Revert "Use the range machinery for DW_AT_ranges and DW_AT_high/lo_pc."

This appears to trigger failures with optimization and function arguments somehow.

This reverts commit r204277.

llvm-svn: 204286

6 files changed, 84 insertions, 145 deletions

diff --git a/llvm/test/DebugInfo/X86/cu-ranges.ll b/llvm/test/DebugInfo/X86/cu-ranges.ll
index e6dc17e2d50..a15518488cd 100644
--- a/llvm/test/DebugInfo/X86/cu-ranges.ll
+++ b/llvm/test/DebugInfo/X86/cu-ranges.ll
@@ -9,9 +9,6 @@
 ; int foo (int a) {
 ;   return a+1;
 ; }
-; int bar (int b) {
-;   return b+2;
-; }
 
 ; With function sections enabled make sure that we have a DW_AT_ranges attribute.
 ; FUNCTION-SECTIONS: DW_AT_ranges
@@ -27,7 +24,7 @@ define i32 @foo(i32 %a) #0 {
 entry:
   %a.addr = alloca i32, align 4
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !13), !dbg !14
+  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !12), !dbg !13
   %0 = load i32* %a.addr, align 4, !dbg !14
   %add = add nsw i32 %0, 1, !dbg !14
   ret i32 %add, !dbg !14
@@ -36,38 +33,25 @@ entry:
 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.declare(metadata, metadata) #1
 
-; Function Attrs: nounwind uwtable
-define i32 @bar(i32 %b) #0 {
-entry:
-  %b.addr = alloca i32, align 4
-  store i32 %b, i32* %b.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %b.addr}, metadata !15), !dbg !16
-  %0 = load i32* %b.addr, align 4, !dbg !16
-  %add = add nsw i32 %0, 2, !dbg !16
-  ret i32 %add, !dbg !16
-}
-
 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 = { nounwind readnone }
 
 !llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!10, !11}
-!llvm.ident = !{!12}
+!llvm.module.flags = !{!9, !10}
+!llvm.ident = !{!11}
 
-!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]
-!1 = metadata !{metadata !"z.c", metadata !"/usr/local/google/home/echristo"}
+!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 (trunk 199256) (llvm/trunk 199254)", 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/tmp/foo.c] [DW_LANG_C99]
+!1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
 !2 = metadata !{}
-!3 = metadata !{metadata !4, metadata !9}
+!3 = metadata !{metadata !4}
 !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]
-!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/z.c]
+!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/foo.c]
 !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 ]
 !7 = metadata !{metadata !8, metadata !8}
 !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]
-!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]
-!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
-!12 = metadata !{metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
-!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]
-!14 = metadata !{i32 1, i32 0, metadata !4, null}
-!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]
-!16 = metadata !{i32 2, i32 0, metadata !9, null}
+!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!11 = metadata !{metadata !"clang version 3.5 (trunk 199256) (llvm/trunk 199254)"}
+!12 = metadata !{i32 786689, metadata !4, metadata !"a", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 1]
+!13 = metadata !{i32 1, i32 0, metadata !4, null}
+!14 = metadata !{i32 2, i32 0, metadata !4, null}
diff --git a/llvm/test/DebugInfo/X86/fission-cu.ll b/llvm/test/DebugInfo/X86/fission-cu.ll
index f6ea6445f83..3833a6c5e09 100644
--- a/llvm/test/DebugInfo/X86/fission-cu.ll
+++ b/llvm/test/DebugInfo/X86/fission-cu.ll
@@ -29,6 +29,7 @@
 ; CHECK: DW_AT_GNU_addr_base     DW_FORM_sec_offset
 ; CHECK: DW_AT_comp_dir  DW_FORM_strp
 ; CHECK: DW_AT_GNU_dwo_id        DW_FORM_data8
+; CHECK: DW_AT_low_pc    DW_FORM_addr
 
 ; Check that we're using the right forms.
 ; CHECK: .debug_abbrev.dwo contents:
@@ -62,6 +63,7 @@
 ; CHECK: DW_AT_GNU_addr_base [DW_FORM_sec_offset]                   (0x00000000)
 ; CHECK: DW_AT_comp_dir [DW_FORM_strp]     ( .debug_str[0x00000008] = "/usr/local/google/home/echristo/tmp")
 ; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8]  (0x1f1f859683d49324)
+; CHECK: DW_AT_low_pc [DW_FORM_addr]       (0x0000000000000000)
 
 ; Check that the rest of the compile units have information.
 ; CHECK: .debug_info.dwo contents:
diff --git a/llvm/test/DebugInfo/X86/low-pc-cu.ll b/llvm/test/DebugInfo/X86/low-pc-cu.ll
index 979d4006b92..1d354c30d6e 100644
--- a/llvm/test/DebugInfo/X86/low-pc-cu.ll
+++ b/llvm/test/DebugInfo/X86/low-pc-cu.ll
@@ -5,32 +5,28 @@
 
 ; CHECK: DW_TAG_compile_unit [1]
 ; CHECK: DW_AT_low_pc [DW_FORM_addr]       (0x0000000000000000)
-; CHECK: DW_AT_high_pc [DW_FORM_data4]
 ; CHECK: DW_TAG_subprogram [2]
-; CHECK: DW_AT_low_pc [DW_FORM_addr]
-; CHECK: DW_AT_high_pc [DW_FORM_data4]
 
-; Function Attrs: nounwind uwtable
-define void @z() #0 {
+define i32 @_Z1qv() nounwind uwtable readnone ssp {
 entry:
-  ret void, !dbg !11
+  ret i32 undef, !dbg !13
 }
 
-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" }
-
 !llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!8, !9}
-!llvm.ident = !{!10}
+!llvm.module.flags = !{!16}
 
-!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]
-!1 = metadata !{metadata !"z.c", metadata !"/usr/local/google/home/echristo"}
-!2 = metadata !{}
-!3 = metadata !{metadata !4}
-!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"z", metadata !"z", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @z, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [z]
-!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/z.c]
-!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 ]
-!7 = metadata !{null}
-!8 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!9 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
-!10 = metadata !{metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
-!11 = metadata !{i32 1, i32 0, metadata !4, null}
+!0 = metadata !{i32 786449, metadata !15, i32 4, metadata !"clang version 3.1 (trunk 153454) (llvm/trunk 153471)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1,  metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
+!1 = metadata !{}
+!3 = metadata !{metadata !5, metadata !12}
+!5 = metadata !{i32 786478, metadata !6, null, metadata !"q", metadata !"q", metadata !"_Z1qv", i32 5, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z1qv, null, null, metadata !10, i32 0} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 0] [q]
+!6 = metadata !{i32 786473, metadata !15} ; [ DW_TAG_file_type ]
+!7 = metadata !{i32 786453, i32 0, null, i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = metadata !{metadata !9}
+!9 = metadata !{i32 786468, metadata !15, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
+!10 = metadata !{metadata !11}
+!11 = metadata !{i32 786468}                      ; [ DW_TAG_base_type ]
+!12 = metadata !{i32 786478, metadata !15, metadata !6, metadata !"t", metadata !"t", metadata !"", i32 2, metadata !7, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, null, null, null, metadata !10, i32 0} ; [ DW_TAG_subprogram ]
+!13 = metadata !{i32 7, i32 1, metadata !14, null}
+!14 = metadata !{i32 786443, metadata !5, i32 5, i32 1, metadata !6, i32 0} ; [ DW_TAG_lexical_block ]
+!15 = metadata !{metadata !"foo.cpp", metadata !"/Users/echristo/tmp"}
+!16 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
diff --git a/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll b/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
index 344d063266b..b65745b2b71 100644
--- a/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
+++ b/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
@@ -8,20 +8,13 @@
 ; CHECK: .debug_info contents:
 ; CHECK: DW_TAG_compile_unit
 ; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset]   (0x00000000)
+; CHECK: DW_AT_ranges [DW_FORM_sec_offset]      (0x00000000)
 ; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000000)
-; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000010)
-; CHECK: DW_TAG_subprogram
-; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000000)
-; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000010)
 
 ; CHECK: DW_TAG_compile_unit
 ; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset]   (0x0000003c)
-; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000010)
-; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000009)
-; CHECK: DW_TAG_subprogram
-; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000010)
-; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000009)
-
+; CHECK: DW_AT_ranges [DW_FORM_sec_offset]      (0x00000020)
+; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000000)
 
 ; CHECK: .debug_line contents:
 ; CHECK-NEXT: Line table prologue:
@@ -35,10 +28,13 @@
 ; DWARF3: .debug_info contents:
 ; DWARF3: DW_TAG_compile_unit
 ; DWARF3: DW_AT_stmt_list [DW_FORM_data4]    (0x00000000)
+; DWARF3: DW_AT_ranges [DW_FORM_data4]       (0x00000000)
+; DWARF3: DW_AT_low_pc [DW_FORM_addr]        (0x0000000000000000)
 
 ; DWARF3: DW_TAG_compile_unit
 ; DWARF3: DW_AT_stmt_list [DW_FORM_data4]   (0x0000003c)
-
+; DWARF3: DW_AT_ranges [DW_FORM_data4]      (0x00000020)
+; DWARF3: DW_AT_low_pc [DW_FORM_addr]       (0x0000000000000000)
 
 ; DWARF3: .debug_line contents:
 ; DWARF3-NEXT: Line table prologue:
diff --git a/llvm/test/DebugInfo/cu-range-hole.ll b/llvm/test/DebugInfo/cu-range-hole.ll
index 65a4956a6fc..46d2083cefa 100644
--- a/llvm/test/DebugInfo/cu-range-hole.ll
+++ b/llvm/test/DebugInfo/cu-range-hole.ll
@@ -4,28 +4,26 @@
 
 ; Check that we emit ranges for this CU since we have a function with and
 ; without debug info.
-; Note: This depends upon the order of output in the .o file. Currently it's
-; in order of the output to make sure that the CU has multiple ranges since
-; there's a function in the middle. If they were together then it would have
-; a single range and no DW_AT_ranges.
 ; CHECK: DW_TAG_compile_unit
 ; CHECK: DW_AT_ranges
 ; CHECK: DW_TAG_subprogram
-; CHECK: DW_TAG_subprogram
 
 ; Function Attrs: nounwind uwtable
-define i32 @b(i32 %c) #0 {
+define i32 @foo(i32 %a) #0 {
 entry:
-  %c.addr = alloca i32, align 4
-  store i32 %c, i32* %c.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %c.addr}, metadata !13), !dbg !14
-  %0 = load i32* %c.addr, align 4, !dbg !14
-  %add = add nsw i32 %0, 1, !dbg !14
+  %a.addr = alloca i32, align 4
+  store i32 %a, i32* %a.addr, align 4
+  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !12), !dbg !13
+  %0 = load i32* %a.addr, align 4, !dbg !14
+  %add = add nsw i32 %0, 5, !dbg !14
   ret i32 %add, !dbg !14
 }
 
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata) #1
+
 ; Function Attrs: nounwind uwtable
-define i32 @a(i32 %b) #0 {
+define i32 @bar(i32 %b) #0 {
 entry:
   %b.addr = alloca i32, align 4
   store i32 %b, i32* %b.addr, align 4
@@ -34,41 +32,25 @@ entry:
   ret i32 %add
 }
 
-; Function Attrs: nounwind readnone
-declare void @llvm.dbg.declare(metadata, metadata) #1
-
-; Function Attrs: nounwind uwtable
-define i32 @d(i32 %e) #0 {
-entry:
-  %e.addr = alloca i32, align 4
-  store i32 %e, i32* %e.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %e.addr}, metadata !15), !dbg !16
-  %0 = load i32* %e.addr, align 4, !dbg !16
-  %add = add nsw i32 %0, 1, !dbg !16
-  ret i32 %add, !dbg !16
-}
-
 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 = { nounwind readnone }
 
-!llvm.ident = !{!0, !0}
-!llvm.dbg.cu = !{!1}
-!llvm.module.flags = !{!11, !12}
-
-!0 = metadata !{metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
-!1 = metadata !{i32 786449, metadata !2, i32 12, metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)", i1 false, metadata !"", i32 0, metadata !3, metadata !3, metadata !4, metadata !3, metadata !3, metadata !"", i32 1}
-!2 = metadata !{metadata !"b.c", metadata !"/usr/local/google/home/echristo"}
-!3 = metadata !{}
-!4 = metadata !{metadata !5, metadata !10}
-!5 = metadata !{i32 786478, metadata !2, metadata !6, metadata !"b", metadata !"b", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @b, null, null, metadata !3, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [b]
-!6 = metadata !{i32 786473, metadata !2}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/b.c]
-!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!8 = metadata !{metadata !9, metadata !9}
-!9 = 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]
-!10 = metadata !{i32 786478, metadata !2, metadata !6, metadata !"d", metadata !"d", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @d, null, null, metadata !3, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [d]
-!11 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!12 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
-!13 = metadata !{i32 786689, metadata !5, metadata !"c", metadata !6, i32 16777217, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [c] [line 1]
-!14 = metadata !{i32 1, i32 0, metadata !5, null}
-!15 = metadata !{i32 786689, metadata !10, metadata !"e", metadata !6, i32 16777219, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [e] [line 3]
-!16 = metadata !{i32 3, i32 0, metadata !10, null}
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!9, !10}
+!llvm.ident = !{!11, !11}
+
+!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 (trunk 203945) (llvm/trunk 203946)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1}
+!1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo"}
+!2 = metadata !{}
+!3 = metadata !{metadata !4}
+!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]
+!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/foo.c]
+!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 ]
+!7 = metadata !{metadata !8, metadata !8}
+!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]
+!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!11 = metadata !{metadata !"clang version 3.5.0 (trunk 203945) (llvm/trunk 203946)"}
+!12 = metadata !{i32 786689, metadata !4, metadata !"a", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 1]
+!13 = metadata !{i32 1, i32 0, metadata !4, null}
+!14 = metadata !{i32 2, i32 0, metadata !4, null}
diff --git a/llvm/test/DebugInfo/cu-ranges.ll b/llvm/test/DebugInfo/cu-ranges.ll
index 9262a2239c7..14eca434b83 100644
--- a/llvm/test/DebugInfo/cu-ranges.ll
+++ b/llvm/test/DebugInfo/cu-ranges.ll
@@ -2,16 +2,11 @@
 ; RUN: %llc_dwarf -O0 -filetype=obj %s -o %t
 ; RUN: llvm-dwarfdump %t | FileCheck %s
 
-; Check that we emit ranges for this which has a non-traditional section and a normal section.
+; Check that we emit ranges for this which has a non-traditional section.
 
 ; CHECK: DW_TAG_compile_unit
 ; CHECK: DW_AT_ranges
 ; CHECK: DW_TAG_subprogram
-; CHECK: DW_AT_low_pc
-; CHECK: DW_AT_high_pc
-; CHECK: DW_TAG_subprogram
-; CHECK: DW_AT_low_pc
-; CHECK: DW_AT_high_pc
 
 ; CHECK: .debug_ranges contents:
 ; FIXME: When we get better dumping facilities we'll want to elaborate here.
@@ -22,50 +17,34 @@ define i32 @foo(i32 %a) #0 section "__TEXT,__foo" {
 entry:
   %a.addr = alloca i32, align 4
   store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !13), !dbg !14
-  %0 = load i32* %a.addr, align 4, !dbg !15
-  %add = add nsw i32 %0, 5, !dbg !15
-  ret i32 %add, !dbg !15
+  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !12), !dbg !13
+  %0 = load i32* %a.addr, align 4, !dbg !14
+  %add = add nsw i32 %0, 5, !dbg !14
+  ret i32 %add, !dbg !14
 }
 
 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.declare(metadata, metadata) #1
 
-; Function Attrs: nounwind uwtable
-define i32 @bar(i32 %a) #0 {
-entry:
-  %a.addr = alloca i32, align 4
-  store i32 %a, i32* %a.addr, align 4
-  call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !16), !dbg !17
-  %0 = load i32* %a.addr, align 4, !dbg !18
-  %add = add nsw i32 %0, 5, !dbg !18
-  ret i32 %add, !dbg !18
-}
-
 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 = { nounwind readnone }
 
 !llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!10, !11}
-!llvm.ident = !{!12}
+!llvm.module.flags = !{!9, !10}
+!llvm.ident = !{!11}
 
-!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/foo.c] [DW_LANG_C99]
+!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 (trunk 203959) (llvm/trunk 203946)", 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/foo.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo"}
 !2 = metadata !{}
-!3 = metadata !{metadata !4, metadata !9}
+!3 = metadata !{metadata !4}
 !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]
 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/foo.c]
 !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 ]
 !7 = metadata !{metadata !8, metadata !8}
 !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]
-!9 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"", i32 5, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @bar, null, null, metadata !2, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [bar]
-!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
-!12 = metadata !{metadata !"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
-!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]
-!14 = metadata !{i32 1, i32 0, metadata !4, null}
-!15 = metadata !{i32 2, i32 0, metadata !4, null}
-!16 = metadata !{i32 786689, metadata !9, metadata !"a", metadata !5, i32 16777221, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 5]
-!17 = metadata !{i32 5, i32 0, metadata !9, null}
-!18 = metadata !{i32 6, i32 0, metadata !9, null}
-
+!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!11 = metadata !{metadata !"clang version 3.5.0 (trunk 203959) (llvm/trunk 203946)"}
+!12 = metadata !{i32 786689, metadata !4, metadata !"a", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 1]
+!13 = metadata !{i32 1, i32 0, metadata !4, null}
+!14 = metadata !{i32 2, i32 0, metadata !4, null}