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llvm/test/Transforms/Inline/alloca-dbgdeclare.ll
Chandler Carruth 919b2376dc [PM] Turn on the new PM's inliner in addition to the current one for 
most of the inliner test cases.

The inliner involves a bunch of interesting code and tends to be where
most of the issues I've seen experimenting with the new PM lie. All of
these test cases pass, but I'd like to keep some more thorough coverage
here so doing a fairly blanket enabling.

There are a handful of interesting tests I've not enabled yet because
they're focused on the always inliner, or on functionality that doesn't
(yet) exist in the inliner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290592 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-27 07:18:43 +00:00

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LLVM
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; RUN: opt -inline -S < %s | FileCheck %s
; RUN: opt -passes='cgscc(inline)' -S < %s | FileCheck %s
; struct A {
; int arg0;
; double arg1[2];
; } a, b;
;
; void fn3(A p1) {
; if (p1.arg0)
; a = p1;
; }
;
; void fn4() { fn3(b); }
;
; void fn5() {
; while (1)
; fn4();
; }
; ModuleID = 'test.cpp'
source_filename = "test/Transforms/Inline/alloca-dbgdeclare.ll"
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-apple-darwin"
%struct.A = type { i32, [2 x double] }
@a = global %struct.A zeroinitializer, align 8, !dbg !0
@b = global %struct.A zeroinitializer, align 8, !dbg !12
; Function Attrs: nounwind
declare void @_Z3fn31A(%struct.A* nocapture readonly) #0
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: argmemonly nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32, i1) #2
; Function Attrs: nounwind
define void @_Z3fn4v() #0 !dbg !22 {
entry:
; Test that the dbg.declare is moved together with the alloca.
; CHECK: define void @_Z3fn5v()
; CHECK-NEXT: entry:
; CHECK-NEXT: %agg.tmp.sroa.3.i = alloca [20 x i8], align 4
; CHECK-NEXT: call void @llvm.dbg.declare(metadata [20 x i8]* %agg.tmp.sroa.3.i,
%agg.tmp.sroa.3 = alloca [20 x i8], align 4
tail call void @llvm.dbg.declare(metadata [20 x i8]* %agg.tmp.sroa.3, metadata !25, metadata !30), !dbg !31
%agg.tmp.sroa.0.0.copyload = load i32, i32* getelementptr inbounds (%struct.A, %struct.A* @b, i64 0, i32 0), align 8, !dbg !33
tail call void @llvm.dbg.value(metadata i32 %agg.tmp.sroa.0.0.copyload, i64 0, metadata !25, metadata !34), !dbg !31
%agg.tmp.sroa.3.0..sroa_idx = getelementptr inbounds [20 x i8], [20 x i8]* %agg.tmp.sroa.3, i64 0, i64 0, !dbg !33
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %agg.tmp.sroa.3.0..sroa_idx, i8* getelementptr (i8, i8* bitcast (%struct.A* @b to i8*), i64 4), i64 20, i32 4, i1 false), !dbg !33
tail call void @llvm.dbg.declare(metadata %struct.A* undef, metadata !25, metadata !35) #0, !dbg !31
%tobool.i = icmp eq i32 %agg.tmp.sroa.0.0.copyload, 0, !dbg !36
br i1 %tobool.i, label %_Z3fn31A.exit, label %if.then.i, !dbg !38
if.then.i: ; preds = %entry
store i32 %agg.tmp.sroa.0.0.copyload, i32* getelementptr inbounds (%struct.A, %struct.A* @a, i64 0, i32 0), align 8, !dbg !39
call void @llvm.memcpy.p0i8.p0i8.i64(i8* getelementptr (i8, i8* bitcast (%struct.A* @a to i8*), i64 4), i8* %agg.tmp.sroa.3.0..sroa_idx, i64 20, i32 4, i1 false), !dbg !39
br label %_Z3fn31A.exit, !dbg !39
_Z3fn31A.exit: ; preds = %if.then.i, %entry
ret void, !dbg !33
}
; Function Attrs: noreturn nounwind
define void @_Z3fn5v() #3 !dbg !40 {
entry:
br label %while.body, !dbg !41
while.body: ; preds = %while.body, %entry
call void @_Z3fn4v(), !dbg !42
br label %while.body, !dbg !41
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
attributes #2 = { argmemonly nounwind }
attributes #3 = { noreturn nounwind }
!llvm.dbg.cu = !{!14}
!llvm.module.flags = !{!19, !20}
!llvm.ident = !{!21}
!0 = !DIGlobalVariableExpression(var: !1)
!1 = !DIGlobalVariable(name: "a", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true)
!2 = !DIFile(filename: "test.cpp", directory: "")
!3 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !2, line: 1, size: 192, align: 64, elements: !4, identifier: "_ZTS1A")
!4 = !{!5, !7}
!5 = !DIDerivedType(tag: DW_TAG_member, name: "arg0", scope: !3, file: !2, line: 2, baseType: !6, size: 32, align: 32)
!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!7 = !DIDerivedType(tag: DW_TAG_member, name: "arg1", scope: !3, file: !2, line: 3, baseType: !8, size: 128, align: 64, offset: 64)
!8 = !DICompositeType(tag: DW_TAG_array_type, baseType: !9, size: 128, align: 64, elements: !10)
!9 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
!10 = !{!11}
!11 = !DISubrange(count: 2)
!12 = !DIGlobalVariableExpression(var: !13)
!13 = !DIGlobalVariable(name: "b", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true)
!14 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !15, producer: "clang version 3.7.0 (trunk 227480) (llvm/trunk 227517)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !16, retainedTypes: !17, globals: !18, imports: !16)
!15 = !DIFile(filename: "<stdin>", directory: "")
!16 = !{}
!17 = !{!3}
!18 = !{!0, !12}
!19 = !{i32 2, !"Dwarf Version", i32 4}
!20 = !{i32 2, !"Debug Info Version", i32 3}
!21 = !{!"clang version 3.7.0 (trunk 227480) (llvm/trunk 227517)"}
!22 = distinct !DISubprogram(name: "fn4", linkageName: "_Z3fn4v", scope: !2, file: !2, line: 11, type: !23, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !14, variables: !16)
!23 = !DISubroutineType(types: !24)
!24 = !{null}
!25 = !DILocalVariable(name: "p1", arg: 1, scope: !26, file: !2, line: 6, type: !3)
!26 = distinct !DISubprogram(name: "fn3", linkageName: "_Z3fn31A", scope: !2, file: !2, line: 6, type: !27, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !14, variables: !29)
!27 = !DISubroutineType(types: !28)
!28 = !{null, !3}
!29 = !{!25}
!30 = !DIExpression(DW_OP_LLVM_fragment, 32, 160)
!31 = !DILocation(line: 6, scope: !26, inlinedAt: !32)
!32 = distinct !DILocation(line: 11, scope: !22)
!33 = !DILocation(line: 11, scope: !22)
!34 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
!35 = !DIExpression(DW_OP_deref)
!36 = !DILocation(line: 7, scope: !37, inlinedAt: !32)
!37 = distinct !DILexicalBlock(scope: !26, file: !2, line: 7)
!38 = !DILocation(line: 7, scope: !26, inlinedAt: !32)
!39 = !DILocation(line: 8, scope: !37, inlinedAt: !32)
!40 = distinct !DISubprogram(name: "fn5", linkageName: "_Z3fn5v", scope: !2, file: !2, line: 13, type: !23, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: true, unit: !14, variables: !16)
!41 = !DILocation(line: 14, scope: !40)
!42 = !DILocation(line: 15, scope: !40)
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