1 # We do not support the call site info for the target now, so we use the experimental option (-emit-call-site-info -debug-entry-values).
3 # RUN: llc -emit-call-site-info -debug-entry-values -run-pass=livedebugvalues -o - %s | FileCheck %s
4 # RUN: llc -emit-call-site-info -debug-entry-values -force-instr-ref-livedebugvalues=1 -run-pass=livedebugvalues -o - %s | FileCheck %s
6 # Verify that the entry values for the input parameters are inserted after the
7 # bundles which contains the registers' clobbering instructions (the calls to
8 # @clobber). Previously the insertions would thrash the bundles, later on
9 # triggering a crash in DebugHandlerBase.
12 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"
13 target triple = "hexagon"
15 ; Function Attrs: nounwind
16 define i32 @foo(i32 %arg) !dbg !12 {
18 call void @llvm.dbg.value(metadata i32 %arg, metadata !16, metadata !DIExpression()), !dbg !17
19 %call = tail call i32 @clobber(), !dbg !18
23 declare !dbg !4 i32 @clobber()
25 ; Function Attrs: nounwind
26 define i32 @bar(i32 %b) !dbg !20 {
28 call void @llvm.dbg.value(metadata i32 %b, metadata !22, metadata !DIExpression()), !dbg !23
29 %tobool = icmp eq i32 %b, 0, !dbg !24
30 br i1 %tobool, label %land.end, label %land.rhs, !dbg !24
32 land.rhs: ; preds = %entry
33 %call = tail call i32 @clobber(), !dbg !25
36 land.end: ; preds = %entry, %land.rhs
37 ret i32 undef, !dbg !27
40 ; Function Attrs: nounwind readnone speculatable
41 declare void @llvm.dbg.value(metadata, metadata, metadata) #0
43 attributes #0 = { nounwind readnone speculatable }
46 !llvm.module.flags = !{!8, !9, !10}
49 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
50 !1 = !DIFile(filename: "foo.c", directory: "/")
53 !4 = !DISubprogram(name: "clobber", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
54 !5 = !DISubroutineType(types: !6)
56 !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
57 !8 = !{i32 2, !"Dwarf Version", i32 4}
58 !9 = !{i32 2, !"Debug Info Version", i32 3}
59 !10 = !{i32 1, !"wchar_size", i32 4}
60 !11 = !{!"clang version 10.0.0"}
61 !12 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !13, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
62 !13 = !DISubroutineType(types: !14)
65 !16 = !DILocalVariable(name: "arg", arg: 1, scope: !12, file: !1, line: 3, type: !7)
66 !17 = !DILocation(line: 0, scope: !12)
67 !18 = !DILocation(line: 4, scope: !12)
68 !19 = !DILocation(line: 5, scope: !12)
69 !20 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 8, type: !13, scopeLine: 8, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !21)
71 !22 = !DILocalVariable(name: "arg", arg: 1, scope: !20, file: !1, line: 8, type: !7)
72 !23 = !DILocation(line: 0, scope: !20)
73 !24 = !DILocation(line: 9, scope: !20)
74 !25 = !DILocation(line: 9, scope: !26)
75 !26 = distinct !DILexicalBlock(scope: !20, file: !1, line: 9)
76 !27 = !DILocation(line: 10, scope: !20)
81 tracksRegLiveness: true
84 DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !17
85 CFI_INSTRUCTION def_cfa $r30, 8
86 CFI_INSTRUCTION offset $r31, -4
87 CFI_INSTRUCTION offset $r30, -8
88 BUNDLE implicit-def $r29, implicit-def $r30, implicit-def dead $pc, implicit-def dead $r31, implicit-def dead $r0, implicit $r29, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !18 {
89 $r29 = S2_allocframe $r29, 0, implicit-def $r30, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !18 :: (store (s32) into stack)
90 J2_call @clobber, hexagoncsr, implicit-def dead $pc, implicit-def dead $r31, implicit internal killed $r29, implicit-def $r29, implicit-def dead $r0, debug-location !18
92 BUNDLE implicit-def dead $r0, implicit-def $d15, implicit-def $r30, implicit-def $r31, implicit-def $pc, implicit-def $r29, implicit killed $r30, implicit killed $framekey, debug-location !19 {
93 $r0 = A2_tfrsi 1, debug-location !19
94 $d15 = L4_return killed $r30, implicit-def $pc, implicit-def $r29, implicit killed $framekey, implicit-def dead $pc, implicit internal killed $r0, debug-location !19
99 # CHECK-LABEL: name: foo
101 # CHECK-NEXT: $r29 = S2_allocframe $r29, 0
102 # CHECK-NEXT: J2_call @clobber
104 # CHECK-NEXT: DBG_VALUE $r0, $noreg, !16, !DIExpression(DW_OP_LLVM_entry_value, 1)
108 tracksRegLiveness: true
116 DBG_VALUE $r0, $noreg, !22, !DIExpression(), debug-location !23
117 BUNDLE implicit-def dead $p0, implicit-def $pc, implicit killed $r0, implicit killed $r31, debug-location !24 {
118 renamable $p0 = C2_cmpeqi killed renamable $r0, 0, debug-location !24
119 PS_jmprettnew internal killed $p0, killed $r31, implicit-def $pc, implicit-def $pc, implicit killed undef $r0, debug-location !27
123 CFI_INSTRUCTION def_cfa $r30, 8
124 CFI_INSTRUCTION offset $r31, -4
125 CFI_INSTRUCTION offset $r30, -8
126 BUNDLE implicit-def $r29, implicit-def $r30, implicit-def $pc, implicit-def $r31, implicit-def dead $r0, implicit $r29, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !25 {
127 $r29 = S2_allocframe $r29, 0, implicit-def $r30, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !25 :: (store (s32) into stack)
128 J2_call @clobber, hexagoncsr, implicit-def $pc, implicit-def $r31, implicit internal killed $r29, implicit-def $r29, implicit-def dead $r0, debug-location !25
130 $d15 = L2_deallocframe killed $r30, implicit-def $r29, implicit killed $framekey
131 PS_jmpret killed $r31, implicit-def $pc, implicit killed undef $r0, debug-location !27
135 # CHECK-LABEL: name: bar
138 # CHECK-NEXT: $r29 = S2_allocframe $r29, 0
139 # CHECK-NEXT: J2_call @clobber
141 # CHECK-NEXT: DBG_VALUE $r0, $noreg, !22, !DIExpression(DW_OP_LLVM_entry_value, 1)