diff --git a/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp b/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp --- a/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp +++ b/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp @@ -103,6 +103,8 @@ Descriptions[DW_OP_convert] = Desc(Op::Dwarf5, Op::BaseTypeRef); Descriptions[DW_OP_entry_value] = Desc(Op::Dwarf5, Op::SizeLEB); + Descriptions[DW_OP_regval_type] = + Desc(Op::Dwarf5, Op::SizeLEB, Op::BaseTypeRef); return Descriptions; } @@ -187,7 +189,21 @@ return true; } -static bool prettyPrintRegisterOp(raw_ostream &OS, uint8_t Opcode, +static void prettyPrintBaseTypeRef(DWARFUnit *U, raw_ostream &OS, + uint64_t Operands[2], unsigned Operand) { + assert(Operand < 2 && "operand out of bounds"); + auto Die = U->getDIEForOffset(U->getOffset() + Operands[Operand]); + if (Die && Die.getTag() == dwarf::DW_TAG_base_type) { + OS << format(" (0x%08" PRIx64 ")", U->getOffset() + Operands[Operand]); + if (auto Name = Die.find(dwarf::DW_AT_name)) + OS << " \"" << Name->getAsCString() << "\""; + } else { + OS << format(" ", + Operands[Operand]); + } +} + +static bool prettyPrintRegisterOp(DWARFUnit *U, raw_ostream &OS, uint8_t Opcode, uint64_t Operands[2], const MCRegisterInfo *MRI, bool isEH) { if (!MRI) @@ -196,7 +212,8 @@ uint64_t DwarfRegNum; unsigned OpNum = 0; - if (Opcode == DW_OP_bregx || Opcode == DW_OP_regx) + if (Opcode == DW_OP_bregx || Opcode == DW_OP_regx || + Opcode == DW_OP_regval_type) DwarfRegNum = Operands[OpNum++]; else if (Opcode >= DW_OP_breg0 && Opcode < DW_OP_bregx) DwarfRegNum = Opcode - DW_OP_breg0; @@ -210,6 +227,9 @@ OS << format(" %s%+" PRId64, RegName, Operands[OpNum]); else OS << ' ' << RegName; + + if (Opcode == DW_OP_regval_type) + prettyPrintBaseTypeRef(U, OS, Operands, 1); return true; } } @@ -233,8 +253,9 @@ if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) || (Opcode >= DW_OP_reg0 && Opcode <= DW_OP_reg31) || - Opcode == DW_OP_bregx || Opcode == DW_OP_regx) - if (prettyPrintRegisterOp(OS, Opcode, Operands, RegInfo, isEH)) + Opcode == DW_OP_bregx || Opcode == DW_OP_regx || + Opcode == DW_OP_regval_type) + if (prettyPrintRegisterOp(U, OS, Opcode, Operands, RegInfo, isEH)) return true; for (unsigned Operand = 0; Operand < 2; ++Operand) { @@ -245,15 +266,7 @@ break; if (Size == Operation::BaseTypeRef && U) { - auto Die = U->getDIEForOffset(U->getOffset() + Operands[Operand]); - if (Die && Die.getTag() == dwarf::DW_TAG_base_type) { - OS << format(" (0x%08" PRIx64 ")", U->getOffset() + Operands[Operand]); - if (auto Name = Die.find(dwarf::DW_AT_name)) - OS << " \"" << Name->getAsCString() << "\""; - } else { - OS << format(" ", - Operands[Operand]); - } + prettyPrintBaseTypeRef(U, OS, Operands, Operand); } else if (Size == Operation::SizeBlock) { uint64_t Offset = Operands[Operand]; for (unsigned i = 0; i < Operands[Operand - 1]; ++i) diff --git a/llvm/test/tools/llvm-dwarfdump/X86/dw_op_regval_type.s b/llvm/test/tools/llvm-dwarfdump/X86/dw_op_regval_type.s new file mode 100644 --- /dev/null +++ b/llvm/test/tools/llvm-dwarfdump/X86/dw_op_regval_type.s @@ -0,0 +1,185 @@ +# RUN: llvm-mc -dwarf-version=5 %s -filetype obj -triple x86_64-apple-darwin -o - \ +# RUN: | llvm-dwarfdump - | FileCheck %s + +# CHECK: DW_AT_location (DW_OP_regval_type RSI (0x0000003a) "int") + + .section __TEXT,__text,regular,pure_instructions + .globl _f ## -- Begin function f + .p2align 4, 0x90 +_f: ## @f +Lfunc_begin0: + .file 0 "/Volumes/Data/llvm-project" "/tmp/t.c" md5 0xe111397c9e6224481f168e197b7fac99 + .loc 0 1 0 ## /tmp/t.c:1:0 + .cfi_startproc +## %bb.0: + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp +Ltmp0: + .loc 0 2 7 prologue_end ## /tmp/t.c:2:7 + movl $23, -4(%rbp) + .loc 0 3 1 ## /tmp/t.c:3:1 + popq %rbp + retq +Ltmp1: +Lfunc_end0: + .cfi_endproc + ## -- End function + .section __DWARF,__debug_str_offs,regular,debug +Lsection_str_off: + .long 28 + .short 5 + .short 0 +Lstr_offsets_base0: + .section __DWARF,__debug_str,regular,debug +Linfo_string: + .asciz "clang " ## string offset=0 + .asciz "/tmp/t.c" ## string offset=48 + .asciz "/Volumes/Data/llvm-project" ## string offset=57 + .asciz "f" ## string offset=84 + .asciz "x" ## string offset=86 + .asciz "int" ## string offset=88 + .section __DWARF,__debug_str_offs,regular,debug + .long 0 + .long 48 + .long 57 + .long 84 + .long 86 + .long 88 + .section __DWARF,__debug_abbrev,regular,debug +Lsection_abbrev: + .byte 1 ## Abbreviation Code + .byte 17 ## DW_TAG_compile_unit + .byte 1 ## DW_CHILDREN_yes + .byte 37 ## DW_AT_producer + .byte 37 ## DW_FORM_strx1 + .byte 19 ## DW_AT_language + .byte 5 ## DW_FORM_data2 + .byte 3 ## DW_AT_name + .byte 37 ## DW_FORM_strx1 + .byte 114 ## DW_AT_str_offsets_base + .byte 23 ## DW_FORM_sec_offset + .byte 16 ## DW_AT_stmt_list + .byte 23 ## DW_FORM_sec_offset + .byte 27 ## DW_AT_comp_dir + .byte 37 ## DW_FORM_strx1 + .byte 17 ## DW_AT_low_pc + .byte 27 ## DW_FORM_addrx + .byte 18 ## DW_AT_high_pc + .byte 6 ## DW_FORM_data4 + .byte 115 ## DW_AT_addr_base + .byte 23 ## DW_FORM_sec_offset + .byte 0 ## EOM(1) + .byte 0 ## EOM(2) + .byte 2 ## Abbreviation Code + .byte 46 ## DW_TAG_subprogram + .byte 1 ## DW_CHILDREN_yes + .byte 17 ## DW_AT_low_pc + .byte 27 ## DW_FORM_addrx + .byte 18 ## DW_AT_high_pc + .byte 6 ## DW_FORM_data4 + .byte 64 ## DW_AT_frame_base + .byte 24 ## DW_FORM_exprloc + .byte 3 ## DW_AT_name + .byte 37 ## DW_FORM_strx1 + .byte 58 ## DW_AT_decl_file + .byte 11 ## DW_FORM_data1 + .byte 59 ## DW_AT_decl_line + .byte 11 ## DW_FORM_data1 + .byte 63 ## DW_AT_external + .byte 25 ## DW_FORM_flag_present + .byte 0 ## EOM(1) + .byte 0 ## EOM(2) + .byte 3 ## Abbreviation Code + .byte 52 ## DW_TAG_variable + .byte 0 ## DW_CHILDREN_no + .byte 2 ## DW_AT_location + .byte 24 ## DW_FORM_exprloc + .byte 3 ## DW_AT_name + .byte 37 ## DW_FORM_strx1 + .byte 58 ## DW_AT_decl_file + .byte 11 ## DW_FORM_data1 + .byte 73 ## DW_AT_type + .byte 19 ## DW_FORM_ref4 + .byte 0 ## EOM(1) + .byte 0 ## EOM(2) + .byte 4 ## Abbreviation Code + .byte 36 ## DW_TAG_base_type + .byte 0 ## DW_CHILDREN_no + .byte 3 ## DW_AT_name + .byte 37 ## DW_FORM_strx1 + .byte 62 ## DW_AT_encoding + .byte 11 ## DW_FORM_data1 + .byte 11 ## DW_AT_byte_size + .byte 11 ## DW_FORM_data1 + .byte 0 ## EOM(1) + .byte 0 ## EOM(2) + .byte 0 ## EOM(3) + .section __DWARF,__debug_info,regular,debug +Lsection_info: +Lcu_begin0: +.set Lset0, Ldebug_info_end0-Ldebug_info_start0 ## Length of Unit + .long Lset0 +Ldebug_info_start0: + .short 5 ## DWARF version number + .byte 1 ## DWARF Unit Type + .byte 8 ## Address Size (in bytes) +.set Lset1, Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section + .long Lset1 + .byte 1 ## Abbrev [1] 0xc:0x33 DW_TAG_compile_unit + .byte 0 ## DW_AT_producer + .short 12 ## DW_AT_language + .byte 1 ## DW_AT_name +.set Lset2, Lstr_offsets_base0-Lsection_str_off ## DW_AT_str_offsets_base + .long Lset2 +.set Lset3, Lline_table_start0-Lsection_line ## DW_AT_stmt_list + .long Lset3 + .byte 2 ## DW_AT_comp_dir + .byte 0 ## DW_AT_low_pc +.set Lset4, Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc + .long Lset4 +.set Lset5, Laddr_table_base0-Lsection_info0 ## DW_AT_addr_base + .long Lset5 + .byte 2 ## Abbrev [2] 0x23:0x17 DW_TAG_subprogram + .byte 0 ## DW_AT_low_pc +.set Lset6, Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc + .long Lset6 + .byte 1 ## DW_AT_frame_base + .byte 86 + .byte 3 ## DW_AT_name + .byte 0 ## DW_AT_decl_file + .byte 1 ## DW_AT_decl_line + ## DW_AT_external + .byte 3 ## Abbrev [3] 0x2e:0xb DW_TAG_variable + .byte 3 ## DW_AT_location + .byte 0xa5 + .byte 0x04 + .byte 0x3a + .byte 4 ## DW_AT_name + .byte 0 ## DW_AT_decl_file + .long 58 ## DW_AT_type + .byte 0 ## End Of Children Mark + .byte 4 ## Abbrev [4] 0x3a:0x4 DW_TAG_base_type + .byte 5 ## DW_AT_name + .byte 5 ## DW_AT_encoding + .byte 4 ## DW_AT_byte_size + .byte 0 ## End Of Children Mark +Ldebug_info_end0: + .section __DWARF,__debug_addr,regular,debug +Lsection_info0: +.set Lset7, Ldebug_addr_end0-Ldebug_addr_start0 ## Length of contribution + .long Lset7 +Ldebug_addr_start0: + .short 5 ## DWARF version number + .byte 8 ## Address size + .byte 0 ## Segment selector size +Laddr_table_base0: + .quad Lfunc_begin0 +Ldebug_addr_end0: + +.subsections_via_symbols + .section __DWARF,__debug_line,regular,debug +Lsection_line: +Lline_table_start0: