| ;; 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} |