1; ModuleID = 'array.c' 2; 3; From (clang -g -c -O1): 4; 5; void f(int* p) { 6; p[0] = 42; 7; } 8; 9; int main(int argc, char** argv) { 10; int array[4] = { 0, 1, 2, 3 }; 11; f(array); 12; return array[0]; 13; } 14; 15; RUN: llc -filetype=asm %s -o - | FileCheck %s 16; Test that we only emit register-indirect locations for the array array. 17; rdar://problem/14874886 18; 19; CHECK: ##DEBUG_VALUE: main:array <- [R{{.*}}+0] 20; CHECK-NOT: ##DEBUG_VALUE: main:array <- R{{.*}} 21target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 22target triple = "x86_64-apple-macosx10.9.0" 23 24@main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16 25 26; Function Attrs: nounwind ssp uwtable 27define void @f(i32* nocapture %p) #0 { 28 tail call void @llvm.dbg.value(metadata i32* %p, i64 0, metadata !11, metadata !{!"0x102"}), !dbg !28 29 store i32 42, i32* %p, align 4, !dbg !29, !tbaa !30 30 ret void, !dbg !34 31} 32 33; Function Attrs: nounwind ssp uwtable 34define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 { 35 %array = alloca [4 x i32], align 16 36 tail call void @llvm.dbg.value(metadata i32 %argc, i64 0, metadata !19, metadata !{!"0x102"}), !dbg !35 37 tail call void @llvm.dbg.value(metadata i8** %argv, i64 0, metadata !20, metadata !{!"0x102"}), !dbg !35 38 tail call void @llvm.dbg.value(metadata [4 x i32]* %array, i64 0, metadata !21, metadata !{!"0x102"}), !dbg !36 39 %1 = bitcast [4 x i32]* %array to i8*, !dbg !36 40 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 41 tail call void @llvm.dbg.value(metadata [4 x i32]* %array, i64 0, metadata !21, metadata !{!"0x102"}), !dbg !36 42 %2 = getelementptr inbounds [4 x i32]* %array, i64 0, i64 0, !dbg !37 43 call void @f(i32* %2), !dbg !37 44 tail call void @llvm.dbg.value(metadata [4 x i32]* %array, i64 0, metadata !21, metadata !{!"0x102"}), !dbg !36 45 %3 = load i32* %2, align 16, !dbg !38, !tbaa !30 46 ret i32 %3, !dbg !38 47} 48 49; Function Attrs: nounwind 50declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #1 51 52; Function Attrs: nounwind readnone 53declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2 54 55attributes #0 = { nounwind ssp uwtable } 56attributes #1 = { nounwind } 57attributes #2 = { nounwind readnone } 58 59!llvm.dbg.cu = !{!0} 60!llvm.module.flags = !{!25, !26} 61!llvm.ident = !{!27} 62 63!0 = !{!"0x11\0012\00clang version 3.5.0 \001\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/array.c] [DW_LANG_C99] 64!1 = !{!"array.c", !""} 65!2 = !{} 66!3 = !{!4, !12} 67!4 = !{!"0x2e\00f\00f\00\001\000\001\000\006\00256\001\001", !1, !5, !6, null, void (i32*)* @f, null, null, !10} ; [ DW_TAG_subprogram ] [line 1] [def] [f] 68!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/array.c] 69!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 70!7 = !{null, !8} 71!8 = !{!"0xf\00\000\0064\0064\000\000", null, null, !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int] 72!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] 73!10 = !{!11} 74!11 = !{!"0x101\00p\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [p] [line 1] 75!12 = !{!"0x2e\00main\00main\00\005\000\001\000\006\00256\001\005", !1, !5, !13, null, i32 (i32, i8**)* @main, null, null, !18} ; [ DW_TAG_subprogram ] [line 5] [def] [main] 76!13 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !14, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 77!14 = !{!9, !9, !15} 78!15 = !{!"0xf\00\000\0064\0064\000\000", null, null, !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ] 79!16 = !{!"0xf\00\000\0064\0064\000\000", null, null, !17} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from char] 80!17 = !{!"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char] 81!18 = !{!19, !20, !21} 82!19 = !{!"0x101\00argc\0016777221\000", !12, !5, !9} ; [ DW_TAG_arg_variable ] [argc] [line 5] 83!20 = !{!"0x101\00argv\0033554437\000", !12, !5, !15} ; [ DW_TAG_arg_variable ] [argv] [line 5] 84!21 = !{!"0x100\00array\006\000", !12, !5, !22} ; [ DW_TAG_auto_variable ] [array] [line 6] 85!22 = !{!"0x1\00\000\00128\0032\000\000", null, null, !9, !23, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 128, align 32, offset 0] [from int] 86!23 = !{!24} 87!24 = !{!"0x21\000\004"} ; [ DW_TAG_subrange_type ] [0, 3] 88!25 = !{i32 2, !"Dwarf Version", i32 2} 89!26 = !{i32 1, !"Debug Info Version", i32 2} 90!27 = !{!"clang version 3.5.0 "} 91!28 = !MDLocation(line: 1, scope: !4) 92!29 = !MDLocation(line: 2, scope: !4) 93!30 = !{!31, !31, i64 0} 94!31 = !{!"int", !32, i64 0} 95!32 = !{!"omnipotent char", !33, i64 0} 96!33 = !{!"Simple C/C++ TBAA"} 97!34 = !MDLocation(line: 3, scope: !4) 98!35 = !MDLocation(line: 5, scope: !12) 99!36 = !MDLocation(line: 6, scope: !12) 100!37 = !MDLocation(line: 7, scope: !12) 101!38 = !MDLocation(line: 8, scope: !12) 102