| ; ModuleID = 'array.c' |
| ; |
| ; From (clang -g -c -O1): |
| ; |
| ; 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: llc -filetype=asm %s -o - | FileCheck %s |
| ; Test that we only emit register-indirect locations for the array array. |
| ; rdar://problem/14874886 |
| ; |
| ; CHECK: ##DEBUG_VALUE: main:array <- [%RSP+0] |
| ; CHECK-NOT: ##DEBUG_VALUE: main:array <- %R{{.*}} |
| 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* nocapture %p) #0 !dbg !4 { |
| tail call void @llvm.dbg.value(metadata i32* %p, i64 0, metadata !11, metadata !DIExpression()), !dbg !28 |
| store i32 42, i32* %p, align 4, !dbg !29, !tbaa !30 |
| ret void, !dbg !34 |
| } |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 !dbg !12 { |
| %array = alloca [4 x i32], align 16 |
| tail call void @llvm.dbg.value(metadata i32 %argc, i64 0, metadata !19, metadata !DIExpression()), !dbg !35 |
| tail call void @llvm.dbg.value(metadata i8** %argv, i64 0, metadata !20, metadata !DIExpression()), !dbg !35 |
| tail call void @llvm.dbg.value(metadata [4 x i32]* %array, i64 0, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !36 |
| %1 = bitcast [4 x i32]* %array to i8*, !dbg !36 |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* bitcast ([4 x i32]* @main.array to i8*), i64 16, i32 16, i1 false), !dbg !36 |
| tail call void @llvm.dbg.value(metadata [4 x i32]* %array, i64 0, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !36 |
| %2 = getelementptr inbounds [4 x i32], [4 x i32]* %array, i64 0, i64 0, !dbg !37 |
| call void @f(i32* %2), !dbg !37 |
| tail call void @llvm.dbg.value(metadata [4 x i32]* %array, i64 0, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !36 |
| %3 = load i32, i32* %2, align 16, !dbg !38, !tbaa !30 |
| ret i32 %3, !dbg !38 |
| } |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #1 |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2 |
| |
| attributes #0 = { nounwind ssp uwtable } |
| attributes #1 = { nounwind } |
| attributes #2 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!25, !26} |
| !llvm.ident = !{!27} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: true, 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: true, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !10) |
| !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 = !{!11} |
| !11 = !DILocalVariable(name: "p", line: 1, arg: 1, scope: !4, file: !5, type: !8) |
| !12 = distinct !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !13, variables: !18) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!9, !9, !15} |
| !15 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !16) |
| !16 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !17) |
| !17 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) |
| !18 = !{!19, !20, !21} |
| !19 = !DILocalVariable(name: "argc", line: 5, arg: 1, scope: !12, file: !5, type: !9) |
| !20 = !DILocalVariable(name: "argv", line: 5, arg: 2, scope: !12, file: !5, type: !15) |
| !21 = !DILocalVariable(name: "array", line: 6, scope: !12, file: !5, type: !22) |
| !22 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !9, elements: !23) |
| !23 = !{!24} |
| !24 = !DISubrange(count: 4) |
| !25 = !{i32 2, !"Dwarf Version", i32 2} |
| !26 = !{i32 1, !"Debug Info Version", i32 3} |
| !27 = !{!"clang version 3.5.0 "} |
| !28 = !DILocation(line: 1, scope: !4) |
| !29 = !DILocation(line: 2, scope: !4) |
| !30 = !{!31, !31, i64 0} |
| !31 = !{!"int", !32, i64 0} |
| !32 = !{!"omnipotent char", !33, i64 0} |
| !33 = !{!"Simple C/C++ TBAA"} |
| !34 = !DILocation(line: 3, scope: !4) |
| !35 = !DILocation(line: 5, scope: !12) |
| !36 = !DILocation(line: 6, scope: !12) |
| !37 = !DILocation(line: 7, scope: !12) |
| !38 = !DILocation(line: 8, scope: !12) |