llvm-6502/test/Transforms/GlobalOpt/2009-03-05-dbg.ll
Manman Ren 1ed2e1fb92 Debug Info Testing: update context from empty string to null.
Context should be either null or MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190267 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-08 03:11:54 +00:00

80 lines
4.3 KiB
LLVM

; REQUIRES: asserts
; RUN: opt < %s -globalopt -stats -disable-output 2>&1 | grep "1 globalopt - Number of global vars shrunk to booleans"
@Stop = internal global i32 0 ; <i32*> [#uses=3]
define i32 @foo(i32 %i) nounwind ssp {
entry:
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.value(metadata !{i32 %i}, i64 0, metadata !3)
%0 = icmp eq i32 %i, 1, !dbg !7 ; <i1> [#uses=1]
br i1 %0, label %bb, label %bb1, !dbg !7
bb: ; preds = %entry
store i32 0, i32* @Stop, align 4, !dbg !9
%1 = mul nsw i32 %i, 42, !dbg !10 ; <i32> [#uses=1]
call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !3), !dbg !10
br label %bb2, !dbg !10
bb1: ; preds = %entry
store i32 1, i32* @Stop, align 4, !dbg !11
br label %bb2, !dbg !11
bb2: ; preds = %bb1, %bb
%i_addr.0 = phi i32 [ %1, %bb ], [ %i, %bb1 ] ; <i32> [#uses=1]
br label %return, !dbg !12
return: ; preds = %bb2
ret i32 %i_addr.0, !dbg !12
}
declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
define i32 @bar() nounwind ssp {
entry:
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
%0 = load i32* @Stop, align 4, !dbg !13 ; <i32> [#uses=1]
%1 = icmp eq i32 %0, 1, !dbg !13 ; <i1> [#uses=1]
br i1 %1, label %bb, label %bb1, !dbg !13
bb: ; preds = %entry
br label %bb2, !dbg !18
bb1: ; preds = %entry
br label %bb2, !dbg !19
bb2: ; preds = %bb1, %bb
%.0 = phi i32 [ 0, %bb ], [ 1, %bb1 ] ; <i32> [#uses=1]
br label %return, !dbg !19
return: ; preds = %bb2
ret i32 %.0, !dbg !19
}
declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!llvm.dbg.gv = !{!0}
!0 = metadata !{i32 458804, i32 0, metadata !1, metadata !"Stop", metadata !"Stop", metadata !"", metadata !1, i32 2, metadata !2, i1 true, i1 true, i32* @Stop} ; [ DW_TAG_variable ]
!1 = metadata !{i32 458769, metadata !20, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !21, metadata !21, null, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
!2 = metadata !{i32 458788, null, metadata !1, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!3 = metadata !{i32 459009, metadata !4, metadata !"i", metadata !1, i32 4, metadata !2} ; [ DW_TAG_arg_variable ]
!4 = metadata !{i32 458798, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", i32 4, metadata !5, i1 false, i1 true, i32 0, i32 0, null, i32 0, i32 0, null, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
!5 = metadata !{i32 458773, metadata !1, null, metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !6, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!6 = metadata !{metadata !2, metadata !2}
!7 = metadata !{i32 5, i32 0, metadata !8, null}
!8 = metadata !{i32 458763, metadata !20, metadata !4, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
!9 = metadata !{i32 6, i32 0, metadata !8, null}
!10 = metadata !{i32 7, i32 0, metadata !8, null}
!11 = metadata !{i32 9, i32 0, metadata !8, null}
!12 = metadata !{i32 11, i32 0, metadata !8, null}
!13 = metadata !{i32 14, i32 0, metadata !14, null}
!14 = metadata !{i32 458763, metadata !20, metadata !15, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
!15 = metadata !{i32 458798, i32 0, metadata !1, metadata !"bar", metadata !"bar", metadata !"bar", i32 13, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 0, i32 0, null, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
!16 = metadata !{i32 458773, metadata !1, null, metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !17, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!17 = metadata !{metadata !2}
!18 = metadata !{i32 15, i32 0, metadata !14, null}
!19 = metadata !{i32 16, i32 0, metadata !14, null}
!20 = metadata !{metadata !"g.c", metadata !"/tmp"}
!21 = metadata !{i32 0}