit %0, implicit-def %3:sreg_32, implicit-def %4:sreg_32
106    $exec_lo = COPY %0
107    S_SENDMSG 0, implicit $m0, implicit $exec
108
109...
110---
111
112name:            reload_sgpr_spill_into_copy_to_exec_hi
113tracksRegLiveness: true
114machineFunctionInfo:
115  isEntryFunction: true
116body:             |
117  bb.0:
118    ; CHECK-LABEL: name: reload_sgpr_spill_into_copy_to_exec_hi
119    ; CHECK: liveins: $vgpr0
120    ; CHECK: S_NOP 0, implicit-def renamable $sgpr0, implicit-def dead renamable $sgpr1, implicit-def $exec_hi
121    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr0, 0, $vgpr0
122    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
123    ; CHECK: S_NOP 0, implicit killed renamable $sgpr0, implicit-def dead renamable $sgpr1, implicit-def dead renamable $sgpr0
124    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0
125    ; CHECK: $exec_hi = S_MOV_B32 killed $sgpr0
126    ; CHECK: S_SENDMSG 0, implicit $m0, implicit $exec
127    S_NOP 0, implicit-def %0:sreg_32, implicit-def %1:sreg_32, implicit-def $exec_hi
128    S_NOP 0, implicit %0, implicit-def %3:sreg_32, implicit-def %4:sreg_32
129    $exec_hi = COPY %0
130    S_SENDMSG 0, implicit $m0, implicit $exec
131
132...
133---
134
135name:            reload_sgpr_spill_into_copy_to_exec
136tracksRegLiveness: true
137machineFunctionInfo:
138  isEntryFunction: true
139body:             |
140  bb.0:
141    ; CHECK-LABEL: name: reload_sgpr_spill_into_copy_to_exec
142    ; CHECK: liveins: $vgpr0
143    ; CHECK: S_NOP 0, implicit-def renamable $sgpr0_sgpr1, implicit-def dead renamable $sgpr2_sgpr3, implicit-def $exec
144    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr0, 0, $vgpr0, implicit-def $sgpr0_sgpr1, implicit $sgpr0_sgpr1
145    ; CHECK: $vgpr0 = V_WRITELANE_B32 killed $sgpr1, 1, $vgpr0, implicit $sgpr0_sgpr1
146    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0, implicit-def $sgpr0_sgpr1
147    ; CHECK: $sgpr1 = V_READLANE_B32 $vgpr0, 1
148    ; CHECK: S_NOP 0, implicit killed renamable $sgpr0_sgpr1, implicit-def dead renamable $sgpr2_sgpr3, implicit-def dead renamable $sgpr0_sgpr1
149    ; CHECK: $sgpr0 = V_READLANE_B32 $vgpr0, 0, implicit-def $sgpr0_sgpr1
150    ; CHECK: $sgpr1 = V_READLANE_B32 $vgpr0, 1
151    ; CHECK: $exec = S_MOV_B64 killed $sgpr0_sgpr1
152    ; CHECK: S_SENDMSG 0, implicit $m0, implicit $exec
153    S_NOP 0, implicit-def %0:sreg_64, implicit-def %1:sreg_64, implicit-def $exec
154    S_NOP 0, implicit %0, implicit-def %3:sreg_64, implicit-def %4:sreg_64
155    $exec = COPY %0
156    S_SENDMSG 0, implicit $m0, implicit $exec
157
158...
159