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Leslie Zhai via llvm-dev

2017-Aug-21 03:31 UTC

[llvm-dev] DragonEgg for GCC v8.x and LLVM v6.x is just able to work

Hi LLVM and GCC developers,

My sincere thanks will goto:

* Duncan, the core developer of llvm-gcc and dragonegg 
http://llvm.org/devmtg/2009-10/Sands_LLVMGCCPlugin.pdf

* David, the innovator and developer of GCC 
https://dmalcolm.fedorapeople.org/gcc/global-state/requirements.html

and others who give me kind response for teaching me patiently and 
carefully about how to migrate GCC v4.8.x to GCC v8.x (git-20170818)

DragonEgg has been migrated to GCC v8.x and LLVM v6.x (svn-r311142), but 
also able to work for GCC v4.8.x and LLVM v3.3 
https://reviews.llvm.org/D35667 and it is just able to work now, for 
example:


CC=/opt/gcc-git/bin/gcc

LC=/opt/llvm-svn/bin/llvm-config

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$($LC --libdir)

GCC=$CC LLVM_CONFIG=$LC ENABLE_LLVM_PLUGINS=1 DRAGONEGG_DEBUG=1 make -j4


$CC -fplugin=./dragonegg.so \
         -fplugin-arg-dragonegg-debug-pass-arguments \
         -ftime-report \
         -fverbose-asm \
         -fplugin-arg-dragonegg-enable-gcc-optzns \
         -fplugin-arg-dragonegg-emit-ir \
         -S \
         test/hello.c \
         -wrapper gdb,--args


hello.s (LLVM IR, the extension name is not important)

; ModuleID = 'test/hello.c'
source_filename = "test/hello.c"
target triple = "x86_64-redhat-linux"

module asm "\09.ident\09\22GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1) 
LLVM: 3.9.1\22"

@__func__.2210 = internal local_unnamed_addr constant [4 x i8]
c"foo\00"
@.cst = private local_unnamed_addr constant [24 x i8] c"DEBUG: %s, line 
%d: %s\0A\00", align 8
@.cst.1 = private local_unnamed_addr constant [13 x i8] 
c"test/hello.c\00", align 8
@.cst.2 = private local_unnamed_addr constant [12 x i8] c"Leslie 
Zhai\00", align 8
@.cst.3 = private local_unnamed_addr constant [20 x i8] c"%s: Hello 
World %d\0A\00", align 8

; Function Attrs: nounwind uwtable
define void @foo(...) unnamed_addr #0 {
entry:
   %"ssa point" = bitcast i32 0 to i32
   br label %"<bb 2>"

"<bb 2>":                                         ; preds =
%entry
   %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds 
([24 x i8], [24 x i8]* @.cst, i64 0, i64 0), [13 x i8]* @.cst.1, i32 4, 
[4 x i8]* @__func__.2210) #1
   br label %return

return:                                           ; preds = %"<bb
2>"
   ret void
}

declare i32 @printf(i8*, ...)

; Function Attrs: nounwind uwtable
define i32 @main(i32 %argc, i8** %argv) unnamed_addr #0 {
entry:
   %argc_addr = alloca i32, align 4
   %argv_addr = alloca i8**, align 8
   %n = alloca i32
   %s = alloca i8*
   %"<retval>" = alloca i32
   %"alloca point" = bitcast i32 0 to i32
   store i32 %argc, i32* %argc_addr, align 1
   store i8** %argv, i8*** %argv_addr, align 1
   %"ssa point" = bitcast i32 0 to i32
   br label %"<bb 2>"

"<bb 2>":                                         ; preds =
%entry
   %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds 
([20 x i8], [20 x i8]* @.cst.3, i64 0, i64 0), i8* getelementptr 
inbounds ([12 x i8], [12 x i8]* @.cst.2, i64 0, i64 0), i32 1) #1
   br label %"<L0>"

"<L0>":                                           ; preds =
%"<bb 2>"
   store i32 0, i32* %"<retval>", align 1
   br label %return

return:                                           ; preds =
%"<L0>"
   %1 = load i32, i32* %"<retval>", align 4
   ret i32 %1
}

attributes #0 = { nounwind uwtable
"no-frame-pointer-elim-non-leaf"="true" }
attributes #1 = { nounwind }

!llvm.module.flags = !{!0}

!0 = !{i32 1, !"PIE Level", i32 2}


$ llc hello.s

     .text
     .file    "hello.s"
                                         # Start of file scope inline 
assembly
     .ident    "GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1) LLVM:
3.9.1"

                                         # End of file scope inline assembly
     .globl    foo
     .p2align    4, 0x90
     .type    foo, at function
foo:                                    # @foo
     .cfi_startproc
# BB#0:                                 # %entry
     pushq    %rbp
.Ltmp0:
     .cfi_def_cfa_offset 16
.Ltmp1:
     .cfi_offset %rbp, -16
     movq    %rsp, %rbp
.Ltmp2:
     .cfi_def_cfa_register %rbp
     movl    $.L.cst, %edi
     movl    $.L.cst.1, %esi
     movl    $4, %edx
     movl    $__func__.2210, %ecx
     xorl    %eax, %eax
     callq    printf
     popq    %rbp
     retq
.Lfunc_end0:
     .size    foo, .Lfunc_end0-foo
     .cfi_endproc

     .globl    main
     .p2align    4, 0x90
     .type    main, at function
main:                                   # @main
     .cfi_startproc
# BB#0:                                 # %entry
     pushq    %rbp
.Ltmp3:
     .cfi_def_cfa_offset 16
.Ltmp4:
     .cfi_offset %rbp, -16
     movq    %rsp, %rbp
.Ltmp5:
     .cfi_def_cfa_register %rbp
     subq    $32, %rsp
     movl    %edi, -8(%rbp)
     movq    %rsi, -16(%rbp)
     movl    $.L.cst.3, %edi
     movl    $.L.cst.2, %esi
     movl    $1, %edx
     xorl    %eax, %eax
     callq    printf
     movl    $0, -4(%rbp)
     movl    -4(%rbp), %eax
     addq    $32, %rsp
     popq    %rbp
     retq
.Lfunc_end1:
     .size    main, .Lfunc_end1-main
     .cfi_endproc

     .type    __func__.2210, at object   # @__func__.2210
     .section    .rodata,"a", at progbits
__func__.2210:
     .asciz    "foo"
     .size    __func__.2210, 4

     .type    .L.cst, at object          # @.cst
     .p2align    3
.L.cst:
     .asciz    "DEBUG: %s, line %d: %s\n"
     .size    .L.cst, 24

     .type    .L.cst.1, at object        # @.cst.1
     .p2align    3
.L.cst.1:
     .asciz    "test/hello.c"
     .size    .L.cst.1, 13

     .type    .L.cst.2, at object        # @.cst.2
     .p2align    3
.L.cst.2:
     .asciz    "Leslie Zhai"
     .size    .L.cst.2, 12

     .type    .L.cst.3, at object        # @.cst.3
     .p2align    3
.L.cst.3:
     .asciz    "%s: Hello World %d\n"
     .size    .L.cst.3, 20


     .section    ".note.GNU-stack","", at progbits


$ clang hello.s.s

$ ./a.out

Leslie Zhai: Hello World 1


WIP:

* fix issues https://github.com/xiangzhai/dragonegg/issues

* gengtype not support macro 
https://gcc.gnu.org/ml/gcc/2017-07/msg00045.html

-- 
Regards,
Leslie Zhai - a LLVM developer https://reviews.llvm.org/p/xiangzhai/

Tobias Grosser via llvm-dev

2017-Aug-21 10:42 UTC

head link

[llvm-dev] DragonEgg for GCC v8.x and LLVM v6.x is just able to work

On Mon, Aug 21, 2017, at 05:31, Leslie Zhai via llvm-dev
wrote:> Hi LLVM and GCC developers,
> 
> My sincere thanks will goto:
> 
> * Duncan, the core developer of llvm-gcc and dragonegg 
> http://llvm.org/devmtg/2009-10/Sands_LLVMGCCPlugin.pdf
> 
> * David, the innovator and developer of GCC 
> https://dmalcolm.fedorapeople.org/gcc/global-state/requirements.html
> 
> and others who give me kind response for teaching me patiently and 
> carefully about how to migrate GCC v4.8.x to GCC v8.x (git-20170818)
> 
> DragonEgg has been migrated to GCC v8.x and LLVM v6.x (svn-r311142), but 
> also able to work for GCC v4.8.x and LLVM v3.3 
> https://reviews.llvm.org/D35667 and it is just able to work now, for 
> example:
Very interesting. We are still using dragonegg to process our weather
modeling codes here at ETH / CSCS. Having it updated to work with latest
LLVM will provide us with a current baseline which will also be helpful
to evaluate flang further. Thanks a lot for your effort.

Best,
Tobias

PS: Would be great to have a flang update on the mailing list as well. I
will ask for this in a separate email.
> 
> 
> $CC -fplugin=./dragonegg.so \
>          -fplugin-arg-dragonegg-debug-pass-arguments \
>          -ftime-report \
>          -fverbose-asm \
>          -fplugin-arg-dragonegg-enable-gcc-optzns \
>          -fplugin-arg-dragonegg-emit-ir \
>          -S \
>          test/hello.c \
>          -wrapper gdb,--args
> 
> 
> hello.s (LLVM IR, the extension name is not important)
> 
> ; ModuleID = 'test/hello.c'
> source_filename = "test/hello.c"
> target triple = "x86_64-redhat-linux"
> 
> module asm "\09.ident\09\22GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1)
> LLVM: 3.9.1\22"
> 
> @__func__.2210 = internal local_unnamed_addr constant [4 x i8]
c"foo\00"
> @.cst = private local_unnamed_addr constant [24 x i8] c"DEBUG: %s,
line
> %d: %s\0A\00", align 8
> @.cst.1 = private local_unnamed_addr constant [13 x i8] 
> c"test/hello.c\00", align 8
> @.cst.2 = private local_unnamed_addr constant [12 x i8] c"Leslie 
> Zhai\00", align 8
> @.cst.3 = private local_unnamed_addr constant [20 x i8] c"%s: Hello 
> World %d\0A\00", align 8
> 
> ; Function Attrs: nounwind uwtable
> define void @foo(...) unnamed_addr #0 {
> entry:
>    %"ssa point" = bitcast i32 0 to i32
>    br label %"<bb 2>"
> 
> "<bb 2>":                                         ; preds =
%entry
>    %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds 
> ([24 x i8], [24 x i8]* @.cst, i64 0, i64 0), [13 x i8]* @.cst.1, i32 4, 
> [4 x i8]* @__func__.2210) #1
>    br label %return
> 
> return:                                           ; preds = %"<bb
2>"
>    ret void
> }
> 
> declare i32 @printf(i8*, ...)
> 
> ; Function Attrs: nounwind uwtable
> define i32 @main(i32 %argc, i8** %argv) unnamed_addr #0 {
> entry:
>    %argc_addr = alloca i32, align 4
>    %argv_addr = alloca i8**, align 8
>    %n = alloca i32
>    %s = alloca i8*
>    %"<retval>" = alloca i32
>    %"alloca point" = bitcast i32 0 to i32
>    store i32 %argc, i32* %argc_addr, align 1
>    store i8** %argv, i8*** %argv_addr, align 1
>    %"ssa point" = bitcast i32 0 to i32
>    br label %"<bb 2>"
> 
> "<bb 2>":                                         ; preds =
%entry
>    %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds 
> ([20 x i8], [20 x i8]* @.cst.3, i64 0, i64 0), i8* getelementptr 
> inbounds ([12 x i8], [12 x i8]* @.cst.2, i64 0, i64 0), i32 1) #1
>    br label %"<L0>"
> 
> "<L0>":                                           ; preds =
%"<bb 2>"
>    store i32 0, i32* %"<retval>", align 1
>    br label %return
> 
> return:                                           ; preds =
%"<L0>"
>    %1 = load i32, i32* %"<retval>", align 4
>    ret i32 %1
> }
> 
> attributes #0 = { nounwind uwtable
> "no-frame-pointer-elim-non-leaf"="true" }
> attributes #1 = { nounwind }
> 
> !llvm.module.flags = !{!0}
> 
> !0 = !{i32 1, !"PIE Level", i32 2}
> 
> 
> $ llc hello.s
> 
>      .text
>      .file    "hello.s"
>                                          # Start of file scope inline 
> assembly
>      .ident    "GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1) LLVM:
3.9.1"
> 
>                                          # End of file scope inline
>                                          assembly
>      .globl    foo
>      .p2align    4, 0x90
>      .type    foo, at function
> foo:                                    # @foo
>      .cfi_startproc
> # BB#0:                                 # %entry
>      pushq    %rbp
> .Ltmp0:
>      .cfi_def_cfa_offset 16
> .Ltmp1:
>      .cfi_offset %rbp, -16
>      movq    %rsp, %rbp
> .Ltmp2:
>      .cfi_def_cfa_register %rbp
>      movl    $.L.cst, %edi
>      movl    $.L.cst.1, %esi
>      movl    $4, %edx
>      movl    $__func__.2210, %ecx
>      xorl    %eax, %eax
>      callq    printf
>      popq    %rbp
>      retq
> .Lfunc_end0:
>      .size    foo, .Lfunc_end0-foo
>      .cfi_endproc
> 
>      .globl    main
>      .p2align    4, 0x90
>      .type    main, at function
> main:                                   # @main
>      .cfi_startproc
> # BB#0:                                 # %entry
>      pushq    %rbp
> .Ltmp3:
>      .cfi_def_cfa_offset 16
> .Ltmp4:
>      .cfi_offset %rbp, -16
>      movq    %rsp, %rbp
> .Ltmp5:
>      .cfi_def_cfa_register %rbp
>      subq    $32, %rsp
>      movl    %edi, -8(%rbp)
>      movq    %rsi, -16(%rbp)
>      movl    $.L.cst.3, %edi
>      movl    $.L.cst.2, %esi
>      movl    $1, %edx
>      xorl    %eax, %eax
>      callq    printf
>      movl    $0, -4(%rbp)
>      movl    -4(%rbp), %eax
>      addq    $32, %rsp
>      popq    %rbp
>      retq
> .Lfunc_end1:
>      .size    main, .Lfunc_end1-main
>      .cfi_endproc
> 
>      .type    __func__.2210, at object   # @__func__.2210
>      .section    .rodata,"a", at progbits
> __func__.2210:
>      .asciz    "foo"
>      .size    __func__.2210, 4
> 
>      .type    .L.cst, at object          # @.cst
>      .p2align    3
> .L.cst:
>      .asciz    "DEBUG: %s, line %d: %s\n"
>      .size    .L.cst, 24
> 
>      .type    .L.cst.1, at object        # @.cst.1
>      .p2align    3
> .L.cst.1:
>      .asciz    "test/hello.c"
>      .size    .L.cst.1, 13
> 
>      .type    .L.cst.2, at object        # @.cst.2
>      .p2align    3
> .L.cst.2:
>      .asciz    "Leslie Zhai"
>      .size    .L.cst.2, 12
> 
>      .type    .L.cst.3, at object        # @.cst.3
>      .p2align    3
> .L.cst.3:
>      .asciz    "%s: Hello World %d\n"
>      .size    .L.cst.3, 20
> 
> 
>      .section    ".note.GNU-stack","", at progbits
> 
> 
> $ clang hello.s.s
> 
> $ ./a.out
> 
> Leslie Zhai: Hello World 1
> 
> 
> WIP:
> 
> * fix issues https://github.com/xiangzhai/dragonegg/issues
> 
> * gengtype not support macro 
> https://gcc.gnu.org/ml/gcc/2017-07/msg00045.html
> 
> -- 
> Regards,
> Leslie Zhai - a LLVM developer https://reviews.llvm.org/p/xiangzhai/
> 
> 
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

Leslie Zhai via llvm-dev

2017-Aug-22 03:48 UTC

head link

[llvm-dev] DragonEgg for GCC v8.x and LLVM v6.x is just able to work

Hi Tobias,

Thanks for your kind response!


在 2017年08月21日 18:42, Tobias Grosser 写道:> On Mon, Aug 21, 2017, at 05:31, Leslie Zhai via llvm-dev wrote:
>> Hi LLVM and GCC developers,
>>
>> My sincere thanks will goto:
>>
>> * Duncan, the core developer of llvm-gcc and dragonegg
>> http://llvm.org/devmtg/2009-10/Sands_LLVMGCCPlugin.pdf
>>
>> * David, the innovator and developer of GCC
>> https://dmalcolm.fedorapeople.org/gcc/global-state/requirements.html
>>
>> and others who give me kind response for teaching me patiently and
>> carefully about how to migrate GCC v4.8.x to GCC v8.x (git-20170818)
>>
>> DragonEgg has been migrated to GCC v8.x and LLVM v6.x (svn-r311142),
but
>> also able to work for GCC v4.8.x and LLVM v3.3
>> https://reviews.llvm.org/D35667 and it is just able to work now, for
>> example:
> Very interesting. We are still using dragonegg to process our weather
> modeling codes here at ETH / CSCS. Having it updated to work with latest
> LLVM will provide us with a current baseline which will also be helpful
> to evaluate flang further. Thanks a lot for your effort.GIMPLE -> LLVM IR is just able to work, but Target (x86 
https://github.com/xiangzhai/dragonegg/tree/master/src/x86   or arm, 
mips) hasn't been migrated yet, so at present it works as:

GCC Frontend -> GIMPLE -> LLVM IR

so it needs llc for LLVM IR -> Assembly (Target depended)

and I am maintaining AVR Target recently, for example: Migrate to new 
MCAsmBackend applyFixup and processFixupValue 
https://reviews.llvm.org/D34551  I am considering how to reuse LLVM's 
lib/Target for supporting more chipset and write less (Target for 
DragonEgg) by myself :)

>
> Best,
> Tobias
>
> PS: Would be great to have a flang update on the mailing list as well. I
> will ask for this in a separate email.I also migrated flang-clang to LLVM 6.0.0svn-r311323 and waiting for 
rebase the patch 
https://github.com/flang-compiler/clang/pull/28#issuecomment-323147978

>
>>
>> $CC -fplugin=./dragonegg.so \
>>           -fplugin-arg-dragonegg-debug-pass-arguments \
>>           -ftime-report \
>>           -fverbose-asm \
>>           -fplugin-arg-dragonegg-enable-gcc-optzns \
>>           -fplugin-arg-dragonegg-emit-ir \
>>           -S \
>>           test/hello.c \
>>           -wrapper gdb,--args
>>
>>
>> hello.s (LLVM IR, the extension name is not important)
>>
>> ; ModuleID = 'test/hello.c'
>> source_filename = "test/hello.c"
>> target triple = "x86_64-redhat-linux"
>>
>> module asm "\09.ident\09\22GCC: (GNU) 6.4.1 20170727 (Red Hat
6.4.1-1)
>> LLVM: 3.9.1\22"
>>
>> @__func__.2210 = internal local_unnamed_addr constant [4 x i8]
c"foo\00"
>> @.cst = private local_unnamed_addr constant [24 x i8] c"DEBUG: %s,
line
>> %d: %s\0A\00", align 8
>> @.cst.1 = private local_unnamed_addr constant [13 x i8]
>> c"test/hello.c\00", align 8
>> @.cst.2 = private local_unnamed_addr constant [12 x i8] c"Leslie
>> Zhai\00", align 8
>> @.cst.3 = private local_unnamed_addr constant [20 x i8] c"%s:
Hello
>> World %d\0A\00", align 8
>>
>> ; Function Attrs: nounwind uwtable
>> define void @foo(...) unnamed_addr #0 {
>> entry:
>>     %"ssa point" = bitcast i32 0 to i32
>>     br label %"<bb 2>"
>>
>> "<bb 2>":                                         ;
preds = %entry
>>     %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds
>> ([24 x i8], [24 x i8]* @.cst, i64 0, i64 0), [13 x i8]* @.cst.1, i32 4,
>> [4 x i8]* @__func__.2210) #1
>>     br label %return
>>
>> return:                                           ; preds =
%"<bb 2>"
>>     ret void
>> }
>>
>> declare i32 @printf(i8*, ...)
>>
>> ; Function Attrs: nounwind uwtable
>> define i32 @main(i32 %argc, i8** %argv) unnamed_addr #0 {
>> entry:
>>     %argc_addr = alloca i32, align 4
>>     %argv_addr = alloca i8**, align 8
>>     %n = alloca i32
>>     %s = alloca i8*
>>     %"<retval>" = alloca i32
>>     %"alloca point" = bitcast i32 0 to i32
>>     store i32 %argc, i32* %argc_addr, align 1
>>     store i8** %argv, i8*** %argv_addr, align 1
>>     %"ssa point" = bitcast i32 0 to i32
>>     br label %"<bb 2>"
>>
>> "<bb 2>":                                         ;
preds = %entry
>>     %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds
>> ([20 x i8], [20 x i8]* @.cst.3, i64 0, i64 0), i8* getelementptr
>> inbounds ([12 x i8], [12 x i8]* @.cst.2, i64 0, i64 0), i32 1) #1
>>     br label %"<L0>"
>>
>> "<L0>":                                           ;
preds = %"<bb 2>"
>>     store i32 0, i32* %"<retval>", align 1
>>     br label %return
>>
>> return:                                           ; preds =
%"<L0>"
>>     %1 = load i32, i32* %"<retval>", align 4
>>     ret i32 %1
>> }
>>
>> attributes #0 = { nounwind uwtable
>> "no-frame-pointer-elim-non-leaf"="true" }
>> attributes #1 = { nounwind }
>>
>> !llvm.module.flags = !{!0}
>>
>> !0 = !{i32 1, !"PIE Level", i32 2}
>>
>>
>> $ llc hello.s
>>
>>       .text
>>       .file    "hello.s"
>>                                           # Start of file scope inline
>> assembly
>>       .ident    "GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1) LLVM:
3.9.1"
>>
>>                                           # End of file scope inline
>>                                           assembly
>>       .globl    foo
>>       .p2align    4, 0x90
>>       .type    foo, at function
>> foo:                                    # @foo
>>       .cfi_startproc
>> # BB#0:                                 # %entry
>>       pushq    %rbp
>> .Ltmp0:
>>       .cfi_def_cfa_offset 16
>> .Ltmp1:
>>       .cfi_offset %rbp, -16
>>       movq    %rsp, %rbp
>> .Ltmp2:
>>       .cfi_def_cfa_register %rbp
>>       movl    $.L.cst, %edi
>>       movl    $.L.cst.1, %esi
>>       movl    $4, %edx
>>       movl    $__func__.2210, %ecx
>>       xorl    %eax, %eax
>>       callq    printf
>>       popq    %rbp
>>       retq
>> .Lfunc_end0:
>>       .size    foo, .Lfunc_end0-foo
>>       .cfi_endproc
>>
>>       .globl    main
>>       .p2align    4, 0x90
>>       .type    main, at function
>> main:                                   # @main
>>       .cfi_startproc
>> # BB#0:                                 # %entry
>>       pushq    %rbp
>> .Ltmp3:
>>       .cfi_def_cfa_offset 16
>> .Ltmp4:
>>       .cfi_offset %rbp, -16
>>       movq    %rsp, %rbp
>> .Ltmp5:
>>       .cfi_def_cfa_register %rbp
>>       subq    $32, %rsp
>>       movl    %edi, -8(%rbp)
>>       movq    %rsi, -16(%rbp)
>>       movl    $.L.cst.3, %edi
>>       movl    $.L.cst.2, %esi
>>       movl    $1, %edx
>>       xorl    %eax, %eax
>>       callq    printf
>>       movl    $0, -4(%rbp)
>>       movl    -4(%rbp), %eax
>>       addq    $32, %rsp
>>       popq    %rbp
>>       retq
>> .Lfunc_end1:
>>       .size    main, .Lfunc_end1-main
>>       .cfi_endproc
>>
>>       .type    __func__.2210, at object   # @__func__.2210
>>       .section    .rodata,"a", at progbits
>> __func__.2210:
>>       .asciz    "foo"
>>       .size    __func__.2210, 4
>>
>>       .type    .L.cst, at object          # @.cst
>>       .p2align    3
>> .L.cst:
>>       .asciz    "DEBUG: %s, line %d: %s\n"
>>       .size    .L.cst, 24
>>
>>       .type    .L.cst.1, at object        # @.cst.1
>>       .p2align    3
>> .L.cst.1:
>>       .asciz    "test/hello.c"
>>       .size    .L.cst.1, 13
>>
>>       .type    .L.cst.2, at object        # @.cst.2
>>       .p2align    3
>> .L.cst.2:
>>       .asciz    "Leslie Zhai"
>>       .size    .L.cst.2, 12
>>
>>       .type    .L.cst.3, at object        # @.cst.3
>>       .p2align    3
>> .L.cst.3:
>>       .asciz    "%s: Hello World %d\n"
>>       .size    .L.cst.3, 20
>>
>>
>>       .section    ".note.GNU-stack","", at progbits
>>
>>
>> $ clang hello.s.s
>>
>> $ ./a.out
>>
>> Leslie Zhai: Hello World 1
>>
>>
>> WIP:
>>
>> * fix issues https://github.com/xiangzhai/dragonegg/issues
>>
>> * gengtype not support macro
>> https://gcc.gnu.org/ml/gcc/2017-07/msg00045.html
>>
>> -- 
>> Regards,
>> Leslie Zhai - a LLVM developer https://reviews.llvm.org/p/xiangzhai/
>>
>>
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
-- 
Regards,
Leslie Zhai - a LLVM developer https://reviews.llvm.org/p/xiangzhai/

Leslie Zhai via llvm-dev

2017-Sep-05 03:13 UTC

head link

[llvm-dev] DragonEgg for GCC v8.x and LLVM v6.x is just able to work

Hi LLVM and GCC developers,

LLVM China  http://www.llvm.org.cn  forked DragonEgg 
https://github.com/LLVM-China/dragonegg  because:

* Some subprojects are impractical or uninteresting to relicense (e.g. 
llvm-gcc  and dragonegg). These will be split off from the LLVM project 
(e.g. to separate Github projects), allowing interested people to 
continue their development elsewhere. 
http://lists.llvm.org/pipermail/llvm-dev/2017-August/116266.html

* There are a lot of issues 
https://github.com/xiangzhai/dragonegg/issues  so I need smarter 
developers' help.


在 2017年08月21日 11:31, Leslie Zhai 写道:> Hi LLVM and GCC developers,
>
> My sincere thanks will goto:
>
> * Duncan, the core developer of llvm-gcc and dragonegg 
> http://llvm.org/devmtg/2009-10/Sands_LLVMGCCPlugin.pdf
>
> * David, the innovator and developer of GCC 
> https://dmalcolm.fedorapeople.org/gcc/global-state/requirements.html
>
> and others who give me kind response for teaching me patiently and 
> carefully about how to migrate GCC v4.8.x to GCC v8.x (git-20170818)
>
> DragonEgg has been migrated to GCC v8.x and LLVM v6.x (svn-r311142), 
> but also able to work for GCC v4.8.x and LLVM v3.3 
> https://reviews.llvm.org/D35667 and it is just able to work now, for 
> example:
>
>
> CC=/opt/gcc-git/bin/gcc
>
> LC=/opt/llvm-svn/bin/llvm-config
>
> export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$($LC --libdir)
>
> GCC=$CC LLVM_CONFIG=$LC ENABLE_LLVM_PLUGINS=1 DRAGONEGG_DEBUG=1 make -j4
>
>
> $CC -fplugin=./dragonegg.so \
>         -fplugin-arg-dragonegg-debug-pass-arguments \
>         -ftime-report \
>         -fverbose-asm \
>         -fplugin-arg-dragonegg-enable-gcc-optzns \
>         -fplugin-arg-dragonegg-emit-ir \
>         -S \
>         test/hello.c \
>         -wrapper gdb,--args
>
>
> hello.s (LLVM IR, the extension name is not important)
>
> ; ModuleID = 'test/hello.c'
> source_filename = "test/hello.c"
> target triple = "x86_64-redhat-linux"
>
> module asm "\09.ident\09\22GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1)
> LLVM: 3.9.1\22"
>
> @__func__.2210 = internal local_unnamed_addr constant [4 x i8]
c"foo\00"
> @.cst = private local_unnamed_addr constant [24 x i8] c"DEBUG: %s, 
> line %d: %s\0A\00", align 8
> @.cst.1 = private local_unnamed_addr constant [13 x i8] 
> c"test/hello.c\00", align 8
> @.cst.2 = private local_unnamed_addr constant [12 x i8] c"Leslie 
> Zhai\00", align 8
> @.cst.3 = private local_unnamed_addr constant [20 x i8] c"%s: Hello 
> World %d\0A\00", align 8
>
> ; Function Attrs: nounwind uwtable
> define void @foo(...) unnamed_addr #0 {
> entry:
>   %"ssa point" = bitcast i32 0 to i32
>   br label %"<bb 2>"
>
> "<bb 2>":                                         ; preds =
%entry
>   %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds 
> ([24 x i8], [24 x i8]* @.cst, i64 0, i64 0), [13 x i8]* @.cst.1, i32 
> 4, [4 x i8]* @__func__.2210) #1
>   br label %return
>
> return:                                           ; preds = %"<bb
2>"
>   ret void
> }
>
> declare i32 @printf(i8*, ...)
>
> ; Function Attrs: nounwind uwtable
> define i32 @main(i32 %argc, i8** %argv) unnamed_addr #0 {
> entry:
>   %argc_addr = alloca i32, align 4
>   %argv_addr = alloca i8**, align 8
>   %n = alloca i32
>   %s = alloca i8*
>   %"<retval>" = alloca i32
>   %"alloca point" = bitcast i32 0 to i32
>   store i32 %argc, i32* %argc_addr, align 1
>   store i8** %argv, i8*** %argv_addr, align 1
>   %"ssa point" = bitcast i32 0 to i32
>   br label %"<bb 2>"
>
> "<bb 2>":                                         ; preds =
%entry
>   %0 = call i32 (i8*, ...) @printf(i8* noalias getelementptr inbounds 
> ([20 x i8], [20 x i8]* @.cst.3, i64 0, i64 0), i8* getelementptr 
> inbounds ([12 x i8], [12 x i8]* @.cst.2, i64 0, i64 0), i32 1) #1
>   br label %"<L0>"
>
> "<L0>":                                           ; preds =
%"<bb 2>"
>   store i32 0, i32* %"<retval>", align 1
>   br label %return
>
> return:                                           ; preds =
%"<L0>"
>   %1 = load i32, i32* %"<retval>", align 4
>   ret i32 %1
> }
>
> attributes #0 = { nounwind uwtable 
> "no-frame-pointer-elim-non-leaf"="true" }
> attributes #1 = { nounwind }
>
> !llvm.module.flags = !{!0}
>
> !0 = !{i32 1, !"PIE Level", i32 2}
>
>
> $ llc hello.s
>
>     .text
>     .file    "hello.s"
>                                         # Start of file scope inline 
> assembly
>     .ident    "GCC: (GNU) 6.4.1 20170727 (Red Hat 6.4.1-1) LLVM:
3.9.1"
>
>                                         # End of file scope inline 
> assembly
>     .globl    foo
>     .p2align    4, 0x90
>     .type    foo, at function
> foo:                                    # @foo
>     .cfi_startproc
> # BB#0:                                 # %entry
>     pushq    %rbp
> .Ltmp0:
>     .cfi_def_cfa_offset 16
> .Ltmp1:
>     .cfi_offset %rbp, -16
>     movq    %rsp, %rbp
> .Ltmp2:
>     .cfi_def_cfa_register %rbp
>     movl    $.L.cst, %edi
>     movl    $.L.cst.1, %esi
>     movl    $4, %edx
>     movl    $__func__.2210, %ecx
>     xorl    %eax, %eax
>     callq    printf
>     popq    %rbp
>     retq
> .Lfunc_end0:
>     .size    foo, .Lfunc_end0-foo
>     .cfi_endproc
>
>     .globl    main
>     .p2align    4, 0x90
>     .type    main, at function
> main:                                   # @main
>     .cfi_startproc
> # BB#0:                                 # %entry
>     pushq    %rbp
> .Ltmp3:
>     .cfi_def_cfa_offset 16
> .Ltmp4:
>     .cfi_offset %rbp, -16
>     movq    %rsp, %rbp
> .Ltmp5:
>     .cfi_def_cfa_register %rbp
>     subq    $32, %rsp
>     movl    %edi, -8(%rbp)
>     movq    %rsi, -16(%rbp)
>     movl    $.L.cst.3, %edi
>     movl    $.L.cst.2, %esi
>     movl    $1, %edx
>     xorl    %eax, %eax
>     callq    printf
>     movl    $0, -4(%rbp)
>     movl    -4(%rbp), %eax
>     addq    $32, %rsp
>     popq    %rbp
>     retq
> .Lfunc_end1:
>     .size    main, .Lfunc_end1-main
>     .cfi_endproc
>
>     .type    __func__.2210, at object   # @__func__.2210
>     .section    .rodata,"a", at progbits
> __func__.2210:
>     .asciz    "foo"
>     .size    __func__.2210, 4
>
>     .type    .L.cst, at object          # @.cst
>     .p2align    3
> .L.cst:
>     .asciz    "DEBUG: %s, line %d: %s\n"
>     .size    .L.cst, 24
>
>     .type    .L.cst.1, at object        # @.cst.1
>     .p2align    3
> .L.cst.1:
>     .asciz    "test/hello.c"
>     .size    .L.cst.1, 13
>
>     .type    .L.cst.2, at object        # @.cst.2
>     .p2align    3
> .L.cst.2:
>     .asciz    "Leslie Zhai"
>     .size    .L.cst.2, 12
>
>     .type    .L.cst.3, at object        # @.cst.3
>     .p2align    3
> .L.cst.3:
>     .asciz    "%s: Hello World %d\n"
>     .size    .L.cst.3, 20
>
>
>     .section    ".note.GNU-stack","", at progbits
>
>
> $ clang hello.s.s
>
> $ ./a.out
>
> Leslie Zhai: Hello World 1
>
>
> WIP:
>
> * fix issues https://github.com/xiangzhai/dragonegg/issues
>
> * gengtype not support macro 
> https://gcc.gnu.org/ml/gcc/2017-07/msg00045.html
>
-- 
Regards,
Leslie Zhai - https://reviews.llvm.org/p/xiangzhai/

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