;
; #include <stdio.h>
; #include <stdlib.h>
-;
+
; int main(int argc, char *argv[]) {
; if (argc < 2)
; return 1;
; double result;
; int limit = atoi(argv[1]);
; if (limit > 100) {
-; double s = 23.041968;
+; double s = 23.041968 * atoi(argv[2]);
; for (int u = 0; u < limit; u++) {
; double x = s;
; s = x + 3.049 + (double)u;
; }
; result = s;
; } else {
-; result = 0;
+; result = atoi(argv[2]);
; }
; printf("result is %lf\n", result);
; return 0;
@.str = private unnamed_addr constant [15 x i8] c"result is %lf\0A\00", align 1
-; Function Attrs: nounwind uwtable
-define i32 @main(i32 %argc, i8** nocapture readonly %argv) #0 {
+; Function Attrs: uwtable
+define i32 @main(i32 %argc, i8** %argv) #0 !dbg !6 {
; CHECK: Printing analysis 'Branch Probability Analysis' for function 'main':
entry:
- tail call void @llvm.dbg.value(metadata i32 %argc, i64 0, metadata !13, metadata !{}), !dbg !27
- tail call void @llvm.dbg.value(metadata i8** %argv, i64 0, metadata !14, metadata !{}), !dbg !27
- %cmp = icmp slt i32 %argc, 2, !dbg !28
- br i1 %cmp, label %return, label %if.end, !dbg !28
-; CHECK: edge entry -> return probability is 1 / 2 = 50%
-; CHECK: edge entry -> if.end probability is 1 / 2 = 50%
+ %retval = alloca i32, align 4
+ %argc.addr = alloca i32, align 4
+ %argv.addr = alloca i8**, align 8
+ %result = alloca double, align 8
+ %limit = alloca i32, align 4
+ %s = alloca double, align 8
+ %u = alloca i32, align 4
+ %x = alloca double, align 8
+ store i32 0, i32* %retval, align 4
+ store i32 %argc, i32* %argc.addr, align 4
+ call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !16, metadata !17), !dbg !18
+ store i8** %argv, i8*** %argv.addr, align 8
+ call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !19, metadata !17), !dbg !20
+ %0 = load i32, i32* %argc.addr, align 4, !dbg !21
+ %cmp = icmp slt i32 %0, 2, !dbg !23
+ br i1 %cmp, label %if.then, label %if.end, !dbg !24
+; CHECK: edge entry -> if.then probability is 0x4ccccccd / 0x80000000 = 60.00%
+; CHECK: edge entry -> if.end probability is 0x33333333 / 0x80000000 = 40.00%
+
+if.then: ; preds = %entry
+ store i32 1, i32* %retval, align 4, !dbg !25
+ br label %return, !dbg !25
if.end: ; preds = %entry
- %arrayidx = getelementptr inbounds i8** %argv, i64 1, !dbg !30
- %0 = load i8** %arrayidx, align 8, !dbg !30, !tbaa !31
- %call = tail call i32 @atoi(i8* %0) #4, !dbg !30
- tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !17, metadata !{}), !dbg !30
- %cmp1 = icmp sgt i32 %call, 100, !dbg !35
- br i1 %cmp1, label %for.body, label %if.end6, !dbg !35
-; CHECK: edge if.end -> for.body probability is 1 / 2 = 50%
-; CHECK: edge if.end -> if.end6 probability is 1 / 2 = 50%
-
-for.body: ; preds = %if.end, %for.body
- %u.016 = phi i32 [ %inc, %for.body ], [ 0, %if.end ]
- %s.015 = phi double [ %sub, %for.body ], [ 0x40370ABE6A337A81, %if.end ]
- %add = fadd double %s.015, 3.049000e+00, !dbg !36
- %conv = sitofp i32 %u.016 to double, !dbg !36
- %add4 = fadd double %add, %conv, !dbg !36
- tail call void @llvm.dbg.value(metadata double %add4, i64 0, metadata !18, metadata !{}), !dbg !36
- %div = fdiv double 3.940000e+00, %s.015, !dbg !37
- %mul = fmul double %div, 3.200000e-01, !dbg !37
- %add5 = fadd double %add4, %mul, !dbg !37
- %sub = fsub double %add4, %add5, !dbg !37
- tail call void @llvm.dbg.value(metadata double %sub, i64 0, metadata !18, metadata !{}), !dbg !37
- %inc = add nsw i32 %u.016, 1, !dbg !38
- tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !21, metadata !{}), !dbg !38
- %exitcond = icmp eq i32 %inc, %call, !dbg !38
- br i1 %exitcond, label %if.end6, label %for.body, !dbg !38
-; CHECK: edge for.body -> if.end6 probability is 1 / 10227 = 0.00977804
-; CHECK: edge for.body -> for.body probability is 10226 / 10227 = 99.9902% [HOT edge]
-
-if.end6: ; preds = %for.body, %if.end
- %result.0 = phi double [ 0.000000e+00, %if.end ], [ %sub, %for.body ]
- %call7 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([15 x i8]* @.str, i64 0, i64 0), double %result.0), !dbg !39
- br label %return, !dbg !40
-; CHECK: edge if.end6 -> return probability is 16 / 16 = 100% [HOT edge]
-
-return: ; preds = %entry, %if.end6
- %retval.0 = phi i32 [ 0, %if.end6 ], [ 1, %entry ]
- ret i32 %retval.0, !dbg !41
-}
+ call void @llvm.dbg.declare(metadata double* %result, metadata !26, metadata !17), !dbg !27
+ call void @llvm.dbg.declare(metadata i32* %limit, metadata !28, metadata !17), !dbg !29
+ %1 = load i8**, i8*** %argv.addr, align 8, !dbg !30
+ %arrayidx = getelementptr inbounds i8*, i8** %1, i64 1, !dbg !30
+ %2 = load i8*, i8** %arrayidx, align 8, !dbg !30
+ %call = call i32 @atoi(i8* %2) #4, !dbg !31
+ store i32 %call, i32* %limit, align 4, !dbg !29
+ %3 = load i32, i32* %limit, align 4, !dbg !32
+ %cmp1 = icmp sgt i32 %3, 100, !dbg !34
+ br i1 %cmp1, label %if.then.2, label %if.else, !dbg !35
+; CHECK: edge if.end -> if.then.2 probability is 0x66666666 / 0x80000000 = 80.00%
+; CHECK: edge if.end -> if.else probability is 0x1999999a / 0x80000000 = 20.00%
-; Function Attrs: nounwind readonly
-declare i32 @atoi(i8* nocapture) #1
+if.then.2: ; preds = %if.end
+ call void @llvm.dbg.declare(metadata double* %s, metadata !36, metadata !17), !dbg !38
+ %4 = load i8**, i8*** %argv.addr, align 8, !dbg !39
+ %arrayidx3 = getelementptr inbounds i8*, i8** %4, i64 2, !dbg !39
+ %5 = load i8*, i8** %arrayidx3, align 8, !dbg !39
+ %call4 = call i32 @atoi(i8* %5) #4, !dbg !40
+ %conv = sitofp i32 %call4 to double, !dbg !40
+ %mul = fmul double 0x40370ABE6A337A81, %conv, !dbg !41
+ store double %mul, double* %s, align 8, !dbg !38
+ call void @llvm.dbg.declare(metadata i32* %u, metadata !42, metadata !17), !dbg !44
+ store i32 0, i32* %u, align 4, !dbg !44
+ br label %for.cond, !dbg !45
+
+for.cond: ; preds = %for.inc, %if.then.2
+ %6 = load i32, i32* %u, align 4, !dbg !46
+ %7 = load i32, i32* %limit, align 4, !dbg !48
+ %cmp5 = icmp slt i32 %6, %7, !dbg !49
+ br i1 %cmp5, label %for.body, label %for.end, !dbg !50
+
+for.body: ; preds = %for.cond
+ call void @llvm.dbg.declare(metadata double* %x, metadata !51, metadata !17), !dbg !53
+ %8 = load double, double* %s, align 8, !dbg !54
+ store double %8, double* %x, align 8, !dbg !53
+ %9 = load double, double* %x, align 8, !dbg !55
+ %add = fadd double %9, 3.049000e+00, !dbg !56
+ %10 = load i32, i32* %u, align 4, !dbg !57
+ %conv6 = sitofp i32 %10 to double, !dbg !57
+ %add7 = fadd double %add, %conv6, !dbg !58
+ store double %add7, double* %s, align 8, !dbg !59
+ %11 = load double, double* %s, align 8, !dbg !60
+ %12 = load double, double* %x, align 8, !dbg !61
+ %div = fdiv double 3.940000e+00, %12, !dbg !62
+ %mul8 = fmul double %div, 3.200000e-01, !dbg !63
+ %add9 = fadd double %11, %mul8, !dbg !64
+ %13 = load double, double* %s, align 8, !dbg !65
+ %sub = fsub double %13, %add9, !dbg !65
+ store double %sub, double* %s, align 8, !dbg !65
+ br label %for.inc, !dbg !66
+
+for.inc: ; preds = %for.body
+ %14 = load i32, i32* %u, align 4, !dbg !67
+ %inc = add nsw i32 %14, 1, !dbg !67
+ store i32 %inc, i32* %u, align 4, !dbg !67
+ br label %for.cond, !dbg !68
-; Function Attrs: nounwind
-declare i32 @printf(i8* nocapture readonly, ...) #2
+for.end: ; preds = %for.cond
+ %15 = load double, double* %s, align 8, !dbg !69
+ store double %15, double* %result, align 8, !dbg !70
+ br label %if.end.13, !dbg !71
+
+if.else: ; preds = %if.end
+ %16 = load i8**, i8*** %argv.addr, align 8, !dbg !72
+ %arrayidx10 = getelementptr inbounds i8*, i8** %16, i64 2, !dbg !72
+ %17 = load i8*, i8** %arrayidx10, align 8, !dbg !72
+ %call11 = call i32 @atoi(i8* %17) #4, !dbg !74
+ %conv12 = sitofp i32 %call11 to double, !dbg !74
+ store double %conv12, double* %result, align 8, !dbg !75
+ br label %if.end.13
+
+if.end.13: ; preds = %if.else, %for.end
+ %18 = load double, double* %result, align 8, !dbg !76
+ %call14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i32 0, i32 0), double %18), !dbg !77
+ store i32 0, i32* %retval, align 4, !dbg !78
+ br label %return, !dbg !78
+
+return: ; preds = %if.end.13, %if.then
+ %19 = load i32, i32* %retval, align 4, !dbg !79
+ ret i32 %19, !dbg !79
+}
; Function Attrs: nounwind readnone
-declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #3
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
+
+; Function Attrs: nounwind readonly
+declare i32 @atoi(i8*) #2
+
+declare i32 @printf(i8*, ...) #3
-attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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 readonly "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #2 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #3 = { nounwind readnone }
+attributes #0 = { uwtable "disable-tail-calls"="false" "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" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind readnone }
+attributes #2 = { nounwind readonly "disable-tail-calls"="false" "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" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #3 = { "disable-tail-calls"="false" "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" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #4 = { nounwind readonly }
!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!25, !42}
-!llvm.ident = !{!26}
+!llvm.module.flags = !{!13, !14}
+!llvm.ident = !{!15}
-!0 = !{!"0x11\004\00clang version 3.4 (trunk 192896) (llvm/trunk 192895)\001\00\000\00\000", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [./branch.cc] [DW_LANG_C_plus_plus]
-!1 = !{!"branch.cc", !"."}
-!2 = !{i32 0}
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 248211) (llvm/trunk 248217)", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !3, subprograms: !5)
+!1 = !DIFile(filename: "test.cc", directory: "/ssd/llvm_commit")
+!2 = !{}
!3 = !{!4}
-!4 = !{!"0x2e\00main\00main\00\004\000\001\000\006\00256\001\004", !1, !5, !6, null, i32 (i32, i8**)* @main, null, null, !12} ; [ DW_TAG_subprogram ] [line 4] [def] [main]
-!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [./branch.cc]
-!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!7 = !{!8, !8, !9}
-!8 = !{!"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 = !{!"0xf\00\000\0064\0064\000\000", null, null, !10} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
-!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !11} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from char]
-!11 = !{!"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
-!12 = !{!13, !14, !15, !17, !18, !21, !23}
-!13 = !{!"0x101\00argc\0016777220\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [argc] [line 4]
-!14 = !{!"0x101\00argv\0033554436\000", !4, !5, !9} ; [ DW_TAG_arg_variable ] [argv] [line 4]
-!15 = !{!"0x100\00result\007\000", !4, !5, !16} ; [ DW_TAG_auto_variable ] [result] [line 7]
-!16 = !{!"0x24\00double\000\0064\0064\000\000\004", null, null} ; [ DW_TAG_base_type ] [double] [line 0, size 64, align 64, offset 0, enc DW_ATE_float]
-!17 = !{!"0x100\00limit\008\000", !4, !5, !8} ; [ DW_TAG_auto_variable ] [limit] [line 8]
-!18 = !{!"0x100\00s\0010\000", !19, !5, !16} ; [ DW_TAG_auto_variable ] [s] [line 10]
-!19 = !{!"0xb\009\000\000", !1, !20} ; [ DW_TAG_lexical_block ] [./branch.cc]
-!20 = !{!"0xb\009\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [./branch.cc]
-!21 = !{!"0x100\00u\0011\000", !22, !5, !8} ; [ DW_TAG_auto_variable ] [u] [line 11]
-!22 = !{!"0xb\0011\000\000", !1, !19} ; [ DW_TAG_lexical_block ] [./branch.cc]
-!23 = !{!"0x100\00x\0012\000", !24, !5, !16} ; [ DW_TAG_auto_variable ] [x] [line 12]
-!24 = !{!"0xb\0011\000\000", !1, !22} ; [ DW_TAG_lexical_block ] [./branch.cc]
-!25 = !{i32 2, !"Dwarf Version", i32 4}
-!26 = !{!"clang version 3.4 (trunk 192896) (llvm/trunk 192895)"}
-!27 = !{i32 4, i32 0, !4, null}
-!28 = !{i32 5, i32 0, !29, null}
-!29 = !{!"0xb\005\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [./branch.cc]
-!30 = !{i32 8, i32 0, !4, null}
-!31 = !{!32, !32, i64 0}
-!32 = !{!"any pointer", !33, i64 0}
-!33 = !{!"omnipotent char", !34, i64 0}
-!34 = !{!"Simple C/C++ TBAA"}
-!35 = !{i32 9, i32 0, !20, null}
-!36 = !{i32 13, i32 0, !24, null}
-!37 = !{i32 14, i32 0, !24, null}
-!38 = !{i32 11, i32 0, !22, null}
-!39 = !{i32 20, i32 0, !4, null}
-!40 = !{i32 21, i32 0, !4, null}
-!41 = !{i32 22, i32 0, !4, null}
-!42 = !{i32 1, !"Debug Info Version", i32 2}
+!4 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
+!5 = !{!6}
+!6 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 4, type: !7, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
+!7 = !DISubroutineType(types: !8)
+!8 = !{!9, !9, !10}
+!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, align: 64)
+!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64, align: 64)
+!12 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
+!13 = !{i32 2, !"Dwarf Version", i32 4}
+!14 = !{i32 2, !"Debug Info Version", i32 3}
+!15 = !{!"clang version 3.8.0 (trunk 248211) (llvm/trunk 248217)"}
+!16 = !DILocalVariable(name: "argc", arg: 1, scope: !6, file: !1, line: 4, type: !9)
+!17 = !DIExpression()
+!18 = !DILocation(line: 4, column: 15, scope: !6)
+!19 = !DILocalVariable(name: "argv", arg: 2, scope: !6, file: !1, line: 4, type: !10)
+!20 = !DILocation(line: 4, column: 27, scope: !6)
+!21 = !DILocation(line: 5, column: 8, scope: !22)
+!22 = distinct !DILexicalBlock(scope: !6, file: !1, line: 5, column: 8)
+!23 = !DILocation(line: 5, column: 13, scope: !22)
+!24 = !DILocation(line: 5, column: 8, scope: !6)
+!25 = !DILocation(line: 6, column: 6, scope: !22)
+!26 = !DILocalVariable(name: "result", scope: !6, file: !1, line: 7, type: !4)
+!27 = !DILocation(line: 7, column: 11, scope: !6)
+!28 = !DILocalVariable(name: "limit", scope: !6, file: !1, line: 8, type: !9)
+!29 = !DILocation(line: 8, column: 8, scope: !6)
+!30 = !DILocation(line: 8, column: 21, scope: !6)
+!31 = !DILocation(line: 8, column: 16, scope: !6)
+!32 = !DILocation(line: 9, column: 8, scope: !33)
+!33 = distinct !DILexicalBlock(scope: !6, file: !1, line: 9, column: 8)
+!34 = !DILocation(line: 9, column: 14, scope: !33)
+!35 = !DILocation(line: 9, column: 8, scope: !6)
+!36 = !DILocalVariable(name: "s", scope: !37, file: !1, line: 10, type: !4)
+!37 = distinct !DILexicalBlock(scope: !33, file: !1, line: 9, column: 21)
+!38 = !DILocation(line: 10, column: 13, scope: !37)
+!39 = !DILocation(line: 10, column: 34, scope: !37)
+!40 = !DILocation(line: 10, column: 29, scope: !37)
+!41 = !DILocation(line: 10, column: 27, scope: !37)
+!42 = !DILocalVariable(name: "u", scope: !43, file: !1, line: 11, type: !9)
+!43 = distinct !DILexicalBlock(scope: !37, file: !1, line: 11, column: 6)
+!44 = !DILocation(line: 11, column: 15, scope: !43)
+!45 = !DILocation(line: 11, column: 11, scope: !43)
+!46 = !DILocation(line: 11, column: 22, scope: !47)
+!47 = distinct !DILexicalBlock(scope: !43, file: !1, line: 11, column: 6)
+!48 = !DILocation(line: 11, column: 26, scope: !47)
+!49 = !DILocation(line: 11, column: 24, scope: !47)
+!50 = !DILocation(line: 11, column: 6, scope: !43)
+!51 = !DILocalVariable(name: "x", scope: !52, file: !1, line: 12, type: !4)
+!52 = distinct !DILexicalBlock(scope: !47, file: !1, line: 11, column: 38)
+!53 = !DILocation(line: 12, column: 15, scope: !52)
+!54 = !DILocation(line: 12, column: 19, scope: !52)
+!55 = !DILocation(line: 13, column: 12, scope: !52)
+!56 = !DILocation(line: 13, column: 14, scope: !52)
+!57 = !DILocation(line: 13, column: 32, scope: !52)
+!58 = !DILocation(line: 13, column: 22, scope: !52)
+!59 = !DILocation(line: 13, column: 10, scope: !52)
+!60 = !DILocation(line: 14, column: 13, scope: !52)
+!61 = !DILocation(line: 14, column: 24, scope: !52)
+!62 = !DILocation(line: 14, column: 22, scope: !52)
+!63 = !DILocation(line: 14, column: 26, scope: !52)
+!64 = !DILocation(line: 14, column: 15, scope: !52)
+!65 = !DILocation(line: 14, column: 10, scope: !52)
+!66 = !DILocation(line: 15, column: 6, scope: !52)
+!67 = !DILocation(line: 11, column: 34, scope: !47)
+!68 = !DILocation(line: 11, column: 6, scope: !47)
+!69 = !DILocation(line: 16, column: 15, scope: !37)
+!70 = !DILocation(line: 16, column: 13, scope: !37)
+!71 = !DILocation(line: 17, column: 4, scope: !37)
+!72 = !DILocation(line: 18, column: 20, scope: !73)
+!73 = distinct !DILexicalBlock(scope: !33, file: !1, line: 17, column: 11)
+!74 = !DILocation(line: 18, column: 15, scope: !73)
+!75 = !DILocation(line: 18, column: 13, scope: !73)
+!76 = !DILocation(line: 20, column: 30, scope: !6)
+!77 = !DILocation(line: 20, column: 4, scope: !6)
+!78 = !DILocation(line: 21, column: 4, scope: !6)
+!79 = !DILocation(line: 22, column: 2, scope: !6)
projects / oota-llvm.git / blobdiff