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1; When optimising for size, we don't want to rewrite fputs to fwrite2; because it requires more arguments and thus extra MOVs are required.3;4; RUN: opt < %s -passes=instcombine -S | FileCheck %s5; RUN: opt < %s -passes='require<profile-summary>,function(instcombine)' -pgso -S | FileCheck %s -check-prefix=PGSO6; RUN: opt < %s -passes=instcombine -pgso=false -S | FileCheck %s -check-prefix=NPGSO7 8%struct._IO_FILE = type { i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, i32, i16, i8, [1 x i8], ptr, i64, ptr, ptr, ptr, ptr, i32, i32, [40 x i8] }9%struct._IO_marker = type { ptr, ptr, i32 }10 11@.str = private unnamed_addr constant [10 x i8] c"mylog.txt\00", align 112@.str.1 = private unnamed_addr constant [2 x i8] c"a\00", align 113@.str.2 = private unnamed_addr constant [27 x i8] c"Hello world this is a test\00", align 114 15define i32 @main() local_unnamed_addr #0 {16entry:17; CHECK-LABEL: @main(18; CHECK-NOT: call i64 @fwrite19; CHECK: call i32 @fputs20 21 %call = tail call ptr @fopen(ptr @.str, ptr @.str.1) #222 %call1 = tail call i32 @fputs(ptr @.str.2, ptr %call) #223 ret i32 024}25 26declare noalias ptr @fopen(ptr nocapture readonly, ptr nocapture readonly) local_unnamed_addr #127declare i32 @fputs(ptr nocapture readonly, ptr nocapture) local_unnamed_addr #128 29attributes #0 = { nounwind optsize }30attributes #1 = { nounwind optsize }31 32define i32 @main_pgso() local_unnamed_addr !prof !14 {33entry:34; PGSO-LABEL: @main_pgso(35; PGSO-NOT: call i64 @fwrite36; PGSO: call i32 @fputs37; NPGSO-LABEL: @main_pgso(38; NPGSO: call i64 @fwrite39; NPGSO-NOT: call i32 @fputs40 41 %call = tail call ptr @fopen(ptr @.str, ptr @.str.1) #242 %call1 = tail call i32 @fputs(ptr @.str.2, ptr %call) #243 ret i32 044}45 46!llvm.module.flags = !{!0}47!0 = !{i32 1, !"ProfileSummary", !1}48!1 = !{!2, !3, !4, !5, !6, !7, !8, !9}49!2 = !{!"ProfileFormat", !"InstrProf"}50!3 = !{!"TotalCount", i64 10000}51!4 = !{!"MaxCount", i64 10}52!5 = !{!"MaxInternalCount", i64 1}53!6 = !{!"MaxFunctionCount", i64 1000}54!7 = !{!"NumCounts", i64 3}55!8 = !{!"NumFunctions", i64 3}56!9 = !{!"DetailedSummary", !10}57!10 = !{!11, !12, !13}58!11 = !{i32 10000, i64 100, i32 1}59!12 = !{i32 999000, i64 100, i32 1}60!13 = !{i32 999999, i64 1, i32 2}61!14 = !{!"function_entry_count", i64 0}62