1 # RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
3 # Test the extension of debug ranges from 3 predecessors.
4 # Generated from the source file LiveDebugValues-3preds.c:
6 # int add(int x, int y, int z, int a) {
8 # for (i = 0; i < x * y; i++) {
24 # with clang -g -O1 -c -emit-llvm LiveDebugValues-3preds.c -S -o live-debug-values-3preds.ll
25 # then llc -stop-after stackmap-liveness live-debug-values-3preds.ll -o /dev/null > live-debug-values-3preds.mir
27 # CHECK: ![[X_VAR:[0-9]+]] = !DILocalVariable(name: "x", {{.*}})
28 # CHECK: ![[Y_VAR:[0-9]+]] = !DILocalVariable(name: "y", {{.*}})
29 # CHECK: ![[Z_VAR:[0-9]+]] = !DILocalVariable(name: "z", {{.*}})
31 # DBG_VALUE for variables "x", "y" and "z" are extended into %bb.9 from its
32 # predecessors %bb.0, %bb.2 and %bb.8.
33 # CHECK: bb.9.for.end:
34 # CHECK-DAG: DBG_VALUE $edi, $noreg, ![[X_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
35 # CHECK-DAG: DBG_VALUE $esi, $noreg, ![[Y_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
36 # CHECK-DAG: DBG_VALUE $edx, $noreg, ![[Z_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
40 ; ModuleID = 'live-debug-values-3preds.ll'
41 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
42 target triple = "x86_64-unknown-linux-gnu"
44 ; Function Attrs: norecurse nounwind readnone uwtable
45 define i32 @add(i32 %x, i32 %y, i32 %z, i32 %a) #0 !dbg !4 {
47 tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !9, metadata !17), !dbg !18
48 tail call void @llvm.dbg.value(metadata i32 %y, i64 0, metadata !10, metadata !17), !dbg !19
49 tail call void @llvm.dbg.value(metadata i32 %z, i64 0, metadata !11, metadata !17), !dbg !21
50 tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !12, metadata !17), !dbg !23
51 tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !13, metadata !17), !dbg !25
52 %mul = mul nsw i32 %y, %x, !dbg !26
53 %cmp.24 = icmp sgt i32 %mul, 0, !dbg !30
54 br i1 %cmp.24, label %for.body.preheader, label %for.end, !dbg !31
56 for.body.preheader: ; preds = %entry
57 br label %for.body, !dbg !32
59 for.cond: ; preds = %if.end.6
60 %cmp = icmp slt i32 %inc, %mul, !dbg !30
61 br i1 %cmp, label %for.body, label %for.end, !dbg !31
63 for.body: ; preds = %for.cond, %for.body.preheader
64 %i.025 = phi i32 [ %inc, %for.cond ], [ 0, %for.body.preheader ]
65 %0 = icmp sgt i32 %x, 0
66 br i1 %0, label %if.then, label %if.end, !dbg !35
68 if.then: ; preds = %for.body
69 %mul2 = mul nsw i32 %a, %x, !dbg !36
70 tail call void @llvm.dbg.value(metadata i32 %mul2, i64 0, metadata !12, metadata !17), !dbg !23
71 br label %for.end, !dbg !38
73 if.end: ; preds = %for.body
74 %1 = icmp sgt i32 %y, 0
75 br i1 %1, label %if.then.4, label %if.end.6, !dbg !39
77 if.then.4: ; preds = %if.end
78 %mul5 = mul nsw i32 %a, %y, !dbg !40
79 tail call void @llvm.dbg.value(metadata i32 %mul5, i64 0, metadata !12, metadata !17), !dbg !23
80 br label %for.end, !dbg !43
82 if.end.6: ; preds = %if.end
83 %2 = icmp sgt i32 %z, 0
84 %inc = add nuw nsw i32 %i.025, 1, !dbg !44
85 tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !13, metadata !17), !dbg !25
86 br i1 %2, label %if.then.8, label %for.cond, !dbg !45
88 if.then.8: ; preds = %if.end.6
89 %mul9 = mul nsw i32 %a, %z, !dbg !46
90 tail call void @llvm.dbg.value(metadata i32 %mul9, i64 0, metadata !12, metadata !17), !dbg !23
91 br label %for.end, !dbg !49
93 for.end: ; preds = %for.cond, %if.then.8, %if.then.4, %if.then, %entry
94 %a.addr.0 = phi i32 [ %mul2, %if.then ], [ %mul5, %if.then.4 ], [ %mul9, %if.then.8 ], [ %a, %entry ], [ %a, %for.cond ]
95 ret i32 %a.addr.0, !dbg !50
98 ; Function Attrs: nounwind readnone
99 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
101 attributes #0 = { norecurse nounwind readnone uwtable }
102 attributes #1 = { nounwind readnone }
105 !llvm.module.flags = !{!14, !15}
108 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 253049) ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
109 !1 = !DIFile(filename: "LiveDebugValues-3preds.c", directory: "/home/vt/julia/test/tvvikram")
111 !4 = distinct !DISubprogram(name: "add", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
112 !5 = !DISubroutineType(types: !6)
113 !6 = !{!7, !7, !7, !7, !7}
114 !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
115 !8 = !{!9, !10, !11, !12, !13}
116 !9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 1, type: !7)
117 !10 = !DILocalVariable(name: "y", arg: 2, scope: !4, file: !1, line: 1, type: !7)
118 !11 = !DILocalVariable(name: "z", arg: 3, scope: !4, file: !1, line: 1, type: !7)
119 !12 = !DILocalVariable(name: "a", arg: 4, scope: !4, file: !1, line: 1, type: !7)
120 !13 = !DILocalVariable(name: "i", scope: !4, file: !1, line: 2, type: !7)
121 !14 = !{i32 2, !"Dwarf Version", i32 4}
122 !15 = !{i32 2, !"Debug Info Version", i32 3}
123 !16 = !{!"clang version 3.8.0 (trunk 253049) "}
124 !17 = !DIExpression()
125 !18 = !DILocation(line: 1, column: 13, scope: !4)
126 !19 = !DILocation(line: 1, column: 20, scope: !20)
127 !20 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1)
128 !21 = !DILocation(line: 1, column: 27, scope: !22)
129 !22 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 2)
130 !23 = !DILocation(line: 1, column: 34, scope: !24)
131 !24 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 3)
132 !25 = !DILocation(line: 2, column: 7, scope: !20)
133 !26 = !DILocation(line: 3, column: 21, scope: !27)
134 !27 = !DILexicalBlockFile(scope: !28, file: !1, discriminator: 1)
135 !28 = distinct !DILexicalBlock(scope: !29, file: !1, line: 3, column: 3)
136 !29 = distinct !DILexicalBlock(scope: !4, file: !1, line: 3, column: 3)
137 !30 = !DILocation(line: 3, column: 17, scope: !27)
138 !31 = !DILocation(line: 3, column: 3, scope: !27)
139 !32 = !DILocation(line: 4, column: 11, scope: !33)
140 !33 = distinct !DILexicalBlock(scope: !34, file: !1, line: 4, column: 9)
141 !34 = distinct !DILexicalBlock(scope: !28, file: !1, line: 3, column: 31)
142 !35 = !DILocation(line: 4, column: 9, scope: !34)
143 !36 = !DILocation(line: 5, column: 13, scope: !37)
144 !37 = distinct !DILexicalBlock(scope: !33, file: !1, line: 4, column: 16)
145 !38 = !DILocation(line: 6, column: 7, scope: !37)
146 !39 = !DILocation(line: 8, column: 9, scope: !34)
147 !40 = !DILocation(line: 9, column: 13, scope: !41)
148 !41 = distinct !DILexicalBlock(scope: !42, file: !1, line: 8, column: 16)
149 !42 = distinct !DILexicalBlock(scope: !34, file: !1, line: 8, column: 9)
150 !43 = !DILocation(line: 10, column: 7, scope: !41)
151 !44 = !DILocation(line: 3, column: 27, scope: !28)
152 !45 = !DILocation(line: 12, column: 9, scope: !34)
153 !46 = !DILocation(line: 13, column: 13, scope: !47)
154 !47 = distinct !DILexicalBlock(scope: !48, file: !1, line: 12, column: 16)
155 !48 = distinct !DILexicalBlock(scope: !34, file: !1, line: 12, column: 9)
156 !49 = !DILocation(line: 14, column: 7, scope: !47)
157 !50 = !DILocation(line: 17, column: 3, scope: !4)
163 exposesReturnsTwice: false
164 tracksRegLiveness: true
171 isFrameAddressTaken: false
172 isReturnAddressTaken: false
181 hasOpaqueSPAdjustment: false
183 hasMustTailInVarArgFunc: false
186 successors: %bb.1.for.body.preheader(20), %bb.9.for.end(12)
187 liveins: $ecx, $edi, $edx, $esi
189 DBG_VALUE $edi, _, !9, !17, debug-location !18
190 DBG_VALUE $esi, _, !10, !17, debug-location !19
191 DBG_VALUE $edx, _, !11, !17, debug-location !21
192 DBG_VALUE $ecx, _, !12, !17, debug-location !23
193 DBG_VALUE 0, 0, !13, !17, debug-location !25
194 $r8d = MOV32rr $esi, debug-location !26
195 $r8d = IMUL32rr killed $r8d, $edi, implicit-def dead $eflags, debug-location !26
196 TEST32rr $r8d, $r8d, implicit-def $eflags, debug-location !31
197 JCC_1 %bb.9.for.end, 14, implicit $eflags
199 bb.1.for.body.preheader:
200 successors: %bb.3.for.body(0)
201 liveins: $ecx, $edi, $edx, $esi, $r8d
203 DBG_VALUE $edi, _, !9, !17, debug-location !18
204 DBG_VALUE $esi, _, !10, !17, debug-location !19
205 DBG_VALUE $edx, _, !11, !17, debug-location !21
206 DBG_VALUE $ecx, _, !12, !17, debug-location !23
207 DBG_VALUE 0, 0, !13, !17, debug-location !25
208 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
210 bb.3.for.body (align 4):
211 successors: %bb.4.if.then(4), %bb.5.if.end(124)
212 liveins: $eax, $ecx, $edi, $edx, $esi, $r8d
214 DBG_VALUE $edi, _, !9, !17, debug-location !18
215 DBG_VALUE $esi, _, !10, !17, debug-location !19
216 DBG_VALUE $edx, _, !11, !17, debug-location !21
217 DBG_VALUE $ecx, _, !12, !17, debug-location !23
218 DBG_VALUE 0, 0, !13, !17, debug-location !25
219 TEST32rr $edi, $edi, implicit-def $eflags, debug-location !35
220 JCC_1 %bb.4.if.then, 15, implicit $eflags
223 successors: %bb.6.if.then.4(4), %bb.7.if.end.6(124)
224 liveins: $eax, $ecx, $edi, $edx, $esi, $r8d
226 DBG_VALUE $edi, _, !9, !17, debug-location !18
227 DBG_VALUE $esi, _, !10, !17, debug-location !19
228 DBG_VALUE $edx, _, !11, !17, debug-location !21
229 DBG_VALUE $ecx, _, !12, !17, debug-location !23
230 DBG_VALUE 0, 0, !13, !17, debug-location !25
231 TEST32rr $esi, $esi, implicit-def $eflags, debug-location !39
232 JCC_1 %bb.6.if.then.4, 15, implicit $eflags
235 successors: %bb.8.if.then.8(4), %bb.2.for.cond(124)
236 liveins: $eax, $ecx, $edi, $edx, $esi, $r8d
238 DBG_VALUE $edi, _, !9, !17, debug-location !18
239 DBG_VALUE $esi, _, !10, !17, debug-location !19
240 DBG_VALUE $edx, _, !11, !17, debug-location !21
241 DBG_VALUE $ecx, _, !12, !17, debug-location !23
242 DBG_VALUE 0, 0, !13, !17, debug-location !25
243 TEST32rr $edx, $edx, implicit-def $eflags, debug-location !45
244 JCC_1 %bb.8.if.then.8, 15, implicit $eflags
247 successors: %bb.3.for.body(124), %bb.9.for.end(4)
248 liveins: $eax, $ecx, $edi, $edx, $esi, $r8d
250 DBG_VALUE $edi, _, !9, !17, debug-location !18
251 DBG_VALUE $esi, _, !10, !17, debug-location !19
252 DBG_VALUE $edx, _, !11, !17, debug-location !21
253 DBG_VALUE $ecx, _, !12, !17, debug-location !23
254 DBG_VALUE 0, 0, !13, !17, debug-location !25
255 $eax = INC32r killed $eax, implicit-def dead $eflags, debug-location !44
256 DBG_VALUE $eax, _, !13, !17, debug-location !25
257 CMP32rr $eax, $r8d, implicit-def $eflags, debug-location !31
258 JCC_1 %bb.3.for.body, 12, implicit $eflags
264 DBG_VALUE $edi, _, !9, !17, debug-location !18
265 DBG_VALUE $ecx, _, !12, !17, debug-location !23
266 DBG_VALUE 0, 0, !13, !17, debug-location !25
267 $ecx = IMUL32rr killed $ecx, killed $edi, implicit-def dead $eflags, debug-location !36
268 DBG_VALUE 0, 0, !13, !17, debug-location !25
269 $eax = MOV32rr killed $ecx, debug-location !50
270 RETQ $eax, debug-location !50
275 DBG_VALUE $esi, _, !10, !17, debug-location !19
276 DBG_VALUE $ecx, _, !12, !17, debug-location !23
277 DBG_VALUE 0, 0, !13, !17, debug-location !25
278 $ecx = IMUL32rr killed $ecx, killed $esi, implicit-def dead $eflags, debug-location !40
279 DBG_VALUE 0, 0, !13, !17, debug-location !25
280 $eax = MOV32rr killed $ecx, debug-location !50
281 RETQ $eax, debug-location !50
284 successors: %bb.9.for.end(0)
287 DBG_VALUE $edx, _, !11, !17, debug-location !21
288 DBG_VALUE $ecx, _, !12, !17, debug-location !23
289 DBG_VALUE 0, 0, !13, !17, debug-location !25
290 $ecx = IMUL32rr killed $ecx, killed $edx, implicit-def dead $eflags, debug-location !46
295 DBG_VALUE 0, 0, !13, !17, debug-location !25
296 $eax = MOV32rr killed $ecx, debug-location !50
297 RETQ $eax, debug-location !50