| ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-profile.prof -pass-remarks=sample-profile -S | FileCheck %s |
| ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-profile.prof -pass-remarks=sample-profile -overwrite-existing-weights=1 -S | FileCheck %s -check-prefix=OVW |
| |
| define dso_local i32 @foo(i32 %x, void (i32)* %f) #0 !dbg !4 !prof !10 { |
| entry: |
| %retval = alloca i32, align 4 |
| %x.addr = alloca i32, align 4 |
| store i32 %x, i32* %x.addr, align 4 |
| %0 = load i32, i32* %x.addr, align 4 |
| %cmp = icmp eq i32 %0, 0 |
| call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1) |
| br i1 %cmp, label %if.then, label %if.else, !prof !11 |
| |
| if.then: |
| call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1) |
| ; CHECK: call {{.*}}, !dbg ![[#]], !prof ![[#PROF:]] |
| ; OVW: call {{.*}}, !dbg ![[#]], !prof ![[#PROF:]] |
| call void %f(i32 1), !dbg !13, !prof !16 |
| store i32 1, i32* %retval, align 4 |
| br label %return |
| |
| if.else: |
| call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 0) |
| ; CHECK: call {{.*}}, !dbg ![[#]], !prof ![[#PROF]] |
| ;; The block should have a 0 weight. Check the profile metadata is dropped. |
| ; OVW-NOT: call {{.*}}, !dbg ![[#]], !prof |
| call void %f(i32 2), !dbg !15, !prof !16 |
| store i32 2, i32* %retval, align 4 |
| br label %return |
| |
| return: |
| call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 -1) |
| %1 = load i32, i32* %retval, align 4 |
| ret i32 %1 |
| } |
| |
| ; CHECK: ![[#PROF]] = !{!"VP", i32 0, i64 7, i64 9191153033785521275, i64 5, i64 -1069303473483922844, i64 2} |
| ; OVW: ![[#PROF]] = !{!"VP", i32 0, i64 7, i64 9191153033785521275, i64 5, i64 -1069303473483922844, i64 2} |
| |
| declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0 |
| |
| attributes #0 = {"use-sample-profile"} |
| |
| !llvm.module.flags = !{!0, !1} |
| !llvm.pseudo_probe_desc = !{!2} |
| |
| !0 = !{i32 7, !"Dwarf Version", i32 4} |
| !1 = !{i32 2, !"Debug Info Version", i32 3} |
| !2 = !{i64 6699318081062747564, i64 563022570642068, !"foo", null} |
| !4 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 9, type: !6, scopeLine: 9, spFlags: DISPFlagDefinition, unit: !9) |
| !5 = !DIFile(filename: "test.cpp", directory: "test") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{!8, !8} |
| !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !5, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug) |
| !10 = !{!"function_entry_count", i64 14} |
| !11 = !{!"branch_weights", i32 100, i32 0} |
| ;; A discriminator of 186646575 which is 0x6f80057 in hexdecimal, stands for an indirect call probe |
| ;; with an index of 5 and probe factor of 1.0. |
| !12 = !DILexicalBlockFile(scope: !4, file: !5, discriminator: 186646575) |
| !13 = distinct !DILocation(line: 10, column: 11, scope: !12) |
| ;; A discriminator of 134217775 which is 0x6f80057 in hexdecimal, stands for an indirect call probe |
| ;; with an index of 5 and probe factor of 0. |
| !14 = !DILexicalBlockFile(scope: !4, file: !5, discriminator: 134217775) |
| !15 = distinct !DILocation(line: 10, column: 11, scope: !14) |
| !16 = !{!"VP", i32 0, i64 7, i64 9191153033785521275, i64 5, i64 -1069303473483922844, i64 2} |
| |