1 # RUN: llc -mtriple=s390x-linux-gnu -start-before=prologepilog %s -o - -print-after=prologepilog \
2 # RUN: -verify-machineinstrs 2>&1 | FileCheck %s
4 # Test that R6 when used for an argument is modelled as being live throughout
5 # the function when not saved in the prologue..
7 # CHECK: # *** IR Dump After Prologue/Epilogue Insertion & Frame Finalization (prologepilog) ***:
8 # CHECK-NEXT: # Machine code for function fun0:
10 # CHECK: liveins:{{.*}} $r6d
11 # CHECK: STMG killed $r7d, killed $r15d
12 # CHECK: STG renamable $r6d
13 # CHECK: End machine code for function fun0.
18 @g_181 = external dso_local global i32, align 4
19 @g_1390 = external dso_local constant ptr, align 8
21 define internal i8 @fun0(i8 %arg, i8 %arg1, i32 %arg2, i8 %arg3, ptr %arg4, float %F0, float %F1) #0 {
25 ; Same function but in a single block which will make the verifier complain
26 ; if R6 is killed by the original store before the point where the
27 ; RegScavenger inserts its (killing) store of R6.
28 define internal i8 @fun1(i8 %arg, i8 %arg1, i32 %arg2, i8 %arg3, ptr %arg4) #0 {
32 attributes #0 = { "frame-pointer"="all" }
38 tracksRegLiveness: true
46 - { id: 0, size: 96, alignment: 8 }
47 - { id: 1, size: 1960, alignment: 8 }
48 - { id: 2, size: 8, alignment: 8 }
49 - { id: 3, size: 320, alignment: 8 }
50 - { id: 4, size: 4, alignment: 4 }
51 - { id: 5, size: 8, alignment: 8 }
52 - { id: 6, size: 8, alignment: 8 }
53 - { id: 7, size: 4, alignment: 4 }
54 - { id: 8, size: 8, alignment: 8 }
55 - { id: 9, size: 4, alignment: 4 }
56 - { id: 10, size: 8, alignment: 8 }
57 - { id: 11, size: 8, alignment: 8 }
58 - { id: 12, size: 8, alignment: 8 }
59 - { id: 13, size: 8, alignment: 8 }
60 - { id: 14, size: 24, alignment: 4 }
61 - { id: 15, size: 4, alignment: 4 }
62 - { id: 16, size: 1792, alignment: 8 }
63 - { id: 17, size: 8, alignment: 8 }
64 - { id: 18, size: 8, alignment: 8 }
65 - { id: 19, size: 8, alignment: 8 }
66 - { id: 20, size: 1, alignment: 2 }
67 - { id: 21, size: 672, alignment: 8 }
68 - { id: 22, size: 4, alignment: 4 }
69 - { id: 23, size: 4, alignment: 4 }
70 - { id: 24, size: 4, alignment: 4 }
71 - { id: 25, size: 64, alignment: 8 }
72 machineFunctionInfo: {}
75 liveins: $f0s, $f2s, $r6d
77 STG killed renamable $r6d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
78 renamable $r0d = LARL @g_181
79 nofpexcept CEBR renamable $f0s, renamable $f2s, implicit-def $cc, implicit $fpc
80 STG renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
81 BRC 15, 4, %bb.2, implicit killed $cc
86 renamable $f0s = COPY killed renamable $f2s
91 STE killed renamable $f0s, undef renamable $r1d, 0, $noreg :: (volatile store (s32) into `ptr undef`)
92 renamable $r1d = nuw LA %stack.0, 16, $noreg
93 renamable $r2d = nuw LA %stack.0, 24, $noreg
94 renamable $r3d = LA %stack.0, 40, $noreg
95 renamable $r4d = LARL @g_1390
96 STG renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
97 renamable $r5d = nuw LA %stack.0, 48, $noreg
98 renamable $r14d = LA %stack.0, 72, $noreg
99 renamable $r13d = LA %stack.0, 80, $noreg
100 renamable $r12d = LA %stack.0, 56, $noreg
101 renamable $r10d = LA %stack.0, 0, $noreg
102 STG renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
103 renamable $r9d = LA %stack.0, 64, $noreg
104 renamable $r8d = LA %stack.0, 88, $noreg
105 renamable $r7d = nuw LA %stack.0, 8, $noreg
106 MVGHI %stack.1, 904, 0
107 STG killed renamable $r9d, $noreg, 0, $noreg :: (store (s64) into `ptr null`)
108 STG killed renamable $r3d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
109 STG killed renamable $r14d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
110 STG killed renamable $r7d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
111 STG killed renamable $r1d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
112 STG killed renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
113 STG killed renamable $r2d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
114 STG killed renamable $r5d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
115 STG killed renamable $r8d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
116 STG killed renamable $r12d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
117 STG killed renamable $r13d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
118 STG killed renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
120 STG killed renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
127 tracksRegLiveness: true
133 - { id: 0, size: 96, alignment: 8 }
134 - { id: 1, size: 1960, alignment: 8 }
135 - { id: 2, size: 8, alignment: 8 }
136 - { id: 3, size: 320, alignment: 8 }
137 - { id: 4, size: 4, alignment: 4 }
138 - { id: 5, size: 8, alignment: 8 }
139 - { id: 6, size: 8, alignment: 8 }
140 - { id: 7, size: 4, alignment: 4 }
141 - { id: 8, size: 8, alignment: 8 }
142 - { id: 9, size: 4, alignment: 4 }
143 - { id: 10, size: 8, alignment: 8 }
144 - { id: 11, size: 8, alignment: 8 }
145 - { id: 12, size: 8, alignment: 8 }
146 - { id: 13, size: 8, alignment: 8 }
147 - { id: 14, size: 24, alignment: 4 }
148 - { id: 15, size: 4, alignment: 4 }
149 - { id: 16, size: 1792, alignment: 8 }
150 - { id: 17, size: 8, alignment: 8 }
151 - { id: 18, size: 8, alignment: 8 }
152 - { id: 19, size: 8, alignment: 8 }
153 - { id: 20, size: 1, alignment: 2 }
154 - { id: 21, size: 672, alignment: 8 }
155 - { id: 22, size: 4, alignment: 4 }
156 - { id: 23, size: 4, alignment: 4 }
157 - { id: 24, size: 4, alignment: 4 }
158 - { id: 25, size: 64, alignment: 8 }
159 machineFunctionInfo: {}
164 STG killed renamable $r6d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
165 renamable $r0d = LARL @g_181
166 STG renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
167 renamable $r1d = nuw LA %stack.0, 16, $noreg
168 renamable $r2d = nuw LA %stack.0, 24, $noreg
169 renamable $r3d = LA %stack.0, 40, $noreg
170 renamable $r4d = LARL @g_1390
171 STG renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
172 renamable $r5d = nuw LA %stack.0, 48, $noreg
173 renamable $r14d = LA %stack.0, 72, $noreg
174 renamable $r13d = LA %stack.0, 80, $noreg
175 renamable $r12d = LA %stack.0, 56, $noreg
176 renamable $r10d = LA %stack.0, 0, $noreg
177 STG renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
178 renamable $r9d = LA %stack.0, 64, $noreg
179 renamable $r8d = LA %stack.0, 88, $noreg
180 renamable $r7d = nuw LA %stack.0, 8, $noreg
181 MVGHI %stack.1, 904, 0
182 STG killed renamable $r9d, $noreg, 0, $noreg :: (store (s64) into `ptr null`)
183 STG killed renamable $r3d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
184 STG killed renamable $r14d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
185 STG killed renamable $r7d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
186 STG killed renamable $r1d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
187 STG killed renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
188 STG killed renamable $r2d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
189 STG killed renamable $r5d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
190 STG killed renamable $r8d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
191 STG killed renamable $r12d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
192 STG killed renamable $r13d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
193 STG killed renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)
195 STG killed renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `ptr undef`)