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llvm-6502/test/DebugInfo/X86/debug-info-static-member.ll
David Blaikie 198d8baafb [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.

This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.

* This doesn't modify gep operators, only instructions (operators will be
  handled separately)

* Textual IR changes only. Bitcode (including upgrade) and changing the
  in-memory representation will be in separate changes.

* geps of vectors are transformed as:
    getelementptr <4 x float*> %x, ...
  ->getelementptr float, <4 x float*> %x, ...
  Then, once the opaque pointer type is introduced, this will ultimately look
  like:
    getelementptr float, <4 x ptr> %x
  with the unambiguous interpretation that it is a vector of pointers to float.

* address spaces remain on the pointer, not the type:
    getelementptr float addrspace(1)* %x
  ->getelementptr float, float addrspace(1)* %x
  Then, eventually:
    getelementptr float, ptr addrspace(1) %x

Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.

update.py:
import fileinput
import sys
import re

ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile(       r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")

def conv(match, line):
  if not match:
    return line
  line = match.groups()[0]
  if len(match.groups()[5]) == 0:
    line += match.groups()[2]
  line += match.groups()[3]
  line += ", "
  line += match.groups()[1]
  line += "\n"
  return line

for line in sys.stdin:
  if line.find("getelementptr ") == line.find("getelementptr inbounds"):
    if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
      line = conv(re.match(ibrep, line), line)
  elif line.find("getelementptr ") != line.find("getelementptr ("):
    line = conv(re.match(normrep, line), line)
  sys.stdout.write(line)

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).

The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7636

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00

257 lines
12 KiB
LLVM
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; RUN: llc %s -o %t -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu -dwarf-version=4
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s -check-prefix=PRESENT
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s -check-prefix=ABSENT
; RUN: llc %s -o %t -filetype=obj -O0 -mtriple=x86_64-apple-darwin -dwarf-version=4
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s -check-prefix=DARWINP
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s -check-prefix=DARWINA
; Verify that attributes we do want are PRESENT;
; verify that attributes we don't want are ABSENT.
; It's a lot easier to do this in two passes than in one.
; PR14471
; LLVM IR generated using: clang -emit-llvm -S -g
; (with the Clang part of this patch applied).
;
; class C
; {
; static int a;
; const static bool const_a = true;
; protected:
; static int b;
; const static float const_b = 3.14;
; public:
; static int c;
; const static int const_c = 18;
; int d;
; };
;
; int C::a = 4;
; int C::b = 2;
; int C::c = 1;
;
; int main()
; {
; C instance_C;
; instance_C.d = 8;
; return C::c;
; }
%class.C = type { i32 }
@_ZN1C1aE = global i32 4, align 4
@_ZN1C1bE = global i32 2, align 4
@_ZN1C1cE = global i32 1, align 4
define i32 @main() nounwind uwtable {
entry:
%retval = alloca i32, align 4
%instance_C = alloca %class.C, align 4
store i32 0, i32* %retval
call void @llvm.dbg.declare(metadata %class.C* %instance_C, metadata !29, metadata !{!"0x102"}), !dbg !30
%d = getelementptr inbounds %class.C, %class.C* %instance_C, i32 0, i32 0, !dbg !31
store i32 8, i32* %d, align 4, !dbg !31
%0 = load i32* @_ZN1C1cE, align 4, !dbg !32
ret i32 %0, !dbg !32
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!34}
!0 = !{!"0x11\004\00clang version 3.3 (trunk 171914)\000\00\000\00\000", !33, !1, !1, !3, !10, !1} ; [ DW_TAG_compile_unit ] [/home/probinson/projects/upstream/static-member/test/debug-info-static-member.cpp] [DW_LANG_C_plus_plus]
!1 = !{}
!3 = !{!5}
!5 = !{!"0x2e\00main\00main\00\0018\000\001\000\006\00256\000\0023", !33, !6, !7, null, i32 ()* @main, null, null, !1} ; [ DW_TAG_subprogram ] [line 18] [def] [scope 23] [main]
!6 = !{!"0x29", !33} ; [ DW_TAG_file_type ]
!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = !{!9}
!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!10 = !{!12, !27, !28}
!12 = !{!"0x34\00a\00a\00_ZN1C1aE\0014\000\001", null, !6, !9, i32* @_ZN1C1aE, !15} ; [ DW_TAG_variable ] [a] [line 14] [def]
!13 = !{!"0x2\00C\001\0032\0032\000\000\000", !33, null, null, !14, null, null, null} ; [ DW_TAG_class_type ] [C] [line 1, size 32, align 32, offset 0] [def] [from ]
!14 = !{!15, !16, !19, !20, !23, !24, !26}
!15 = !{!"0xd\00a\003\000\000\000\004097", !33, !13, !9, null} ; [ DW_TAG_member ] [a] [line 3, size 0, align 0, offset 0] [private] [static] [from int]
!16 = !{!"0xd\00const_a\004\000\000\000\004097", !33, !13, !17, i1 true} ; [ DW_TAG_member ] [const_a] [line 4, size 0, align 0, offset 0] [private] [static] [from ]
!17 = !{!"0x26\00\000\000\000\000\000", null, null, !18} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from bool]
!18 = !{!"0x24\00bool\000\008\008\000\000\002", null, null} ; [ DW_TAG_base_type ] [bool] [line 0, size 8, align 8, offset 0, enc DW_ATE_boolean]
!19 = !{!"0xd\00b\006\000\000\000\004098", !33, !13, !9, null} ; [ DW_TAG_member ] [b] [line 6, size 0, align 0, offset 0] [protected] [static] [from int]
!20 = !{!"0xd\00const_b\007\000\000\000\004098", !33, !13, !21, float 0x40091EB860000000} ; [ DW_TAG_member ] [const_b] [line 7, size 0, align 0, offset 0] [protected] [static] [from ]
!21 = !{!"0x26\00\000\000\000\000\000", null, null, !22} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from float]
!22 = !{!"0x24\00float\000\0032\0032\000\000\004", null, null} ; [ DW_TAG_base_type ] [float] [line 0, size 32, align 32, offset 0, enc DW_ATE_float]
!23 = !{!"0xd\00c\009\000\000\000\004099", !33, !13, !9, null} ; [ DW_TAG_member ] [c] [line 9, size 0, align 0, offset 0] [static] [from int]
!24 = !{!"0xd\00const_c\0010\000\000\000\004099", !33, !13, !25, i32 18} ; [ DW_TAG_member ] [const_c] [line 10, size 0, align 0, offset 0] [static] [from ]
!25 = !{!"0x26\00\000\000\000\000\000", null, null, !9} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from int]
!26 = !{!"0xd\00d\0011\0032\0032\000\003", !33, !13, !9} ; [ DW_TAG_member ] [d] [line 11, size 32, align 32, offset 0] [from int]
!27 = !{!"0x34\00b\00b\00_ZN1C1bE\0015\000\001", null, !6, !9, i32* @_ZN1C1bE, !19} ; [ DW_TAG_variable ] [b] [line 15] [def]
!28 = !{!"0x34\00c\00c\00_ZN1C1cE\0016\000\001", null, !6, !9, i32* @_ZN1C1cE, !23} ; [ DW_TAG_variable ] [c] [line 16] [def]
!29 = !{!"0x100\00instance_C\0020\000", !5, !6, !13} ; [ DW_TAG_auto_variable ] [instance_C] [line 20]
!30 = !MDLocation(line: 20, scope: !5)
!31 = !MDLocation(line: 21, scope: !5)
!32 = !MDLocation(line: 22, scope: !5)
!33 = !{!"/usr/local/google/home/blaikie/Development/llvm/src/tools/clang/test/CodeGenCXX/debug-info-static-member.cpp", !"/home/blaikie/local/Development/llvm/build/clang/x86-64/Debug/llvm"}
; PRESENT verifies that static member declarations have these attributes:
; external, declaration, accessibility, and either DW_AT_MIPS_linkage_name
; (for variables) or DW_AT_const_value (for constants).
;
; PRESENT: .debug_info contents:
; PRESENT: DW_TAG_variable
; PRESENT-NEXT: DW_AT_specification {{.*}} "a"
; PRESENT-NEXT: DW_AT_location
; PRESENT-NEXT: DW_AT_linkage_name {{.*}} "_ZN1C1aE"
; PRESENT: DW_TAG_class_type
; PRESENT-NEXT: DW_AT_name {{.*}} "C"
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "a"
; PRESENT: DW_AT_external
; PRESENT: DW_AT_declaration
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_private)
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "const_a"
; PRESENT: DW_AT_external
; PRESENT: DW_AT_declaration
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_private)
; PRESENT: DW_AT_const_value {{.*}} (1)
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "b"
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_protected)
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "const_b"
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_protected)
; PRESENT: DW_AT_const_value [DW_FORM_udata] (1078523331)
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "c"
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "const_c"
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
; PRESENT: DW_AT_const_value {{.*}} (18)
; While we're here, a normal member has data_member_location and
; accessibility attributes.
; PRESENT: DW_TAG_member
; PRESENT-NEXT: DW_AT_name {{.*}} "d"
; PRESENT: DW_AT_data_member_location
; PRESENT: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
; PRESENT: NULL
; Definitions point back to their declarations, and have a location.
; PRESENT: DW_TAG_variable
; PRESENT-NEXT: DW_AT_specification {{.*}} "b"
; PRESENT-NEXT: DW_AT_location
; PRESENT-NEXT: DW_AT_linkage_name {{.*}} "_ZN1C1bE"
; PRESENT: DW_TAG_variable
; PRESENT-NEXT: DW_AT_specification {{.*}} "c"
; PRESENT-NEXT: DW_AT_location
; PRESENT-NEXT: DW_AT_linkage_name {{.*}} "_ZN1C1cE"
; For Darwin gdb:
; DARWINP: .debug_info contents:
; DARWINP: DW_TAG_variable
; DARWINP-NEXT: DW_AT_specification {{.*}} "a"
; DARWINP-NEXT: DW_AT_location
; DARWINP-NEXT: DW_AT_linkage_name {{.*}} "_ZN1C1aE"
; DARWINP: DW_TAG_class_type
; DARWINP-NEXT: DW_AT_name {{.*}} "C"
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "a"
; DARWINP: DW_AT_external
; DARWINP: DW_AT_declaration
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_private)
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "const_a"
; DARWINP: DW_AT_external
; DARWINP: DW_AT_declaration
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_private)
; DARWINP: DW_AT_const_value {{.*}} (1)
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "b"
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_protected)
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "const_b"
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_protected)
; DARWINP: DW_AT_const_value [DW_FORM_udata] (1078523331)
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "c"
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "const_c"
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
; DARWINP: DW_AT_const_value {{.*}} (18)
; While we're here, a normal member has data_member_location and
; accessibility attributes.
; DARWINP: DW_TAG_member
; DARWINP-NEXT: DW_AT_name {{.*}} "d"
; DARWINP: DW_AT_data_member_location
; DARWINP: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
; DARWINP: NULL
; Definitions point back to their declarations, and have a location.
; DARWINP: DW_TAG_variable
; DARWINP-NEXT: DW_AT_specification {{.*}} "b"
; DARWINP-NEXT: DW_AT_location
; DARWINP-NEXT: DW_AT_linkage_name {{.*}} "_ZN1C1bE"
; DARWINP: DW_TAG_variable
; DARWINP-NEXT: DW_AT_specification {{.*}} "c"
; DARWINP-NEXT: DW_AT_location
; DARWINP-NEXT: DW_AT_linkage_name {{.*}} "_ZN1C1cE"
; ABSENT verifies that static member declarations do not have either
; DW_AT_location or DW_AT_data_member_location; also, variables do not
; have DW_AT_const_value and constants do not have DW_AT_linkage_name.
;
; ABSENT: .debug_info contents:
; ABSENT: DW_TAG_member
; ABSENT: DW_AT_name {{.*}} "a"
; ABSENT-NOT: DW_AT_const_value
; ABSENT-NOT: location
; ABSENT: DW_AT_name {{.*}} "const_a"
; ABSENT-NOT: DW_AT_linkage_name
; ABSENT-NOT: location
; ABSENT: DW_AT_name {{.*}} "b"
; ABSENT-NOT: DW_AT_const_value
; ABSENT-NOT: location
; ABSENT: DW_AT_name {{.*}} "const_b"
; ABSENT-NOT: DW_AT_linkage_name
; ABSENT-NOT: location
; ABSENT: DW_AT_name {{.*}} "c"
; ABSENT-NOT: DW_AT_const_value
; ABSENT-NOT: location
; ABSENT: DW_AT_name {{.*}} "const_c"
; ABSENT-NOT: DW_AT_linkage_name
; ABSENT-NOT: location
; While we're here, a normal member does not have a linkage name, constant
; value, or DW_AT_location.
; ABSENT: DW_AT_name {{.*}} "d"
; ABSENT-NOT: DW_AT_linkage_name
; ABSENT-NOT: DW_AT_const_value
; ABSENT-NOT: DW_AT_location
; ABSENT: NULL
; For Darwin gdb:
; DARWINA: .debug_info contents:
; DARWINA: DW_TAG_member
; DARWINA: DW_AT_name {{.*}} "a"
; DARWINA-NOT: DW_AT_const_value
; DARWINA-NOT: location
; DARWINA: DW_AT_name {{.*}} "const_a"
; DARWINA-NOT: DW_AT_linkage_name
; DARWINA-NOT: location
; DARWINA: DW_AT_name {{.*}} "b"
; DARWINA-NOT: DW_AT_const_value
; DARWINA-NOT: location
; DARWINA: DW_AT_name {{.*}} "const_b"
; DARWINA-NOT: DW_AT_linkage_name
; DARWINA-NOT: location
; DARWINA: DW_AT_name {{.*}} "c"
; DARWINA-NOT: DW_AT_const_value
; DARWINA-NOT: location
; DARWINA: DW_AT_name {{.*}} "const_c"
; DARWINA-NOT: DW_AT_linkage_name
; DARWINA-NOT: location
; While we're here, a normal member does not have a linkage name, constant
; value, or DW_AT_location.
; DARWINA: DW_AT_name {{.*}} "d"
; DARWINA-NOT: DW_AT_linkage_name
; DARWINA-NOT: DW_AT_const_value
; DARWINA-NOT: DW_AT_location
; DARWINA: NULL
!34 = !{i32 1, !"Debug Info Version", i32 2}
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