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1;; IR + Profile to split machine functions with -fsplit-machine-functions2;; Source used to generate this file3;; int k;4 5;; int baz() {6;; return 0;7;; }8;;9;; int bar() {10;; return 0;11;; }12;;13;; int foo() {14;; if (k)15;; baz();16;; else17;; bar();18;; return 0;19;; }20;;21;; int main() {22;; foo();23;; return 0;24;; }25 26;; Commands:27;; clang -fprofile-generate -O0 source.cc28;; ./a.out && llvm-profdata merge -o default.profdata *.profraw29;; clang -fprofile-use -O0 source.cc -emit-llvm -S30 31target triple = "x86_64-unknown-linux-gnu"32 33@k = dso_local global i32 0, align 434 35define dso_local i32 @_Z3bazv() !prof !31 {36 ret i32 037}38 39define dso_local i32 @_Z3barv() !prof !32 {40 ret i32 041}42 43define dso_local i32 @_Z3foov() !prof !32 {44 %1 = load i32, i32* @k, align 445 %2 = icmp ne i32 %1, 046 br i1 %2, label %3, label %5, !prof !3347 483: ; preds = %049 %4 = call i32 @_Z3bazv()50 br label %751 525: ; preds = %053 %6 = call i32 @_Z3barv()54 br label %755 567: ; preds = %5, %357 ret i32 058}59 60define dso_local i32 @main() !prof !32 {61 %1 = call i32 @_Z3foov()62 ret i32 063}64 65!llvm.module.flags = !{!0, !1}66 67!0 = !{i32 1, !"wchar_size", i32 4}68!1 = !{i32 1, !"ProfileSummary", !2}69!2 = !{!3, !4, !5, !6, !7, !8, !9, !10, !11, !12}70!3 = !{!"ProfileFormat", !"InstrProf"}71!4 = !{!"TotalCount", i64 3}72!5 = !{!"MaxCount", i64 1}73!6 = !{!"MaxInternalCount", i64 1}74!7 = !{!"MaxFunctionCount", i64 1}75!8 = !{!"NumCounts", i64 5}76!9 = !{!"NumFunctions", i64 4}77!10 = !{!"IsPartialProfile", i64 0}78!11 = !{!"PartialProfileRatio", double 0.000000e+00}79!12 = !{!"DetailedSummary", !13}80!13 = !{!14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29}81!14 = !{i32 10000, i64 0, i32 0}82!15 = !{i32 100000, i64 0, i32 0}83!16 = !{i32 200000, i64 0, i32 0}84!17 = !{i32 300000, i64 0, i32 0}85!18 = !{i32 400000, i64 1, i32 3}86!19 = !{i32 500000, i64 1, i32 3}87!20 = !{i32 600000, i64 1, i32 3}88!21 = !{i32 700000, i64 1, i32 3}89!22 = !{i32 800000, i64 1, i32 3}90!23 = !{i32 900000, i64 1, i32 3}91!24 = !{i32 950000, i64 1, i32 3}92!25 = !{i32 990000, i64 1, i32 3}93!26 = !{i32 999000, i64 1, i32 3}94!27 = !{i32 999900, i64 1, i32 3}95!28 = !{i32 999990, i64 1, i32 3}96!29 = !{i32 999999, i64 1, i32 3}97!31 = !{!"function_entry_count", i64 0}98!32 = !{!"function_entry_count", i64 1}99!33 = !{!"branch_weights", i32 1, i32 0}100