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