;; IR + Profile to split machine functions with -fsplit-machine-functions ;; Source used to generate this file ;; int k; ;; int baz() { ;; return 0; ;; } ;; ;; int bar() { ;; return 0; ;; } ;; ;; int foo() { ;; if (k) ;; baz(); ;; else ;; bar(); ;; return 0; ;; } ;; ;; int main() { ;; foo(); ;; return 0; ;; } ;; Commands: ;; clang -fprofile-generate -O0 source.cc ;; ./a.out && llvm-profdata merge -o default.profdata *.profraw ;; clang -fprofile-use -O0 source.cc -emit-llvm -S target triple = "x86_64-unknown-linux-gnu" @k = dso_local global i32 0, align 4 define dso_local i32 @_Z3bazv() !prof !31 { ret i32 0 } define dso_local i32 @_Z3barv() !prof !32 { ret i32 0 } define dso_local i32 @_Z3foov() !prof !32 { %1 = load i32, i32* @k, align 4 %2 = icmp ne i32 %1, 0 br i1 %2, label %3, label %5, !prof !33 3: ; preds = %0 %4 = call i32 @_Z3bazv() br label %7 5: ; preds = %0 %6 = call i32 @_Z3barv() br label %7 7: ; preds = %5, %3 ret i32 0 } define dso_local i32 @main() !prof !32 { %1 = call i32 @_Z3foov() ret i32 0 } !llvm.module.flags = !{!0, !1} !0 = !{i32 1, !"wchar_size", i32 4} !1 = !{i32 1, !"ProfileSummary", !2} !2 = !{!3, !4, !5, !6, !7, !8, !9, !10, !11, !12} !3 = !{!"ProfileFormat", !"InstrProf"} !4 = !{!"TotalCount", i64 3} !5 = !{!"MaxCount", i64 1} !6 = !{!"MaxInternalCount", i64 1} !7 = !{!"MaxFunctionCount", i64 1} !8 = !{!"NumCounts", i64 5} !9 = !{!"NumFunctions", i64 4} !10 = !{!"IsPartialProfile", i64 0} !11 = !{!"PartialProfileRatio", double 0.000000e+00} !12 = !{!"DetailedSummary", !13} !13 = !{!14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29} !14 = !{i32 10000, i64 0, i32 0} !15 = !{i32 100000, i64 0, i32 0} !16 = !{i32 200000, i64 0, i32 0} !17 = !{i32 300000, i64 0, i32 0} !18 = !{i32 400000, i64 1, i32 3} !19 = !{i32 500000, i64 1, i32 3} !20 = !{i32 600000, i64 1, i32 3} !21 = !{i32 700000, i64 1, i32 3} !22 = !{i32 800000, i64 1, i32 3} !23 = !{i32 900000, i64 1, i32 3} !24 = !{i32 950000, i64 1, i32 3} !25 = !{i32 990000, i64 1, i32 3} !26 = !{i32 999000, i64 1, i32 3} !27 = !{i32 999900, i64 1, i32 3} !28 = !{i32 999990, i64 1, i32 3} !29 = !{i32 999999, i64 1, i32 3} !31 = !{!"function_entry_count", i64 0} !32 = !{!"function_entry_count", i64 1} !33 = !{!"branch_weights", i32 1, i32 0}