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llvm-mirror/test/Transforms/SampleProfile/inline-replay.ll
modimo d56ed46145 [Inliner] Change inline remark format and update ReplayInlineAdvisor to use it
This change modifies the source location formatting from:
LineNumber.Discriminator
to:
LineNumber:ColumnNumber.Discriminator

The motivation here is to enhance location information for inline replay that currently exists for the SampleProfile inliner. This will be leveraged further in inline replay for the CGSCC inliner in the related diff.

The ReplayInlineAdvisor is also modified to read the new format and now takes into account the callee for greater accuracy.

Testing:
ninja check-llvm

Reviewed By: mtrofin

Differential Revision: https://reviews.llvm.org/D94333
2021-01-12 13:43:48 -08:00

123 lines
5.4 KiB
LLVM

;; Note that this needs new pass manager for now. Passing `-sample-profile-inline-replay` to legacy pass manager is a no-op.
;; Check baseline inline decisions
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/inline-topdown.prof -sample-profile-merge-inlinee -sample-profile-top-down-load -pass-remarks=inline -S 2>&1 | FileCheck -check-prefix=DEFAULT %s
;; Check replay inline decisions
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/inline-topdown.prof -sample-profile-inline-replay=%S/Inputs/inline-replay.txt -sample-profile-merge-inlinee -sample-profile-top-down-load -pass-remarks=inline -S 2>&1 | FileCheck -check-prefix=REPLAY %s
@.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1
define i32 @_Z3sumii(i32 %x, i32 %y) #0 !dbg !6 {
entry:
%x.addr = alloca i32, align 4
%y.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
store i32 %y, i32* %y.addr, align 4
%tmp = load i32, i32* %x.addr, align 4, !dbg !8
%tmp1 = load i32, i32* %y.addr, align 4, !dbg !8
%add = add nsw i32 %tmp, %tmp1, !dbg !8
%tmp2 = load i32, i32* %x.addr, align 4, !dbg !8
%tmp3 = load i32, i32* %y.addr, align 4, !dbg !8
%call = call i32 @_Z3subii(i32 %tmp2, i32 %tmp3), !dbg !8
ret i32 %add, !dbg !8
}
define i32 @_Z3subii(i32 %x, i32 %y) #0 !dbg !9 {
entry:
%x.addr = alloca i32, align 4
%y.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
store i32 %y, i32* %y.addr, align 4
%tmp = load i32, i32* %x.addr, align 4, !dbg !10
%tmp1 = load i32, i32* %y.addr, align 4, !dbg !10
%add = sub nsw i32 %tmp, %tmp1, !dbg !10
ret i32 %add, !dbg !11
}
define i32 @main() #0 !dbg !12 {
entry:
%retval = alloca i32, align 4
%s = alloca i32, align 4
%i = alloca i32, align 4
store i32 0, i32* %retval
store i32 0, i32* %i, align 4, !dbg !13
br label %while.cond, !dbg !14
while.cond: ; preds = %if.end, %entry
%tmp = load i32, i32* %i, align 4, !dbg !15
%inc = add nsw i32 %tmp, 1, !dbg !15
store i32 %inc, i32* %i, align 4, !dbg !15
%cmp = icmp slt i32 %tmp, 400000000, !dbg !15
br i1 %cmp, label %while.body, label %while.end, !dbg !15
while.body: ; preds = %while.cond
%tmp1 = load i32, i32* %i, align 4, !dbg !17
%cmp1 = icmp ne i32 %tmp1, 100, !dbg !17
br i1 %cmp1, label %if.then, label %if.else, !dbg !17
if.then: ; preds = %while.body
%tmp2 = load i32, i32* %i, align 4, !dbg !19
%tmp3 = load i32, i32* %s, align 4, !dbg !19
%call = call i32 @_Z3sumii(i32 %tmp2, i32 %tmp3), !dbg !19
store i32 %call, i32* %s, align 4, !dbg !19
br label %if.end, !dbg !19
if.else: ; preds = %while.body
store i32 30, i32* %s, align 4, !dbg !21
br label %if.end
if.end: ; preds = %if.else, %if.then
br label %while.cond, !dbg !23
while.end: ; preds = %while.cond
%tmp4 = load i32, i32* %s, align 4, !dbg !25
%call2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %tmp4), !dbg !25
ret i32 0, !dbg !26
}
declare i32 @printf(i8*, ...)
attributes #0 = { "use-sample-profile" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
!llvm.ident = !{!5}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.5 ", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "calls.cc", directory: ".")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 1, !"Debug Info Version", i32 3}
!5 = !{!"clang version 3.5 "}
!6 = distinct !DISubprogram(name: "sum", linkageName: "_Z3sumii", scope: !1, file: !1, line: 3, type: !7, scopeLine: 3, virtualIndex: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!7 = !DISubroutineType(types: !2)
!8 = !DILocation(line: 4, scope: !6)
!9 = distinct !DISubprogram(name: "sub", linkageName: "_Z3subii", scope: !1, file: !1, line: 20, type: !7, scopeLine: 20, virtualIndex: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!10 = !DILocation(line: 20, scope: !9)
!11 = !DILocation(line: 21, scope: !9)
!12 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !7, scopeLine: 7, virtualIndex: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!13 = !DILocation(line: 8, scope: !12)
!14 = !DILocation(line: 9, scope: !12)
!15 = !DILocation(line: 9, scope: !16)
!16 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 2)
!17 = !DILocation(line: 10, scope: !18)
!18 = distinct !DILexicalBlock(scope: !12, file: !1, line: 10)
!19 = !DILocation(line: 10, scope: !20)
!20 = !DILexicalBlockFile(scope: !18, file: !1, discriminator: 2)
!21 = !DILocation(line: 10, scope: !22)
!22 = !DILexicalBlockFile(scope: !18, file: !1, discriminator: 4)
!23 = !DILocation(line: 10, scope: !24)
!24 = !DILexicalBlockFile(scope: !18, file: !1, discriminator: 6)
!25 = !DILocation(line: 11, scope: !12)
!26 = !DILocation(line: 12, scope: !12)
; DEFAULT: _Z3sumii inlined into main
; DEFAULT: _Z3subii inlined into _Z3sumii
; DEFAULT-NOT: _Z3subii inlined into main
; REPLAY: _Z3sumii inlined into main
; REPLAY: _Z3subii inlined into main
; REPLAY-NOT: _Z3subii inlined into _Z3sumii