107 lines
4.8 KiB
LLVM
107 lines
4.8 KiB
LLVM
; ModuleID = 'array.c'
|
|
;
|
|
; From (clang -g -c -O0):
|
|
;
|
|
; void f(int* p) {
|
|
; p[0] = 42;
|
|
; }
|
|
;
|
|
; int main(int argc, char** argv) {
|
|
; int array[4] = { 0, 1, 2, 3 };
|
|
; f(array);
|
|
; return array[0];
|
|
; }
|
|
;
|
|
; RUN: opt %s -O2 -S -o - | FileCheck %s
|
|
; Test that we correctly lower dbg.declares for arrays.
|
|
;
|
|
; CHECK: define i32 @main
|
|
; CHECK: call void @llvm.dbg.value(metadata i32 42, i64 0, metadata ![[ARRAY:[0-9]+]], metadata ![[EXPR:[0-9]+]])
|
|
; CHECK: ![[ARRAY]] = !DILocalVariable(name: "array",{{.*}} line: 6
|
|
; CHECK: ![[EXPR]] = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
|
|
@main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16
|
|
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @f(i32* %p) #0 !dbg !4 {
|
|
entry:
|
|
%p.addr = alloca i32*, align 8
|
|
store i32* %p, i32** %p.addr, align 8
|
|
call void @llvm.dbg.declare(metadata i32** %p.addr, metadata !19, metadata !DIExpression()), !dbg !20
|
|
%0 = load i32*, i32** %p.addr, align 8, !dbg !21
|
|
%arrayidx = getelementptr inbounds i32, i32* %0, i64 0, !dbg !21
|
|
store i32 42, i32* %arrayidx, align 4, !dbg !21
|
|
ret void, !dbg !22
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define i32 @main(i32 %argc, i8** %argv) #0 !dbg !10 {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%argc.addr = alloca i32, align 4
|
|
%argv.addr = alloca i8**, align 8
|
|
%array = alloca [4 x i32], align 16
|
|
store i32 0, i32* %retval
|
|
store i32 %argc, i32* %argc.addr, align 4
|
|
call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !23, metadata !DIExpression()), !dbg !24
|
|
store i8** %argv, i8*** %argv.addr, align 8
|
|
call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !25, metadata !DIExpression()), !dbg !24
|
|
call void @llvm.dbg.declare(metadata [4 x i32]* %array, metadata !26, metadata !DIExpression()), !dbg !30
|
|
%0 = bitcast [4 x i32]* %array to i8*, !dbg !30
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* bitcast ([4 x i32]* @main.array to i8*), i64 16, i32 16, i1 false), !dbg !30
|
|
%arraydecay = getelementptr inbounds [4 x i32], [4 x i32]* %array, i32 0, i32 0, !dbg !31
|
|
call void @f(i32* %arraydecay), !dbg !31
|
|
%arrayidx = getelementptr inbounds [4 x i32], [4 x i32]* %array, i32 0, i64 0, !dbg !32
|
|
%1 = load i32, i32* %arrayidx, align 4, !dbg !32
|
|
ret i32 %1, !dbg !32
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2
|
|
|
|
attributes #0 = { nounwind ssp uwtable }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { nounwind }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!16, !17}
|
|
!llvm.ident = !{!18}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
|
|
!1 = !DIFile(filename: "array.c", directory: "")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
|
|
!5 = !DIFile(filename: "array.c", directory: "")
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{null, !8}
|
|
!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
|
|
!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!10 = distinct !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !11, variables: !2)
|
|
!11 = !DISubroutineType(types: !12)
|
|
!12 = !{!9, !9, !13}
|
|
!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !14)
|
|
!14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !15)
|
|
!15 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
|
|
!16 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!17 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!18 = !{!"clang version 3.5.0 "}
|
|
!19 = !DILocalVariable(name: "p", line: 1, arg: 1, scope: !4, file: !5, type: !8)
|
|
!20 = !DILocation(line: 1, scope: !4)
|
|
!21 = !DILocation(line: 2, scope: !4)
|
|
!22 = !DILocation(line: 3, scope: !4)
|
|
!23 = !DILocalVariable(name: "argc", line: 5, arg: 1, scope: !10, file: !5, type: !9)
|
|
!24 = !DILocation(line: 5, scope: !10)
|
|
!25 = !DILocalVariable(name: "argv", line: 5, arg: 2, scope: !10, file: !5, type: !13)
|
|
!26 = !DILocalVariable(name: "array", line: 6, scope: !10, file: !5, type: !27)
|
|
!27 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !9, elements: !28)
|
|
!28 = !{!29}
|
|
!29 = !DISubrange(count: 4)
|
|
!30 = !DILocation(line: 6, scope: !10)
|
|
!31 = !DILocation(line: 7, scope: !10)
|
|
!32 = !DILocation(line: 8, scope: !10)
|