1 # RUN: llc < %s -x mir -march=hexagon -run-pass=modulo-schedule-test -pipeliner-experimental-cg=true | FileCheck %s
3 # Simple check for this basic correctness test; ensure all instructions are in stage 0 in
4 # the prolog and stage 3 in the epilog.
8 # CHECK: intregs = S2_addasl_rrri %{{[0-9]+}}, %{{[0-9]+}}, 1, post-instr-symbol <mcsymbol Stage-0_Cycle-0>
9 # CHECK: intregs = L2_loadruh_io %{{[0-9]+}}, -4, post-instr-symbol <mcsymbol Stage-3_Cycle-0> :: (load (s16) from %ir.cgep2, !tbaa !0)
10 # CHECK: intregs = S2_storerh_pi %{{[0-9]+}}, -2, %{{[0-9]+}}, post-instr-symbol <mcsymbol Stage-3_Cycle-0> :: (store (s16) into %ir.lsr.iv, !tbaa !0)
11 # CHECK: intregs = nsw A2_addi %{{[0-9]+}}, -1, post-instr-symbol <mcsymbol Stage-0_Cycle-0>
12 # CHECK: ENDLOOP0 %bb.{{[0-9]+}}, implicit-def $pc, implicit-def $lc0, implicit $sa0, implicit $lc0
16 ; ModuleID = '/google/src/cloud/jmolloy/tc/google3/third_party/llvm/llvm/test/CodeGen/Hexagon/swp-phi-start.ll'
17 source_filename = "/google/src/cloud/jmolloy/tc/google3/third_party/llvm/llvm/test/CodeGen/Hexagon/swp-phi-start.ll"
18 target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"
20 ; Function Attrs: nounwind
21 define void @f0(i32 %a0, ptr nocapture %a1) #0 {
23 br i1 undef, label %b1, label %b2.preheader
26 br i1 undef, label %b3, label %b2.preheader
28 b2.preheader: ; preds = %b0, %b1
29 %cgep = getelementptr i16, ptr %a1, i32 undef
32 b2: ; preds = %b2.preheader, %b2
33 %lsr.iv = phi ptr [ %cgep, %b2.preheader ], [ %cgep3, %b2 ]
34 %v1 = phi i32 [ %v7, %b2 ], [ undef, %b2.preheader ]
35 %v2 = phi i32 [ %v1, %b2 ], [ %a0, %b2.preheader ]
36 %v3 = add nsw i32 %v2, -2
37 %cgep2 = getelementptr inbounds i16, ptr %a1, i32 %v3
38 %v5 = load i16, ptr %cgep2, align 2, !tbaa !0
39 store i16 %v5, ptr %lsr.iv, align 2, !tbaa !0
40 %v7 = add nsw i32 %v1, -1
41 %v8 = icmp sgt i32 %v7, 0
42 %cgep3 = getelementptr i16, ptr %lsr.iv, i32 -1
43 br i1 %v8, label %b2, label %b3
45 b3: ; preds = %b2, %b1
49 attributes #0 = { nounwind "target-cpu"="hexagonv55" }
52 !1 = !{!"short", !2, i64 0}
53 !2 = !{!"omnipotent char", !3, i64 0}
54 !3 = !{!"Simple C/C++ TBAA"}
60 exposesReturnsTwice: false
62 regBankSelected: false
65 tracksRegLiveness: true
68 - { id: 0, class: intregs, preferred-register: '' }
69 - { id: 1, class: intregs, preferred-register: '' }
70 - { id: 2, class: intregs, preferred-register: '' }
71 - { id: 3, class: intregs, preferred-register: '' }
72 - { id: 4, class: intregs, preferred-register: '' }
73 - { id: 5, class: intregs, preferred-register: '' }
74 - { id: 6, class: intregs, preferred-register: '' }
75 - { id: 7, class: intregs, preferred-register: '' }
76 - { id: 8, class: predregs, preferred-register: '' }
77 - { id: 9, class: predregs, preferred-register: '' }
78 - { id: 10, class: intregs, preferred-register: '' }
79 - { id: 11, class: intregs, preferred-register: '' }
80 - { id: 12, class: intregs, preferred-register: '' }
81 - { id: 13, class: predregs, preferred-register: '' }
82 - { id: 14, class: intregs, preferred-register: '' }
84 - { reg: '$r0', virtual-reg: '%6' }
85 - { reg: '$r1', virtual-reg: '%7' }
87 isFrameAddressTaken: false
88 isReturnAddressTaken: false
97 maxCallFrameSize: 4294967295
98 cvBytesOfCalleeSavedRegisters: 0
99 hasOpaqueSPAdjustment: false
101 hasMustTailInVarArgFunc: false
109 machineFunctionInfo: {}
112 successors: %bb.1(0x40000000), %bb.2(0x40000000)
115 %7:intregs = COPY $r1
116 %6:intregs = COPY $r0
117 %8:predregs = IMPLICIT_DEF
118 J2_jumpt %8, %bb.2, implicit-def dead $pc
119 J2_jump %bb.1, implicit-def dead $pc
122 successors: %bb.4(0x40000000), %bb.2(0x40000000)
124 %9:predregs = IMPLICIT_DEF
125 J2_jumpt %9, %bb.4, implicit-def dead $pc
126 J2_jump %bb.2, implicit-def dead $pc
129 successors: %bb.3(0x80000000)
131 %10:intregs = IMPLICIT_DEF
132 %14:intregs = COPY %10
133 J2_loop0r %bb.3, %14, implicit-def $lc0, implicit-def $sa0, implicit-def $usr
135 bb.3.b2 (machine-block-address-taken):
136 successors: %bb.3(0x7c000000), %bb.4(0x04000000)
138 %1:intregs = PHI %7, %bb.2, %5, %bb.3, post-instr-symbol <mcsymbol Stage-3_Cycle-0>
139 %2:intregs = PHI %10, %bb.2, %4, %bb.3, post-instr-symbol <mcsymbol Stage-0_Cycle-0>
140 %3:intregs = PHI %6, %bb.2, %2, %bb.3, post-instr-symbol <mcsymbol Stage-0_Cycle-0>
141 %11:intregs = S2_addasl_rrri %7, %3, 1, post-instr-symbol <mcsymbol Stage-0_Cycle-0>
142 %12:intregs = L2_loadruh_io %11, -4, post-instr-symbol <mcsymbol Stage-3_Cycle-0> :: (load (s16) from %ir.cgep2, !tbaa !0)
143 %5:intregs = S2_storerh_pi %1, -2, %12, post-instr-symbol <mcsymbol Stage-3_Cycle-0> :: (store (s16) into %ir.lsr.iv, !tbaa !0)
144 %4:intregs = nsw A2_addi %2, -1, post-instr-symbol <mcsymbol Stage-0_Cycle-0>
145 ENDLOOP0 %bb.3, implicit-def $pc, implicit-def $lc0, implicit $sa0, implicit $lc0
146 J2_jump %bb.4, implicit-def dead $pc
149 PS_jmpret $r31, implicit-def dead $pc