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d28d079aa7
The existing coverage tracker counts the number of records that were used from the input profile. An alternative view of coverage is to check how many available samples were applied. This way, if the profile contains several records with few samples, it doesn't really matter much that they were not applied. The more interesting records to apply are the ones that contribute many samples. llvm-svn: 253912
47 lines
2.2 KiB
LLVM
47 lines
2.2 KiB
LLVM
; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/coverage-warning.prof -sample-profile-check-record-coverage=90 -sample-profile-check-sample-coverage=100 -o /dev/null 2>&1 | FileCheck %s
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define i32 @foo(i32 %i) !dbg !4 {
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; The profile has samples for line locations that are no longer present.
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; Coverage does not reach 90%, so we should get this warning:
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;
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; CHECK: warning: coverage-warning.c:1: 2 of 3 available profile records (66%) were applied
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; CHECK: warning: coverage-warning.c:1: 29000 of 30700 available profile samples (94%) were applied
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entry:
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%retval = alloca i32, align 4
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%0 = load i32, i32* %i.addr, align 4, !dbg !9
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%cmp = icmp sgt i32 %0, 1000, !dbg !10
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br i1 %cmp, label %if.then, label %if.end, !dbg !9
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if.then: ; preds = %entry
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store i32 30, i32* %retval, align 4, !dbg !11
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br label %return, !dbg !11
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if.end: ; preds = %entry
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store i32 3, i32* %retval, align 4, !dbg !12
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br label %return, !dbg !12
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return: ; preds = %if.end, %if.then
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%1 = load i32, i32* %retval, align 4, !dbg !13
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ret i32 %1, !dbg !13
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!6, !7}
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!llvm.ident = !{!8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251524) (llvm/trunk 251531)", isOptimized: false, runtimeVersion: 0, emissionKind: 2, enums: !2, subprograms: !3)
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!1 = !DIFile(filename: "coverage-warning.c", directory: ".")
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!2 = !{}
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!3 = !{!4}
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!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
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!5 = !DISubroutineType(types: !2)
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!6 = !{i32 2, !"Dwarf Version", i32 4}
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!7 = !{i32 2, !"Debug Info Version", i32 3}
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!8 = !{!"clang version 3.8.0 (trunk 251524) (llvm/trunk 251531)"}
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!9 = !DILocation(line: 2, column: 7, scope: !4)
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!10 = !DILocation(line: 2, column: 9, scope: !4)
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!11 = !DILocation(line: 3, column: 5, scope: !4)
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!12 = !DILocation(line: 4, column: 3, scope: !4)
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!13 = !DILocation(line: 5, column: 1, scope: !4)
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