1 # RUN: llc -mtriple=s390x-linux-gnu -mcpu=z15 -start-before=greedy %s -o - \
4 # Test that regalloc manages (via regalloc hints) to avoid a LOCRMux jump
5 # sequence expansion, and a SELR/LOCR instuction is emitted.
9 source_filename = "tc.ll"
10 target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
12 @globvar = external global i32
14 declare void @fun() #0
16 define void @fun1() #0 {
20 bb6: ; preds = %bb33, %bb5
21 %tmp = phi i1 [ %tmp34, %bb33 ], [ undef, %bb5 ]
24 bb7: ; preds = %bb7, %bb6
25 %lsr.iv1 = phi ptr [ %0, %bb7 ], [ undef, %bb6 ]
26 %tmp8 = phi i32 [ %tmp27, %bb7 ], [ -1000000, %bb6 ]
27 %tmp9 = phi i64 [ %tmp28, %bb7 ], [ 0, %bb6 ]
28 %lsr3 = trunc i64 %tmp9 to i32
29 %lsr.iv12 = bitcast ptr %lsr.iv1 to ptr
30 %tmp11 = load i32, ptr %lsr.iv12
31 %tmp12 = icmp sgt i32 %tmp11, undef
32 %tmp13 = trunc i64 %tmp9 to i32
33 %tmp14 = select i1 %tmp12, i32 %lsr3, i32 0
34 %tmp15 = select i1 %tmp12, i32 %tmp13, i32 %tmp8
35 %tmp16 = load i32, ptr undef
36 %tmp17 = select i1 false, i32 undef, i32 %tmp14
37 %tmp18 = select i1 false, i32 undef, i32 %tmp15
38 %tmp19 = select i1 false, i32 %tmp16, i32 undef
39 %tmp20 = select i1 undef, i32 undef, i32 %tmp17
40 %tmp21 = select i1 undef, i32 undef, i32 %tmp18
41 %tmp22 = select i1 undef, i32 undef, i32 %tmp19
42 %tmp23 = or i64 %tmp9, 3
43 %tmp24 = icmp sgt i32 undef, %tmp22
44 %tmp25 = trunc i64 %tmp23 to i32
45 %tmp26 = select i1 %tmp24, i32 %tmp25, i32 %tmp20
46 %tmp27 = select i1 %tmp24, i32 %tmp25, i32 %tmp21
47 %tmp28 = add nuw nsw i64 %tmp9, 4
48 %tmp29 = icmp eq i64 undef, 0
49 %scevgep = getelementptr [512 x i32], ptr %lsr.iv1, i64 0, i64 4
50 %0 = bitcast ptr %scevgep to ptr
51 br i1 %tmp29, label %bb30, label %bb7
54 %tmp32 = icmp sgt i32 %tmp27, -1000000
55 br i1 %tmp32, label %bb33, label %bb35
59 store i32 %tmp26, ptr @globvar
60 %tmp34 = icmp ugt i32 undef, 1
64 br i1 %tmp, label %bb37, label %bb38
73 ; Function Attrs: nounwind
74 declare void @llvm.stackprotector(ptr, ptr) #1
76 attributes #0 = { "target-cpu"="z15" }
77 attributes #1 = { nounwind }
87 tracksRegLiveness: true
89 - { id: 0, class: grx32bit }
90 - { id: 1, class: addr64bit }
91 - { id: 2, class: grx32bit }
92 - { id: 3, class: addr64bit }
93 - { id: 4, class: gr32bit }
94 - { id: 5, class: grx32bit }
95 - { id: 6, class: gr64bit }
96 - { id: 7, class: gr64bit }
97 - { id: 8, class: grx32bit }
98 - { id: 9, class: grx32bit }
99 - { id: 10, class: gr64bit }
100 - { id: 11, class: grx32bit }
101 - { id: 12, class: gr64bit }
102 - { id: 13, class: grx32bit }
103 - { id: 14, class: gr32bit }
104 - { id: 15, class: gr32bit }
105 - { id: 16, class: grx32bit }
106 - { id: 17, class: grx32bit }
107 - { id: 18, class: gr32bit }
108 - { id: 19, class: addr64bit }
109 - { id: 20, class: grx32bit }
110 - { id: 21, class: gr32bit }
111 - { id: 22, class: gr64bit }
112 - { id: 23, class: grx32bit }
113 - { id: 24, class: grx32bit }
114 - { id: 25, class: grx32bit }
115 - { id: 26, class: addr64bit }
116 - { id: 27, class: grx32bit }
117 - { id: 28, class: addr64bit }
123 %25:grx32bit = IMPLICIT_DEF
126 %28:addr64bit = LGHI 0
127 %27:grx32bit = IIFMux 4293967296
128 %26:addr64bit = IMPLICIT_DEF
131 successors: %bb.3(0x04000000), %bb.2(0x7c000000)
133 %14:gr32bit = LMux %26, 0, $noreg :: (load (s32) from %ir.lsr.iv12)
134 CR %14, undef %15:gr32bit, implicit-def $cc
135 %16:grx32bit = COPY %28.subreg_l32
136 %16:grx32bit = LOCHIMux %16, 0, 14, 12, implicit $cc
137 %17:grx32bit = SELRMux %27, %28.subreg_l32, 14, 2, implicit killed $cc
138 %18:gr32bit = LMux undef %19:addr64bit, 0, $noreg :: (load (s32) from `ptr undef`)
139 %20:grx32bit = COPY %28.subreg_l32
140 %20:grx32bit = OILMux %20, 3, implicit-def dead $cc
141 CR undef %21:gr32bit, %18, implicit-def $cc
142 %4:gr32bit = SELRMux %16, %20, 14, 2, implicit $cc
143 %27:grx32bit = SELRMux %17, %20, 14, 2, implicit killed $cc
144 %28:addr64bit = nuw nsw LA %28, 4, $noreg
145 %26:addr64bit = LA %26, 16, $noreg
146 CGHI undef %22:gr64bit, 0, implicit-def $cc
147 BRC 14, 6, %bb.2, implicit killed $cc
151 successors: %bb.4(0x7fffffff), %bb.5(0x00000001)
153 CFIMux %27, -999999, implicit-def $cc
154 BRC 14, 4, %bb.5, implicit killed $cc
158 CallBRASL @fun, csr_systemz_elf, implicit-def dead $r14d, implicit-def dead $cc
159 STRL %4, @globvar :: (store (s32) into @globvar)
160 CLFIMux undef %23:grx32bit, 1, implicit-def $cc
161 %25:grx32bit = LHIMux 0
162 %25:grx32bit = LOCHIMux %25, 1, 14, 2, implicit killed $cc
166 successors: %bb.6, %bb.7
168 TMLMux %25, 1, implicit-def $cc
169 BRC 15, 8, %bb.7, implicit killed $cc