llvm-6502/test/CodeGen/X86/dbg-declare.ll
Bill Wendling 9493dae613 Use the 'count' attribute to calculate the upper bound of an array.
The count attribute is more accurate with regards to the size of an array. It
also obviates the upper bound attribute in the subrange. We can also better
handle an unbound array by setting the count to -1 instead of the lower bound to
1 and upper bound to 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 21:34:03 +00:00

58 lines
3.4 KiB
LLVM

; RUN: llc < %s -O0 -mtriple x86_64-apple-darwin
; <rdar://problem/11134152>
define i32 @foo(i32* %x) nounwind uwtable ssp {
entry:
%x.addr = alloca i32*, align 8
%saved_stack = alloca i8*
%cleanup.dest.slot = alloca i32
store i32* %x, i32** %x.addr, align 8
call void @llvm.dbg.declare(metadata !{i32** %x.addr}, metadata !14), !dbg !15
%0 = load i32** %x.addr, align 8, !dbg !16
%1 = load i32* %0, align 4, !dbg !16
%2 = zext i32 %1 to i64, !dbg !16
%3 = call i8* @llvm.stacksave(), !dbg !16
store i8* %3, i8** %saved_stack, !dbg !16
%vla = alloca i8, i64 %2, align 16, !dbg !16
call void @llvm.dbg.declare(metadata !{i8* %vla}, metadata !18), !dbg !23
store i32 1, i32* %cleanup.dest.slot
%4 = load i8** %saved_stack, !dbg !24
call void @llvm.stackrestore(i8* %4), !dbg !24
ret i32 0, !dbg !25
}
declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
declare i8* @llvm.stacksave() nounwind
declare void @llvm.stackrestore(i8*) nounwind
!llvm.dbg.cu = !{!0}
!0 = metadata !{i32 786449, i32 0, i32 12, metadata !"20020104-2.c", metadata !"/Volumes/Sandbox/llvm", metadata !"clang version 3.1 (trunk 153698)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1} ; [ DW_TAG_compile_unit ]
!1 = metadata !{metadata !2}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !5}
!5 = metadata !{i32 786478, i32 0, metadata !6, metadata !"foo", metadata !"foo", metadata !"", metadata !6, i32 6, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32*)* @foo, null, null, metadata !12} ; [ DW_TAG_subprogram ]
!6 = metadata !{i32 786473, metadata !"20020104-2.c", metadata !"/Volumes/Sandbox/llvm", null} ; [ DW_TAG_file_type ]
!7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
!8 = metadata !{metadata !9, metadata !10}
!9 = metadata !{i32 786468, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!10 = metadata !{i32 786447, null, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !11} ; [ DW_TAG_pointer_type ]
!11 = metadata !{i32 786470, null, metadata !"", null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !9} ; [ DW_TAG_const_type ]
!12 = metadata !{metadata !13}
!13 = metadata !{i32 786468} ; [ DW_TAG_base_type ]
!14 = metadata !{i32 786689, metadata !5, metadata !"x", metadata !6, i32 16777221, metadata !10, i32 0, i32 0} ; [ DW_TAG_arg_variable ]
!15 = metadata !{i32 5, i32 21, metadata !5, null}
!16 = metadata !{i32 7, i32 13, metadata !17, null}
!17 = metadata !{i32 786443, metadata !5, i32 6, i32 1, metadata !6, i32 0} ; [ DW_TAG_lexical_block ]
!18 = metadata !{i32 786688, metadata !17, metadata !"a", metadata !6, i32 7, metadata !19, i32 0, i32 0} ; [ DW_TAG_auto_variable ]
!19 = metadata !{i32 786433, null, metadata !"", null, i32 0, i64 0, i64 8, i32 0, i32 0, metadata !20, metadata !21, i32 0, i32 0} ; [ DW_TAG_array_type ]
!20 = metadata !{i32 786468, null, metadata !"char", null, i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ]
!21 = metadata !{metadata !22}
!22 = metadata !{i32 786465, i64 0, i64 -1} ; [ DW_TAG_subrange_type ]
!23 = metadata !{i32 7, i32 8, metadata !17, null}
!24 = metadata !{i32 9, i32 1, metadata !17, null}
!25 = metadata !{i32 8, i32 3, metadata !17, null}