2017-08-12 05:12:04 +08:00
|
|
|
; RUN: opt < %s -instcombine -sample-profile -sample-profile-file=%S/Inputs/cov-zero-samples.prof -sample-profile-check-record-coverage=100 -pass-remarks=sample-profile -pass-remarks-analysis=sample-profile -o /dev/null 2>&1 | FileCheck %s
|
|
|
|
; RUN: opt < %s -passes="function(instcombine),sample-profile" -sample-profile-file=%S/Inputs/cov-zero-samples.prof -sample-profile-check-record-coverage=100 -pass-remarks=sample-profile -pass-remarks-analysis=sample-profile -o /dev/null 2>&1 | FileCheck %s
|
2015-11-21 05:46:38 +08:00
|
|
|
;
|
2016-03-02 06:53:02 +08:00
|
|
|
; CHECK: remark: cov-zero-samples.cc:9:29: Applied 404065 samples from profile (offset: 2.1)
|
2015-11-21 05:46:38 +08:00
|
|
|
; CHECK: remark: cov-zero-samples.cc:10:9: Applied 443089 samples from profile (offset: 3)
|
|
|
|
; CHECK: remark: cov-zero-samples.cc:10:36: Applied 0 samples from profile (offset: 3.1)
|
|
|
|
; CHECK: remark: cov-zero-samples.cc:11:12: Applied 404066 samples from profile (offset: 4)
|
|
|
|
; CHECK: remark: cov-zero-samples.cc:13:25: Applied 0 samples from profile (offset: 6)
|
|
|
|
; CHECK: remark: cov-zero-samples.cc:14:3: Applied 0 samples from profile (offset: 7)
|
|
|
|
; CHECK: remark: cov-zero-samples.cc:10:9: most popular destination for conditional branches at cov-zero-samples.cc:9:3
|
|
|
|
; CHECK: remark: cov-zero-samples.cc:11:12: most popular destination for conditional branches at cov-zero-samples.cc:10:9
|
|
|
|
;
|
|
|
|
; Coverage for this profile should be 100%
|
|
|
|
; CHECK-NOT: warning: cov-zero-samples.cc:1:
|
|
|
|
|
2016-12-22 08:45:21 +08:00
|
|
|
source_filename = "test/Transforms/SampleProfile/cov-zero-samples.ll"
|
|
|
|
|
|
|
|
@N = global i64 8000000000, align 8, !dbg !0
|
2015-11-21 05:46:38 +08:00
|
|
|
@.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1
|
|
|
|
|
2016-12-22 08:45:21 +08:00
|
|
|
define i32 @_Z12never_calledi(i32 %i) !dbg !11 {
|
2015-11-21 05:46:38 +08:00
|
|
|
entry:
|
2016-12-22 08:45:21 +08:00
|
|
|
ret i32 0, !dbg !15
|
2015-11-21 05:46:38 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
; Function Attrs: nounwind readnone
|
2016-12-22 08:45:21 +08:00
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
|
2015-11-21 05:46:38 +08:00
|
|
|
|
2016-12-22 08:45:21 +08:00
|
|
|
define i32 @main() !dbg !17 {
|
2015-11-21 05:46:38 +08:00
|
|
|
entry:
|
|
|
|
%retval = alloca i32, align 4
|
|
|
|
%sum = alloca i32, align 4
|
|
|
|
%i = alloca i64, align 8
|
|
|
|
store i32 0, i32* %retval, align 4
|
2016-12-22 08:45:21 +08:00
|
|
|
call void @llvm.dbg.declare(metadata i32* %sum, metadata !20, metadata !21), !dbg !22
|
|
|
|
store i32 0, i32* %sum, align 4, !dbg !22
|
|
|
|
call void @llvm.dbg.declare(metadata i64* %i, metadata !23, metadata !21), !dbg !25
|
|
|
|
store i64 0, i64* %i, align 8, !dbg !25
|
|
|
|
br label %for.cond, !dbg !26
|
2015-11-21 05:46:38 +08:00
|
|
|
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
2016-12-22 08:45:21 +08:00
|
|
|
|
|
|
|
%0 = load i64, i64* %i, align 8, !dbg !27
|
|
|
|
%1 = load volatile i64, i64* @N, align 8, !dbg !30
|
|
|
|
%cmp = icmp slt i64 %0, %1, !dbg !31
|
|
|
|
br i1 %cmp, label %for.body, label %for.end, !dbg !32
|
2015-11-21 05:46:38 +08:00
|
|
|
|
|
|
|
for.body: ; preds = %for.cond
|
2016-12-22 08:45:21 +08:00
|
|
|
%2 = load i64, i64* %i, align 8, !dbg !33
|
|
|
|
%3 = load volatile i64, i64* @N, align 8, !dbg !36
|
|
|
|
%cmp1 = icmp sgt i64 %2, %3, !dbg !37
|
|
|
|
br i1 %cmp1, label %if.then, label %if.end, !dbg !38
|
2015-11-21 05:46:38 +08:00
|
|
|
|
|
|
|
if.then: ; preds = %for.body
|
2016-12-22 08:45:21 +08:00
|
|
|
%4 = load i64, i64* %i, align 8, !dbg !39
|
|
|
|
%conv = trunc i64 %4 to i32, !dbg !39
|
|
|
|
%call = call i32 @_Z12never_calledi(i32 %conv), !dbg !41
|
|
|
|
%5 = load i32, i32* %sum, align 4, !dbg !42
|
|
|
|
%add = add nsw i32 %5, %call, !dbg !42
|
|
|
|
store i32 %add, i32* %sum, align 4, !dbg !42
|
|
|
|
br label %if.end, !dbg !43
|
2015-11-21 05:46:38 +08:00
|
|
|
|
|
|
|
if.end: ; preds = %if.then, %for.body
|
2016-12-22 08:45:21 +08:00
|
|
|
%6 = load i64, i64* %i, align 8, !dbg !44
|
|
|
|
%div = sdiv i64 %6, 239, !dbg !45
|
|
|
|
%7 = load i32, i32* %sum, align 4, !dbg !46
|
|
|
|
%conv2 = sext i32 %7 to i64, !dbg !46
|
|
|
|
%mul = mul nsw i64 %conv2, %div, !dbg !46
|
|
|
|
%conv3 = trunc i64 %mul to i32, !dbg !46
|
|
|
|
store i32 %conv3, i32* %sum, align 4, !dbg !46
|
|
|
|
br label %for.inc, !dbg !47
|
2015-11-21 05:46:38 +08:00
|
|
|
|
|
|
|
for.inc: ; preds = %if.end
|
2016-12-22 08:45:21 +08:00
|
|
|
%8 = load i64, i64* %i, align 8, !dbg !48
|
|
|
|
%inc = add nsw i64 %8, 1, !dbg !48
|
|
|
|
store i64 %inc, i64* %i, align 8, !dbg !48
|
|
|
|
br label %for.cond, !dbg !50
|
2015-11-21 05:46:38 +08:00
|
|
|
|
|
|
|
for.end: ; preds = %for.cond
|
2016-12-22 08:45:21 +08:00
|
|
|
%9 = load i32, i32* %sum, align 4, !dbg !51
|
|
|
|
%call4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %9), !dbg !52
|
|
|
|
ret i32 0, !dbg !53
|
2015-11-21 05:46:38 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
declare i32 @printf(i8*, ...)
|
|
|
|
|
2016-12-22 08:45:21 +08:00
|
|
|
attributes #0 = { nounwind readnone }
|
|
|
|
|
|
|
|
!llvm.dbg.cu = !{!2}
|
|
|
|
!llvm.module.flags = !{!8, !9}
|
|
|
|
!llvm.ident = !{!10}
|
|
|
|
|
2017-08-31 02:06:51 +08:00
|
|
|
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
|
2016-12-22 08:45:21 +08:00
|
|
|
!1 = !DIGlobalVariable(name: "N", scope: !2, file: !3, line: 3, type: !6, isLocal: false, isDefinition: true)
|
|
|
|
!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.8.0 (trunk 253667) (llvm/trunk 253670)", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !4, globals: !5)
|
|
|
|
!3 = !DIFile(filename: "cov-zero-samples.cc", directory: ".")
|
|
|
|
!4 = !{}
|
|
|
|
!5 = !{!0}
|
|
|
|
!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7)
|
|
|
|
!7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed)
|
|
|
|
!8 = !{i32 2, !"Dwarf Version", i32 4}
|
|
|
|
!9 = !{i32 2, !"Debug Info Version", i32 3}
|
|
|
|
!10 = !{!"clang version 3.8.0 (trunk 253667) (llvm/trunk 253670)"}
|
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
In order to set breakpoints on labels and list source code around
labels, we need collect debug information for labels, i.e., label
name, the function label belong, line number in the file, and the
address label located. In order to keep these information in LLVM
IR and to allow backend to generate debug information correctly.
We create a new kind of metadata for labels, DILabel. The format
of DILabel is
!DILabel(scope: !1, name: "foo", file: !2, line: 3)
We hope to keep debug information as much as possible even the
code is optimized. So, we create a new kind of intrinsic for label
metadata to avoid the metadata is eliminated with basic block.
The intrinsic will keep existing if we keep it from optimized out.
The format of the intrinsic is
llvm.dbg.label(metadata !1)
It has only one argument, that is the DILabel metadata. The
intrinsic will follow the label immediately. Backend could get the
label metadata through the intrinsic's parameter.
We also create DIBuilder API for labels to be used by Frontend.
Frontend could use createLabel() to allocate DILabel objects, and use
insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR.
Differential Revision: https://reviews.llvm.org/D45024
Patch by Hsiangkai Wang.
llvm-svn: 331841
2018-05-09 10:40:45 +08:00
|
|
|
!11 = distinct !DISubprogram(name: "never_called", linkageName: "_Z12never_calledi", scope: !3, file: !3, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
|
2016-12-22 08:45:21 +08:00
|
|
|
!12 = !DISubroutineType(types: !13)
|
|
|
|
!13 = !{!14, !14}
|
|
|
|
!14 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
|
|
!15 = !DILocation(line: 5, column: 27, scope: !16)
|
2017-02-24 02:27:45 +08:00
|
|
|
!16 = !DILexicalBlockFile(scope: !11, file: !3, discriminator: 6)
|
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
In order to set breakpoints on labels and list source code around
labels, we need collect debug information for labels, i.e., label
name, the function label belong, line number in the file, and the
address label located. In order to keep these information in LLVM
IR and to allow backend to generate debug information correctly.
We create a new kind of metadata for labels, DILabel. The format
of DILabel is
!DILabel(scope: !1, name: "foo", file: !2, line: 3)
We hope to keep debug information as much as possible even the
code is optimized. So, we create a new kind of intrinsic for label
metadata to avoid the metadata is eliminated with basic block.
The intrinsic will keep existing if we keep it from optimized out.
The format of the intrinsic is
llvm.dbg.label(metadata !1)
It has only one argument, that is the DILabel metadata. The
intrinsic will follow the label immediately. Backend could get the
label metadata through the intrinsic's parameter.
We also create DIBuilder API for labels to be used by Frontend.
Frontend could use createLabel() to allocate DILabel objects, and use
insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR.
Differential Revision: https://reviews.llvm.org/D45024
Patch by Hsiangkai Wang.
llvm-svn: 331841
2018-05-09 10:40:45 +08:00
|
|
|
!17 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 7, type: !18, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
|
2016-12-22 08:45:21 +08:00
|
|
|
!18 = !DISubroutineType(types: !19)
|
|
|
|
!19 = !{!14}
|
|
|
|
!20 = !DILocalVariable(name: "sum", scope: !17, file: !3, line: 8, type: !14)
|
|
|
|
!21 = !DIExpression()
|
|
|
|
!22 = !DILocation(line: 8, column: 7, scope: !17)
|
|
|
|
!23 = !DILocalVariable(name: "i", scope: !24, file: !3, line: 9, type: !7)
|
|
|
|
!24 = distinct !DILexicalBlock(scope: !17, file: !3, line: 9, column: 3)
|
|
|
|
!25 = !DILocation(line: 9, column: 18, scope: !24)
|
|
|
|
!26 = !DILocation(line: 9, column: 8, scope: !24)
|
|
|
|
!27 = !DILocation(line: 9, column: 25, scope: !28)
|
2017-02-24 02:27:45 +08:00
|
|
|
!28 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 2)
|
2016-12-22 08:45:21 +08:00
|
|
|
!29 = distinct !DILexicalBlock(scope: !24, file: !3, line: 9, column: 3)
|
|
|
|
!30 = !DILocation(line: 9, column: 29, scope: !28)
|
|
|
|
!31 = !DILocation(line: 9, column: 27, scope: !28)
|
|
|
|
!32 = !DILocation(line: 9, column: 3, scope: !28)
|
|
|
|
!33 = !DILocation(line: 10, column: 9, scope: !34)
|
|
|
|
!34 = distinct !DILexicalBlock(scope: !35, file: !3, line: 10, column: 9)
|
|
|
|
!35 = distinct !DILexicalBlock(scope: !29, file: !3, line: 9, column: 37)
|
|
|
|
!36 = !DILocation(line: 10, column: 13, scope: !34)
|
|
|
|
!37 = !DILocation(line: 10, column: 11, scope: !34)
|
|
|
|
!38 = !DILocation(line: 10, column: 9, scope: !35)
|
|
|
|
!39 = !DILocation(line: 10, column: 36, scope: !40)
|
2017-02-24 02:27:45 +08:00
|
|
|
!40 = !DILexicalBlockFile(scope: !34, file: !3, discriminator: 2)
|
2016-12-22 08:45:21 +08:00
|
|
|
!41 = !DILocation(line: 10, column: 23, scope: !40)
|
|
|
|
!42 = !DILocation(line: 10, column: 20, scope: !40)
|
|
|
|
!43 = !DILocation(line: 10, column: 16, scope: !40)
|
|
|
|
!44 = !DILocation(line: 11, column: 12, scope: !35)
|
|
|
|
!45 = !DILocation(line: 11, column: 14, scope: !35)
|
|
|
|
!46 = !DILocation(line: 11, column: 9, scope: !35)
|
|
|
|
!47 = !DILocation(line: 12, column: 3, scope: !35)
|
|
|
|
!48 = !DILocation(line: 9, column: 33, scope: !49)
|
2017-02-24 02:27:45 +08:00
|
|
|
!49 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 4)
|
2016-12-22 08:45:21 +08:00
|
|
|
!50 = !DILocation(line: 9, column: 3, scope: !49)
|
|
|
|
!51 = !DILocation(line: 13, column: 25, scope: !17)
|
|
|
|
!52 = !DILocation(line: 13, column: 3, scope: !17)
|
|
|
|
!53 = !DILocation(line: 14, column: 3, scope: !17)
|
|
|
|
|