diff options
Diffstat (limited to 'llvm/test/DebugInfo')
7 files changed, 181 insertions, 11 deletions
diff --git a/llvm/test/DebugInfo/ARM/entry-value-multi-byte-expr.ll b/llvm/test/DebugInfo/ARM/entry-value-multi-byte-expr.ll new file mode 100644 index 00000000000..6c482754cda --- /dev/null +++ b/llvm/test/DebugInfo/ARM/entry-value-multi-byte-expr.ll @@ -0,0 +1,91 @@ +; RUN: llc -debug-entry-values -filetype=asm -o - %s | FileCheck %s + +; Verify that the size operands of the DW_OP_GNU_entry_value operations are +; correct for the multi-byte DW_OP_regx expressions. + +; Based on the following C reproducer: +; +; extern void clobber(); +; double global; +; int f(double a, double b) { +; global = a + b; +; clobber(); +; return 1; +; } + +; This test checks the assembly output rather than the output from +; llvm-dwarfdump, as the latter printed the DW_OP_regx D0 correctly, even +; though the entry value's size operand did not fully cover that: + +; DW_OP_GNU_entry_value(DW_OP_regx D0), DW_OP_stack_value +; +; whereas readelf interpreted it as an DW_OP_GNU_entry_value covering one byte, +; resulting in garbage data: +; +; DW_OP_GNU_entry_value: (DW_OP_regx: 0 (r0)); DW_OP_breg16 (r16): 2; DW_OP_stack_value + +; CHECK: .byte 243 @ DW_OP_GNU_entry_value +; CHECK-NEXT: .byte 3 @ 3 +; CHECK-NEXT: .byte 144 @ DW_OP_regx +; CHECK-NEXT: .byte 128 @ 256 +; CHECK-NEXT: .byte 2 @ +; CHECK-NEXT: .byte 159 @ DW_OP_stack_value + +; CHECK: .byte 243 @ DW_OP_GNU_entry_value +; CHECK-NEXT: .byte 3 @ 3 +; CHECK-NEXT: .byte 144 @ DW_OP_regx +; CHECK-NEXT: .byte 129 @ 257 +; CHECK-NEXT: .byte 2 @ +; CHECK-NEXT: .byte 159 @ DW_OP_stack_value + +target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" +target triple = "armv7-unknown-unknown" + +@global = common global double 0.000000e+00, align 8, !dbg !0 + +; Function Attrs: nounwind +define arm_aapcs_vfpcc i32 @f(double %a, double %b) #0 !dbg !12 { +entry: + call void @llvm.dbg.value(metadata double %a, metadata !17, metadata !DIExpression()), !dbg !19 + call void @llvm.dbg.value(metadata double %b, metadata !18, metadata !DIExpression()), !dbg !19 + %add = fadd double %a, %b, !dbg !20 + store double %add, double* @global, align 8, !dbg !20 + tail call arm_aapcs_vfpcc void @clobber(), !dbg !21 + ret i32 1, !dbg !22 +} + +declare arm_aapcs_vfpcc void @clobber() + +; Function Attrs: nounwind readnone speculatable willreturn +declare void @llvm.dbg.value(metadata, metadata, metadata) #1 + +attributes #0 = { nounwind } +attributes #1 = { nounwind readnone speculatable willreturn } + +!llvm.dbg.cu = !{!2} +!llvm.module.flags = !{!7, !8, !9, !10} +!llvm.ident = !{!11} + +!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) +!1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 4, type: !6, isLocal: false, isDefinition: true) +!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None) +!3 = !DIFile(filename: "entry-value-multi-byte-expr.c", directory: "/") +!4 = !{} +!5 = !{!0} +!6 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float) +!7 = !{i32 2, !"Dwarf Version", i32 4} +!8 = !{i32 2, !"Debug Info Version", i32 3} +!9 = !{i32 1, !"wchar_size", i32 4} +!10 = !{i32 1, !"min_enum_size", i32 4} +!11 = !{!"clang version 10.0.0"} +!12 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16) +!13 = !DISubroutineType(types: !14) +!14 = !{!15, !6, !6} +!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!16 = !{!17, !18} +!17 = !DILocalVariable(name: "a", arg: 1, scope: !12, file: !3, line: 6, type: !6, flags: DIFlagArgumentNotModified) +!18 = !DILocalVariable(name: "b", arg: 2, scope: !12, file: !3, line: 6, type: !6, flags: DIFlagArgumentNotModified) +!19 = !DILocation(line: 0, scope: !12) +!20 = !DILocation(line: 7, scope: !12) +!21 = !DILocation(line: 8, scope: !12) +!22 = !DILocation(line: 9, scope: !12) diff --git a/llvm/test/DebugInfo/MIR/Hexagon/live-debug-values-bundled-entry-values.mir b/llvm/test/DebugInfo/MIR/Hexagon/live-debug-values-bundled-entry-values.mir index b7881b42e29..2db3b22cdd9 100644 --- a/llvm/test/DebugInfo/MIR/Hexagon/live-debug-values-bundled-entry-values.mir +++ b/llvm/test/DebugInfo/MIR/Hexagon/live-debug-values-bundled-entry-values.mir @@ -98,7 +98,7 @@ body: | # CHECK-NEXT: $r29 = S2_allocframe $r29, 0 # CHECK-NEXT: J2_call @clobber # CHECK-NEXT: } -# CHECK-NEXT: DBG_VALUE $r0, $noreg, !16, !DIExpression(DW_OP_entry_value, 1) +# CHECK-NEXT: DBG_VALUE $r0, $noreg, !16, !DIExpression(DW_OP_LLVM_entry_value, 1) --- name: bar @@ -136,4 +136,4 @@ body: | # CHECK-NEXT: $r29 = S2_allocframe $r29, 0 # CHECK-NEXT: J2_call @clobber # CHECK-NEXT: } -# CHECK-NEXT: DBG_VALUE $r0, $noreg, !22, !DIExpression(DW_OP_entry_value, 1) +# CHECK-NEXT: DBG_VALUE $r0, $noreg, !22, !DIExpression(DW_OP_LLVM_entry_value, 1) diff --git a/llvm/test/DebugInfo/MIR/X86/avoid-single-entry-value-location.mir b/llvm/test/DebugInfo/MIR/X86/avoid-single-entry-value-location.mir index 075d356c6bd..845fafd99ec 100644 --- a/llvm/test/DebugInfo/MIR/X86/avoid-single-entry-value-location.mir +++ b/llvm/test/DebugInfo/MIR/X86/avoid-single-entry-value-location.mir @@ -61,7 +61,7 @@ body: | DBG_VALUE $edi, $noreg, !16, !DIExpression(), debug-location !18 DBG_VALUE $edi, $noreg, !17, !DIExpression(), debug-location !18 $edi = KILL renamable $edi, implicit killed $rdi, debug-location !18 - DBG_VALUE $rdi, $noreg, !16, !DIExpression(DW_OP_entry_value, 1), debug-location !18 + DBG_VALUE $rdi, $noreg, !16, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !18 TAILJMPd64 @fn2, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $edi, debug-location !18 ... diff --git a/llvm/test/DebugInfo/MIR/X86/dbgcall-site-interpretation.mir b/llvm/test/DebugInfo/MIR/X86/dbgcall-site-interpretation.mir index f4857ccd7e8..2cadef6e425 100644 --- a/llvm/test/DebugInfo/MIR/X86/dbgcall-site-interpretation.mir +++ b/llvm/test/DebugInfo/MIR/X86/dbgcall-site-interpretation.mir @@ -190,10 +190,10 @@ body: | $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !21 CFI_INSTRUCTION def_cfa_offset 24, debug-location !21 $r14 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !21 - DBG_VALUE $ecx, $noreg, !17, !DIExpression(DW_OP_entry_value, 1), debug-location !21 + DBG_VALUE $ecx, $noreg, !17, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !21 CFI_INSTRUCTION def_cfa_offset 16, debug-location !21 $r15 = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !21 - DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_entry_value, 1), debug-location !21 + DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location !21 CFI_INSTRUCTION def_cfa_offset 8, debug-location !21 RETQ $eax, debug-location !21 diff --git a/llvm/test/DebugInfo/MIR/X86/dbginfo-entryvals.mir b/llvm/test/DebugInfo/MIR/X86/dbginfo-entryvals.mir index 445a2065941..dc49d058add 100644 --- a/llvm/test/DebugInfo/MIR/X86/dbginfo-entryvals.mir +++ b/llvm/test/DebugInfo/MIR/X86/dbginfo-entryvals.mir @@ -14,8 +14,8 @@ # fn2 (a); # u --; #} -# CHECK: DBG_VALUE $edi, $noreg, !14, !DIExpression(DW_OP_entry_value, 1), debug-location {{.*}} -# CHECK: DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_entry_value, 1), debug-location {{.*}} +# CHECK: DBG_VALUE $edi, $noreg, !14, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}} +# CHECK: DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}} --- | ; ModuleID = 'test.c' diff --git a/llvm/test/DebugInfo/MIR/X86/multiple-param-dbg-value-entry.mir b/llvm/test/DebugInfo/MIR/X86/multiple-param-dbg-value-entry.mir index c885460239a..54307c2fe2d 100644 --- a/llvm/test/DebugInfo/MIR/X86/multiple-param-dbg-value-entry.mir +++ b/llvm/test/DebugInfo/MIR/X86/multiple-param-dbg-value-entry.mir @@ -7,11 +7,11 @@ # return 123; #} # -# Verify that DW_OP_entry_values are generated for parameters with multiple +# Verify that DW_OP_LLVM_entry_values are generated for parameters with multiple # DBG_VALUEs at entry block. -# CHECK: DBG_VALUE $edi, $noreg, !{{.*}}, !DIExpression(DW_OP_entry_value, 1), debug-location {{.*}} -# CHECK: DBG_VALUE $edx, $noreg, !{{.*}}, !DIExpression(DW_OP_entry_value, 1), debug-location {{.*}} -# CHECK: DBG_VALUE $esi, $noreg, !{{.*}}, !DIExpression(DW_OP_entry_value, 1), debug-location {{.*}} +# CHECK: DBG_VALUE $edi, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}} +# CHECK: DBG_VALUE $edx, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}} +# CHECK: DBG_VALUE $esi, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}} --- | ; ModuleID = 'multiple-param-dbg-value-entry.ll' diff --git a/llvm/test/DebugInfo/Sparc/entry-value-complex-reg-expr.ll b/llvm/test/DebugInfo/Sparc/entry-value-complex-reg-expr.ll new file mode 100644 index 00000000000..07a3e9da1dd --- /dev/null +++ b/llvm/test/DebugInfo/Sparc/entry-value-complex-reg-expr.ll @@ -0,0 +1,79 @@ +; RUN: llc -debug-entry-values -filetype=asm -o - %s | FileCheck %s + +; Verify that the entry value covers both of the DW_OP_regx pieces. Previously +; the size operand of the entry value would be hardcoded to one. +; +; XXX: Is this really what should be emitted, or should we instead emit one +; entry value operation per DW_OP_regx? GDB can currently not understand +; entry values containing complex expressions like this. + +target datalayout = "E-m:e-i64:64-n32:64-S128" +target triple = "sparc64" + +; Based on the following C reproducer: +; +; volatile long double global; +; extern void clobber(); +; int foo(long double p) { +; global = p; +; clobber(); +; return 123; +; } + +; CHECK: .byte 243 ! DW_OP_GNU_entry_value +; CHECK-NEXT: .byte 8 ! 8 +; CHECK-NEXT: .byte 144 ! sub-register DW_OP_regx +; CHECK-NEXT: .byte 72 ! 72 +; CHECK-NEXT: .byte 147 ! DW_OP_piece +; CHECK-NEXT: .byte 8 ! 8 +; CHECK-NEXT: .byte 144 ! sub-register DW_OP_regx +; CHECK-NEXT: .byte 73 ! 73 +; CHECK-NEXT: .byte 147 ! DW_OP_piece +; CHECK-NEXT: .byte 8 ! 8 +; CHECK-NEXT: .byte 159 ! DW_OP_stack_value + +@global = common global fp128 0xL00000000000000000000000000000000, align 16, !dbg !0 + +; Function Attrs: nounwind +define signext i32 @foo(fp128 %p) #0 !dbg !12 { +entry: + call void @llvm.dbg.value(metadata fp128 %p, metadata !17, metadata !DIExpression()), !dbg !18 + store volatile fp128 %p, fp128* @global, align 16, !dbg !19 + tail call void @clobber(), !dbg !20 + ret i32 123, !dbg !21 +} + +declare void @clobber() + +; Function Attrs: nounwind readnone speculatable willreturn +declare void @llvm.dbg.value(metadata, metadata, metadata) #1 + +attributes #0 = { nounwind } +attributes #1 = { nounwind readnone speculatable willreturn } + +!llvm.dbg.cu = !{!2} +!llvm.module.flags = !{!8, !9, !10} +!llvm.ident = !{!11} + +!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) +!1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) +!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None) +!3 = !DIFile(filename: "entry-value-complex-reg-expr.c", directory: "/") +!4 = !{} +!5 = !{!0} +!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) +!7 = !DIBasicType(name: "long double", size: 128, encoding: DW_ATE_float) +!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: !3, file: !3, line: 3, type: !13, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16) +!13 = !DISubroutineType(types: !14) +!14 = !{!15, !7} +!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!16 = !{!17} +!17 = !DILocalVariable(name: "p", arg: 1, scope: !12, file: !3, line: 3, type: !7, flags: DIFlagArgumentNotModified) +!18 = !DILocation(line: 0, scope: !12) +!19 = !DILocation(line: 4, scope: !12) +!20 = !DILocation(line: 5, scope: !12) +!21 = !DILocation(line: 6, scope: !12) |
