| ; RUN: llc < %s -prefetch-hints-file=%S/insert-prefetch.afdo | FileCheck %s |
| ; RUN: llc < %s -prefetch-hints-file=%S/insert-prefetch-other.afdo | FileCheck %s -check-prefix=OTHERS |
| ; |
| ; original source, compiled with -O3 -gmlt -fdebug-info-for-profiling: |
| ; int sum(int* arr, int pos1, int pos2) { |
| ; return arr[pos1] + arr[pos2]; |
| ; } |
| ; |
| ; NOTE: debug line numbers were adjusted such that the function would start |
| ; at line 15 (an arbitrary number). The sample profile file format uses |
| ; offsets from the start of the symbol instead of file-relative line numbers. |
| ; The .afdo file reflects that - the instructions are offset '1'. |
| ; |
| ; ModuleID = 'test.cc' |
| source_filename = "test.cc" |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define i32 @sum(i32* %arr, i32 %pos1, i32 %pos2) !dbg !35 !prof !37 { |
| entry: |
| %idxprom = sext i32 %pos1 to i64, !dbg !38 |
| %arrayidx = getelementptr inbounds i32, i32* %arr, i64 %idxprom, !dbg !38 |
| %0 = load i32, i32* %arrayidx, align 4, !dbg !38, !tbaa !39 |
| %idxprom1 = sext i32 %pos2 to i64, !dbg !43 |
| %arrayidx2 = getelementptr inbounds i32, i32* %arr, i64 %idxprom1, !dbg !43 |
| %1 = load i32, i32* %arrayidx2, align 4, !dbg !43, !tbaa !39 |
| %add = add nsw i32 %1, %0, !dbg !44 |
| ret i32 %add, !dbg !45 |
| } |
| |
| attributes #0 = { "target-cpu"="x86-64" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!33} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, debugInfoForProfiling: true) |
| !1 = !DIFile(filename: "test.cc", directory: "/tmp") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{i32 1, !"ProfileSummary", !7} |
| !7 = !{!8, !9, !10, !11, !12, !13, !14, !15} |
| !8 = !{!"ProfileFormat", !"SampleProfile"} |
| !9 = !{!"TotalCount", i64 0} |
| !10 = !{!"MaxCount", i64 0} |
| !11 = !{!"MaxInternalCount", i64 0} |
| !12 = !{!"MaxFunctionCount", i64 0} |
| !13 = !{!"NumCounts", i64 2} |
| !14 = !{!"NumFunctions", i64 1} |
| !15 = !{!"DetailedSummary", !16} |
| !16 = !{!17, !18, !19, !20, !21, !22, !22, !23, !23, !24, !25, !26, !27, !28, !29, !30, !31, !32} |
| !17 = !{i32 10000, i64 0, i32 0} |
| !18 = !{i32 100000, i64 0, i32 0} |
| !19 = !{i32 200000, i64 0, i32 0} |
| !20 = !{i32 300000, i64 0, i32 0} |
| !21 = !{i32 400000, i64 0, i32 0} |
| !22 = !{i32 500000, i64 0, i32 0} |
| !23 = !{i32 600000, i64 0, i32 0} |
| !24 = !{i32 700000, i64 0, i32 0} |
| !25 = !{i32 800000, i64 0, i32 0} |
| !26 = !{i32 900000, i64 0, i32 0} |
| !27 = !{i32 950000, i64 0, i32 0} |
| !28 = !{i32 990000, i64 0, i32 0} |
| !29 = !{i32 999000, i64 0, i32 0} |
| !30 = !{i32 999900, i64 0, i32 0} |
| !31 = !{i32 999990, i64 0, i32 0} |
| !32 = !{i32 999999, i64 0, i32 0} |
| !33 = !{!"clang version 7.0.0 (trunk 322593) (llvm/trunk 322526)"} |
| !35 = distinct !DISubprogram(name: "sum", linkageName: "sum", scope: !1, file: !1, line: 15, type: !36, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: true, unit: !0) |
| !36 = !DISubroutineType(types: !2) |
| !37 = !{!"function_entry_count", i64 -1} |
| !38 = !DILocation(line: 16, column: 10, scope: !35) |
| !39 = !{!40, !40, i64 0} |
| !40 = !{!"int", !41, i64 0} |
| !41 = !{!"omnipotent char", !42, i64 0} |
| !42 = !{!"Simple C++ TBAA"} |
| !43 = !DILocation(line: 16, column: 22, scope: !35) |
| !44 = !DILocation(line: 16, column: 20, scope: !35) |
| !45 = !DILocation(line: 16, column: 3, scope: !35) |
| |
| ;CHECK-LABEL: sum: |
| ;CHECK: # %bb.0: |
| ;CHECK: prefetchnta 42(%rdi,%rax,4) |
| ;CHECK-NEXT: prefetchnta (%rdi,%rax,4) |
| ;CHECK-NEXT: movl (%rdi,%rax,4), %eax |
| ;CHECK-NEXT: .loc 1 16 20 discriminator 2 # test.cc:16:20 |
| ;CHECK-NEXT: prefetchnta -1(%rdi,%rcx,4) |
| ;CHECK-NEXT: addl (%rdi,%rcx,4), %eax |
| ;CHECK-NEXT: .loc 1 16 3 # test.cc:16:3 |
| |
| ;OTHERS-LABEL: sum: |
| ;OTHERS: # %bb.0: |
| ;OTHERS: prefetcht2 42(%rdi,%rax,4) |
| ;OTHERS-NEXT: prefetcht0 (%rdi,%rax,4) |
| ;OTHERS-NEXT: movl (%rdi,%rax,4), %eax |
| ;OTHERS-NEXT: .loc 1 16 20 discriminator 2 # test.cc:16:20 |
| ;OTHERS-NEXT: prefetcht1 -1(%rdi,%rcx,4) |
| ;OTHERS-NEXT: addl (%rdi,%rcx,4), %eax |
| ;OTHERS-NEXT: .loc 1 16 3 # test.cc:16:3 |