DI: Reverse direction of subprogram -> function edge.

[oota-llvm.git] / test / Transforms / GCOVProfiling / return-block.ll

diff --git a/test/Transforms/GCOVProfiling/return-block.ll b/test/Transforms/GCOVProfiling/return-block.ll
index 787a75ebd84e0b062a36ddb3301f3f67b607b631..9b502a14bfa25ef5d9aaf7704ba20bfc097f1834 100644 (file)
--- a/test/Transforms/GCOVProfiling/return-block.ll
+++ b/test/Transforms/GCOVProfiling/return-block.ll
@@ -1,8 +1,14 @@
 ; Inject metadata to set the .gcno file location
 ; RUN: echo '!19 = !{!"%/T/return-block.ll", !0}' > %t1
 ; RUN: cat %s %t1 > %t2
+
+; By default, the return block is last.
 ; RUN: opt -insert-gcov-profiling -disable-output %t2
-; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck %s
+; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck -check-prefix=CHECK -check-prefix=RETURN-LAST %s
+
+; But we can optionally emit it second, to match newer gcc versions.
+; RUN: opt -insert-gcov-profiling -gcov-exit-block-before-body -disable-output %t2
+; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck -check-prefix=CHECK -check-prefix=RETURN-SECOND %s
 
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
@@ -10,15 +16,15 @@ target triple = "x86_64-unknown-linux-gnu"
 @A = common global i32 0, align 4
 
 ; Function Attrs: nounwind uwtable
-define void @test() #0 {
+define void @test() #0 !dbg !4 {
 entry:
-  tail call void (...)* @f() #2, !dbg !14
+  tail call void (...) @f() #2, !dbg !14
   %0 = load i32, i32* @A, align 4, !dbg !15
   %tobool = icmp eq i32 %0, 0, !dbg !15
   br i1 %tobool, label %if.end, label %if.then, !dbg !15
 
 if.then:                                          ; preds = %entry
-  tail call void (...)* @g() #2, !dbg !16
+  tail call void (...) @g() #2, !dbg !16
   br label %if.end, !dbg !16
 
 if.end:                                           ; preds = %entry, %if.then
@@ -38,29 +44,32 @@ attributes #2 = { nounwind }
 !llvm.module.flags = !{!11, !12}
 !llvm.ident = !{!13}
 
-!0 = !{!"0x11\0012\00clang version 3.6.0 (trunk 223182)\001\00\000\00\001", !1, !2, !2, !3, !8, !2} ; [ DW_TAG_compile_unit ] [return-block.c] [DW_LANG_C99]
-!1 = !{!".../llvm/test/Transforms/GCOVProfiling/return-block.ll", !""}
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 (trunk 223182)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !8, imports: !2)
+!1 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/return-block.ll", directory: "")
 !2 = !{}
 !3 = !{!4}
-!4 = !{!"0x2e\00test\00test\00\005\000\001\000\000\000\001\005", !1, !5, !6, null, void ()* @test, null, null, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [test]
-!5 = !{!"0x29", !1}    ; [ DW_TAG_file_type ] [return-block.c]
-!6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = distinct !DISubprogram(name: "test", line: 5, isLocal: false, isDefinition: true, isOptimized: true, scopeLine: 5, file: !1, scope: !5, type: !6, variables: !2)
+!5 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/return-block.ll", directory: "")
+!6 = !DISubroutineType(types: !7)
 !7 = !{null}
 !8 = !{!9}
-!9 = !{!"0x34\00A\00A\00\003\000\001", null, !5, !10, i32* @A, null} ; [ DW_TAG_variable ] [A] [line 3] [def]
-!10 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = !DIGlobalVariable(name: "A", line: 3, isLocal: false, isDefinition: true, scope: null, file: !5, type: !10, variable: i32* @A)
+!10 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !11 = !{i32 2, !"Dwarf Version", i32 4}
-!12 = !{i32 2, !"Debug Info Version", i32 2}
+!12 = !{i32 2, !"Debug Info Version", i32 3}
 !13 = !{!"clang version 3.6.0 (trunk 223182)"}
-!14 = !MDLocation(line: 6, column: 3, scope: !4)
-!15 = !MDLocation(line: 7, column: 7, scope: !4)
-!16 = !MDLocation(line: 8, column: 5, scope: !17)
-!17 = !{!"0xb\007\007\000", !1, !4} ; [ DW_TAG_lexical_block ] [return-block.c]
-!18 = !MDLocation(line: 9, column: 1, scope: !4)
+!14 = !DILocation(line: 6, column: 3, scope: !4)
+!15 = !DILocation(line: 7, column: 7, scope: !4)
+!16 = !DILocation(line: 8, column: 5, scope: !17)
+!17 = distinct !DILexicalBlock(line: 7, column: 7, file: !1, scope: !4)
+!18 = !DILocation(line: 9, column: 1, scope: !4)
 
-; There should be no destination edges for block 1.
-; CHECK: Block : 0 Counter : 0
-; CHECK-NEXT:         Destination Edges : 2 (0), 
-; CHECK-NEXT: Block : 1 Counter : 0
-; CHECK-NEXT:         Source Edges : 4 (0), 
-; CHECK-NEXT: Block : 2 Counter : 0
+; There should be no destination edges for the exit block.
+; CHECK: Block : 1 Counter : 0
+; RETURN-LAST:       Destination Edges
+; RETURN-SECOND-NOT: Destination Edges
+; CHECK: Block : 2 Counter : 0
+; CHECK: Block : 4 Counter : 0
+; RETURN-LAST-NOT: Destination Edges
+; RETURN-SECOND:   Destination Edges
+; CHECK-NOT: Block :