derek.holloway
7502bf64a4
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100 lines
2.4 KiB
LLVM
100 lines
2.4 KiB
LLVM
;; IR + Profile to split machine functions with -fsplit-machine-functions
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;; Source used to generate this file
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;; int k;
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;; int baz() {
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;; return 0;
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;; }
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;;
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;; int bar() {
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;; return 0;
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;; }
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;;
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;; int foo() {
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;; if (k)
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;; baz();
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;; else
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;; bar();
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;; return 0;
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;; }
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;;
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;; int main() {
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;; foo();
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;; return 0;
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;; }
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;; Commands:
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;; clang -fprofile-generate -O0 source.cc
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;; ./a.out && llvm-profdata merge -o default.profdata *.profraw
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;; clang -fprofile-use -O0 source.cc -emit-llvm -S
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target triple = "x86_64-unknown-linux-gnu"
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@k = dso_local global i32 0, align 4
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define dso_local i32 @_Z3bazv() !prof !31 {
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ret i32 0
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}
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define dso_local i32 @_Z3barv() !prof !32 {
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ret i32 0
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}
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define dso_local i32 @_Z3foov() !prof !32 {
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%1 = load i32, i32* @k, align 4
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%2 = icmp ne i32 %1, 0
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br i1 %2, label %3, label %5, !prof !33
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3: ; preds = %0
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%4 = call i32 @_Z3bazv()
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br label %7
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5: ; preds = %0
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%6 = call i32 @_Z3barv()
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br label %7
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7: ; preds = %5, %3
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ret i32 0
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}
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define dso_local i32 @main() !prof !32 {
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%1 = call i32 @_Z3foov()
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ret i32 0
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}
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!llvm.module.flags = !{!0, !1}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 1, !"ProfileSummary", !2}
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!2 = !{!3, !4, !5, !6, !7, !8, !9, !10, !11, !12}
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!3 = !{!"ProfileFormat", !"InstrProf"}
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!4 = !{!"TotalCount", i64 3}
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!5 = !{!"MaxCount", i64 1}
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!6 = !{!"MaxInternalCount", i64 1}
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!7 = !{!"MaxFunctionCount", i64 1}
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!8 = !{!"NumCounts", i64 5}
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!9 = !{!"NumFunctions", i64 4}
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!10 = !{!"IsPartialProfile", i64 0}
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!11 = !{!"PartialProfileRatio", double 0.000000e+00}
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!12 = !{!"DetailedSummary", !13}
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!13 = !{!14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29}
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!14 = !{i32 10000, i64 0, i32 0}
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!15 = !{i32 100000, i64 0, i32 0}
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!16 = !{i32 200000, i64 0, i32 0}
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!17 = !{i32 300000, i64 0, i32 0}
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!18 = !{i32 400000, i64 1, i32 3}
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!19 = !{i32 500000, i64 1, i32 3}
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!20 = !{i32 600000, i64 1, i32 3}
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!21 = !{i32 700000, i64 1, i32 3}
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!22 = !{i32 800000, i64 1, i32 3}
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!23 = !{i32 900000, i64 1, i32 3}
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!24 = !{i32 950000, i64 1, i32 3}
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!25 = !{i32 990000, i64 1, i32 3}
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!26 = !{i32 999000, i64 1, i32 3}
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!27 = !{i32 999900, i64 1, i32 3}
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!28 = !{i32 999990, i64 1, i32 3}
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!29 = !{i32 999999, i64 1, i32 3}
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!31 = !{!"function_entry_count", i64 0}
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!32 = !{!"function_entry_count", i64 1}
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!33 = !{!"branch_weights", i32 1, i32 0}
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