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;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2022 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
;
; RUN: igc_opt -flattenSmallSwitch -S < %s | FileCheck %s
; ------------------------------------------------
; FlattenSmallSwitch
; ------------------------------------------------
; This test checks that FlattenSmallSwitch pass follows
; 'How to Update Debug Info' llvm guideline.
;
; Debug MD for this test was created with debugify pass.
; ------------------------------------------------
; CHECK: define void @test_flatten{{.*}} !dbg [[SCOPE:![0-9]*]]
; CHECK: entry:
; CHECK: [[VAL1_V:%[A-z0-9]*]] = {{.*}}, !dbg [[VAL1_LOC:![0-9]*]]
; CHECK: void @llvm.dbg.value(metadata i32 [[VAL1_V]], metadata [[VAL1_MD:![0-9]*]], metadata !DIExpression()), !dbg [[VAL1_LOC]]
; CHECK-DAG: [[VAL2_V:%[A-z0-9]*]] = add i32 [[VAL1_V]], 13, !dbg [[VAL2_LOC:![0-9]*]]
; CHECK-DAG: void @llvm.dbg.value(metadata i32 [[VAL2_V]], metadata [[VAL2_MD:![0-9]*]], metadata !DIExpression()), !dbg [[VAL2_LOC]]
; CHECK-DAG: [[VAL3_V:%[A-z0-9]*]] = add i32 [[VAL1_V]], 16, !dbg [[VAL3_LOC:![0-9]*]]
; CHECK-DAG: void @llvm.dbg.value(metadata i32 [[VAL3_V]], metadata [[VAL3_MD:![0-9]*]], metadata !DIExpression()), !dbg [[VAL3_LOC]]
; CHECK-DAG: void @llvm.dbg.value(metadata i32 [[VAL4_V:%[A-z0-9]*]], metadata [[VAL4_MD:![0-9]*]], metadata !DIExpression()), !dbg [[VAL4_LOC:![0-9]*]]
; CHECK-DAG: [[VAL4_V]] = {{.*}}, !dbg [[VAL4_LOC]]
; CHECK-DAG: [[VAL5_V:%[A-z0-9]*]] = add {{.*}}, !dbg [[VAL5_LOC:![0-9]*]]
; CHECK-DAG: void @llvm.dbg.value(metadata i32 [[VAL5_V]], metadata [[VAL5_MD:![0-9]*]], metadata !DIExpression()), !dbg [[VAL5_LOC]]
define void @test_flatten(i32 %a, i32 %b, i32* %c) !dbg !6 {
entry:
%0 = add i32 %a, %b, !dbg !15
call void @llvm.dbg.value(metadata i32 %0, metadata !9, metadata !DIExpression()), !dbg !15
switch i32 %0, label %br3 [
i32 -5, label %br1
i32 -4, label %br2
], !dbg !16
br1: ; preds = %entry
%1 = add i32 %0, 13, !dbg !17
call void @llvm.dbg.value(metadata i32 %1, metadata !11, metadata !DIExpression()), !dbg !17
br label %end, !dbg !18
br2: ; preds = %entry
%2 = add i32 %0, 16, !dbg !19
call void @llvm.dbg.value(metadata i32 %2, metadata !12, metadata !DIExpression()), !dbg !19
br label %end, !dbg !20
br3: ; preds = %entry
br label %end, !dbg !21
end: ; preds = %br3, %br2, %br1
%3 = phi i32 [ %0, %br3 ], [ %1, %br1 ], [ %2, %br2 ], !dbg !22
call void @llvm.dbg.value(metadata i32 %3, metadata !13, metadata !DIExpression()), !dbg !22
%4 = add i32 %b, %3, !dbg !23
call void @llvm.dbg.value(metadata i32 %4, metadata !14, metadata !DIExpression()), !dbg !23
store i32 %4, i32* %c, !dbg !24
ret void, !dbg !25
}
; CHECK-DAG: [[FILE:![0-9]*]] = !DIFile(filename: "FlattenSmallSwitch.ll", directory: "/")
; CHECK-DAG: [[SCOPE]] = distinct !DISubprogram(name: "test_flatten", linkageName: "test_flatten", scope: null, file: [[FILE]], line: 1
; CHECK-DAG: [[VAL1_MD]] = !DILocalVariable(name: "1", scope: [[SCOPE]], file: [[FILE]], line: 1
; CHECK-DAG: [[VAL1_LOC]] = !DILocation(line: 1, column: 1, scope: [[SCOPE]])
; CHECK-DAG: [[VAL2_MD]] = !DILocalVariable(name: "2", scope: [[SCOPE]], file: [[FILE]], line: 3
; CHECK-DAG: [[VAL2_LOC]] = !DILocation(line: 3, column: 1, scope: [[SCOPE]])
; CHECK-DAG: [[VAL3_MD]] = !DILocalVariable(name: "3", scope: [[SCOPE]], file: [[FILE]], line: 5
; CHECK-DAG: [[VAL3_LOC]] = !DILocation(line: 5, column: 1, scope: [[SCOPE]])
; CHECK-DAG: [[VAL4_MD]] = !DILocalVariable(name: "4", scope: [[SCOPE]], file: [[FILE]], line: 8
; CHECK-DAG: [[VAL4_LOC]] = !DILocation(line: 8, column: 1, scope: [[SCOPE]])
; CHECK-DAG: [[VAL5_MD]] = !DILocalVariable(name: "5", scope: [[SCOPE]], file: [[FILE]], line: 9
; CHECK-DAG: [[VAL5_LOC]] = !DILocation(line: 9, column: 1, scope: [[SCOPE]])
; Function Attrs: nounwind readnone speculatable
declare void @llvm.dbg.value(metadata, metadata, metadata) #0
attributes #0 = { nounwind readnone speculatable }
!llvm.dbg.cu = !{!0}
!llvm.debugify = !{!3, !4}
!llvm.module.flags = !{!5}
!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
!1 = !DIFile(filename: "FlattenSmallSwitch.ll", directory: "/")
!2 = !{}
!3 = !{i32 11}
!4 = !{i32 5}
!5 = !{i32 2, !"Debug Info Version", i32 3}
!6 = distinct !DISubprogram(name: "test_flatten", linkageName: "test_flatten", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, unit: !0, retainedNodes: !8)
!7 = !DISubroutineType(types: !2)
!8 = !{!9, !11, !12, !13, !14}
!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
!10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
!11 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 3, type: !10)
!12 = !DILocalVariable(name: "3", scope: !6, file: !1, line: 5, type: !10)
!13 = !DILocalVariable(name: "4", scope: !6, file: !1, line: 8, type: !10)
!14 = !DILocalVariable(name: "5", scope: !6, file: !1, line: 9, type: !10)
!15 = !DILocation(line: 1, column: 1, scope: !6)
!16 = !DILocation(line: 2, column: 1, scope: !6)
!17 = !DILocation(line: 3, column: 1, scope: !6)
!18 = !DILocation(line: 4, column: 1, scope: !6)
!19 = !DILocation(line: 5, column: 1, scope: !6)
!20 = !DILocation(line: 6, column: 1, scope: !6)
!21 = !DILocation(line: 7, column: 1, scope: !6)
!22 = !DILocation(line: 8, column: 1, scope: !6)
!23 = !DILocation(line: 9, column: 1, scope: !6)
!24 = !DILocation(line: 10, column: 1, scope: !6)
!25 = !DILocation(line: 11, column: 1, scope: !6)
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