2014-06-04 03:30:59 +02:00
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; REQUIRES: object-emission
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; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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2014-06-04 19:05:23 +02:00
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; The formal parameter 'b' for Function 'x' when inlined within 'a' is lost on
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; mips and powerpc64 (and on x86_64 at at least -O2). Presumably this is a
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; SelectionDAG issue (do mips/powerpc64 use FastISel?).
|
2014-06-05 16:20:54 +02:00
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; XFAIL: mips, powerpc64, s390x
|
2014-06-04 19:05:23 +02:00
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2014-06-04 03:30:59 +02:00
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; Build from the following source with clang -O2.
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; The important details are that 'x's abstract definition is first built during
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; the definition of 'b', where the parameter to 'x' is constant and so 'x's 's'
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; variable is optimized away. No abstract definition DIE for 's' is constructed.
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; Then, during 'a' emission, the abstract DbgVariable for 's' is created, but
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; the abstract DIE isn't (since the abstract definition for 'b' is already
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; built). This results in 's' inlined in 'a' being emitted with its name, line,
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; file there, rather than referencing an abstract definition.
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; extern int t;
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;
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; void f(int);
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;
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; inline void x(bool b) {
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; if (b) {
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; int s = t;
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; f(s);
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; }
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; f(0);
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; }
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;
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; void b() {
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; x(false);
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; }
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;
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; void a(bool u) {
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; x(u);
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; }
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; CHECK: [[ABS_X:.*]]: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "x"
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: [[ABS_B:.*]]: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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|
; CHECK: DW_AT_name {{.*}} "b"
|
2014-06-05 01:50:52 +02:00
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_lexical_block
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: [[ABS_S:.*]]: DW_TAG_variable
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "s"
|
2014-06-04 03:30:59 +02:00
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; CHECK: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "b"
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|
; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_inlined_subroutine
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|
; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_abstract_origin {{.*}} {[[ABS_X]]}
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_formal_parameter
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|
; CHECK-NOT: DW_TAG
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|
; CHECK: DW_AT_abstract_origin {{.*}} {[[ABS_B]]}
|
|
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|
|
; Notice 'x's local variable 's' is missing. Not necessarily a bug here,
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|
; since it's been optimized entirely away and it should be described in
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; abstract subprogram.
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; CHECK-NOT: DW_TAG
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; CHECK: NULL
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; CHECK-NOT: DW_TAG
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|
; CHECK: NULL
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|
; CHECK: DW_TAG_subprogram
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|
; CHECK-NOT: DW_TAG
|
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|
|
; CHECK: DW_AT_name {{.*}} "a"
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|
; CHECK-NOT: {{DW_TAG|NULL}}
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|
; CHECK: DW_TAG_formal_parameter
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|
; CHECK-NOT: {{DW_TAG|NULL}}
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|
|
|
; CHECK: DW_TAG_inlined_subroutine
|
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|
|
|
; CHECK-NOT: DW_TAG
|
|
|
|
|
; CHECK: DW_AT_abstract_origin {{.*}} {[[ABS_X]]}
|
|
|
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
2014-06-05 01:50:52 +02:00
|
|
|
; FIXME: This formal parameter goes missing at least at -O2 (& on
|
|
|
|
|
; mips/powerpc), maybe before that. Perhaps SelectionDAG is to blame (and
|
|
|
|
|
; fastisel succeeds).
|
2014-06-04 03:30:59 +02:00
|
|
|
; CHECK: DW_TAG_formal_parameter
|
|
|
|
|
; CHECK-NOT: DW_TAG
|
|
|
|
|
; CHECK: DW_AT_abstract_origin {{.*}} {[[ABS_B]]}
|
|
|
|
|
|
|
|
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
|
|
|
|
; CHECK: DW_TAG_lexical_block
|
|
|
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
2014-08-31 23:26:22 +02:00
|
|
|
; CHECK: DW_TAG_variable
|
2014-06-04 03:30:59 +02:00
|
|
|
; CHECK-NOT: DW_TAG
|
2014-08-31 23:26:22 +02:00
|
|
|
; CHECK: DW_AT_abstract_origin {{.*}} {[[ABS_S]]}
|
2014-06-04 03:30:59 +02:00
|
|
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|
@t = external global i32
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|
|
; Function Attrs: uwtable
|
|
|
|
|
define void @_Z1bv() #0 {
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|
|
|
|
entry:
|
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!
llvm-svn: 218778
2014-10-01 19:55:39 +02:00
|
|
|
tail call void @llvm.dbg.value(metadata !24, i64 0, metadata !25, metadata !{}), !dbg !27
|
2014-06-04 03:30:59 +02:00
|
|
|
tail call void @_Z1fi(i32 0), !dbg !28
|
|
|
|
|
ret void, !dbg !29
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; Function Attrs: uwtable
|
|
|
|
|
define void @_Z1ab(i1 zeroext %u) #0 {
|
|
|
|
|
entry:
|
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!
llvm-svn: 218778
2014-10-01 19:55:39 +02:00
|
|
|
tail call void @llvm.dbg.value(metadata !{i1 %u}, i64 0, metadata !13, metadata !{}), !dbg !30
|
|
|
|
|
tail call void @llvm.dbg.value(metadata !{i1 %u}, i64 0, metadata !31, metadata !{}), !dbg !33
|
2014-06-04 03:30:59 +02:00
|
|
|
br i1 %u, label %if.then.i, label %_Z1xb.exit, !dbg !34
|
|
|
|
|
|
|
|
|
|
if.then.i: ; preds = %entry
|
|
|
|
|
%0 = load i32* @t, align 4, !dbg !35, !tbaa !36
|
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!
llvm-svn: 218778
2014-10-01 19:55:39 +02:00
|
|
|
tail call void @llvm.dbg.value(metadata !{i32 %0}, i64 0, metadata !40, metadata !{}), !dbg !35
|
2014-06-04 03:30:59 +02:00
|
|
|
tail call void @_Z1fi(i32 %0), !dbg !41
|
|
|
|
|
br label %_Z1xb.exit, !dbg !42
|
|
|
|
|
|
|
|
|
|
_Z1xb.exit: ; preds = %entry, %if.then.i
|
|
|
|
|
tail call void @_Z1fi(i32 0), !dbg !43
|
|
|
|
|
ret void, !dbg !44
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
declare void @_Z1fi(i32) #1
|
|
|
|
|
|
|
|
|
|
; Function Attrs: nounwind readnone
|
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!
llvm-svn: 218778
2014-10-01 19:55:39 +02:00
|
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
|
2014-06-04 03:30:59 +02:00
|
|
|
|
|
|
|
|
attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
|
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
|
attributes #2 = { nounwind readnone }
|
|
|
|
|
|
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
|
|
|
!llvm.module.flags = !{!21, !22}
|
|
|
|
|
!llvm.ident = !{!23}
|
|
|
|
|
|
|
|
|
|
!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/missing-abstract-variables.cc] [DW_LANG_C_plus_plus]
|
|
|
|
|
!1 = metadata !{metadata !"missing-abstract-variables.cc", metadata !"/tmp/dbginfo"}
|
|
|
|
|
!2 = metadata !{}
|
|
|
|
|
!3 = metadata !{metadata !4, metadata !8, metadata !14}
|
|
|
|
|
!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"b", metadata !"b", metadata !"_Z1bv", i32 13, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @_Z1bv, null, null, metadata !2, i32 13} ; [ DW_TAG_subprogram ] [line 13] [def] [b]
|
|
|
|
|
!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/missing-abstract-variables.cc]
|
|
|
|
|
!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
|
|
|
!7 = metadata !{null}
|
|
|
|
|
!8 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"a", metadata !"a", metadata !"_Z1ab", i32 17, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i1)* @_Z1ab, null, null, metadata !12, i32 17} ; [ DW_TAG_subprogram ] [line 17] [def] [a]
|
|
|
|
|
!9 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !10, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
|
|
|
!10 = metadata !{null, metadata !11}
|
|
|
|
|
!11 = metadata !{i32 786468, null, null, metadata !"bool", i32 0, i64 8, i64 8, i64 0, i32 0, i32 2} ; [ DW_TAG_base_type ] [bool] [line 0, size 8, align 8, offset 0, enc DW_ATE_boolean]
|
|
|
|
|
!12 = metadata !{metadata !13}
|
|
|
|
|
!13 = metadata !{i32 786689, metadata !8, metadata !"u", metadata !5, i32 16777233, metadata !11, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [u] [line 17]
|
|
|
|
|
!14 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"x", metadata !"x", metadata !"_Z1xb", i32 5, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, null, metadata !15, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [x]
|
|
|
|
|
!15 = metadata !{metadata !16, metadata !17}
|
|
|
|
|
!16 = metadata !{i32 786689, metadata !14, metadata !"b", metadata !5, i32 16777221, metadata !11, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [b] [line 5]
|
|
|
|
|
!17 = metadata !{i32 786688, metadata !18, metadata !"s", metadata !5, i32 7, metadata !20, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [s] [line 7]
|
|
|
|
|
!18 = metadata !{i32 786443, metadata !1, metadata !19, i32 6, i32 0, i32 0, i32 1} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/missing-abstract-variables.cc]
|
|
|
|
|
!19 = metadata !{i32 786443, metadata !1, metadata !14, i32 6, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/missing-abstract-variables.cc]
|
|
|
|
|
!20 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
|
|
|
|
|
!21 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
|
|
|
|
|
!22 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
|
|
|
|
|
!23 = metadata !{metadata !"clang version 3.5.0 "}
|
|
|
|
|
!24 = metadata !{i1 false}
|
|
|
|
|
!25 = metadata !{i32 786689, metadata !14, metadata !"b", metadata !5, i32 16777221, metadata !11, i32 0, metadata !26} ; [ DW_TAG_arg_variable ] [b] [line 5]
|
|
|
|
|
!26 = metadata !{i32 14, i32 0, metadata !4, null}
|
|
|
|
|
!27 = metadata !{i32 5, i32 0, metadata !14, metadata !26}
|
|
|
|
|
!28 = metadata !{i32 10, i32 0, metadata !14, metadata !26}
|
|
|
|
|
!29 = metadata !{i32 15, i32 0, metadata !4, null}
|
|
|
|
|
!30 = metadata !{i32 17, i32 0, metadata !8, null}
|
|
|
|
|
!31 = metadata !{i32 786689, metadata !14, metadata !"b", metadata !5, i32 16777221, metadata !11, i32 0, metadata !32} ; [ DW_TAG_arg_variable ] [b] [line 5]
|
|
|
|
|
!32 = metadata !{i32 18, i32 0, metadata !8, null}
|
|
|
|
|
!33 = metadata !{i32 5, i32 0, metadata !14, metadata !32}
|
|
|
|
|
!34 = metadata !{i32 6, i32 0, metadata !19, metadata !32}
|
|
|
|
|
!35 = metadata !{i32 7, i32 0, metadata !18, metadata !32}
|
|
|
|
|
!36 = metadata !{metadata !37, metadata !37, i64 0}
|
|
|
|
|
!37 = metadata !{metadata !"int", metadata !38, i64 0}
|
|
|
|
|
!38 = metadata !{metadata !"omnipotent char", metadata !39, i64 0}
|
|
|
|
|
!39 = metadata !{metadata !"Simple C/C++ TBAA"}
|
|
|
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!40 = metadata !{i32 786688, metadata !18, metadata !"s", metadata !5, i32 7, metadata !20, i32 0, metadata !32} ; [ DW_TAG_auto_variable ] [s] [line 7]
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!41 = metadata !{i32 8, i32 0, metadata !18, metadata !32} ; [ DW_TAG_imported_declaration ]
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!42 = metadata !{i32 9, i32 0, metadata !18, metadata !32}
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!43 = metadata !{i32 10, i32 0, metadata !14, metadata !32}
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!44 = metadata !{i32 19, i32 0, metadata !8, null}
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