1 files changed, 153 insertions, 0 deletions
diff --git a/test/DebugInfo/Inputs/gmlt.ll b/test/DebugInfo/Inputs/gmlt.ll
new file mode 100644
index 0000000..ba8d113
--- /dev/null
+++ b/test/DebugInfo/Inputs/gmlt.ll
@@ -0,0 +1,153 @@
+; REQUIRES: object-emission
+; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s
+
+; Generated from the following source compiled with clang++ -gmlt:
+; void f1() {}
+; void __attribute__((section("__TEXT,__bar"))) f2() {}
+; void __attribute__((always_inline)) f3() { f1(); }
+; void f4() { f3(); }
+
+; Check that
+;  * -gmlt includes no DW_TAG_subprograms for subprograms without inlined
+;    subroutines.
+;  * yet still produces DW_AT_ranges and a range list in debug_ranges that
+;    describes those subprograms
+
+; CHECK: DW_TAG_compile_unit
+; CHECK:   DW_AT_ranges [DW_FORM_sec_offset] (0x00000000
+; CHECK-NOT: {{DW_TAG|NULL}}
+
+; Omitting the subprograms without inlined subroutines is not possible
+; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms
+; (which happens with this optimization if there are no inlined subroutines).
+
+; DARWIN:  DW_TAG_subprogram
+; DARWIN-NOT: DW_TAG
+; DARWIN:    DW_AT_name {{.*}} "f1"
+; DARWIN-NOT: {{DW_TAG|NULL}}
+; DARWIN:  DW_TAG_subprogram
+; DARWIN-NOT: DW_TAG
+; DARWIN:    DW_AT_name {{.*}} "f2"
+; DARWIN-NOT: {{DW_TAG|NULL}}
+; DARWIN:  DW_TAG_subprogram
+; DARWIN-NOT: DW_TAG
+; Can't check the abstract_origin value across the DARWIN/CHECK checking and
+; ordering, so don't bother - just trust me, it refers to f3 down there.
+; DARWIN:    DW_AT_abstract_origin
+; DARWIN-NOT: {{DW_TAG|NULL}}
+
+
+; FIXME: Emitting separate abstract definitions is inefficient when we could
+; just attach the DW_AT_name to the inlined_subroutine directly. Except that
+; would produce many string relocations. Implement string indexing in the
+; skeleton CU to address the relocation problem, then remove abstract
+; definitions from -gmlt here.
+
+; CHECK: DW_TAG_subprogram
+; CHECK-NEXT:     DW_AT_name {{.*}} "f3"
+
+; FIXME: We don't really need DW_AT_inline, consumers can ignore this due to
+; the absence of high_pc/low_pc/ranges and know that they just need it for
+; retrieving the name of a concrete inlined instance
+
+; CHECK-NOT: {{DW_TAG|DW_AT|NULL}}
+
+; Check that we only provide the minimal attributes on a subprogram to save space.
+; CHECK:   DW_TAG_subprogram
+; CHECK-NEXT:     DW_AT_low_pc
+; CHECK-NEXT:     DW_AT_high_pc
+; CHECK-NEXT:     DW_AT_name
+; CHECK-NOT: {{DW_TAG|DW_AT}}
+; CHECK:     DW_TAG_inlined_subroutine
+
+; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save
+; space once we have support for string indexing in non-dwo sections
+
+; CHECK-NEXT:       DW_AT_abstract_origin {{.*}} "f3"
+; CHECK-NEXT:       DW_AT_low_pc
+; CHECK-NEXT:       DW_AT_high_pc
+; CHECK-NEXT:       DW_AT_call_file
+; CHECK-NEXT:       DW_AT_call_line
+
+; Make sure we don't have any other subprograms here (subprograms with no
+; inlined subroutines are omitted by design to save space)
+
+; CHECK-NOT: {{DW_TAG|DW_AT}}
+; CHECK: NULL
+; CHECK-NOT: {{DW_TAG|DW_AT}}
+; CHECK: NULL
+
+
+; CHECK: .debug_ranges contents:
+
+; ... some addresses (depends on platform (such as platforms with function
+; reordering in the linker), and looks wonky on platforms with zero values
+; written in relocation places (dumper needs to	be fixed to read the
+; relocations rather than interpret that as the end of a range list))
+
+; CHECK: 00000000 <End of list>
+
+
+; Check that we don't emit any pubnames or pubtypes under -gmlt
+; CHECK: .debug_pubnames contents:
+; CHECK-NOT: Offset
+
+; CHECK: .debug_pubtypes contents:
+; CHECK-NOT: Offset
+
+; CHECK: .apple{{.*}} contents:
+
+; Function Attrs: nounwind uwtable
+define void @_Z2f1v() #0 {
+entry:
+  ret void, !dbg !13
+}
+
+; Function Attrs: nounwind uwtable
+define void @_Z2f2v() #0 section "__TEXT,__bar" {
+entry:
+  ret void, !dbg !14
+}
+
+; Function Attrs: alwaysinline nounwind uwtable
+define void @_Z2f3v() #1 {
+entry:
+  call void @_Z2f1v(), !dbg !15
+  ret void, !dbg !16
+}
+
+; Function Attrs: nounwind uwtable
+define void @_Z2f4v() #0 {
+entry:
+  call void @_Z2f1v() #2, !dbg !17
+  ret void, !dbg !19
+}
+
+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" }
+attributes #1 = { alwaysinline 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" }
+attributes #2 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!10, !11}
+!llvm.ident = !{!12}
+
+!0 = metadata !{metadata !"0x11\004\00clang version 3.6.0 \000\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/gmlt.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !"gmlt.cpp", metadata !"/tmp/dbginfo"}
+!2 = metadata !{}
+!3 = metadata !{metadata !4, metadata !7, metadata !8, metadata !9}
+!4 = metadata !{metadata !"0x2e\00f1\00f1\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f1v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [f1]
+!5 = metadata !{metadata !"0x29", metadata !1}          ; [ DW_TAG_file_type ] [/tmp/dbginfo/gmlt.cpp]
+!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = metadata !{metadata !"0x2e\00f2\00f2\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f2v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [f2]
+!8 = metadata !{metadata !"0x2e\00f3\00f3\00\003\000\001\000\006\00256\000\003", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f3v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f3]
+!9 = metadata !{metadata !"0x2e\00f4\00f4\00\004\000\001\000\006\00256\000\004", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f4v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [f4]
+!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!11 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
+!12 = metadata !{metadata !"clang version 3.6.0 "}
+!13 = metadata !{i32 1, i32 12, metadata !4, null}
+!14 = metadata !{i32 2, i32 53, metadata !7, null}
+!15 = metadata !{i32 3, i32 44, metadata !8, null}
+!16 = metadata !{i32 3, i32 50, metadata !8, null}
+!17 = metadata !{i32 3, i32 44, metadata !8, metadata !18}
+!18 = metadata !{i32 4, i32 13, metadata !9, null}
+!19 = metadata !{i32 4, i32 19, metadata !9, null}