mirror of
https://github.com/c64scene-ar/llvm-6502.git
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22f8dcb2b5
It's probably not a huge deal to not do this - if we could, maybe the address could be reused by a subprogram low_pc and avoid an extra relocation, but it's just one per CU at best. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217338 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
4.2 KiB
LLVM
76 lines
4.2 KiB
LLVM
; RUN: llc -split-dwarf=Enable -O0 %s -function-sections -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=abbrev %t | FileCheck --check-prefix=FUNCTION-SECTIONS %s
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; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=FUNCTION-SECTIONS-RELOCS %s
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; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=abbrev %t | FileCheck --check-prefix=NO-FUNCTION-SECTIONS %s
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; From:
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; int foo (int a) {
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; return a+1;
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; }
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; int bar (int b) {
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; return b+2;
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; }
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; With function sections enabled make sure that we have a DW_AT_ranges attribute.
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; FUNCTION-SECTIONS: DW_AT_ranges
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; Check that we have a relocation against the .debug_ranges section.
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; FUNCTION-SECTIONS-RELOCS: R_X86_64_32 .debug_ranges 0x0
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; Without function sections enabled make sure that we have no DW_AT_ranges attribute.
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; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges
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; NO-FUNCTION-SECTIONS: DW_AT_low_pc DW_FORM_addr
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; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges
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; Function Attrs: nounwind uwtable
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define i32 @foo(i32 %a) #0 {
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entry:
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%a.addr = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !13), !dbg !14
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%0 = load i32* %a.addr, align 4, !dbg !14
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%add = add nsw i32 %0, 1, !dbg !14
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ret i32 %add, !dbg !14
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata) #1
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; Function Attrs: nounwind uwtable
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define i32 @bar(i32 %b) #0 {
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entry:
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%b.addr = alloca i32, align 4
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store i32 %b, i32* %b.addr, align 4
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call void @llvm.dbg.declare(metadata !{i32* %b.addr}, metadata !15), !dbg !16
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%0 = load i32* %b.addr, align 4, !dbg !16
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%add = add nsw i32 %0, 2, !dbg !16
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ret i32 %add, !dbg !16
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11}
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!llvm.ident = !{!12}
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!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/z.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"z.c", metadata !"/usr/local/google/home/echristo"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4, metadata !9}
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!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @foo, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
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!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/z.c]
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!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{metadata !8, metadata !8}
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!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!9 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"", i32 2, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @bar, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 2] [def] [bar]
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!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
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!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!12 = metadata !{metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
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!13 = metadata !{i32 786689, metadata !4, metadata !"a", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 1]
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!14 = metadata !{i32 1, i32 0, metadata !4, null}
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!15 = metadata !{i32 786689, metadata !9, metadata !"b", metadata !5, i32 16777218, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [b] [line 2]
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!16 = metadata !{i32 2, i32 0, metadata !9, null}
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