1 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-profile.prof -pass-remarks=sample-profile -S | FileCheck %s
2 ; 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
4 define dso_local i32 @foo(i32 %x, ptr %f) #0 !dbg !4 !prof !10 {
6 %retval = alloca i32, align 4
7 %x.addr = alloca i32, align 4
8 store i32 %x, ptr %x.addr, align 4
9 %0 = load i32, ptr %x.addr, align 4
10 %cmp = icmp eq i32 %0, 0
11 call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1)
12 br i1 %cmp, label %if.then, label %if.else, !prof !11
15 call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1)
16 ; CHECK: call {{.*}}, !dbg ![[#]], !prof ![[#PROF:]]
17 ; OVW: call {{.*}}, !dbg ![[#]], !prof ![[#PROF:]]
18 call void %f(i32 1), !dbg !13, !prof !16
19 store i32 1, ptr %retval, align 4
23 call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 0)
24 ; CHECK: call {{.*}}, !dbg ![[#]], !prof ![[#PROF]]
25 ;; The block should have a 0 weight. Check the profile metadata is dropped.
26 ; OVW-NOT: call {{.*}}, !dbg ![[#]], !prof
27 call void %f(i32 2), !dbg !15, !prof !16
28 store i32 2, ptr %retval, align 4
32 call void @llvm.pseudoprobe(i64 6699318081062747564, i64 6, i32 0, i64 -1)
33 %1 = load i32, ptr %retval, align 4
37 ; CHECK: ![[#PROF]] = !{!"VP", i32 0, i64 7, i64 9191153033785521275, i64 5, i64 -1069303473483922844, i64 2}
38 ; OVW: ![[#PROF]] = !{!"VP", i32 0, i64 7, i64 9191153033785521275, i64 5, i64 -1069303473483922844, i64 2}
40 declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0
42 attributes #0 = {"use-sample-profile"}
44 !llvm.module.flags = !{!0, !1}
45 !llvm.pseudo_probe_desc = !{!2}
47 !0 = !{i32 7, !"Dwarf Version", i32 4}
48 !1 = !{i32 2, !"Debug Info Version", i32 3}
49 !2 = !{i64 6699318081062747564, i64 563022570642068, !"foo", null}
50 !4 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 9, type: !6, scopeLine: 9, spFlags: DISPFlagDefinition, unit: !9)
51 !5 = !DIFile(filename: "test.cpp", directory: "test")
52 !6 = !DISubroutineType(types: !7)
54 !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
55 !9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !5, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug)
56 !10 = !{!"function_entry_count", i64 14}
57 !11 = !{!"branch_weights", i32 100, i32 0}
58 ;; A discriminator of 186646559 which is 0xB20001F in hexdecimal, stands for an indirect call probe
59 ;; with an index of 3 and probe factor of 1.0.
60 !12 = !DILexicalBlockFile(scope: !4, file: !5, discriminator: 186646559)
61 !13 = distinct !DILocation(line: 10, column: 11, scope: !12)
62 ;; A discriminator of 134217759 which is 0x800001F in hexdecimal, stands for an indirect call probe
63 ;; with an index of 3 and probe factor of 0.
64 !14 = !DILexicalBlockFile(scope: !4, file: !5, discriminator: 134217759)
65 !15 = distinct !DILocation(line: 10, column: 11, scope: !14)
66 !16 = !{!"VP", i32 0, i64 7, i64 9191153033785521275, i64 5, i64 -1069303473483922844, i64 2}