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llvm-mirror/test/DebugInfo/X86/vla-dependencies.ll
Pavel Labath d6de5d70e8 [CodeGen/Dwarf] Rename the "sizetype" synthetic type and add it to the accelerator table
Summary:
This type is created on-demand and used as the base type for array
ranges. Since it is "special", its construction did not go through the
createTypeDIE function and so it was never inserted into the accelerator
table, although it clearly belongs there.

I add an explicit addAccelType call to insert it into the table.

During review, we also decided to rename the type to something more
unique to avoid confusion in case the user has own "sizetype" type. The
new name for the type size __ARRAY_SIZE_TYPE__.

Reviewers: JDevlieghere, aprantl, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45445

llvm-svn: 329705
2018-04-10 14:23:41 +00:00

102 lines
4.4 KiB
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin %s -o - -filetype=obj | llvm-dwarfdump - | FileCheck %s
; CHECK: DW_TAG_subprogram
; CHECK: DW_AT_name ("h")
; CHECK: 0x00000[[VLAEXPR:.*]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name ("vla_expr")
; CHECK: DW_TAG_array_type
; CHECK-NEXT: DW_AT_type {{.*}}"int"
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_subrange_type
; CHECK-NEXT: DW_AT_type {{.*}}"__ARRAY_SIZE_TYPE__"
; CHECK-NEXT: DW_AT_count (0x00000[[VLAEXPR]]
;
;
; Generated from (and then modified):
;
; #define DECLARE_ARRAY(type, var_name, size) type var_name[size]
;
; void h(void);
; void k(void *);
;
; void g() {
; h();
; }
;
; void h() {
; int count = 2;
; DECLARE_ARRAY(int, array, count);
; k((void *)array);
; }
source_filename = "/tmp/test.c"
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.13.0"
; Function Attrs: nounwind ssp uwtable
define void @g() local_unnamed_addr #0 !dbg !10 {
entry:
%vla2.i = alloca [2 x i32], align 16, !dbg !13
call void @llvm.dbg.declare(metadata [2 x i32]* %vla2.i, metadata !20, metadata !DIExpression(DW_OP_stack_value)), !dbg !13
%0 = bitcast [2 x i32]* %vla2.i to i8*, !dbg !25
call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %0), !dbg !25
call void @llvm.dbg.value(metadata i32 2, metadata !16, metadata !DIExpression()) #3, !dbg !25
call void @llvm.dbg.value(metadata i64 2, metadata !18, metadata !DIExpression()) #3, !dbg !13
call void @llvm.dbg.value(metadata i32 2, metadata !16, metadata !DIExpression()) #3, !dbg !25
call void @llvm.dbg.value(metadata i64 2, metadata !18, metadata !DIExpression()) #3, !dbg !13
call void @k(i8* nonnull %0) #3, !dbg !26
call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %0), !dbg !27
ret void, !dbg !28
}
; Function Attrs: nounwind readnone speculatable
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
declare void @k(i8*) local_unnamed_addr
; Function Attrs: nounwind readnone speculatable
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #2
; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #2
attributes #0 = { nounwind ssp uwtable }
attributes #1 = { nounwind readnone speculatable }
attributes #2 = { argmemonly nounwind }
attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!5, !6, !7, !8}
!llvm.ident = !{!9}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 324259) (llvm/trunk 324261)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
!1 = !DIFile(filename: "/tmp/test.c", directory: "/")
!2 = !{}
!3 = !{!4}
!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
!5 = !{i32 2, !"Dwarf Version", i32 4}
!6 = !{i32 2, !"Debug Info Version", i32 3}
!7 = !{i32 1, !"wchar_size", i32 4}
!8 = !{i32 7, !"PIC Level", i32 2}
!9 = !{!"clang version 7.0.0 (trunk 324259) (llvm/trunk 324261)"}
!10 = distinct !DISubprogram(name: "g", scope: !1, file: !1, line: 6, type: !11, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: true, unit: !0, variables: !2)
!11 = !DISubroutineType(types: !12)
!12 = !{null}
!13 = !DILocation(line: 12, column: 3, scope: !14, inlinedAt: !24)
!14 = distinct !DISubprogram(name: "h", scope: !1, file: !1, line: 10, type: !11, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !15)
!15 = !{!16, !18, !20}
!16 = !DILocalVariable(name: "count", scope: !14, file: !1, line: 11, type: !17)
!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!18 = !DILocalVariable(name: "vla_expr", scope: !14, file: !1, line: 12, type: !19)
!19 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
!20 = !DILocalVariable(name: "array", scope: !14, file: !1, line: 12, type: !21)
!21 = !DICompositeType(tag: DW_TAG_array_type, baseType: !17, elements: !22)
!22 = !{!23}
!23 = !DISubrange(count: !18)
!24 = distinct !DILocation(line: 7, column: 3, scope: !10)
!25 = !DILocation(line: 11, column: 7, scope: !14, inlinedAt: !24)
!26 = !DILocation(line: 13, column: 3, scope: !14, inlinedAt: !24)
!27 = !DILocation(line: 14, column: 1, scope: !14, inlinedAt: !24)
!28 = !DILocation(line: 8, column: 1, scope: !10)