Enable multiple Compile Units in one module.

This means now 'llvm-ld a.bc b.bc' will preserve debug info appropriately.

llvm-svn: 103439

1 files changed, 30 insertions, 0 deletions

diff --git a/llvm/test/DebugInfo/2010-05-10-MultipleCU.ll b/llvm/test/DebugInfo/2010-05-10-MultipleCU.ll
new file mode 100644
index 00000000000..3b24c0cead3
--- /dev/null
+++ b/llvm/test/DebugInfo/2010-05-10-MultipleCU.ll
@@ -0,0 +1,30 @@
+; RUN: llc -O0 -asm-verbose  %s -o %t
+; RUN: grep DW_TAG_compile_unit %t | count 3
+; One for a.c, second one for b.c and third one for abbrev.
+
+define i32 @foo() nounwind readnone ssp {
+return:
+  ret i32 42, !dbg !0
+}
+
+define i32 @bar() nounwind readnone ssp {
+return:
+  ret i32 21, !dbg !8
+}
+
+!0 = metadata !{i32 3, i32 0, metadata !1, null}
+!1 = metadata !{i32 524299, metadata !2, i32 2, i32 0} ; [ DW_TAG_lexical_block ]
+!2 = metadata !{i32 524334, i32 0, metadata !3, metadata !"foo", metadata !"foo", metadata !"foo", metadata !3, i32 2, metadata !5, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false} ; [ DW_TAG_subprogram ]
+!3 = metadata !{i32 524329, metadata !"a.c", metadata !"/tmp/", metadata !4} ; [ DW_TAG_file_type ]
+!4 = metadata !{i32 524305, i32 0, i32 1, metadata !"a.c", metadata !"/tmp/", metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
+!5 = metadata !{i32 524309, metadata !3, metadata !"", metadata !3, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !6, i32 0, null} ; [ DW_TAG_subroutine_type ]
+!6 = metadata !{metadata !7}
+!7 = metadata !{i32 524324, metadata !3, metadata !"int", metadata !3, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
+!8 = metadata !{i32 3, i32 0, metadata !9, null}
+!9 = metadata !{i32 524299, metadata !10, i32 2, i32 0} ; [ DW_TAG_lexical_block ]
+!10 = metadata !{i32 524334, i32 0, metadata !11, metadata !"bar", metadata !"bar", metadata !"bar", metadata !11, i32 2, metadata !13, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false} ; [ DW_TAG_subprogram ]
+!11 = metadata !{i32 524329, metadata !"b.c", metadata !"/tmp/", metadata !12} ; [ DW_TAG_file_type ]
+!12 = metadata !{i32 524305, i32 0, i32 1, metadata !"b.c", metadata !"/tmp/", metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
+!13 = metadata !{i32 524309, metadata !11, metadata !"", metadata !11, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !14, i32 0, null} ; [ DW_TAG_subroutine_type ]
+!14 = metadata !{metadata !15}
+!15 = metadata !{i32 524324, metadata !11, metadata !"int", metadata !11, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]