llvm-6502/test/CodeGen/ARM/debug-info-sreg2.ll
Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:01:09 +00:00

67 lines
3.5 KiB
LLVM

; RUN: llc < %s - -filetype=obj | llvm-dwarfdump -debug-dump=loc - | FileCheck %s
; Radar 9376013
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-macosx10.6.7"
; Just making sure the first part of the location isn't a repetition
; of the size of the location description.
;
; 0x90 DW_OP_regx of super-register
; CHECK: 0x00000000: Beginning address offset:
; CHECK-NEXT: Ending address offset:
; CHECK-NEXT: Location description: 90 {{.. .. .. .. $}}
define void @_Z3foov() optsize ssp {
entry:
%call = tail call float @_Z3barv() optsize, !dbg !11
tail call void @llvm.dbg.value(metadata !{float %call}, i64 0, metadata !5, metadata !{metadata !"0x102"}), !dbg !11
%call16 = tail call float @_Z2f2v() optsize, !dbg !12
%cmp7 = fcmp olt float %call, %call16, !dbg !12
br i1 %cmp7, label %for.body, label %for.end, !dbg !12
for.body: ; preds = %entry, %for.body
%k.08 = phi float [ %inc, %for.body ], [ %call, %entry ]
%call4 = tail call float @_Z2f3f(float %k.08) optsize, !dbg !13
%inc = fadd float %k.08, 1.000000e+00, !dbg !14
%call1 = tail call float @_Z2f2v() optsize, !dbg !12
%cmp = fcmp olt float %inc, %call1, !dbg !12
br i1 %cmp, label %for.body, label %for.end, !dbg !12
for.end: ; preds = %for.body, %entry
ret void, !dbg !15
}
declare float @_Z3barv() optsize
declare float @_Z2f2v() optsize
declare float @_Z2f3f(float) optsize
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!20}
!0 = metadata !{metadata !"0x11\004\00clang version 3.0 (trunk 130845)\001\00\000\00\001", metadata !18, metadata !19, metadata !19, metadata !16, null, null} ; [ DW_TAG_compile_unit ]
!1 = metadata !{metadata !"0x2e\00foo\00foo\00_Z3foov\005\000\001\000\006\00256\001\005", metadata !18, metadata !2, metadata !3, null, void ()* @_Z3foov, null, null, metadata !17} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
!2 = metadata !{metadata !"0x29", metadata !18} ; [ DW_TAG_file_type ]
!3 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !18, metadata !2, null, metadata !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!4 = metadata !{null}
!5 = metadata !{metadata !"0x100\00k\006\000", metadata !6, metadata !2, metadata !7} ; [ DW_TAG_auto_variable ]
!6 = metadata !{metadata !"0xb\005\0012\000", metadata !18, metadata !1} ; [ DW_TAG_lexical_block ]
!7 = metadata !{metadata !"0x24\00float\000\0032\0032\000\000\004", null, metadata !0} ; [ DW_TAG_base_type ]
!8 = metadata !{metadata !"0x100\00y\008\000", metadata !9, metadata !2, metadata !7} ; [ DW_TAG_auto_variable ]
!9 = metadata !{metadata !"0xb\007\0025\002", metadata !18, metadata !10} ; [ DW_TAG_lexical_block ]
!10 = metadata !{metadata !"0xb\007\003\001", metadata !18, metadata !6} ; [ DW_TAG_lexical_block ]
!11 = metadata !{i32 6, i32 18, metadata !6, null}
!12 = metadata !{i32 7, i32 3, metadata !6, null}
!13 = metadata !{i32 8, i32 20, metadata !9, null}
!14 = metadata !{i32 7, i32 20, metadata !10, null}
!15 = metadata !{i32 10, i32 1, metadata !6, null}
!16 = metadata !{metadata !1}
!17 = metadata !{metadata !5, metadata !8}
!18 = metadata !{metadata !"k.cc", metadata !"/private/tmp"}
!19 = metadata !{i32 0}
!20 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}