SamplePGO - Fix PR 25482 - Do not rely on llvm.dbg.cu for discriminators

[oota-llvm.git] / test / Transforms / AddDiscriminators / basic.ll

diff --git a/test/Transforms/AddDiscriminators/basic.ll b/test/Transforms/AddDiscriminators/basic.ll
index 7c8b3d3a7ce8f83c81a08a5c6f5da318e84efd5b..0588562c7377b64f92635c4005937e0fb7405ce7 100644 (file)
--- a/test/Transforms/AddDiscriminators/basic.ll
+++ b/test/Transforms/AddDiscriminators/basic.ll
@@ -11,49 +11,56 @@
 ;         if (i < 10) x = i;
 ;       }
 
-define void @foo(i32 %i) #0 {
+define void @foo(i32 %i) #0 !dbg !4 {
 entry:
   %i.addr = alloca i32, align 4
   %x = alloca i32, align 4
   store i32 %i, i32* %i.addr, align 4
-  %0 = load i32* %i.addr, align 4, !dbg !10
+  %0 = load i32, i32* %i.addr, align 4, !dbg !10
   %cmp = icmp slt i32 %0, 10, !dbg !10
   br i1 %cmp, label %if.then, label %if.end, !dbg !10
 
 if.then:                                          ; preds = %entry
-  %1 = load i32* %i.addr, align 4, !dbg !10
-; CHECK:  %1 = load i32* %i.addr, align 4, !dbg !12
+  %1 = load i32, i32* %i.addr, align 4, !dbg !10
+; CHECK:  %1 = load i32, i32* %i.addr, align 4, !dbg ![[THEN:[0-9]+]]
 
   store i32 %1, i32* %x, align 4, !dbg !10
-; CHECK:  store i32 %1, i32* %x, align 4, !dbg !12
+; CHECK:  store i32 %1, i32* %x, align 4, !dbg ![[THEN]]
 
   br label %if.end, !dbg !10
-; CHECK:   br label %if.end, !dbg !12
+; CHECK:   br label %if.end, !dbg ![[THEN]]
 
 if.end:                                           ; preds = %if.then, %entry
   ret void, !dbg !12
+; CHECK:   ret void, !dbg ![[END:[0-9]+]]
 }
 
 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}
+; We should be able to add discriminators even in the absence of llvm.dbg.cu.
+; When using sample profiles, the front end will generate line tables but it
+; does not generate llvm.dbg.cu to prevent codegen from emitting debug info
+; to the final binary.
+; !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!7, !8}
 !llvm.ident = !{!9}
 
-!0 = !{!"0x11\0012\00clang version 3.5 \000\00\000\00\000", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [basic.c] [DW_LANG_C99]
-!1 = !{!"basic.c", !"."}
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!1 = !DIFile(filename: "basic.c", directory: ".")
 !2 = !{}
 !3 = !{!4}
-!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, void (i32)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
-!5 = !{!"0x29", !1}          ; [ DW_TAG_file_type ] [basic.c]
-!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
+!5 = !DIFile(filename: "basic.c", directory: ".")
+!6 = !DISubroutineType(types: !2)
 !7 = !{i32 2, !"Dwarf Version", i32 4}
-!8 = !{i32 1, !"Debug Info Version", i32 2}
+!8 = !{i32 1, !"Debug Info Version", i32 3}
 !9 = !{!"clang version 3.5 "}
-!10 = !MDLocation(line: 3, scope: !11)
-!11 = !{!"0xb\003\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [basic.c]
-!12 = !MDLocation(line: 4, scope: !4)
+!10 = !DILocation(line: 3, scope: !11)
+!11 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4)
+!12 = !DILocation(line: 4, scope: !4)
 
-; CHECK: !12 = !MDLocation(line: 3, scope: !13)
-; CHECK: !13 = !{!"0xb\001", !1, !11} ; [ DW_TAG_lexical_block ] [./basic.c]
-; CHECK: !14 = !MDLocation(line: 4, scope: !4)
+; CHECK: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo"
+; CHECK: ![[BLOCK:[0-9]+]] = distinct !DILexicalBlock(scope: ![[FOO]],{{.*}} line: 3)
+; CHECK: ![[THEN]] = !DILocation(line: 3, scope: ![[BLOCKFILE:[0-9]+]])
+; CHECK: ![[BLOCKFILE]] = !DILexicalBlockFile(scope: ![[BLOCK]],{{.*}} discriminator: 1)
+; CHECK: ![[END]] = !DILocation(line: 4, scope: ![[FOO]])