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|
;; Tests memprof profile matching (with and without instrumentation profiles).
;; Several requirements due to using raw profile inputs:
;; PGO profile uses zlib compression
; REQUIRES: zlib
;; Avoid failures on big-endian systems that can't read the profile properly
; REQUIRES: x86_64-linux
;; TODO: Use text profile inputs once that is available for memprof.
;; The input IR and raw profiles have been generated from the following source:
;;
;; #include <stdlib.h>
;; #include <string.h>
;; #include <unistd.h>
;; char *foo() {
;; return new char[10];
;; }
;; char *foo2() {
;; return foo();
;; }
;; char *bar() {
;; return foo2();
;; }
;; char *baz() {
;; return foo2();
;; }
;; char *recurse(unsigned n) {
;; if (!n)
;; return foo();
;; return recurse(n-1);
;; }
;; int main(int argc, char **argv) {
;; // Test allocations with different combinations of stack contexts and
;; // coldness (based on lifetime, since they are all accessed a single time
;; // per byte via the memset).
;; char *a = new char[10];
;; char *b = new char[10];
;; char *c = foo();
;; char *d = foo();
;; char *e = bar();
;; char *f = baz();
;; memset(a, 0, 10);
;; memset(b, 0, 10);
;; memset(c, 0, 10);
;; memset(d, 0, 10);
;; memset(e, 0, 10);
;; memset(f, 0, 10);
;; // a and c have short lifetimes
;; delete[] a;
;; delete[] c;
;; // b, d, e, and f have long lifetimes and will be detected as cold by default.
;; sleep(200);
;; delete[] b;
;; delete[] d;
;; delete[] e;
;; delete[] f;
;; // Loop ensures the two calls to recurse have stack contexts that only differ
;; // in one level of recursion. We should get two stack contexts reflecting the
;; // different levels of recursion and different allocation behavior (since the
;; // first has a very long lifetime and the second has a short lifetime).
;; for (unsigned i = 0; i < 2; i++) {
;; char *g = recurse(i + 3);
;; memset(g, 0, 10);
;; if (!i)
;; sleep(200);
;; delete[] g;
;; }
;; return 0;
;; }
;;
;; The following commands were used to compile the source to instrumented
;; executables and collect raw binary format profiles:
;;
;; # Collect memory profile:
;; $ clang++ -fuse-ld=lld -no-pie -Wl,--no-rosegment -gmlt \
;; -fdebug-info-for-profiling -mno-omit-leaf-frame-pointer \
;; -fno-omit-frame-pointer -fno-optimize-sibling-calls -m64 -Wl,-build-id \
;; memprof.cc -o memprof.exe -fmemory-profile
;; $ env MEMPROF_OPTIONS=log_path=stdout ./memprof.exe > memprof.memprofraw
;;
;; # Collect IR PGO profile:
;; $ clang++ -fuse-ld=lld -no-pie -Wl,--no-rosegment -gmlt \
;; -fdebug-info-for-profiling -mno-omit-leaf-frame-pointer \
;; -fno-omit-frame-pointer -fno-optimize-sibling-calls -m64 -Wl,-build-id \
;; memprof.cc -o pgo.exe -fprofile-generate=.
;; $ ./pgo.exe
;; $ mv default_*.profraw memprof_pgo.profraw
;;
;; # Generate below LLVM IR for use in matching:
;; $ clang++ -gmlt -fdebug-info-for-profiling -fno-omit-frame-pointer \
;; -fno-optimize-sibling-calls memprof.cc -S -emit-llvm
;; Generate indexed profiles of all combinations:
; RUN: llvm-profdata merge %S/Inputs/memprof.memprofraw --profiled-binary %S/Inputs/memprof.exe -o %t.memprofdata
; RUN: llvm-profdata merge %S/Inputs/memprof_pgo.profraw %S/Inputs/memprof.memprofraw --profiled-binary %S/Inputs/memprof.exe -o %t.pgomemprofdata
; RUN: llvm-profdata merge %S/Inputs/memprof_pgo.profraw -o %t.pgoprofdata
;; In all below cases we should not get any messages about missing profile data
;; for any functions. Either we are not performing any matching for a particular
;; profile type or we are performing the matching and it should be successful.
; ALL-NOT: memprof record not found for function hash
; ALL-NOT: no profile data available for function
;; Feed back memprof-only profile
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.memprofdata -pgo-warn-missing-function -S 2>&1 | FileCheck %s --check-prefixes=MEMPROF,ALL,MEMPROFONLY
; There should not be any PGO metadata
; MEMPROFONLY-NOT: !prof
;; Feed back pgo-only profile
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.pgoprofdata -pgo-warn-missing-function -S 2>&1 | FileCheck %s --check-prefixes=PGO,ALL,PGOONLY
; There should not be any memprof related metadata
; PGOONLY-NOT: !memprof
; PGOONLY-NOT: !callsite
;; Feed back pgo+memprof-only profile
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.pgomemprofdata -pgo-warn-missing-function -S 2>&1 | FileCheck %s --check-prefixes=MEMPROF,PGO,ALL
; ModuleID = 'memprof.cc'
source_filename = "memprof.cc"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Function Attrs: mustprogress noinline optnone uwtable
; ALL-LABEL: define dso_local noundef ptr @_Z3foov()
; There should be some PGO metadata
; PGO: !prof
define dso_local noundef ptr @_Z3foov() #0 !dbg !10 {
entry:
; MEMPROF: call {{.*}} @_Znam{{.*}} !memprof ![[M1:[0-9]+]], !callsite ![[C1:[0-9]+]]
%call = call noalias noundef nonnull ptr @_Znam(i64 noundef 10) #6, !dbg !13
ret ptr %call, !dbg !14
}
; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #1
; Function Attrs: mustprogress noinline optnone uwtable
; ALL-LABEL: define dso_local noundef ptr @_Z4foo2v()
define dso_local noundef ptr @_Z4foo2v() #0 !dbg !15 {
entry:
; MEMPROF: call {{.*}} @_Z3foov{{.*}} !callsite ![[C2:[0-9]+]]
%call = call noundef ptr @_Z3foov(), !dbg !16
ret ptr %call, !dbg !17
}
; Function Attrs: mustprogress noinline optnone uwtable
define dso_local noundef ptr @_Z3barv() #0 !dbg !18 {
entry:
; MEMPROF: call {{.*}} @_Z4foo2v{{.*}} !callsite ![[C3:[0-9]+]]
%call = call noundef ptr @_Z4foo2v(), !dbg !19
ret ptr %call, !dbg !20
}
; Function Attrs: mustprogress noinline optnone uwtable
define dso_local noundef ptr @_Z3bazv() #0 !dbg !21 {
entry:
; MEMPROF: call {{.*}} @_Z4foo2v{{.*}} !callsite ![[C4:[0-9]+]]
%call = call noundef ptr @_Z4foo2v(), !dbg !22
ret ptr %call, !dbg !23
}
; Function Attrs: mustprogress noinline optnone uwtable
define dso_local noundef ptr @_Z7recursej(i32 noundef %n) #0 !dbg !24 {
entry:
%retval = alloca ptr, align 8
%n.addr = alloca i32, align 4
store i32 %n, ptr %n.addr, align 4
%0 = load i32, ptr %n.addr, align 4, !dbg !25
%tobool = icmp ne i32 %0, 0, !dbg !25
br i1 %tobool, label %if.end, label %if.then, !dbg !26
if.then: ; preds = %entry
; MEMPROF: call {{.*}} @_Z3foov{{.*}} !callsite ![[C5:[0-9]+]]
%call = call noundef ptr @_Z3foov(), !dbg !27
store ptr %call, ptr %retval, align 8, !dbg !28
br label %return, !dbg !28
if.end: ; preds = %entry
%1 = load i32, ptr %n.addr, align 4, !dbg !29
%sub = sub i32 %1, 1, !dbg !30
; MEMPROF: call {{.*}} @_Z7recursej{{.*}} !callsite ![[C6:[0-9]+]]
%call1 = call noundef ptr @_Z7recursej(i32 noundef %sub), !dbg !31
store ptr %call1, ptr %retval, align 8, !dbg !32
br label %return, !dbg !32
return: ; preds = %if.end, %if.then
%2 = load ptr, ptr %retval, align 8, !dbg !33
ret ptr %2, !dbg !33
}
; Function Attrs: mustprogress noinline norecurse optnone uwtable
define dso_local noundef i32 @main(i32 noundef %argc, ptr noundef %argv) #2 !dbg !34 {
entry:
%retval = alloca i32, align 4
%argc.addr = alloca i32, align 4
%argv.addr = alloca ptr, align 8
%a = alloca ptr, align 8
%b = alloca ptr, align 8
%c = alloca ptr, align 8
%d = alloca ptr, align 8
%e = alloca ptr, align 8
%f = alloca ptr, align 8
%i = alloca i32, align 4
%g = alloca ptr, align 8
store i32 0, ptr %retval, align 4
store i32 %argc, ptr %argc.addr, align 4
store ptr %argv, ptr %argv.addr, align 8
; MEMPROF: call {{.*}} @_Znam{{.*}} #[[A1:[0-9]+]]
%call = call noalias noundef nonnull ptr @_Znam(i64 noundef 10) #6, !dbg !35
store ptr %call, ptr %a, align 8, !dbg !36
; MEMPROF: call {{.*}} @_Znam{{.*}} #[[A2:[0-9]+]]
%call1 = call noalias noundef nonnull ptr @_Znam(i64 noundef 10) #6, !dbg !37
store ptr %call1, ptr %b, align 8, !dbg !38
; MEMPROF: call {{.*}} @_Z3foov{{.*}} !callsite ![[C7:[0-9]+]]
%call2 = call noundef ptr @_Z3foov(), !dbg !39
store ptr %call2, ptr %c, align 8, !dbg !40
; MEMPROF: call {{.*}} @_Z3foov{{.*}} !callsite ![[C8:[0-9]+]]
%call3 = call noundef ptr @_Z3foov(), !dbg !41
store ptr %call3, ptr %d, align 8, !dbg !42
; MEMPROF: call {{.*}} @_Z3barv{{.*}} !callsite ![[C9:[0-9]+]]
%call4 = call noundef ptr @_Z3barv(), !dbg !43
store ptr %call4, ptr %e, align 8, !dbg !44
; MEMPROF: call {{.*}} @_Z3bazv{{.*}} !callsite ![[C10:[0-9]+]]
%call5 = call noundef ptr @_Z3bazv(), !dbg !45
store ptr %call5, ptr %f, align 8, !dbg !46
%0 = load ptr, ptr %a, align 8, !dbg !47
call void @llvm.memset.p0.i64(ptr align 1 %0, i8 0, i64 10, i1 false), !dbg !48
%1 = load ptr, ptr %b, align 8, !dbg !49
call void @llvm.memset.p0.i64(ptr align 1 %1, i8 0, i64 10, i1 false), !dbg !50
%2 = load ptr, ptr %c, align 8, !dbg !51
call void @llvm.memset.p0.i64(ptr align 1 %2, i8 0, i64 10, i1 false), !dbg !52
%3 = load ptr, ptr %d, align 8, !dbg !53
call void @llvm.memset.p0.i64(ptr align 1 %3, i8 0, i64 10, i1 false), !dbg !54
%4 = load ptr, ptr %e, align 8, !dbg !55
call void @llvm.memset.p0.i64(ptr align 1 %4, i8 0, i64 10, i1 false), !dbg !56
%5 = load ptr, ptr %f, align 8, !dbg !57
call void @llvm.memset.p0.i64(ptr align 1 %5, i8 0, i64 10, i1 false), !dbg !58
%6 = load ptr, ptr %a, align 8, !dbg !59
%isnull = icmp eq ptr %6, null, !dbg !60
br i1 %isnull, label %delete.end, label %delete.notnull, !dbg !60
delete.notnull: ; preds = %entry
call void @_ZdaPv(ptr noundef %6) #7, !dbg !61
br label %delete.end, !dbg !61
delete.end: ; preds = %delete.notnull, %entry
%7 = load ptr, ptr %c, align 8, !dbg !63
%isnull6 = icmp eq ptr %7, null, !dbg !64
br i1 %isnull6, label %delete.end8, label %delete.notnull7, !dbg !64
delete.notnull7: ; preds = %delete.end
call void @_ZdaPv(ptr noundef %7) #7, !dbg !65
br label %delete.end8, !dbg !65
delete.end8: ; preds = %delete.notnull7, %delete.end
%call9 = call i32 @sleep(i32 noundef 200), !dbg !66
%8 = load ptr, ptr %b, align 8, !dbg !67
%isnull10 = icmp eq ptr %8, null, !dbg !68
br i1 %isnull10, label %delete.end12, label %delete.notnull11, !dbg !68
delete.notnull11: ; preds = %delete.end8
call void @_ZdaPv(ptr noundef %8) #7, !dbg !69
br label %delete.end12, !dbg !69
delete.end12: ; preds = %delete.notnull11, %delete.end8
%9 = load ptr, ptr %d, align 8, !dbg !70
%isnull13 = icmp eq ptr %9, null, !dbg !71
br i1 %isnull13, label %delete.end15, label %delete.notnull14, !dbg !71
delete.notnull14: ; preds = %delete.end12
call void @_ZdaPv(ptr noundef %9) #7, !dbg !72
br label %delete.end15, !dbg !72
delete.end15: ; preds = %delete.notnull14, %delete.end12
%10 = load ptr, ptr %e, align 8, !dbg !73
%isnull16 = icmp eq ptr %10, null, !dbg !74
br i1 %isnull16, label %delete.end18, label %delete.notnull17, !dbg !74
delete.notnull17: ; preds = %delete.end15
call void @_ZdaPv(ptr noundef %10) #7, !dbg !75
br label %delete.end18, !dbg !75
delete.end18: ; preds = %delete.notnull17, %delete.end15
%11 = load ptr, ptr %f, align 8, !dbg !76
%isnull19 = icmp eq ptr %11, null, !dbg !77
br i1 %isnull19, label %delete.end21, label %delete.notnull20, !dbg !77
delete.notnull20: ; preds = %delete.end18
call void @_ZdaPv(ptr noundef %11) #7, !dbg !78
br label %delete.end21, !dbg !78
delete.end21: ; preds = %delete.notnull20, %delete.end18
store i32 0, ptr %i, align 4, !dbg !79
br label %for.cond, !dbg !80
for.cond: ; preds = %for.inc, %delete.end21
%12 = load i32, ptr %i, align 4, !dbg !81
%cmp = icmp ult i32 %12, 2, !dbg !82
br i1 %cmp, label %for.body, label %for.end, !dbg !83
for.body: ; preds = %for.cond
%13 = load i32, ptr %i, align 4, !dbg !84
%add = add i32 %13, 3, !dbg !85
; MEMPROF: call {{.*}} @_Z7recursej{{.*}} !callsite ![[C11:[0-9]+]]
%call22 = call noundef ptr @_Z7recursej(i32 noundef %add), !dbg !86
store ptr %call22, ptr %g, align 8, !dbg !87
%14 = load ptr, ptr %g, align 8, !dbg !88
call void @llvm.memset.p0.i64(ptr align 1 %14, i8 0, i64 10, i1 false), !dbg !89
%15 = load i32, ptr %i, align 4, !dbg !90
%tobool = icmp ne i32 %15, 0, !dbg !90
br i1 %tobool, label %if.end, label %if.then, !dbg !91
if.then: ; preds = %for.body
%call23 = call i32 @sleep(i32 noundef 200), !dbg !92
br label %if.end, !dbg !92
if.end: ; preds = %if.then, %for.body
%16 = load ptr, ptr %g, align 8, !dbg !93
%isnull24 = icmp eq ptr %16, null, !dbg !94
br i1 %isnull24, label %delete.end26, label %delete.notnull25, !dbg !94
delete.notnull25: ; preds = %if.end
call void @_ZdaPv(ptr noundef %16) #7, !dbg !95
br label %delete.end26, !dbg !95
delete.end26: ; preds = %delete.notnull25, %if.end
br label %for.inc, !dbg !96
for.inc: ; preds = %delete.end26
%17 = load i32, ptr %i, align 4, !dbg !97
%inc = add i32 %17, 1, !dbg !97
store i32 %inc, ptr %i, align 4, !dbg !97
br label %for.cond, !dbg !99, !llvm.loop !100
for.end: ; preds = %for.cond
ret i32 0, !dbg !103
}
; MEMPROF: #[[A1]] = { builtin allocsize(0) "memprof"="notcold" }
; MEMPROF: #[[A2]] = { builtin allocsize(0) "memprof"="cold" }
; MEMPROF: ![[M1]] = !{![[MIB1:[0-9]+]], ![[MIB2:[0-9]+]], ![[MIB3:[0-9]+]], ![[MIB4:[0-9]+]], ![[MIB5:[0-9]+]]}
; MEMPROF: ![[MIB1]] = !{![[STACK1:[0-9]+]], !"cold"}
; MEMPROF: ![[STACK1]] = !{i64 2732490490862098848, i64 748269490701775343}
; MEMPROF: ![[MIB2]] = !{![[STACK2:[0-9]+]], !"cold"}
; MEMPROF: ![[STACK2]] = !{i64 2732490490862098848, i64 2104812325165620841, i64 6281715513834610934, i64 6281715513834610934, i64 6281715513834610934, i64 1544787832369987002}
; MEMPROF: ![[MIB3]] = !{![[STACK3:[0-9]+]], !"notcold"}
; MEMPROF: ![[STACK3]] = !{i64 2732490490862098848, i64 2104812325165620841, i64 6281715513834610934, i64 6281715513834610934, i64 6281715513834610934, i64 6281715513834610934}
; MEMPROF: ![[MIB4]] = !{![[STACK4:[0-9]+]], !"cold"}
; MEMPROF: ![[STACK4]] = !{i64 2732490490862098848, i64 8467819354083268568}
; MEMPROF: ![[MIB5]] = !{![[STACK5:[0-9]+]], !"notcold"}
; MEMPROF: ![[STACK5]] = !{i64 2732490490862098848, i64 8690657650969109624}
; MEMPROF: ![[C1]] = !{i64 2732490490862098848}
; MEMPROF: ![[C2]] = !{i64 8467819354083268568}
; MEMPROF: ![[C3]] = !{i64 9086428284934609951}
; MEMPROF: ![[C4]] = !{i64 -5964873800580613432}
; MEMPROF: ![[C5]] = !{i64 2104812325165620841}
; MEMPROF: ![[C6]] = !{i64 6281715513834610934}
; MEMPROF: ![[C7]] = !{i64 8690657650969109624}
; MEMPROF: ![[C8]] = !{i64 748269490701775343}
; MEMPROF: ![[C9]] = !{i64 -5747251260480066785}
; MEMPROF: ![[C10]] = !{i64 2061451396820446691}
; MEMPROF: ![[C11]] = !{i64 1544787832369987002}
; Function Attrs: argmemonly nofree nounwind willreturn writeonly
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3
; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #4
declare i32 @sleep(i32 noundef) #5
attributes #0 = { mustprogress noinline optnone uwtable "disable-tail-calls"="true" "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nobuiltin allocsize(0) "disable-tail-calls"="true" "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress noinline norecurse optnone uwtable "disable-tail-calls"="true" "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { argmemonly nofree nounwind willreturn writeonly }
attributes #4 = { nobuiltin nounwind "disable-tail-calls"="true" "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { "disable-tail-calls"="true" "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { builtin nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8}
!llvm.ident = !{!9}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 15.0.0 (https://github.com/llvm/llvm-project.git 6cbe6284d1f0a088b5c6482ae27b738f03d82fe7)", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
!1 = !DIFile(filename: "memprof.cc", directory: "/usr/local/google/home/tejohnson/llvm/tmp", checksumkind: CSK_MD5, checksum: "e8c40ebe4b21776b4d60e9632cbc13c2")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{i32 1, !"wchar_size", i32 4}
!5 = !{i32 7, !"PIC Level", i32 2}
!6 = !{i32 7, !"PIE Level", i32 2}
!7 = !{i32 7, !"uwtable", i32 2}
!8 = !{i32 7, !"frame-pointer", i32 2}
!9 = !{!"clang version 15.0.0 (https://github.com/llvm/llvm-project.git 6cbe6284d1f0a088b5c6482ae27b738f03d82fe7)"}
!10 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!11 = !DISubroutineType(types: !12)
!12 = !{}
!13 = !DILocation(line: 5, column: 10, scope: !10)
!14 = !DILocation(line: 5, column: 3, scope: !10)
!15 = distinct !DISubprogram(name: "foo2", linkageName: "_Z4foo2v", scope: !1, file: !1, line: 7, type: !11, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!16 = !DILocation(line: 8, column: 10, scope: !15)
!17 = !DILocation(line: 8, column: 3, scope: !15)
!18 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barv", scope: !1, file: !1, line: 10, type: !11, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!19 = !DILocation(line: 11, column: 10, scope: !18)
!20 = !DILocation(line: 11, column: 3, scope: !18)
!21 = distinct !DISubprogram(name: "baz", linkageName: "_Z3bazv", scope: !1, file: !1, line: 13, type: !11, scopeLine: 13, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!22 = !DILocation(line: 14, column: 10, scope: !21)
!23 = !DILocation(line: 14, column: 3, scope: !21)
!24 = distinct !DISubprogram(name: "recurse", linkageName: "_Z7recursej", scope: !1, file: !1, line: 16, type: !11, scopeLine: 16, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!25 = !DILocation(line: 17, column: 8, scope: !24)
!26 = !DILocation(line: 17, column: 7, scope: !24)
!27 = !DILocation(line: 18, column: 12, scope: !24)
!28 = !DILocation(line: 18, column: 5, scope: !24)
!29 = !DILocation(line: 19, column: 18, scope: !24)
!30 = !DILocation(line: 19, column: 19, scope: !24)
!31 = !DILocation(line: 19, column: 10, scope: !24)
!32 = !DILocation(line: 19, column: 3, scope: !24)
!33 = !DILocation(line: 20, column: 1, scope: !24)
!34 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 21, type: !11, scopeLine: 21, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12)
!35 = !DILocation(line: 25, column: 13, scope: !34)
!36 = !DILocation(line: 25, column: 9, scope: !34)
!37 = !DILocation(line: 26, column: 13, scope: !34)
!38 = !DILocation(line: 26, column: 9, scope: !34)
!39 = !DILocation(line: 27, column: 13, scope: !34)
!40 = !DILocation(line: 27, column: 9, scope: !34)
!41 = !DILocation(line: 28, column: 13, scope: !34)
!42 = !DILocation(line: 28, column: 9, scope: !34)
!43 = !DILocation(line: 29, column: 13, scope: !34)
!44 = !DILocation(line: 29, column: 9, scope: !34)
!45 = !DILocation(line: 30, column: 13, scope: !34)
!46 = !DILocation(line: 30, column: 9, scope: !34)
!47 = !DILocation(line: 31, column: 10, scope: !34)
!48 = !DILocation(line: 31, column: 3, scope: !34)
!49 = !DILocation(line: 32, column: 10, scope: !34)
!50 = !DILocation(line: 32, column: 3, scope: !34)
!51 = !DILocation(line: 33, column: 10, scope: !34)
!52 = !DILocation(line: 33, column: 3, scope: !34)
!53 = !DILocation(line: 34, column: 10, scope: !34)
!54 = !DILocation(line: 34, column: 3, scope: !34)
!55 = !DILocation(line: 35, column: 10, scope: !34)
!56 = !DILocation(line: 35, column: 3, scope: !34)
!57 = !DILocation(line: 36, column: 10, scope: !34)
!58 = !DILocation(line: 36, column: 3, scope: !34)
!59 = !DILocation(line: 38, column: 12, scope: !34)
!60 = !DILocation(line: 38, column: 3, scope: !34)
!61 = !DILocation(line: 38, column: 3, scope: !62)
!62 = !DILexicalBlockFile(scope: !34, file: !1, discriminator: 2)
!63 = !DILocation(line: 39, column: 12, scope: !34)
!64 = !DILocation(line: 39, column: 3, scope: !34)
!65 = !DILocation(line: 39, column: 3, scope: !62)
!66 = !DILocation(line: 41, column: 3, scope: !34)
!67 = !DILocation(line: 42, column: 12, scope: !34)
!68 = !DILocation(line: 42, column: 3, scope: !34)
!69 = !DILocation(line: 42, column: 3, scope: !62)
!70 = !DILocation(line: 43, column: 12, scope: !34)
!71 = !DILocation(line: 43, column: 3, scope: !34)
!72 = !DILocation(line: 43, column: 3, scope: !62)
!73 = !DILocation(line: 44, column: 12, scope: !34)
!74 = !DILocation(line: 44, column: 3, scope: !34)
!75 = !DILocation(line: 44, column: 3, scope: !62)
!76 = !DILocation(line: 45, column: 12, scope: !34)
!77 = !DILocation(line: 45, column: 3, scope: !34)
!78 = !DILocation(line: 45, column: 3, scope: !62)
!79 = !DILocation(line: 51, column: 17, scope: !34)
!80 = !DILocation(line: 51, column: 8, scope: !34)
!81 = !DILocation(line: 51, column: 24, scope: !62)
!82 = !DILocation(line: 51, column: 26, scope: !62)
!83 = !DILocation(line: 51, column: 3, scope: !62)
!84 = !DILocation(line: 52, column: 23, scope: !34)
!85 = !DILocation(line: 52, column: 25, scope: !34)
!86 = !DILocation(line: 52, column: 15, scope: !34)
!87 = !DILocation(line: 52, column: 11, scope: !34)
!88 = !DILocation(line: 53, column: 12, scope: !34)
!89 = !DILocation(line: 53, column: 5, scope: !34)
!90 = !DILocation(line: 54, column: 10, scope: !34)
!91 = !DILocation(line: 54, column: 9, scope: !34)
!92 = !DILocation(line: 55, column: 7, scope: !34)
!93 = !DILocation(line: 56, column: 14, scope: !34)
!94 = !DILocation(line: 56, column: 5, scope: !34)
!95 = !DILocation(line: 56, column: 5, scope: !62)
!96 = !DILocation(line: 57, column: 3, scope: !34)
!97 = !DILocation(line: 51, column: 32, scope: !98)
!98 = !DILexicalBlockFile(scope: !34, file: !1, discriminator: 4)
!99 = !DILocation(line: 51, column: 3, scope: !98)
!100 = distinct !{!100, !101, !96, !102}
!101 = !DILocation(line: 51, column: 3, scope: !34)
!102 = !{!"llvm.loop.mustprogress"}
!103 = !DILocation(line: 58, column: 3, scope: !34)
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