hi,yang: i had delete the temporary files,sorry to trouble you. it is so easy: // RUN: rm .... Regards changcheng On Wed, Aug 29, 2012 at 2:41 PM, Changcheng Wang <changcheng at multicorewareinc.com> wrote:> hi,yang: > how can i remove the temporary files? > if i can remove them,all is ok! > > yours: > > changcheng > > On Wed, Aug 29, 2012 at 2:14 PM, Changcheng Wang > <changcheng at multicorewareinc.com> wrote: >> hi,yang: >> sorry to trouble you another time,i used your example and it run >> well,but a problem came,it create severel temporary files i chaged the >> RUN: line but failed. >> i changed it like this,can you give me some suggestions? >> >> // RUN: clang %s -S -emit-llvm | llc -march=c | clang -S -emit-llvm | >> lli | FileCheck %s >> >> thanks, >> best wishes, >> >> changcheng >> >> >> On Wed, Aug 29, 2012 at 8:39 AM, Changcheng Wang >> <changcheng at multicorewareinc.com> wrote: >>> hi,yang: >>> i had realized the test. >>> thanks for your help! >>> >>> yours, >>> changcheng >>> >>> On Tue, Aug 28, 2012 at 8:58 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>> That example is a standalone one which means you can run it without >>>> extra modification. >>>> Feel free to try it. >>>> >>>> 2012/8/28 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>> hi,yang: >>>>> sorry to trouble you,i have a little question about the example you give me. >>>>> the example is a C file,can i run it without translate into a ll file? >>>>> the command line maybe like this: llvm-lit ./example.c >>>>> >>>> >>>> Yes, you can. There is no need for extra translation. >>>> >>>>> as i want to write a test to check cBackend,i want the test : >>>>> 1.translate a example.c file to example.ll file with clang. >>>>> 2.translate the example.ll file to transExample.c file with cBackend. >>>>> 3.compile the transExample.c file to transExample.bc with clang. >>>>> 4.run the transExample.bc and check the output. >>>>> >>>>> can i write the RUN: line into example.c file just like you did? >>>> >>>> I guess so. Just pay attention to file IO and stdio. If you are not >>>> sure about something, redirect IO flows to temporary files. >>>> >>>> Anyway, feel free to try. >>>> >>>>> >>>>> thanks, >>>>> your, >>>>> changcheng >>>>> >>>>> >>>>> On Tue, Aug 28, 2012 at 11:40 AM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>> Wang, >>>>>> Attachment is a simple example, you may put it in test/CodeGen, and run with >>>>>> llvm-lit C90 >>>>>> >>>>>> It worked ok in my llvm 3.2 devel. Let know if you come into any trouble. >>>>>> >>>>>> Regards. >>>>>> >>>>>> 2012/8/27 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>> hi,Yang: >>>>>>> if you can give me a examle,which check out a string(such as "abcd") >>>>>>> from a file(such as aaa.c) with fileCheck? >>>>>>> i tried to write it but failed. >>>>>>> >>>>>>> thanks for your help! >>>>>>> >>>>>>> best wished! >>>>>>> >>>>>>> changcheng >>>>>>> >>>>>>> On Wed, Aug 22, 2012 at 9:30 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>> I guess so. >>>>>>>> FileCheck has powerful extensions than just matching some strings so that >>>>>>>> it can support complex situations. >>>>>>>> >>>>>>>> 2012/8/22 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>> yeah,i see. >>>>>>>>> i thought FileCheck check if the same string in the two file,is it? >>>>>>>>> the file t.s maybe do not have the same string with %s,so FileCheck >>>>>>>>> perhaps give a fail. >>>>>>>>> i am not sure about it. >>>>>>>>> >>>>>>>>> On Wed, Aug 22, 2012 at 3:32 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>>> 2012/8/22 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>>> the example is more like what i need,it is so nice. >>>>>>>>>>> but,i am indefinite if "RUN: FileCheck < %t.s %s" can pass,i >>>>>>>>>>> understand that t.s was translate from t.ll,%s means read the local >>>>>>>>>>> source,are they the same? >>>>>>>>>> >>>>>>>>>> %t indicates a temporary file for output. ".s" is just a suffix I used >>>>>>>>>> conventionly. >>>>>>>>>> You can replace it with any string you like. >>>>>>>>>> >>>>>>>>>> See entry "tmp" in http://llvm.org/docs/TestingGuide.html#rtvars >>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Wed, Aug 22, 2012 at 1:55 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>>>>> I did an experiment just now with a test case like: >>>>>>>>>>>> // RUN: clang %s -S -emit-llvm -o %t.ll >>>>>>>>>>>> // RUN: llc %t.ll -o %t.s >>>>>>>>>>>> // RUN: FileCheck < %t.s %s >>>>>>>>>>>> >>>>>>>>>>>> ... >>>>>>>>>>>> >>>>>>>>>>>> // CHECK: ... >>>>>>>>>>>> >>>>>>>>>>>> And it worked. >>>>>>>>>>>> >>>>>>>>>>>> It seems clang does not take stdin as its input, so "clang < %s" fails. >>>>>>>>>>>> Meanwhile, both "llc < %t.ll" and "llc %t.ll" work. >>>>>>>>>>>> >>>>>>>>>>>> 2012/8/22 Triple Yang <triple.yang at gmail.com>: >>>>>>>>>>>>> 2012/8/21 Triple Yang <triple.yang at gmail.com>: >>>>>>>>>>>>>> 2012/8/21 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>>>>>>> Hi,Yang >>>>>>>>>>>>>>> thanks for your entire answer,i will do it follow you. >>>>>>>>>>>>>>> still another question puzzled me:i write a hello.c file like this: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> //RUN: llc -march=c < %s | FileCheck %s >>>>>>>>>>>>>>> #include"stdio.h" >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> int main() { >>>>>>>>>>>>>>> printf ("Helloworld.\n"); >>>>>>>>>>>>>>> return 0; >>>>>>>>>>>>>>> } >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> in fact, i want to thanslate it to a hello.ll file like this: >>>>>>>>>>>>>>> ;RUN: llc -march=c < %s | FileCheck %s >>>>>>>>>>>>>>> ....... >>>>>>>>>>>>>>> ;CHECK..... >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> but,when i thanslate the hello.c with clang,the sentence "//RUN: llc >>>>>>>>>>>>>>> -march=c < %s | FileCheck %s" was treated as comment. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> it samed the method translating hello.c to hello.ll is wrong,isnot it? >>>>>>>>>>>>>> >>>>>>>>>>>>>> To translate a .c file to a .ll file, you should wirte, for example, >>>>>>>>>>>>>> clang -emit-llvm -S test.c -o test.ll >>>>>>>>>>>>>> >>>>>>>>>>>>>> And the corresponding command for regression test might be: >>>>>>>>>>>>>> ; RUN: clang < %s -emit-llvm -S | FileCheck %s >>>>>>>>>>>>> >>>>>>>>>>>>> We can write: >>>>>>>>>>>>> // RUN: clang < %s -emit-llvm -S >>>>>>>>>>>>> in a .c file to test clang. >>>>>>>>>>>>> >>>>>>>>>>>>> And if we use FileCheck, like: >>>>>>>>>>>>> // RUN: clang < %s -emit-llvm -S | FileCheck %s >>>>>>>>>>>>> make sure there is some "// CHECK:" in that file, or lit will report a failure. >>>>>>>>>>>>> >>>>>>>>>>>>> See utils/lit/lit/ExampleTests/Clang for more details. >>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> Regards. >>>>>>>>>>>>>> >>>>>>>>>>>>>> (PS. When you reply to this email, make sure you send a copy to >>>>>>>>>>>>>> llvmdev at cs.uiuc.edu) >>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> thanks very much! >>>>>>>>>>>>>>> best wishes >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> changcheng >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Tue, Aug 21, 2012 at 10:46 AM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>>>>>>>>> Hi, changcheng, >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> There are following steps to be taken to write a test case: >>>>>>>>>>>>>>>> 1. create a directory in test, say "test/XXX" >>>>>>>>>>>>>>>> 2. create a file named lit.local.cfg, which is a configuration file. >>>>>>>>>>>>>>>> The straightforward way is to copy an existed one, >>>>>>>>>>>>>>>> like "test/CodeGen/SPARC/lit.local.cfg". You might need make some >>>>>>>>>>>>>>>> modification on it. >>>>>>>>>>>>>>>> 3. create a file, say "example.ll" >>>>>>>>>>>>>>>> (The name of file does not matter, but the suffix of the file name >>>>>>>>>>>>>>>> DOES matter. See config.suffixes = [ ... ] in lit.local.cfg) >>>>>>>>>>>>>>>> for more details. >>>>>>>>>>>>>>>> example.ll includes normal content of LLVM IR, and the ";RUN ..." >>>>>>>>>>>>>>>> directives at the beginning of the file. >>>>>>>>>>>>>>>> 4. run all regression test cases with "make check", which includes >>>>>>>>>>>>>>>> above test case newly added. >>>>>>>>>>>>>>>> Or you might want to run just that case with "llvm-lit test/XXX" >>>>>>>>>>>>>>>> or "llvm-lit test/XXX/example.ll" >>>>>>>>>>>>>>>> llvm-lit resides in BUILD tree, distinguished from source tree and >>>>>>>>>>>>>>>> install tree. You can find it under >>>>>>>>>>>>>>>> your-build-tree/Release+Asserts/bin/ or >>>>>>>>>>>>>>>> your-build-tree/Debug+Asserts/bin/ or likewise, which depends on your >>>>>>>>>>>>>>>> build >>>>>>>>>>>>>>>> configuration. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> By the way, in the following ";RUN ..." directive >>>>>>>>>>>>>>>> ; RUN: llc < %s -march=x86 | FileCheck %s >>>>>>>>>>>>>>>> %s indicates current file under test. I guess the first %s stands for >>>>>>>>>>>>>>>> the input for llc, while the second and last %s specifies >>>>>>>>>>>>>>>> what to check using "; CHECK ..." directives since you write them down >>>>>>>>>>>>>>>> on exactly CURRENT file. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Hope it work for you. >>>>>>>>>>>>>>>> Regards. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> 2012/8/20 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>>>>>>>>> hi,all: >>>>>>>>>>>>>>>>> i really want to how to write a regression test case,but i do not find >>>>>>>>>>>>>>>>> out a entire document about it. >>>>>>>>>>>>>>>>> By reading LLVM Testing Infrastructure Guide and FileCheck - Flexible >>>>>>>>>>>>>>>>> pattern matching file verifier, i only have a idea,but it is not >>>>>>>>>>>>>>>>> enough for me to write a test case.i need more detail about how to >>>>>>>>>>>>>>>>> write a RUN:lines. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> thanks for you scan,wish your letter. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> best wishes, >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> changcheng >>>>>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>>>>> LLVM Developers mailing list >>>>>>>>>>>>>>>>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>>>>>>>>>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> -- >>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> -- >>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> 杨勇勇 (Yang Yongyong) >>>> >>>> >>>> >>>> -- >>>> 杨勇勇 (Yang Yongyong)
> i had delete the temporary files,sorry to trouble you. > it is so easy: // RUN: rm ....test/Analysis/Profiling/load-branch-weights-ifs.ll could be an example. :) Regards, chenwj -- Wei-Ren Chen (陳韋任) Computer Systems Lab, Institute of Information Science, Academia Sinica, Taiwan (R.O.C.) Tel:886-2-2788-3799 #1667 Homepage: http://people.cs.nctu.edu.tw/~chenwj
aha, that's quite straightforward. 2012/8/29 Changcheng Wang <changcheng at multicorewareinc.com>:> hi,yang: > i had delete the temporary files,sorry to trouble you. > it is so easy: // RUN: rm .... > > Regards > changcheng > > On Wed, Aug 29, 2012 at 2:41 PM, Changcheng Wang > <changcheng at multicorewareinc.com> wrote: >> hi,yang: >> how can i remove the temporary files? >> if i can remove them,all is ok! >> >> yours: >> >> changcheng >> >> On Wed, Aug 29, 2012 at 2:14 PM, Changcheng Wang >> <changcheng at multicorewareinc.com> wrote: >>> hi,yang: >>> sorry to trouble you another time,i used your example and it run >>> well,but a problem came,it create severel temporary files i chaged the >>> RUN: line but failed. >>> i changed it like this,can you give me some suggestions? >>> >>> // RUN: clang %s -S -emit-llvm | llc -march=c | clang -S -emit-llvm | >>> lli | FileCheck %s >>> >>> thanks, >>> best wishes, >>> >>> changcheng >>> >>> >>> On Wed, Aug 29, 2012 at 8:39 AM, Changcheng Wang >>> <changcheng at multicorewareinc.com> wrote: >>>> hi,yang: >>>> i had realized the test. >>>> thanks for your help! >>>> >>>> yours, >>>> changcheng >>>> >>>> On Tue, Aug 28, 2012 at 8:58 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>> That example is a standalone one which means you can run it without >>>>> extra modification. >>>>> Feel free to try it. >>>>> >>>>> 2012/8/28 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>> hi,yang: >>>>>> sorry to trouble you,i have a little question about the example you give me. >>>>>> the example is a C file,can i run it without translate into a ll file? >>>>>> the command line maybe like this: llvm-lit ./example.c >>>>>> >>>>> >>>>> Yes, you can. There is no need for extra translation. >>>>> >>>>>> as i want to write a test to check cBackend,i want the test : >>>>>> 1.translate a example.c file to example.ll file with clang. >>>>>> 2.translate the example.ll file to transExample.c file with cBackend. >>>>>> 3.compile the transExample.c file to transExample.bc with clang. >>>>>> 4.run the transExample.bc and check the output. >>>>>> >>>>>> can i write the RUN: line into example.c file just like you did? >>>>> >>>>> I guess so. Just pay attention to file IO and stdio. If you are not >>>>> sure about something, redirect IO flows to temporary files. >>>>> >>>>> Anyway, feel free to try. >>>>> >>>>>> >>>>>> thanks, >>>>>> your, >>>>>> changcheng >>>>>> >>>>>> >>>>>> On Tue, Aug 28, 2012 at 11:40 AM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>> Wang, >>>>>>> Attachment is a simple example, you may put it in test/CodeGen, and run with >>>>>>> llvm-lit C90 >>>>>>> >>>>>>> It worked ok in my llvm 3.2 devel. Let know if you come into any trouble. >>>>>>> >>>>>>> Regards. >>>>>>> >>>>>>> 2012/8/27 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>> hi,Yang: >>>>>>>> if you can give me a examle,which check out a string(such as "abcd") >>>>>>>> from a file(such as aaa.c) with fileCheck? >>>>>>>> i tried to write it but failed. >>>>>>>> >>>>>>>> thanks for your help! >>>>>>>> >>>>>>>> best wished! >>>>>>>> >>>>>>>> changcheng >>>>>>>> >>>>>>>> On Wed, Aug 22, 2012 at 9:30 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>> I guess so. >>>>>>>>> FileCheck has powerful extensions than just matching some strings so that >>>>>>>>> it can support complex situations. >>>>>>>>> >>>>>>>>> 2012/8/22 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>> yeah,i see. >>>>>>>>>> i thought FileCheck check if the same string in the two file,is it? >>>>>>>>>> the file t.s maybe do not have the same string with %s,so FileCheck >>>>>>>>>> perhaps give a fail. >>>>>>>>>> i am not sure about it. >>>>>>>>>> >>>>>>>>>> On Wed, Aug 22, 2012 at 3:32 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>>>> 2012/8/22 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>>>> the example is more like what i need,it is so nice. >>>>>>>>>>>> but,i am indefinite if "RUN: FileCheck < %t.s %s" can pass,i >>>>>>>>>>>> understand that t.s was translate from t.ll,%s means read the local >>>>>>>>>>>> source,are they the same? >>>>>>>>>>> >>>>>>>>>>> %t indicates a temporary file for output. ".s" is just a suffix I used >>>>>>>>>>> conventionly. >>>>>>>>>>> You can replace it with any string you like. >>>>>>>>>>> >>>>>>>>>>> See entry "tmp" in http://llvm.org/docs/TestingGuide.html#rtvars >>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> On Wed, Aug 22, 2012 at 1:55 PM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>>>>>> I did an experiment just now with a test case like: >>>>>>>>>>>>> // RUN: clang %s -S -emit-llvm -o %t.ll >>>>>>>>>>>>> // RUN: llc %t.ll -o %t.s >>>>>>>>>>>>> // RUN: FileCheck < %t.s %s >>>>>>>>>>>>> >>>>>>>>>>>>> ... >>>>>>>>>>>>> >>>>>>>>>>>>> // CHECK: ... >>>>>>>>>>>>> >>>>>>>>>>>>> And it worked. >>>>>>>>>>>>> >>>>>>>>>>>>> It seems clang does not take stdin as its input, so "clang < %s" fails. >>>>>>>>>>>>> Meanwhile, both "llc < %t.ll" and "llc %t.ll" work. >>>>>>>>>>>>> >>>>>>>>>>>>> 2012/8/22 Triple Yang <triple.yang at gmail.com>: >>>>>>>>>>>>>> 2012/8/21 Triple Yang <triple.yang at gmail.com>: >>>>>>>>>>>>>>> 2012/8/21 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>>>>>>>> Hi,Yang >>>>>>>>>>>>>>>> thanks for your entire answer,i will do it follow you. >>>>>>>>>>>>>>>> still another question puzzled me:i write a hello.c file like this: >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> //RUN: llc -march=c < %s | FileCheck %s >>>>>>>>>>>>>>>> #include"stdio.h" >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> int main() { >>>>>>>>>>>>>>>> printf ("Helloworld.\n"); >>>>>>>>>>>>>>>> return 0; >>>>>>>>>>>>>>>> } >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> in fact, i want to thanslate it to a hello.ll file like this: >>>>>>>>>>>>>>>> ;RUN: llc -march=c < %s | FileCheck %s >>>>>>>>>>>>>>>> ....... >>>>>>>>>>>>>>>> ;CHECK..... >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> but,when i thanslate the hello.c with clang,the sentence "//RUN: llc >>>>>>>>>>>>>>>> -march=c < %s | FileCheck %s" was treated as comment. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> it samed the method translating hello.c to hello.ll is wrong,isnot it? >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> To translate a .c file to a .ll file, you should wirte, for example, >>>>>>>>>>>>>>> clang -emit-llvm -S test.c -o test.ll >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> And the corresponding command for regression test might be: >>>>>>>>>>>>>>> ; RUN: clang < %s -emit-llvm -S | FileCheck %s >>>>>>>>>>>>>> >>>>>>>>>>>>>> We can write: >>>>>>>>>>>>>> // RUN: clang < %s -emit-llvm -S >>>>>>>>>>>>>> in a .c file to test clang. >>>>>>>>>>>>>> >>>>>>>>>>>>>> And if we use FileCheck, like: >>>>>>>>>>>>>> // RUN: clang < %s -emit-llvm -S | FileCheck %s >>>>>>>>>>>>>> make sure there is some "// CHECK:" in that file, or lit will report a failure. >>>>>>>>>>>>>> >>>>>>>>>>>>>> See utils/lit/lit/ExampleTests/Clang for more details. >>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Regards. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> (PS. When you reply to this email, make sure you send a copy to >>>>>>>>>>>>>>> llvmdev at cs.uiuc.edu) >>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> thanks very much! >>>>>>>>>>>>>>>> best wishes >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> changcheng >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> On Tue, Aug 21, 2012 at 10:46 AM, Triple Yang <triple.yang at gmail.com> wrote: >>>>>>>>>>>>>>>>> Hi, changcheng, >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> There are following steps to be taken to write a test case: >>>>>>>>>>>>>>>>> 1. create a directory in test, say "test/XXX" >>>>>>>>>>>>>>>>> 2. create a file named lit.local.cfg, which is a configuration file. >>>>>>>>>>>>>>>>> The straightforward way is to copy an existed one, >>>>>>>>>>>>>>>>> like "test/CodeGen/SPARC/lit.local.cfg". You might need make some >>>>>>>>>>>>>>>>> modification on it. >>>>>>>>>>>>>>>>> 3. create a file, say "example.ll" >>>>>>>>>>>>>>>>> (The name of file does not matter, but the suffix of the file name >>>>>>>>>>>>>>>>> DOES matter. See config.suffixes = [ ... ] in lit.local.cfg) >>>>>>>>>>>>>>>>> for more details. >>>>>>>>>>>>>>>>> example.ll includes normal content of LLVM IR, and the ";RUN ..." >>>>>>>>>>>>>>>>> directives at the beginning of the file. >>>>>>>>>>>>>>>>> 4. run all regression test cases with "make check", which includes >>>>>>>>>>>>>>>>> above test case newly added. >>>>>>>>>>>>>>>>> Or you might want to run just that case with "llvm-lit test/XXX" >>>>>>>>>>>>>>>>> or "llvm-lit test/XXX/example.ll" >>>>>>>>>>>>>>>>> llvm-lit resides in BUILD tree, distinguished from source tree and >>>>>>>>>>>>>>>>> install tree. You can find it under >>>>>>>>>>>>>>>>> your-build-tree/Release+Asserts/bin/ or >>>>>>>>>>>>>>>>> your-build-tree/Debug+Asserts/bin/ or likewise, which depends on your >>>>>>>>>>>>>>>>> build >>>>>>>>>>>>>>>>> configuration. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> By the way, in the following ";RUN ..." directive >>>>>>>>>>>>>>>>> ; RUN: llc < %s -march=x86 | FileCheck %s >>>>>>>>>>>>>>>>> %s indicates current file under test. I guess the first %s stands for >>>>>>>>>>>>>>>>> the input for llc, while the second and last %s specifies >>>>>>>>>>>>>>>>> what to check using "; CHECK ..." directives since you write them down >>>>>>>>>>>>>>>>> on exactly CURRENT file. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Hope it work for you. >>>>>>>>>>>>>>>>> Regards. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> 2012/8/20 Changcheng Wang <changcheng at multicorewareinc.com>: >>>>>>>>>>>>>>>>>> hi,all: >>>>>>>>>>>>>>>>>> i really want to how to write a regression test case,but i do not find >>>>>>>>>>>>>>>>>> out a entire document about it. >>>>>>>>>>>>>>>>>> By reading LLVM Testing Infrastructure Guide and FileCheck - Flexible >>>>>>>>>>>>>>>>>> pattern matching file verifier, i only have a idea,but it is not >>>>>>>>>>>>>>>>>> enough for me to write a test case.i need more detail about how to >>>>>>>>>>>>>>>>>> write a RUN:lines. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> thanks for you scan,wish your letter. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> best wishes, >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> changcheng >>>>>>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>>>>>> LLVM Developers mailing list >>>>>>>>>>>>>>>>>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>>>>>>>>>>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> -- >>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> -- >>>>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> 杨勇勇 (Yang Yongyong) >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> 杨勇勇 (Yang Yongyong) >>>>> >>>>> >>>>> >>>>> -- >>>>> 杨勇勇 (Yang Yongyong)-- 杨勇勇 (Yang Yongyong)
Hi,all:
i have a question about llvm162227,recently i have a work about
cBackend,i found a the Module data is different from llvm2.9,a pass
named CBackendNameAllUsedStructsAndMergeFunctions() was removed.for
this the module data can not be translated correctly.
when i try to rewrite this pass,i found much interfaces of module have
been changed.
i write a test which contian a struct like this
struct student{
long num;
int num2;
int num3;
int num4;
};
after analyze the struct should be modify like this:
struct student{
long num;
int num2;
int num3;
int num4;
char add[4];
};
but now, i do not know which function can do this work in Module in llvm162227.
thanks,
Regards,
changcheng
On Wed, Aug 29, 2012 at 10:29 PM, Triple Yang <triple.yang at gmail.com>
wrote:> aha, that's quite straightforward.
>
> 2012/8/29 Changcheng Wang <changcheng at multicorewareinc.com>:
>> hi,yang:
>> i had delete the temporary files,sorry to trouble you.
>> it is so easy: // RUN: rm ....
>>
>> Regards
>> changcheng
>>
>> On Wed, Aug 29, 2012 at 2:41 PM, Changcheng Wang
>> <changcheng at multicorewareinc.com> wrote:
>>> hi,yang:
>>> how can i remove the temporary files?
>>> if i can remove them,all is ok!
>>>
>>> yours:
>>>
>>> changcheng
>>>
>>> On Wed, Aug 29, 2012 at 2:14 PM, Changcheng Wang
>>> <changcheng at multicorewareinc.com> wrote:
>>>> hi,yang:
>>>> sorry to trouble you another time,i used your example and it
run
>>>> well,but a problem came,it create severel temporary files i
chaged the
>>>> RUN: line but failed.
>>>> i changed it like this,can you give me some suggestions?
>>>>
>>>> // RUN: clang %s -S -emit-llvm | llc -march=c | clang -S
-emit-llvm |
>>>> lli | FileCheck %s
>>>>
>>>> thanks,
>>>> best wishes,
>>>>
>>>> changcheng
>>>>
>>>>
>>>> On Wed, Aug 29, 2012 at 8:39 AM, Changcheng Wang
>>>> <changcheng at multicorewareinc.com> wrote:
>>>>> hi,yang:
>>>>> i had realized the test.
>>>>> thanks for your help!
>>>>>
>>>>> yours,
>>>>> changcheng
>>>>>
>>>>> On Tue, Aug 28, 2012 at 8:58 PM, Triple Yang
<triple.yang at gmail.com> wrote:
>>>>>> That example is a standalone one which means you can
run it without
>>>>>> extra modification.
>>>>>> Feel free to try it.
>>>>>>
>>>>>> 2012/8/28 Changcheng Wang <changcheng at
multicorewareinc.com>:
>>>>>>> hi,yang:
>>>>>>> sorry to trouble you,i have a little question about
the example you give me.
>>>>>>> the example is a C file,can i run it without
translate into a ll file?
>>>>>>> the command line maybe like this: llvm-lit
./example.c
>>>>>>>
>>>>>>
>>>>>> Yes, you can. There is no need for extra translation.
>>>>>>
>>>>>>> as i want to write a test to check cBackend,i want
the test :
>>>>>>> 1.translate a example.c file to example.ll file
with clang.
>>>>>>> 2.translate the example.ll file to transExample.c
file with cBackend.
>>>>>>> 3.compile the transExample.c file to
transExample.bc with clang.
>>>>>>> 4.run the transExample.bc and check the output.
>>>>>>>
>>>>>>> can i write the RUN: line into example.c file just
like you did?
>>>>>>
>>>>>> I guess so. Just pay attention to file IO and stdio. If
you are not
>>>>>> sure about something, redirect IO flows to temporary
files.
>>>>>>
>>>>>> Anyway, feel free to try.
>>>>>>
>>>>>>>
>>>>>>> thanks,
>>>>>>> your,
>>>>>>> changcheng
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Aug 28, 2012 at 11:40 AM, Triple Yang
<triple.yang at gmail.com> wrote:
>>>>>>>> Wang,
>>>>>>>> Attachment is a simple example, you may put it
in test/CodeGen, and run with
>>>>>>>> llvm-lit C90
>>>>>>>>
>>>>>>>> It worked ok in my llvm 3.2 devel. Let know if
you come into any trouble.
>>>>>>>>
>>>>>>>> Regards.
>>>>>>>>
>>>>>>>> 2012/8/27 Changcheng Wang <changcheng at
multicorewareinc.com>:
>>>>>>>>> hi,Yang:
>>>>>>>>> if you can give me a examle,which check out
a string(such as "abcd")
>>>>>>>>> from a file(such as aaa.c) with fileCheck?
>>>>>>>>> i tried to write it but failed.
>>>>>>>>>
>>>>>>>>> thanks for your help!
>>>>>>>>>
>>>>>>>>> best wished!
>>>>>>>>>
>>>>>>>>> changcheng
>>>>>>>>>
>>>>>>>>> On Wed, Aug 22, 2012 at 9:30 PM, Triple
Yang <triple.yang at gmail.com> wrote:
>>>>>>>>>> I guess so.
>>>>>>>>>> FileCheck has powerful extensions than
just matching some strings so that
>>>>>>>>>> it can support complex situations.
>>>>>>>>>>
>>>>>>>>>> 2012/8/22 Changcheng Wang
<changcheng at multicorewareinc.com>:
>>>>>>>>>>> yeah,i see.
>>>>>>>>>>> i thought FileCheck check if the
same string in the two file,is it?
>>>>>>>>>>> the file t.s maybe do not have the
same string with %s,so FileCheck
>>>>>>>>>>> perhaps give a fail.
>>>>>>>>>>> i am not sure about it.
>>>>>>>>>>>
>>>>>>>>>>> On Wed, Aug 22, 2012 at 3:32 PM,
Triple Yang <triple.yang at gmail.com> wrote:
>>>>>>>>>>>> 2012/8/22 Changcheng Wang
<changcheng at multicorewareinc.com>:
>>>>>>>>>>>>> the example is more like
what i need,it is so nice.
>>>>>>>>>>>>> but,i am indefinite if
"RUN: FileCheck < %t.s %s" can pass,i
>>>>>>>>>>>>> understand that t.s was
translate from t.ll,%s means read the local
>>>>>>>>>>>>> source,are they the same?
>>>>>>>>>>>>
>>>>>>>>>>>> %t indicates a temporary file
for output. ".s" is just a suffix I used
>>>>>>>>>>>> conventionly.
>>>>>>>>>>>> You can replace it with any
string you like.
>>>>>>>>>>>>
>>>>>>>>>>>> See entry "tmp" in
http://llvm.org/docs/TestingGuide.html#rtvars
>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Wed, Aug 22, 2012 at
1:55 PM, Triple Yang <triple.yang at gmail.com> wrote:
>>>>>>>>>>>>>> I did an experiment
just now with a test case like:
>>>>>>>>>>>>>> // RUN: clang %s -S
-emit-llvm -o %t.ll
>>>>>>>>>>>>>> // RUN: llc %t.ll -o
%t.s
>>>>>>>>>>>>>> // RUN: FileCheck <
%t.s %s
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ...
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> // CHECK: ...
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> And it worked.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> It seems clang does not
take stdin as its input, so "clang < %s" fails.
>>>>>>>>>>>>>> Meanwhile, both
"llc < %t.ll" and "llc %t.ll" work.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> 2012/8/22 Triple Yang
<triple.yang at gmail.com>:
>>>>>>>>>>>>>>> 2012/8/21 Triple
Yang <triple.yang at gmail.com>:
>>>>>>>>>>>>>>>> 2012/8/21
Changcheng Wang <changcheng at multicorewareinc.com>:
>>>>>>>>>>>>>>>>> Hi,Yang
>>>>>>>>>>>>>>>>> thanks for
your entire answer,i will do it follow you.
>>>>>>>>>>>>>>>>> still
another question puzzled me:i write a hello.c file like this:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> //RUN: llc
-march=c < %s | FileCheck %s
>>>>>>>>>>>>>>>>>
#include"stdio.h"
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> int main()
{
>>>>>>>>>>>>>>>>> printf
("Helloworld.\n");
>>>>>>>>>>>>>>>>> return 0;
>>>>>>>>>>>>>>>>> }
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> in fact, i
want to thanslate it to a hello.ll file like this:
>>>>>>>>>>>>>>>>> ;RUN: llc
-march=c < %s | FileCheck %s
>>>>>>>>>>>>>>>>> .......
>>>>>>>>>>>>>>>>> ;CHECK.....
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> but,when i
thanslate the hello.c with clang,the sentence "//RUN: llc
>>>>>>>>>>>>>>>>> -march=c
< %s | FileCheck %s" was treated as comment.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> it samed
the method translating hello.c to hello.ll is wrong,isnot it?
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> To translate a
.c file to a .ll file, you should wirte, for example,
>>>>>>>>>>>>>>>> clang
-emit-llvm -S test.c -o test.ll
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> And the
corresponding command for regression test might be:
>>>>>>>>>>>>>>>> ; RUN:
clang < %s -emit-llvm -S | FileCheck %s
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> We can write:
>>>>>>>>>>>>>>> // RUN: clang <
%s -emit-llvm -S
>>>>>>>>>>>>>>> in a .c file to
test clang.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> And if we use
FileCheck, like:
>>>>>>>>>>>>>>> // RUN: clang <
%s -emit-llvm -S | FileCheck %s
>>>>>>>>>>>>>>> make sure there is
some "// CHECK:" in that file, or lit will report a failure.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> See
utils/lit/lit/ExampleTests/Clang for more details.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Regards.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> (PS. When you
reply to this email, make sure you send a copy to
>>>>>>>>>>>>>>>> llvmdev at
cs.uiuc.edu)
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> thanks very
much!
>>>>>>>>>>>>>>>>> best wishes
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> changcheng
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On Tue, Aug
21, 2012 at 10:46 AM, Triple Yang <triple.yang at gmail.com> wrote:
>>>>>>>>>>>>>>>>>> Hi,
changcheng,
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> There
are following steps to be taken to write a test case:
>>>>>>>>>>>>>>>>>> 1.
create a directory in test, say "test/XXX"
>>>>>>>>>>>>>>>>>> 2.
create a file named lit.local.cfg, which is a configuration file.
>>>>>>>>>>>>>>>>>> The
straightforward way is to copy an existed one,
>>>>>>>>>>>>>>>>>>
like "test/CodeGen/SPARC/lit.local.cfg". You might need make some
>>>>>>>>>>>>>>>>>>
modification on it.
>>>>>>>>>>>>>>>>>> 3.
create a file, say "example.ll"
>>>>>>>>>>>>>>>>>>
(The name of file does not matter, but the suffix of the file name
>>>>>>>>>>>>>>>>>> DOES
matter. See config.suffixes = [ ... ] in lit.local.cfg)
>>>>>>>>>>>>>>>>>> for
more details.
>>>>>>>>>>>>>>>>>>
example.ll includes normal content of LLVM IR, and the ";RUN ..."
>>>>>>>>>>>>>>>>>>
directives at the beginning of the file.
>>>>>>>>>>>>>>>>>> 4. run
all regression test cases with "make check", which includes
>>>>>>>>>>>>>>>>>> above
test case newly added.
>>>>>>>>>>>>>>>>>> Or
you might want to run just that case with "llvm-lit test/XXX"
>>>>>>>>>>>>>>>>>> or
"llvm-lit test/XXX/example.ll"
>>>>>>>>>>>>>>>>>>
llvm-lit resides in BUILD tree, distinguished from source tree and
>>>>>>>>>>>>>>>>>> install
tree. You can find it under
>>>>>>>>>>>>>>>>>>
your-build-tree/Release+Asserts/bin/ or
>>>>>>>>>>>>>>>>>>
your-build-tree/Debug+Asserts/bin/ or likewise, which depends on your
>>>>>>>>>>>>>>>>>> build
>>>>>>>>>>>>>>>>>>
configuration.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> By the
way, in the following ";RUN ..." directive
>>>>>>>>>>>>>>>>>> ; RUN:
llc < %s -march=x86 | FileCheck %s
>>>>>>>>>>>>>>>>>> %s
indicates current file under test. I guess the first %s stands for
>>>>>>>>>>>>>>>>>> the
input for llc, while the second and last %s specifies
>>>>>>>>>>>>>>>>>> what to
check using "; CHECK ..." directives since you write them down
>>>>>>>>>>>>>>>>>> on
exactly CURRENT file.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Hope it
work for you.
>>>>>>>>>>>>>>>>>>
Regards.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
2012/8/20 Changcheng Wang <changcheng at multicorewareinc.com>:
>>>>>>>>>>>>>>>>>>>
hi,all:
>>>>>>>>>>>>>>>>>>> i
really want to how to write a regression test case,but i do not find
>>>>>>>>>>>>>>>>>>> out
a entire document about it.
>>>>>>>>>>>>>>>>>>> By
reading LLVM Testing Infrastructure Guide and FileCheck - Flexible
>>>>>>>>>>>>>>>>>>>
pattern matching file verifier, i only have a idea,but it is not
>>>>>>>>>>>>>>>>>>>
enough for me to write a test case.i need more detail about how to
>>>>>>>>>>>>>>>>>>>
write a RUN:lines.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
thanks for you scan,wish your letter.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
best wishes,
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
changcheng
>>>>>>>>>>>>>>>>>>>
_______________________________________________
>>>>>>>>>>>>>>>>>>>
LLVM Developers mailing list
>>>>>>>>>>>>>>>>>>>
LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
>>>>>>>>>>>>>>>>>>>
http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> 杨勇勇
(Yang Yongyong)
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> 杨勇勇 (Yang
Yongyong)
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong)
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> 杨勇勇 (Yang Yongyong)
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> 杨勇勇 (Yang Yongyong)
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> 杨勇勇 (Yang Yongyong)
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> 杨勇勇 (Yang Yongyong)
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> 杨勇勇 (Yang Yongyong)
>
>
>
> --
> 杨勇勇 (Yang Yongyong)