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llvm-mirror/test/DebugInfo/X86/sroasplit-1.ll
Matt Arsenault 4bf7d5872e OpaquePtr: Bulk update tests to use typed byval
Upgrade of the IR text tests should be the only thing blocking making
typed byval mandatory. Partially done through regex and partially
manual.
2020-11-20 14:00:46 -05:00

95 lines
4.5 KiB
LLVM

; RUN: opt %s -sroa -verify -S -o - | FileCheck %s
;
; Test that we can partial emit debug info for aggregates repeatedly
; split up by SROA.
;
; // Compile with -O1
; typedef struct {
; int a;
; long int b;
; } Inner;
;
; typedef struct {
; Inner inner[2];
; } Outer;
;
; int foo(Outer outer) {
; Inner i1 = outer.inner[1];
; return i1.a;
; }
;
; Verify that SROA creates a variable piece when splitting i1.
; CHECK: %[[I1:.*]] = alloca [12 x i8], align 4
; CHECK: call void @llvm.dbg.declare(metadata [12 x i8]* %[[I1]], metadata ![[VAR:[0-9]+]], metadata !DIExpression(DW_OP_LLVM_fragment, 32, 96))
; CHECK: call void @llvm.dbg.value(metadata i32 %[[A:.*]], metadata ![[VAR]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32))
; CHECK: ret i32 %[[A]]
; Read Var and Piece:
; CHECK: ![[VAR]] = !DILocalVariable(name: "i1",{{.*}} line: 11,
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.9.0"
%struct.Outer = type { [2 x %struct.Inner] }
%struct.Inner = type { i32, i64 }
; Function Attrs: nounwind ssp uwtable
define i32 @foo(%struct.Outer* byval(%struct.Outer) align 8 %outer) #0 !dbg !4 {
entry:
%i1 = alloca %struct.Inner, align 8
call void @llvm.dbg.declare(metadata %struct.Outer* %outer, metadata !25, metadata !2), !dbg !26
call void @llvm.dbg.declare(metadata %struct.Inner* %i1, metadata !27, metadata !2), !dbg !28
%inner = getelementptr inbounds %struct.Outer, %struct.Outer* %outer, i32 0, i32 0, !dbg !28
%arrayidx = getelementptr inbounds [2 x %struct.Inner], [2 x %struct.Inner]* %inner, i32 0, i64 1, !dbg !28
%0 = bitcast %struct.Inner* %i1 to i8*, !dbg !28
%1 = bitcast %struct.Inner* %arrayidx to i8*, !dbg !28
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %0, i8* align 8 %1, i64 16, i1 false), !dbg !28
%a = getelementptr inbounds %struct.Inner, %struct.Inner* %i1, i32 0, i32 0, !dbg !29
%2 = load i32, i32* %a, align 4, !dbg !29
ret i32 %2, !dbg !29
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #2
attributes #0 = { nounwind ssp uwtable }
attributes #1 = { nounwind readnone }
attributes #2 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!22, !23}
!llvm.ident = !{!24}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !{}, retainedTypes: !{}, globals: !{}, imports: !{})
!1 = !DIFile(filename: "sroasplit-1.c", directory: "")
!2 = !DIExpression()
!4 = distinct !DISubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, retainedNodes: !{})
!5 = !DIFile(filename: "sroasplit-1.c", directory: "")
!6 = !DISubroutineType(types: !7)
!7 = !{!8, !9}
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 256, align: 64, file: !1, elements: !11)
!11 = !{!12}
!12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 256, align: 64, file: !1, scope: !10, baseType: !13)
!13 = !DICompositeType(tag: DW_TAG_array_type, size: 256, align: 64, baseType: !14, elements: !20)
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
!15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 128, align: 64, file: !1, elements: !16)
!16 = !{!17, !18}
!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 64, align: 64, offset: 64, file: !1, scope: !15, baseType: !19)
!19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
!20 = !{!21}
!21 = !DISubrange(count: 2)
!22 = !{i32 2, !"Dwarf Version", i32 2}
!23 = !{i32 1, !"Debug Info Version", i32 3}
!24 = !{!"clang version 3.5.0 "}
!25 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
!26 = !DILocation(line: 10, scope: !4)
!27 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14)
!28 = !DILocation(line: 11, scope: !4)
!29 = !DILocation(line: 12, scope: !4)