281df9e647
LoongArch #77728 did better than RISCV. If the label difference can be resolved (there is no linker-relaxable fragment in between), we should use the default handling, which utilizes a shorter special opcode.
140 lines
6.9 KiB
LLVM
140 lines
6.9 KiB
LLVM
; RUN: llc -filetype=obj -mtriple=riscv32 -mattr=+relax %s -o %t.o
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; RUN: llvm-readobj -r %t.o | FileCheck -check-prefix=RELOC %s
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; RUN: llvm-objdump --source %t.o | FileCheck --check-prefix=OBJDUMP-SOURCE %s
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; RUN: llvm-dwarfdump --debug-info -debug-line -v %t.o | \
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; RUN: FileCheck -check-prefix=DWARF %s
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; RELOC: .rela.debug_info {
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; RELOC-NEXT: 0x8 R_RISCV_32 .debug_abbrev 0x0
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; RELOC-NEXT: 0x11 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x15 R_RISCV_32 .Lline_table_start0 0x0
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; RELOC-NEXT: 0x1B R_RISCV_ADD32 .L0 0x0
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; RELOC-NEXT: 0x1B R_RISCV_SUB32 .L0 0x0
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; RELOC-NEXT: 0x1F R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x25 R_RISCV_ADD32 .L0 0x0
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; RELOC-NEXT: 0x25 R_RISCV_SUB32 .L0 0x0
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; RELOC-NEXT: }
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; RELOC-NEXT: .rela.debug_str_offsets {
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; RELOC-NEXT: 0x8 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0xC R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x10 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x14 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x18 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: }
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; RELOC-NEXT: .rela.debug_addr {
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; RELOC-NEXT: 0x8 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: }
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; RELOC-NEXT: .rela.debug_frame {
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; RELOC-NEXT: 0x18 R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x1C R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x20 R_RISCV_ADD32 .L0 0x0
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; RELOC-NEXT: 0x20 R_RISCV_SUB32 .L0 0x0
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; RELOC-NEXT: 0x33 R_RISCV_SET6 .L0 0x0
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; RELOC-NEXT: 0x33 R_RISCV_SUB6 .L0 0x0
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; RELOC-NEXT: }
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; RELOC-NEXT: .rela.debug_line {
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; RELOC-NEXT: 0x22 R_RISCV_32 .debug_line_str 0x0
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; RELOC-NEXT: 0x31 R_RISCV_32 .debug_line_str 0x2
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; RELOC-NEXT: 0x46 R_RISCV_32 .debug_line_str 0x17
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; RELOC-NEXT: 0x4F R_RISCV_32 .L0 0x0
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; RELOC-NEXT: 0x5B R_RISCV_ADD16 .L0 0x0
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; RELOC-NEXT: 0x5B R_RISCV_SUB16 .L0 0x0
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; RELOC-NEXT: }
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; Check that we can print the source, even with relocations.
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; OBJDUMP-SOURCE: Disassembly of section .text:
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; OBJDUMP-SOURCE-EMPTY:
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; OBJDUMP-SOURCE-NEXT: 00000000 <main>:
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; OBJDUMP-SOURCE: ; {
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; OBJDUMP-SOURCE: ; return 0;
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; DWARF: .debug_line contents:
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; DWARF-NEXT: debug_line[0x00000000]
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; DWARF-NEXT: Line table prologue:
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; DWARF-NEXT: total_length: 0x00000062
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; DWARF-NEXT: format: DWARF32
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; DWARF-NEXT: version: 5
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; DWARF-NEXT: address_size: 4
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; DWARF-NEXT: seg_select_size: 0
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; DWARF-NEXT: prologue_length: 0x0000003e
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; DWARF-NEXT: min_inst_length: 1
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; DWARF-NEXT: max_ops_per_inst: 1
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; DWARF-NEXT: default_is_stmt: 1
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; DWARF-NEXT: line_base: -5
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; DWARF-NEXT: line_range: 14
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; DWARF-NEXT: opcode_base: 13
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_copy] = 0
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_advance_pc] = 1
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_advance_line] = 1
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_set_file] = 1
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_set_column] = 1
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_negate_stmt] = 0
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_set_basic_block] = 0
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_const_add_pc] = 0
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
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; DWARF-NEXT: standard_opcode_lengths[DW_LNS_set_isa] = 1
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; DWARF-NEXT: include_directories[ 0] = .debug_line_str[0x00000000] = "."
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; DWARF-NEXT: file_names[ 0]:
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; DWARF-NEXT: name: .debug_line_str[0x00000002] = "dwarf-riscv-relocs.c"
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; DWARF-NEXT: dir_index: 0
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; DWARF-NEXT: md5_checksum: 05ab89f5481bc9f2d037e7886641e919
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; DWARF-NEXT: source: .debug_line_str[0x00000017] = "int main()\n{\n return 0;\n}\n"
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; DWARF-EMPTY:
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; DWARF-NEXT: Address Line Column File ISA Discriminator OpIndex Flags
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; DWARF-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
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; DWARF-NEXT:0x0000004a: 04 DW_LNS_set_file (0)
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; DWARF-NEXT:0x0000004c: 00 DW_LNE_set_address (0x00000000)
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; DWARF-NEXT:0x00000053: 13 address += 0, line += 1, op-index += 0
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; DWARF-NEXT: 0x0000000000000000 2 0 0 0 0 0 is_stmt
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; DWARF-NEXT:0x00000054: 05 DW_LNS_set_column (5)
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; DWARF-NEXT:0x00000056: 0a DW_LNS_set_prologue_end
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; DWARF-NEXT:0x00000057: f3 address += 16, line += 1, op-index += 0
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; DWARF-NEXT: 0x0000000000000010 3 5 0 0 0 0 is_stmt prologue_end
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; DWARF-NEXT:0x00000058: 03 DW_LNS_advance_line (4)
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; DWARF-NEXT:0x0000005a: 09 DW_LNS_fixed_advance_pc (addr += 0x0010, op-index = 0)
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; DWARF-NEXT:0x0000005d: 01 DW_LNS_copy
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; DWARF-NEXT: 0x0000000000000020 4 5 0 0 0 0 is_stmt
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; DWARF-NEXT:0x0000005e: 06 DW_LNS_negate_stmt
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; DWARF-NEXT:0x0000005f: 0b DW_LNS_set_epilogue_begin
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; DWARF-NEXT:0x00000060: 4a address += 4, line += 0, op-index += 0
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; DWARF-NEXT: 0x0000000000000024 4 5 0 0 0 0 epilogue_begin
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; DWARF-NEXT:0x00000061: 02 DW_LNS_advance_pc (addr += 16, op-index += 0)
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; DWARF-NEXT:0x00000063: 00 DW_LNE_end_sequence
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; DWARF-NEXT: 0x0000000000000034 4 5 0 0 0 0 end_sequence
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; ModuleID = 'dwarf-riscv-relocs.c'
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source_filename = "dwarf-riscv-relocs.c"
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target datalayout = "e-m:e-p:32:32-i64:64-n32-S128"
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target triple = "riscv32"
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; Function Attrs: noinline nounwind optnone
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define dso_local i32 @main() #0 !dbg !7 {
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entry:
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call void asm sideeffect ".cfi_remember_state\0A\09.cfi_adjust_cfa_offset 16\0A\09nop\0A\09call ext\0A\09nop\0A\09.cfi_restore_state\0A\09", ""() #1, !dbg !11
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ret i32 0, !dbg !12
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}
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declare void @ext()
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attributes #0 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-features"="+relax" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "dwarf-riscv-relocs.c", directory: ".", checksumkind: CSK_MD5, checksum: "05ab89f5481bc9f2d037e7886641e919", source: "int main()\0A{\0A return 0;\0A}\0A")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 5}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang"}
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!7 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 1, type: !8, scopeLine: 2, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DILocation(line: 3, column: 5, scope: !7)
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!12 = !DILocation(line: 4, column: 5, scope: !7)
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