1; RUN: llc -mtriple=x86_64-apple-darwin10 < %s | FileCheck %s 2 3%struct.a = type { i32 } 4 5define i32 @bar(%struct.a* nocapture %b) nounwind ssp { 6entry: 7 tail call void @llvm.dbg.value(metadata %struct.a* %b, i64 0, metadata !6, metadata !{!"0x102"}), !dbg !13 8 %tmp1 = getelementptr inbounds %struct.a* %b, i64 0, i32 0, !dbg !14 9 %tmp2 = load i32* %tmp1, align 4, !dbg !14 10 tail call void @llvm.dbg.value(metadata i32 %tmp2, i64 0, metadata !11, metadata !{!"0x102"}), !dbg !14 11 %call = tail call i32 (...)* @foo(i32 %tmp2) nounwind , !dbg !18 12 %add = add nsw i32 %tmp2, 1, !dbg !19 13 ret i32 %add, !dbg !19 14} 15 16declare i32 @foo(...) 17 18declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone 19 20!llvm.dbg.cu = !{!2} 21!llvm.module.flags = !{!24} 22 23!0 = !{!"0x2e\00bar\00bar\00\005\000\001\000\006\00256\001\000", !22, !1, !3, null, i32 (%struct.a*)* @bar, null, null, !21} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 0] [bar] 24!1 = !{!"0x29", !22} ; [ DW_TAG_file_type ] 25!2 = !{!"0x11\0012\00clang version 2.9 (trunk 122997)\001\00\000\00\001", !22, !23, !23, !20, null, null} ; [ DW_TAG_compile_unit ] 26!3 = !{!"0x15\00\000\000\000\000\000\000", !22, !1, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 27!4 = !{!5} 28!5 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !2} ; [ DW_TAG_base_type ] 29!6 = !{!"0x101\00b\005\000", !0, !1, !7} ; [ DW_TAG_arg_variable ] 30!7 = !{!"0xf\00\000\0064\0064\000\000", null, !2, !8} ; [ DW_TAG_pointer_type ] 31!8 = !{!"0x13\00a\001\0032\0032\000\000\000", !22, !2, null, !9, null, null, null} ; [ DW_TAG_structure_type ] [a] [line 1, size 32, align 32, offset 0] [def] [from ] 32!9 = !{!10} 33!10 = !{!"0xd\00c\002\0032\0032\000\000", !22, !1, !5} ; [ DW_TAG_member ] 34!11 = !{!"0x100\00x\006\000", !12, !1, !5} ; [ DW_TAG_auto_variable ] 35!12 = !{!"0xb\005\0022\000", !22, !0} ; [ DW_TAG_lexical_block ] 36!13 = !MDLocation(line: 5, column: 19, scope: !0) 37!14 = !MDLocation(line: 6, column: 14, scope: !12) 38!18 = !MDLocation(line: 7, column: 2, scope: !12) 39!19 = !MDLocation(line: 8, column: 2, scope: !12) 40!20 = !{!0} 41!21 = !{!6, !11} 42!22 = !{!"bar.c", !"/private/tmp"} 43!23 = !{i32 0} 44 45; Check that variable bar:b value range is appropriately truncated in debug info. 46; The variable is in %rdi which is clobbered by 'movl %ebx, %edi' 47; Here Ltmp7 is the end of the location range. 48 49;CHECK: .loc 1 7 2 50;CHECK: movl 51;CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]] 52 53;CHECK:Ldebug_loc0: 54;CHECK-NEXT: Lset{{.*}} = 55;CHECK-NEXT: .quad 56;CHECK-NEXT: [[CLOBBER_OFF:Lset.*]] = [[CLOBBER]]-{{.*}} 57;CHECK-NEXT: .quad [[CLOBBER_OFF]] 58;CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}} 59;CHECK-NEXT: .short Lset 60;CHECK-NEXT: Ltmp 61;CHECK-NEXT: .byte 85 ## DW_OP_reg 62;CHECK-NEXT: Ltmp 63;CHECK-NEXT: .quad 0 64;CHECK-NEXT: .quad 0 65!24 = !{i32 1, !"Debug Info Version", i32 2} 66