mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-12 03:32:10 +00:00
198d8baafb
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
154 lines
6.6 KiB
LLVM
154 lines
6.6 KiB
LLVM
; RUN: llc %s -filetype=obj -O0 -mtriple=i386-unknown-linux-gnu -dwarf-version=4 -o %t
|
|
; RUN: llvm-dwarfdump %t | FileCheck %s
|
|
|
|
; From the code:
|
|
|
|
; debug-loc-offset1.cc
|
|
; int bar (int b) {
|
|
; return b+4;
|
|
; }
|
|
|
|
; debug-loc-offset2.cc
|
|
; struct A {
|
|
; int var;
|
|
; virtual char foo();
|
|
; };
|
|
|
|
; void baz(struct A a) {
|
|
; int z = 2;
|
|
; if (a.var > 2)
|
|
; z++;
|
|
; if (a.foo() == 'a')
|
|
; z++;
|
|
; }
|
|
|
|
; Compiled separately for i386-pc-linux-gnu and linked together.
|
|
; This ensures that we have multiple compile units so that we can verify that
|
|
; debug_loc entries are relative to the low_pc of the CU. The loc entry for
|
|
; the byval argument in foo.cpp is in the second CU and so should have
|
|
; an offset relative to that CU rather than from the beginning of the text
|
|
; section.
|
|
|
|
; Checking that we have two compile units with two sets of high/lo_pc.
|
|
; CHECK: .debug_info contents
|
|
; CHECK: DW_TAG_compile_unit
|
|
; CHECK: DW_AT_low_pc
|
|
; CHECK: DW_AT_high_pc
|
|
|
|
; CHECK: DW_TAG_compile_unit
|
|
; CHECK: DW_AT_low_pc
|
|
; CHECK: DW_AT_high_pc
|
|
|
|
; CHECK: DW_TAG_subprogram
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_MIPS_linkage_name [DW_FORM_strp]{{.*}}"_Z3baz1A"
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
|
; CHECK: DW_TAG_formal_parameter
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_location [DW_FORM_sec_offset] (0x00000000)
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name [DW_FORM_strp]{{.*}}"a"
|
|
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK: DW_AT_location [DW_FORM_exprloc]
|
|
; CHECK-NOT: DW_AT_location
|
|
|
|
; CHECK: .debug_loc contents:
|
|
; CHECK: 0x00000000: Beginning address offset: 0x0000000000000000
|
|
; CHECK: Ending address offset: 0x000000000000001a
|
|
|
|
%struct.A = type { i32 (...)**, i32 }
|
|
|
|
; Function Attrs: nounwind
|
|
define i32 @_Z3bari(i32 %b) #0 {
|
|
entry:
|
|
%b.addr = alloca i32, align 4
|
|
store i32 %b, i32* %b.addr, align 4
|
|
call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !21, metadata !{!"0x102"}), !dbg !22
|
|
%0 = load i32* %b.addr, align 4, !dbg !23
|
|
%add = add nsw i32 %0, 4, !dbg !23
|
|
ret i32 %add, !dbg !23
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
define void @_Z3baz1A(%struct.A* %a) #2 {
|
|
entry:
|
|
%z = alloca i32, align 4
|
|
call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !24, metadata !{!"0x102\006"}), !dbg !25
|
|
call void @llvm.dbg.declare(metadata i32* %z, metadata !26, metadata !{!"0x102"}), !dbg !27
|
|
store i32 2, i32* %z, align 4, !dbg !27
|
|
%var = getelementptr inbounds %struct.A, %struct.A* %a, i32 0, i32 1, !dbg !28
|
|
%0 = load i32* %var, align 4, !dbg !28
|
|
%cmp = icmp sgt i32 %0, 2, !dbg !28
|
|
br i1 %cmp, label %if.then, label %if.end, !dbg !28
|
|
|
|
if.then: ; preds = %entry
|
|
%1 = load i32* %z, align 4, !dbg !30
|
|
%inc = add nsw i32 %1, 1, !dbg !30
|
|
store i32 %inc, i32* %z, align 4, !dbg !30
|
|
br label %if.end, !dbg !30
|
|
|
|
if.end: ; preds = %if.then, %entry
|
|
%call = call signext i8 @_ZN1A3fooEv(%struct.A* %a), !dbg !31
|
|
%conv = sext i8 %call to i32, !dbg !31
|
|
%cmp1 = icmp eq i32 %conv, 97, !dbg !31
|
|
br i1 %cmp1, label %if.then2, label %if.end4, !dbg !31
|
|
|
|
if.then2: ; preds = %if.end
|
|
%2 = load i32* %z, align 4, !dbg !33
|
|
%inc3 = add nsw i32 %2, 1, !dbg !33
|
|
store i32 %inc3, i32* %z, align 4, !dbg !33
|
|
br label %if.end4, !dbg !33
|
|
|
|
if.end4: ; preds = %if.then2, %if.end
|
|
ret void, !dbg !34
|
|
}
|
|
|
|
declare signext i8 @_ZN1A3fooEv(%struct.A*) #2
|
|
|
|
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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 = { nounwind readnone }
|
|
attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
!llvm.dbg.cu = !{!0, !9}
|
|
!llvm.module.flags = !{!18, !19}
|
|
!llvm.ident = !{!20, !20}
|
|
|
|
!0 = !{!"0x11\004\00clang version 3.5.0 (210479)\000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/llvm_cmake_gcc/debug-loc-offset1.cc] [DW_LANG_C_plus_plus]
|
|
!1 = !{!"debug-loc-offset1.cc", !"/llvm_cmake_gcc"}
|
|
!2 = !{}
|
|
!3 = !{!4}
|
|
!4 = !{!"0x2e\00bar\00bar\00_Z3bari\001\000\001\000\006\00256\000\001", !1, !5, !6, null, i32 (i32)* @_Z3bari, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [bar]
|
|
!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/llvm_cmake_gcc/debug-loc-offset1.cc]
|
|
!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
!7 = !{!8, !8}
|
|
!8 = !{!"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]
|
|
!9 = !{!"0x11\004\00clang version 3.5.0 (210479)\000\00\000\00\001", !10, !2, !11, !13, !2, !2} ; [ DW_TAG_compile_unit ] [/llvm_cmake_gcc/debug-loc-offset2.cc] [DW_LANG_C_plus_plus]
|
|
!10 = !{!"debug-loc-offset2.cc", !"/llvm_cmake_gcc"}
|
|
!11 = !{!12}
|
|
!12 = !{!"0x13\00A\001\000\000\000\004\000", !10, null, null, null, null, null, !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 1, size 0, align 0, offset 0] [decl] [from ]
|
|
!13 = !{!14}
|
|
!14 = !{!"0x2e\00baz\00baz\00_Z3baz1A\006\000\001\000\006\00256\000\006", !10, !15, !16, null, void (%struct.A*)* @_Z3baz1A, null, null, !2} ; [ DW_TAG_subprogram ] [line 6] [def] [baz]
|
|
!15 = !{!"0x29", !10} ; [ DW_TAG_file_type ] [/llvm_cmake_gcc/debug-loc-offset2.cc]
|
|
!16 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !17, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
!17 = !{null, !12}
|
|
!18 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!19 = !{i32 2, !"Debug Info Version", i32 2}
|
|
!20 = !{!"clang version 3.5.0 (210479)"}
|
|
!21 = !{!"0x101\00b\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [b] [line 1]
|
|
!22 = !MDLocation(line: 1, scope: !4)
|
|
!23 = !MDLocation(line: 2, scope: !4)
|
|
!24 = !{!"0x101\00a\0016777222\000", !14, !15, !"_ZTS1A"} ; [ DW_TAG_arg_variable ] [a] [line 6]
|
|
!25 = !MDLocation(line: 6, scope: !14)
|
|
!26 = !{!"0x100\00z\007\000", !14, !15, !8} ; [ DW_TAG_auto_variable ] [z] [line 7]
|
|
!27 = !MDLocation(line: 7, scope: !14)
|
|
!28 = !MDLocation(line: 8, scope: !29)
|
|
!29 = !{!"0xb\008\000\000", !10, !14} ; [ DW_TAG_lexical_block ] [/llvm_cmake_gcc/debug-loc-offset2.cc]
|
|
!30 = !MDLocation(line: 9, scope: !29)
|
|
!31 = !MDLocation(line: 10, scope: !32)
|
|
!32 = !{!"0xb\0010\000\000", !10, !14} ; [ DW_TAG_lexical_block ] [/llvm_cmake_gcc/debug-loc-offset2.cc]
|
|
!33 = !MDLocation(line: 11, scope: !32)
|
|
!34 = !MDLocation(line: 12, scope: !14)
|