test/ScopDetectionDiagnostics/ReportUnprofitable.ll - llvm-project/polly - Git at Google

 ; RUN: opt %loadPolly -pass-remarks-missed="polly-detect" \
 ; RUN:     -polly-detect-track-failures -polly-detect -analyze \
 ; RUN:     -polly-process-unprofitable=false < %s 2>&1| FileCheck %s

 ; RUN: opt %loadPolly -pass-remarks-missed="polly-detect" \
 ; RUN:     -polly-detect-track-failures -polly-detect -analyze \
 ; RUN:     -polly-process-unprofitable=false < %s 2>&1 -pass-remarks-output=%t.yaml
 ; RUN: cat %t.yaml | FileCheck -check-prefix=YAML %s
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

 ; void onlyWrite(float *A) {
 ;   for (long i = 0; i < 100; i++)
 ;     A[i] = 0;
 ; }
 ;
 ; void onlyRead(float *A) {
 ;   for (long i = 0; i < 100; i++)
 ;     A[i];
 ; }

 ; CHECK: remark: /tmp/test.c:2:3: The following errors keep this region from being a Scop.
 ; CHECK: remark: /tmp/test.c:2:3: No profitable polyhedral optimization found
 ; CHECK: remark: /tmp/test.c:3:10: Invalid Scop candidate ends here.

 ; CHECK: remark: /tmp/test.c:7:3: The following errors keep this region from being a Scop.
 ; CHECK: remark: /tmp/test.c:7:3: No profitable polyhedral optimization found
 ; CHECK: remark: /tmp/test.c:8:10: Invalid Scop candidate ends here.

 ; YAML: --- !Missed
 ; YAML: Pass:            polly-detect
 ; YAML: Name:            RejectionErrors
 ; YAML: DebugLoc:        { File: '/tmp/test.c', Line: 2, Column: 3 }
 ; YAML: Function:        onlyWrite
 ; YAML: Args:
 ; YAML:   - String:          The following errors keep this region from being a Scop.
 ; YAML: ...
 ; YAML: --- !Missed
 ; YAML: Pass:            polly-detect
 ; YAML: Name:            Unprofitable
 ; YAML: DebugLoc:        { File: '/tmp/test.c', Line: 2, Column: 3 }
 ; YAML: Function:        onlyWrite
 ; YAML: Args:
 ; YAML:   - String:          No profitable polyhedral optimization found
 ; YAML: ...
 ; YAML: --- !Missed
 ; YAML: Pass:            polly-detect
 ; YAML: Name:            InvalidScopEnd
 ; YAML: DebugLoc:        { File: '/tmp/test.c', Line: 3, Column: 10 }
 ; YAML: Function:        onlyWrite
 ; YAML: Args:
 ; YAML:   - String:          Invalid Scop candidate ends here.
 ; YAML: ...
 ; YAML: --- !Missed
 ; YAML: Pass:            polly-detect
 ; YAML: Name:            RejectionErrors
 ; YAML: DebugLoc:        { File: '/tmp/test.c', Line: 7, Column: 3 }
 ; YAML: Function:        onlyRead
 ; YAML: Args:
 ; YAML:   - String:          The following errors keep this region from being a Scop.
 ; YAML: ...
 ; YAML: --- !Missed
 ; YAML: Pass:            polly-detect
 ; YAML: Name:            Unprofitable
 ; YAML: DebugLoc:        { File: '/tmp/test.c', Line: 7, Column: 3 }
 ; YAML: Function:        onlyRead
 ; YAML: Args:
 ; YAML:   - String:          No profitable polyhedral optimization found
 ; YAML: ...
 ; YAML: --- !Missed
 ; YAML: Pass:            polly-detect
 ; YAML: Name:            InvalidScopEnd
 ; YAML: DebugLoc:        { File: '/tmp/test.c', Line: 8, Column: 10 }
 ; YAML: Function:        onlyRead
 ; YAML: Args:
 ; YAML:   - String:          Invalid Scop candidate ends here.


 ; Function Attrs: nounwind uwtable
 define void @onlyWrite(float* %A) #0 !dbg !4 {
 entry:
   call void @llvm.dbg.value(metadata float* %A, i64 0, metadata !14, metadata !15), !dbg !16
   call void @llvm.dbg.value(metadata i64 0, i64 0, metadata !17, metadata !15), !dbg !20
   br label %for.cond, !dbg !21

 for.cond:                                         ; preds = %for.inc, %entry
   %i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
   %exitcond = icmp ne i64 %i.0, 100, !dbg !22
   br i1 %exitcond, label %for.body, label %for.end, !dbg !22

 for.body:                                         ; preds = %for.cond
   %arrayidx = getelementptr inbounds float, float* %A, i64 %i.0, !dbg !23
   store float 0.000000e+00, float* %arrayidx, align 4, !dbg !25
   br label %for.inc, !dbg !23

 for.inc:                                          ; preds = %for.body
   %inc = add nuw nsw i64 %i.0, 1, !dbg !26
   call void @llvm.dbg.value(metadata i64 %inc, i64 0, metadata !17, metadata !15), !dbg !20
   br label %for.cond, !dbg !27

 for.end:                                          ; preds = %for.cond
   ret void, !dbg !28
 }

 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1

 ; Function Attrs: nounwind uwtable
 define void @onlyRead(float* %A) #0 !dbg !10 {
 entry:
   call void @llvm.dbg.value(metadata float* %A, i64 0, metadata !29, metadata !15), !dbg !30
   call void @llvm.dbg.value(metadata i64 0, i64 0, metadata !31, metadata !15), !dbg !33
   br label %for.cond, !dbg !34

 for.cond:                                         ; preds = %for.inc, %entry
   %i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
   %exitcond = icmp ne i64 %i.0, 100, !dbg !35
   br i1 %exitcond, label %for.body, label %for.end, !dbg !35

 for.body:                                         ; preds = %for.cond
   %arrayidx = getelementptr inbounds float, float* %A, i64 %i.0, !dbg !36
   %val = load float, float* %arrayidx, align 4, !dbg !38
   br label %for.inc, !dbg !36

 for.inc:                                          ; preds = %for.body
   %inc = add nuw nsw i64 %i.0, 1, !dbg !39
   call void @llvm.dbg.value(metadata i64 %inc, i64 0, metadata !31, metadata !15), !dbg !33
   br label %for.cond, !dbg !40

 for.end:                                          ; preds = %for.cond
   ret void, !dbg !41
 }

 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1

 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "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 = !{!11, !12}
 !llvm.ident = !{!13}

 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0  (llvm/trunk 229257)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
 !1 = !DIFile(filename: "/tmp/test.c", directory: "/home/grosser/Projects/polly/git/tools/polly")
 !2 = !{}
 !4 = distinct !DISubprogram(name: "onlyWrite", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
 !5 = !DIFile(filename: "/tmp/test.c", directory: "/home/grosser/Projects/polly/git/tools/polly")
 !6 = !DISubroutineType(types: !7)
 !7 = !{null, !8}
 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
 !10 = distinct !DISubprogram(name: "onlyRead", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2)
 !11 = !{i32 2, !"Dwarf Version", i32 4}
 !12 = !{i32 2, !"Debug Info Version", i32 3}
 !13 = !{!"clang version 3.7.0  (llvm/trunk 229257)"}
 !14 = !DILocalVariable(name: "A", line: 1, arg: 1, scope: !4, file: !5, type: !8)
 !15 = !DIExpression()
 !16 = !DILocation(line: 1, column: 23, scope: !4)
 !17 = !DILocalVariable(name: "i", line: 2, scope: !18, file: !5, type: !19)
 !18 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !4)
 !19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
 !20 = !DILocation(line: 2, column: 13, scope: !18)
 !21 = !DILocation(line: 2, column: 8, scope: !18)
 !22 = !DILocation(line: 2, column: 3, scope: !18)
 !23 = !DILocation(line: 3, column: 5, scope: !24)
 !24 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !18)
 !25 = !DILocation(line: 3, column: 10, scope: !24)
 !26 = !DILocation(line: 2, column: 30, scope: !24)
 !27 = !DILocation(line: 2, column: 3, scope: !24)
 !28 = !DILocation(line: 4, column: 1, scope: !4)
 !29 = !DILocalVariable(name: "A", line: 6, arg: 1, scope: !10, file: !5, type: !8)
 !30 = !DILocation(line: 6, column: 22, scope: !10)
 !31 = !DILocalVariable(name: "i", line: 7, scope: !32, file: !5, type: !19)
 !32 = distinct !DILexicalBlock(line: 7, column: 3, file: !1, scope: !10)
 !33 = !DILocation(line: 7, column: 13, scope: !32)
 !34 = !DILocation(line: 7, column: 8, scope: !32)
 !35 = !DILocation(line: 7, column: 3, scope: !32)
 !36 = !DILocation(line: 8, column: 5, scope: !37)
 !37 = distinct !DILexicalBlock(line: 7, column: 3, file: !1, scope: !32)
 !38 = !DILocation(line: 8, column: 10, scope: !37)
 !39 = !DILocation(line: 7, column: 30, scope: !37)
 !40 = !DILocation(line: 7, column: 3, scope: !37)
 !41 = !DILocation(line: 9, column: 1, scope: !10)
	; RUN: opt %loadPolly -pass-remarks-missed="polly-detect" \
	; RUN: -polly-detect-track-failures -polly-detect -analyze \
	; RUN: -polly-process-unprofitable=false < %s 2>&1\| FileCheck %s

	; RUN: opt %loadPolly -pass-remarks-missed="polly-detect" \
	; RUN: -polly-detect-track-failures -polly-detect -analyze \
	; RUN: -polly-process-unprofitable=false < %s 2>&1 -pass-remarks-output=%t.yaml
	; RUN: cat %t.yaml \| FileCheck -check-prefix=YAML %s
	target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

	; void onlyWrite(float *A) {
	; for (long i = 0; i < 100; i++)
	; A[i] = 0;
	; }
	;
	; void onlyRead(float *A) {
	; for (long i = 0; i < 100; i++)
	; A[i];
	; }

	; CHECK: remark: /tmp/test.c:2:3: The following errors keep this region from being a Scop.
	; CHECK: remark: /tmp/test.c:2:3: No profitable polyhedral optimization found
	; CHECK: remark: /tmp/test.c:3:10: Invalid Scop candidate ends here.

	; CHECK: remark: /tmp/test.c:7:3: The following errors keep this region from being a Scop.
	; CHECK: remark: /tmp/test.c:7:3: No profitable polyhedral optimization found
	; CHECK: remark: /tmp/test.c:8:10: Invalid Scop candidate ends here.

	; YAML: --- !Missed
	; YAML: Pass: polly-detect
	; YAML: Name: RejectionErrors
	; YAML: DebugLoc: { File: '/tmp/test.c', Line: 2, Column: 3 }
	; YAML: Function: onlyWrite
	; YAML: Args:
	; YAML: - String: The following errors keep this region from being a Scop.
	; YAML: ...
	; YAML: --- !Missed
	; YAML: Pass: polly-detect
	; YAML: Name: Unprofitable
	; YAML: DebugLoc: { File: '/tmp/test.c', Line: 2, Column: 3 }
	; YAML: Function: onlyWrite
	; YAML: Args:
	; YAML: - String: No profitable polyhedral optimization found
	; YAML: ...
	; YAML: --- !Missed
	; YAML: Pass: polly-detect
	; YAML: Name: InvalidScopEnd
	; YAML: DebugLoc: { File: '/tmp/test.c', Line: 3, Column: 10 }
	; YAML: Function: onlyWrite
	; YAML: Args:
	; YAML: - String: Invalid Scop candidate ends here.
	; YAML: ...
	; YAML: --- !Missed
	; YAML: Pass: polly-detect
	; YAML: Name: RejectionErrors
	; YAML: DebugLoc: { File: '/tmp/test.c', Line: 7, Column: 3 }
	; YAML: Function: onlyRead
	; YAML: Args:
	; YAML: - String: The following errors keep this region from being a Scop.
	; YAML: ...
	; YAML: --- !Missed
	; YAML: Pass: polly-detect
	; YAML: Name: Unprofitable
	; YAML: DebugLoc: { File: '/tmp/test.c', Line: 7, Column: 3 }
	; YAML: Function: onlyRead
	; YAML: Args:
	; YAML: - String: No profitable polyhedral optimization found
	; YAML: ...
	; YAML: --- !Missed
	; YAML: Pass: polly-detect
	; YAML: Name: InvalidScopEnd
	; YAML: DebugLoc: { File: '/tmp/test.c', Line: 8, Column: 10 }
	; YAML: Function: onlyRead
	; YAML: Args:
	; YAML: - String: Invalid Scop candidate ends here.


	; Function Attrs: nounwind uwtable
	define void @onlyWrite(float* %A) #0 !dbg !4 {
	entry:
	call void @llvm.dbg.value(metadata float* %A, i64 0, metadata !14, metadata !15), !dbg !16
	call void @llvm.dbg.value(metadata i64 0, i64 0, metadata !17, metadata !15), !dbg !20
	br label %for.cond, !dbg !21

	for.cond: ; preds = %for.inc, %entry
	%i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
	%exitcond = icmp ne i64 %i.0, 100, !dbg !22
	br i1 %exitcond, label %for.body, label %for.end, !dbg !22

	for.body: ; preds = %for.cond
	%arrayidx = getelementptr inbounds float, float* %A, i64 %i.0, !dbg !23
	store float 0.000000e+00, float* %arrayidx, align 4, !dbg !25
	br label %for.inc, !dbg !23

	for.inc: ; preds = %for.body
	%inc = add nuw nsw i64 %i.0, 1, !dbg !26
	call void @llvm.dbg.value(metadata i64 %inc, i64 0, metadata !17, metadata !15), !dbg !20
	br label %for.cond, !dbg !27

	for.end: ; preds = %for.cond
	ret void, !dbg !28
	}

	; Function Attrs: nounwind readnone
	declare void @llvm.dbg.declare(metadata, metadata, metadata) #1

	; Function Attrs: nounwind uwtable
	define void @onlyRead(float* %A) #0 !dbg !10 {
	entry:
	call void @llvm.dbg.value(metadata float* %A, i64 0, metadata !29, metadata !15), !dbg !30
	call void @llvm.dbg.value(metadata i64 0, i64 0, metadata !31, metadata !15), !dbg !33
	br label %for.cond, !dbg !34

	for.cond: ; preds = %for.inc, %entry
	%i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
	%exitcond = icmp ne i64 %i.0, 100, !dbg !35
	br i1 %exitcond, label %for.body, label %for.end, !dbg !35

	for.body: ; preds = %for.cond
	%arrayidx = getelementptr inbounds float, float* %A, i64 %i.0, !dbg !36
	%val = load float, float* %arrayidx, align 4, !dbg !38
	br label %for.inc, !dbg !36

	for.inc: ; preds = %for.body
	%inc = add nuw nsw i64 %i.0, 1, !dbg !39
	call void @llvm.dbg.value(metadata i64 %inc, i64 0, metadata !31, metadata !15), !dbg !33
	br label %for.cond, !dbg !40

	for.end: ; preds = %for.cond
	ret void, !dbg !41
	}

	; Function Attrs: nounwind readnone
	declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1

	attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "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 = !{!11, !12}
	!llvm.ident = !{!13}

	!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (llvm/trunk 229257)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
	!1 = !DIFile(filename: "/tmp/test.c", directory: "/home/grosser/Projects/polly/git/tools/polly")
	!2 = !{}
	!4 = distinct !DISubprogram(name: "onlyWrite", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
	!5 = !DIFile(filename: "/tmp/test.c", directory: "/home/grosser/Projects/polly/git/tools/polly")
	!6 = !DISubroutineType(types: !7)
	!7 = !{null, !8}
	!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
	!9 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
	!10 = distinct !DISubprogram(name: "onlyRead", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2)
	!11 = !{i32 2, !"Dwarf Version", i32 4}
	!12 = !{i32 2, !"Debug Info Version", i32 3}
	!13 = !{!"clang version 3.7.0 (llvm/trunk 229257)"}
	!14 = !DILocalVariable(name: "A", line: 1, arg: 1, scope: !4, file: !5, type: !8)
	!15 = !DIExpression()
	!16 = !DILocation(line: 1, column: 23, scope: !4)
	!17 = !DILocalVariable(name: "i", line: 2, scope: !18, file: !5, type: !19)
	!18 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !4)
	!19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
	!20 = !DILocation(line: 2, column: 13, scope: !18)
	!21 = !DILocation(line: 2, column: 8, scope: !18)
	!22 = !DILocation(line: 2, column: 3, scope: !18)
	!23 = !DILocation(line: 3, column: 5, scope: !24)
	!24 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !18)
	!25 = !DILocation(line: 3, column: 10, scope: !24)
	!26 = !DILocation(line: 2, column: 30, scope: !24)
	!27 = !DILocation(line: 2, column: 3, scope: !24)
	!28 = !DILocation(line: 4, column: 1, scope: !4)
	!29 = !DILocalVariable(name: "A", line: 6, arg: 1, scope: !10, file: !5, type: !8)
	!30 = !DILocation(line: 6, column: 22, scope: !10)
	!31 = !DILocalVariable(name: "i", line: 7, scope: !32, file: !5, type: !19)
	!32 = distinct !DILexicalBlock(line: 7, column: 3, file: !1, scope: !10)
	!33 = !DILocation(line: 7, column: 13, scope: !32)
	!34 = !DILocation(line: 7, column: 8, scope: !32)
	!35 = !DILocation(line: 7, column: 3, scope: !32)
	!36 = !DILocation(line: 8, column: 5, scope: !37)
	!37 = distinct !DILexicalBlock(line: 7, column: 3, file: !1, scope: !32)
	!38 = !DILocation(line: 8, column: 10, scope: !37)
	!39 = !DILocation(line: 7, column: 30, scope: !37)
	!40 = !DILocation(line: 7, column: 3, scope: !37)
	!41 = !DILocation(line: 9, column: 1, scope: !10)