| # 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). |
| |
| # RUN: llc -emit-call-site-info -debug-entry-values -run-pass=livedebugvalues -o - %s | FileCheck %s |
| |
| # Verify that the entry values for the input parameters are inserted after the |
| # bundles which contains the registers' clobbering instructions (the calls to |
| # @clobber). Previously the insertions would thrash the bundles, later on |
| # triggering a crash in DebugHandlerBase. |
| |
| --- | |
| 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" |
| target triple = "hexagon" |
| |
| ; Function Attrs: nounwind |
| define i32 @foo(i32 %arg) !dbg !12 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %arg, metadata !16, metadata !DIExpression()), !dbg !17 |
| %call = tail call i32 @clobber(), !dbg !18 |
| ret i32 1, !dbg !19 |
| } |
| |
| declare !dbg !4 i32 @clobber() |
| |
| ; Function Attrs: nounwind |
| define i32 @bar(i32 %b) !dbg !20 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %b, metadata !22, metadata !DIExpression()), !dbg !23 |
| %tobool = icmp eq i32 %b, 0, !dbg !24 |
| br i1 %tobool, label %land.end, label %land.rhs, !dbg !24 |
| |
| land.rhs: ; preds = %entry |
| %call = tail call i32 @clobber(), !dbg !25 |
| br label %land.end |
| |
| land.end: ; preds = %entry, %land.rhs |
| ret i32 undef, !dbg !27 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #0 |
| |
| attributes #0 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !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) |
| !1 = !DIFile(filename: "foo.c", directory: "/") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "clobber", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{!7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !{i32 2, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{!"clang version 10.0.0"} |
| !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) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!7, !7} |
| !15 = !{!16} |
| !16 = !DILocalVariable(name: "arg", arg: 1, scope: !12, file: !1, line: 3, type: !7) |
| !17 = !DILocation(line: 0, scope: !12) |
| !18 = !DILocation(line: 4, scope: !12) |
| !19 = !DILocation(line: 5, scope: !12) |
| !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) |
| !21 = !{!22} |
| !22 = !DILocalVariable(name: "arg", arg: 1, scope: !20, file: !1, line: 8, type: !7) |
| !23 = !DILocation(line: 0, scope: !20) |
| !24 = !DILocation(line: 9, scope: !20) |
| !25 = !DILocation(line: 9, scope: !26) |
| !26 = distinct !DILexicalBlock(scope: !20, file: !1, line: 9) |
| !27 = !DILocation(line: 10, scope: !20) |
| |
| ... |
| --- |
| name: foo |
| tracksRegLiveness: true |
| body: | |
| bb.0.entry: |
| DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !17 |
| CFI_INSTRUCTION def_cfa $r30, 8 |
| CFI_INSTRUCTION offset $r31, -4 |
| CFI_INSTRUCTION offset $r30, -8 |
| 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 { |
| $r29 = S2_allocframe $r29, 0, implicit-def $r30, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !18 :: (store 4 into stack) |
| 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 |
| } |
| 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 { |
| $r0 = A2_tfrsi 1, debug-location !19 |
| $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 |
| } |
| |
| ... |
| |
| # CHECK-LABEL: name: foo |
| # CHECK: BUNDLE |
| # CHECK-NEXT: $r29 = S2_allocframe $r29, 0 |
| # CHECK-NEXT: J2_call @clobber |
| # CHECK-NEXT: } |
| # CHECK-NEXT: DBG_VALUE $r0, $noreg, !16, !DIExpression(DW_OP_LLVM_entry_value, 1) |
| |
| --- |
| name: bar |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$r0' } |
| body: | |
| bb.0.entry: |
| successors: %bb.1 |
| liveins: $r0 |
| |
| DBG_VALUE $r0, $noreg, !22, !DIExpression(), debug-location !23 |
| DBG_VALUE $r0, $noreg, !22, !DIExpression(), debug-location !23 |
| BUNDLE implicit-def dead $p0, implicit-def $pc, implicit killed $r0, implicit killed $r31, debug-location !24 { |
| renamable $p0 = C2_cmpeqi killed renamable $r0, 0, debug-location !24 |
| PS_jmprettnew internal killed $p0, killed $r31, implicit-def $pc, implicit-def $pc, implicit killed undef $r0, debug-location !27 |
| } |
| |
| bb.1.land.rhs: |
| CFI_INSTRUCTION def_cfa $r30, 8 |
| CFI_INSTRUCTION offset $r31, -4 |
| CFI_INSTRUCTION offset $r30, -8 |
| 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 { |
| $r29 = S2_allocframe $r29, 0, implicit-def $r30, implicit killed $framekey, implicit killed $framelimit, implicit killed $r30, implicit killed $r31, debug-location !25 :: (store 4 into stack) |
| J2_call @clobber, hexagoncsr, implicit-def $pc, implicit-def $r31, implicit internal killed $r29, implicit-def $r29, implicit-def dead $r0, debug-location !25 |
| } |
| $d15 = L2_deallocframe killed $r30, implicit-def $r29, implicit killed $framekey |
| PS_jmpret killed $r31, implicit-def $pc, implicit killed undef $r0, debug-location !27 |
| |
| ... |
| |
| # CHECK-LABEL: name: bar |
| # CHECK: BUNDLE |
| # CHECK: BUNDLE |
| # CHECK-NEXT: $r29 = S2_allocframe $r29, 0 |
| # CHECK-NEXT: J2_call @clobber |
| # CHECK-NEXT: } |
| # CHECK-NEXT: DBG_VALUE $r0, $noreg, !22, !DIExpression(DW_OP_LLVM_entry_value, 1) |
