[PATCH] D21654: ELF/AMDGPU: Add support for R_AMDGPU_ABS32

[Rafael Espíndola via llvm-commits]

we don't use llc to test elf lld.

On 7 July 2016 at 17:34, Konstantin Zhuravlyov <kzhuravl_dev at outlook.com> wrote:
> kzhuravl updated this revision to Diff 63139.
> kzhuravl added a comment.
>
> Rebase and update test
>
>
> http://reviews.llvm.org/D21654
>
> Files:
>   ELF/Target.cpp
>   test/ELF/amdgpu-elf64-dwarf-relocs.ll
>
> Index: test/ELF/amdgpu-elf64-dwarf-relocs.ll
> ===================================================================
> --- test/ELF/amdgpu-elf64-dwarf-relocs.ll
> +++ test/ELF/amdgpu-elf64-dwarf-relocs.ll
> @@ -0,0 +1,34 @@
> +; REQUIRES: amdgpu
> +
> +; RUN: llc -filetype=obj -mtriple=amdgcn--amdhsa -mcpu=fiji %s -o %t.o
> +; RUN: ld.lld -shared %t.o -o %t.so
> +; RUN: llvm-dwarfdump -debug-dump=info %t.so | FileCheck %s
> +
> +; CHECK: DW_AT_producer [DW_FORM_strp]   ( .debug_str[0x00000000] = "clang version 3.9.0 (trunk 274777)")
> +; CHECK: DW_AT_name [DW_FORM_strp]       ( .debug_str[0x00000023] = "elf64-dwarf-relocs.cl")
> +; CHECK: DW_AT_comp_dir [DW_FORM_strp]   ( .debug_str[0x00000039] = "/home/kzhuravl/Git/Lightning/temp")
> +; CHECK: DW_AT_name [DW_FORM_strp]       ( .debug_str[0x0000005b] = "elf64_dwarf_relocs")
> +; CHECK: DW_AT_decl_file [DW_FORM_data1] ("/home/kzhuravl/Git/Lightning/temp/elf64-dwarf-relocs.cl")
> +
> +; Function Attrs: norecurse nounwind readnone
> +define amdgpu_kernel void @elf64_dwarf_relocs() local_unnamed_addr #0 !dbg !6 !kernel_arg_addr_space !2 !kernel_arg_access_qual !2 !kernel_arg_type !2 !kernel_arg_base_type !2 !kernel_arg_type_qual !2 {
> +entry:
> +  ret void, !dbg !9
> +}
> +
> +attributes #0 = { norecurse nounwind readnone "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="fiji" "target-features"="+16-bit-insts,+s-memrealtime" "unsafe-fp-math"="false" "use-soft-float"="false" }
> +
> +!llvm.dbg.cu = !{!0}
> +!llvm.module.flags = !{!3, !4}
> +!llvm.ident = !{!5}
> +
> +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 274777)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
> +!1 = !DIFile(filename: "elf64-dwarf-relocs.cl", directory: "/home/kzhuravl/Git/Lightning/temp")
> +!2 = !{}
> +!3 = !{i32 2, !"Dwarf Version", i32 2}
> +!4 = !{i32 2, !"Debug Info Version", i32 3}
> +!5 = !{!"clang version 3.9.0 (trunk 274777)"}
> +!6 = distinct !DISubprogram(name: "elf64_dwarf_relocs", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, variables: !2)
> +!7 = !DISubroutineType(types: !8)
> +!8 = !{null}
> +!9 = !DILocation(line: 1, column: 35, scope: !6)
> Index: ELF/Target.cpp
> ===================================================================
> --- ELF/Target.cpp
> +++ ELF/Target.cpp
> @@ -1424,6 +1424,7 @@
>    switch (Type) {
>    case R_AMDGPU_GOTPCREL:
>    case R_AMDGPU_REL32:
> +  case R_AMDGPU_ABS32:
>      write32le(Loc, Val);
>      break;
>    default:
> @@ -1433,6 +1434,8 @@
>
>  RelExpr AMDGPUTargetInfo::getRelExpr(uint32_t Type, const SymbolBody &S) const {
>    switch (Type) {
> +  case R_AMDGPU_ABS32:
> +    return R_ABS;
>    case R_AMDGPU_REL32:
>      return R_PC;
>    case R_AMDGPU_GOTPCREL:
>
>