2012-12-01 01:22:38 +00:00
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; RUN: llc < %s -mtriple=x86_64-apple-macosx -enable-misched \
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; RUN: -verify-machineinstrs | FileCheck %s
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;
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; Test MachineScheduler handling of DBG_VALUE.
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; rdar://12776937.
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;
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; CHECK: %if.else581
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; CHECK: DEBUG_VALUE: num1
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; CHECK: call
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%union.rec = type {}
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@.str15 = external hidden unnamed_addr constant [6 x i8], align 1
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Move the complex address expression out of DIVariable and into an extra
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics.
Previously, DIVariable was a variable-length field that has an optional
reference to a Metadata array consisting of a variable number of
complex address expressions. In the case of OpPiece expressions this is
wasting a lot of storage in IR, because when an aggregate type is, e.g.,
SROA'd into all of its n individual members, the IR will contain n copies
of the DIVariable, all alike, only differing in the complex address
reference at the end.
By making the complex address into an extra argument of the
dbg.value/dbg.declare intrinsics, all of the pieces can reference the
same variable and the complex address expressions can be uniqued across
the CU, too.
Down the road, this will allow us to move other flags, such as
"indirection" out of the DIVariable, too.
The new intrinsics look like this:
declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr)
declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr)
This patch adds a new LLVM-local tag to DIExpressions, so we can detect
and pretty-print DIExpression metadata nodes.
What this patch doesn't do:
This patch does not touch the "Indirect" field in DIVariable; but moving
that into the expression would be a natural next step.
http://reviews.llvm.org/D4919
rdar://problem/17994491
Thanks to dblaikie and dexonsmith for reviewing this patch!
Note: I accidentally committed a bogus older version of this patch previously.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218787 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-01 18:55:02 +00:00
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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2012-12-01 01:22:38 +00:00
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define i32 @AttachGalley(%union.rec** nocapture %suspend_pt) nounwind uwtable ssp {
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entry:
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%num14075 = alloca [20 x i8], align 16
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br label %if.end33
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if.end33: ; preds = %entry
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%cmp1733 = icmp eq i32 undef, 0
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br label %if.else581
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if.else581: ; preds = %if.end33
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%cmp586 = icmp eq i8 undef, -123
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br i1 %cmp586, label %if.then588, label %if.else594
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if.then588: ; preds = %if.else581
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br label %for.cond1710.preheader
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if.else594: ; preds = %if.else581
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unreachable
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for.cond1710.preheader: ; preds = %if.then588
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br label %for.cond1710
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for.cond1710: ; preds = %for.cond1710, %for.cond1710.preheader
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br i1 undef, label %for.cond1710, label %if.then3344
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if.then3344:
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br label %if.then4073
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if.then4073: ; preds = %if.then3344
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2014-10-03 20:01:09 +00:00
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call void @llvm.dbg.declare(metadata !{[20 x i8]* %num14075}, metadata !4, metadata !{metadata !"0x102"})
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2012-12-01 01:22:38 +00:00
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%arraydecay4078 = getelementptr inbounds [20 x i8]* %num14075, i64 0, i64 0
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%0 = load i32* undef, align 4
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%add4093 = add nsw i32 %0, 0
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%conv4094 = sitofp i32 %add4093 to float
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%div4095 = fdiv float %conv4094, 5.670000e+02
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%conv4096 = fpext float %div4095 to double
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%call4097 = call i32 (i8*, i32, i64, i8*, ...)* @__sprintf_chk(i8* %arraydecay4078, i32 0, i64 20, i8* getelementptr inbounds ([6 x i8]* @.str15, i64 0, i64 0), double %conv4096) nounwind
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br i1 %cmp1733, label %if.then4107, label %if.else4114
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if.then4107: ; preds = %if.then4073
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unreachable
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if.else4114: ; preds = %if.then4073
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unreachable
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}
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declare i32 @__sprintf_chk(i8*, i32, i64, i8*, ...)
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!llvm.dbg.cu = !{!0}
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2013-11-23 01:16:29 +00:00
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!llvm.module.flags = !{!35}
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2012-12-01 01:22:38 +00:00
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2014-10-03 20:01:09 +00:00
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!0 = metadata !{metadata !"0x11\0012\00clang version 3.3 (trunk 168918) (llvm/trunk 168920)\001\00\000\00\000", metadata !19, metadata !2, metadata !2, metadata !20, metadata !2, null} ; [ DW_TAG_compile_unit ] [MultiSource/Benchmarks/MiBench/consumer-typeset/MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c] [DW_LANG_C99]
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2012-12-01 01:22:38 +00:00
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!1 = metadata !{metadata !2}
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2014-02-04 01:23:52 +00:00
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!2 = metadata !{}
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2014-10-03 20:01:09 +00:00
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!4 = metadata !{metadata !"0x100\00num1\00815\000", metadata !5, metadata !14, metadata !15} ; [ DW_TAG_auto_variable ] [num1] [line 815]
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!5 = metadata !{metadata !"0xb\00815\000\00177", metadata !14, metadata !6} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!6 = metadata !{metadata !"0xb\00812\000\00176", metadata !14, metadata !7} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!7 = metadata !{metadata !"0xb\00807\000\00175", metadata !14, metadata !8} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!8 = metadata !{metadata !"0xb\00440\000\0094", metadata !14, metadata !9} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!9 = metadata !{metadata !"0xb\00435\000\0091", metadata !14, metadata !10} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!10 = metadata !{metadata !"0xb\00434\000\0090", metadata !14, metadata !11} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!11 = metadata !{metadata !"0xb\00250\000\0024", metadata !14, metadata !12} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!12 = metadata !{metadata !"0xb\00249\000\0023", metadata !14, metadata !13} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!13 = metadata !{metadata !"0xb\00221\000\0019", metadata !14, metadata !2} ; [ DW_TAG_lexical_block ] [MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c]
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!14 = metadata !{metadata !"0x29", metadata !19} ; [ DW_TAG_file_type ]
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!15 = metadata !{metadata !"0x1\00\000\00160\008\000\000", null, null, metadata !16, metadata !17, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 160, align 8, offset 0] [from char]
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!16 = metadata !{metadata !"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]
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2012-12-01 01:22:38 +00:00
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!17 = metadata !{metadata !18}
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2014-10-03 20:01:09 +00:00
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!18 = metadata !{metadata !"0x21\000\0020"} ; [ DW_TAG_subrange_type ] [0, 19]
|
2013-03-17 21:13:55 +00:00
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!19 = metadata !{metadata !"MultiSource/Benchmarks/MiBench/consumer-typeset/z19.c", metadata !"MultiSource/Benchmarks/MiBench/consumer-typeset"}
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2012-12-05 21:37:50 +00:00
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2014-07-25 16:05:18 +00:00
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!20 = metadata !{metadata !21}
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2014-10-03 20:01:09 +00:00
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!21 = metadata !{metadata !"0x2e\00AttachGalley\00AttachGalley\00\000\000\001\000\006\00256\001\001", metadata !19, metadata !14, metadata !22, null, i32 (%union.rec**)* @AttachGalley, null, null, null} ; [ DW_TAG_subprogram ] [def] [AttachGalley]
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!22 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !23, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
2014-07-25 16:05:18 +00:00
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!23 = metadata !{null}
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2012-12-05 21:37:50 +00:00
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; Test DebugValue uses visited by RegisterPressureTracker findUseBetween().
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;
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; CHECK: @main
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; CHECK: DEBUG_VALUE: X
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; CHECK: call
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%"class.__gnu_cxx::hash_map" = type { %"class.__gnu_cxx::hashtable" }
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%"class.__gnu_cxx::hashtable" = type { i64, i64, i64, i64, i64, i64 }
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define void @main() uwtable ssp {
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entry:
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%X = alloca %"class.__gnu_cxx::hash_map", align 8
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br i1 undef, label %cond.true, label %cond.end
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cond.true: ; preds = %entry
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unreachable
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cond.end: ; preds = %entry
|
2014-10-03 20:01:09 +00:00
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|
|
call void @llvm.dbg.declare(metadata !{%"class.__gnu_cxx::hash_map"* %X}, metadata !31, metadata !{metadata !"0x102"})
|
2012-12-05 21:37:50 +00:00
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|
%_M_num_elements.i.i.i.i = getelementptr inbounds %"class.__gnu_cxx::hash_map"* %X, i64 0, i32 0, i32 5
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|
|
invoke void @_Znwm()
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to label %exit.i unwind label %lpad2.i.i.i.i
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|
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|
|
exit.i: ; preds = %cond.end
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|
|
|
unreachable
|
|
|
|
|
|
|
|
lpad2.i.i.i.i: ; preds = %cond.end
|
|
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
|
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|
|
cleanup
|
|
|
|
br i1 undef, label %lpad.body.i.i, label %if.then.i.i.i.i.i.i.i.i
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|
|
if.then.i.i.i.i.i.i.i.i: ; preds = %lpad2.i.i.i.i
|
|
|
|
unreachable
|
|
|
|
|
|
|
|
lpad.body.i.i: ; preds = %lpad2.i.i.i.i
|
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|
|
resume { i8*, i32 } %0
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|
|
}
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|
|
declare i32 @__gxx_personality_v0(...)
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|
|
declare void @_Znwm()
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|
|
2013-03-17 21:13:55 +00:00
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|
!llvm.dbg.cu = !{!30}
|
2012-12-05 21:37:50 +00:00
|
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|
|
2014-10-03 20:01:09 +00:00
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|
!30 = metadata !{metadata !"0x11\004\00clang version 3.3 (trunk 169129) (llvm/trunk 169135)\001\00\000\00\000", metadata !34, metadata !2, metadata !2, metadata !36, null, null} ; [ DW_TAG_compile_unit ] [SingleSource/Benchmarks/Shootout-C++/hash.cpp] [DW_LANG_C_plus_plus]
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!31 = metadata !{metadata !"0x100\00X\0029\000", null, null, metadata !32} ; [ DW_TAG_auto_variable ] [X] [line 29]
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!32 = metadata !{metadata !"0x16\00HM\0028\000\000\000\000", metadata !34, null, null} ; [ DW_TAG_typedef ] [HM] [line 28, size 0, align 0, offset 0] [from ]
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!33 = metadata !{metadata !"0x29", metadata !34} ; [ DW_TAG_file_type ]
|
2013-03-17 21:13:55 +00:00
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!34 = metadata !{metadata !"SingleSource/Benchmarks/Shootout-C++/hash.cpp", metadata !"SingleSource/Benchmarks/Shootout-C++"}
|
2014-10-03 20:01:09 +00:00
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!35 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
|
2014-07-25 16:05:18 +00:00
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!36 = metadata !{metadata !37}
|
2014-10-03 20:01:09 +00:00
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!37 = metadata !{metadata !"0x2e\00main\00main\00\000\000\001\000\006\00256\001\001", metadata !19, metadata !14, metadata !22, null, void ()* @main, null, null, null} ; [ DW_TAG_subprogram ] [def] [main]
|