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* [Bug go/61877] New: [4.10 Regression]: reflect: cannot use []string as type string in Call
@ 2014-07-22 11:14 lists at kambanaria dot org
  2014-07-22 11:16 ` [Bug go/61877] " lists at kambanaria dot org
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: lists at kambanaria dot org @ 2014-07-22 11:14 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61877

            Bug ID: 61877
           Summary: [4.10 Regression]: reflect: cannot use []string as
                    type string in Call
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: lists at kambanaria dot org
                CC: cmang at google dot com

Created attachment 33171
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33171&action=edit
test case that can be executed with "go test -compiler gccgo -test.v 
reflect_test"

There is a regression in the runtime behavior of the reflection module.

Attached is a very simple ( < 30 lines) test case (that can be execured via go
test command). I hope this can be included in the normal test suite

Expected behavior:
     go run -compiler gccgo src/ref_main.go go test -compiler gccgo -test.v 
reflect_test
should result in:
     === RUN TestFindingVarargMethod
     --- PASS: TestFindingVarargMethod (0.00 seconds)
     PASS
     ok
Actual behavior:

     === RUN TestFindingVarargMethod
     --- FAIL: TestFindingVarargMethod (0.00 seconds)
     panic: reflect: cannot use []string as type string in Call [recovered]
         panic: reflect: cannot use []string as type string in Call

     goroutine 20 [running]:
     testing.$nested5
         ../.././libgo/go/testing/testing.go:406
     reflect.call.N13_reflect.Value
         ../.././libgo/go/reflect/value.go:494
     reflect.Call.N13_reflect.Value
         ../.././libgo/go/reflect/value.go:412
     reflect.call.pN20_reflect.makeFuncImpl
         ../.././libgo/go/reflect/makefunc.go:198
     reflect.MakeFuncStubGo
         ../.././libgo/go/reflect/makefuncgo_amd64.go:322
     reflect_test_test.TestFindingVarargMethod
         /home/ashopov/WORK/GO/src/reflect_test/finder_test.go:19
     testing.tRunner
         ../.././libgo/go/testing/testing.go:422
     created by testing.RunTests
         ../.././libgo/go/testing/testing.go:504

     goroutine 16 [chan receive]:
     testing.RunTests
         ../.././libgo/go/testing/testing.go:505
     testing.Main
         ../.././libgo/go/testing/testing.go:435
     main.main
         /tmp/go-build886615920/reflect_test/_test/_testmain.go:47
     created by main
         ../.././libgo/runtime/go-main.c:42

     goroutine 18 [finalizer wait]:
     created by runtime_createfing
         ../.././libgo/runtime/mgc0.c:2596
     exit status 2
     FAIL    reflect_test    0.058s





This test case is WORKING fine with:
1. golang-pkg-bin-linux-amd64-1.2.2-7 distributed with Fedora 20
which corresponds to 
2. gcc 4.9:
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/ashopov/WORK/GCC/libexec/gcc/x86_64-linux-gnu/4.9.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../configure --prefix=/home/ashopov/WORK/GCC
--build=x86_64-linux-gnu --disable-browser-plugin --disable-libgcj
--disable-libmudflap --disable-vtable-verify --disable-libunwind-exceptions
--enable-checking=release --disable-bootstrap --enable-__cxa_atexit
--enable-gnu-unique-object --enable-languages=c,c++,go,lto
--enable-linker-build-id --enable-multilib --enable-plugin --enable-shared
--enable-threads=posix --with-linker-hash-style=gnu --with-system-zlib
--with-tune=generic --enable-multiarch
Thread model: posix
gcc version 4.9.1 20140709 (prerelease) (GCC) 



This test case is FAILING with:
1. gcc 4.10
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/ashopov/WORK/GCC-TRUNK/libexec/gcc/x86_64-linux-gnu/4.10.0/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ./configure --prefix=/home/ashopov/WORK/GCC-TRUNK
--build=x86_64-linux-gnu --disable-browser-plugin --disable-libgcj
--disable-libmudflap --disable-vtable-verify --disable-libunwind-exceptions
--enable-checking=release --disable-bootstrap --enable-__cxa_atexit
--enable-gnu-unique-object --enable-languages=c,c++,go,lto
--enable-linker-build-id --enable-multilib --enable-plugin --enable-shared
--enable-threads=posix --with-linker-hash-style=gnu --with-system-zlib
--with-tune=generic --enable-multiarch
Thread model: posix
gcc version 4.10.0 20140721 (experimental) (GCC) 


Machine used for tests:
uname -a
Linux ashopov-dev 3.15.6-200.fc20.x86_64 #1 SMP Fri Jul 18 02:36:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux


^ permalink raw reply	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2014-10-03 15:52 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-07-22 11:14 [Bug go/61877] New: [4.10 Regression]: reflect: cannot use []string as type string in Call lists at kambanaria dot org
2014-07-22 11:16 ` [Bug go/61877] " lists at kambanaria dot org
2014-09-25 16:36 ` [Bug go/61877] [5 " rth at gcc dot gnu.org
2014-10-02  2:50 ` michael.hudson at linaro dot org
2014-10-02  3:50 ` michael.hudson at linaro dot org
2014-10-02  4:17 ` ian at airs dot com
2014-10-02  9:50 ` michael.hudson at linaro dot org
2014-10-02 14:53 ` lists at kambanaria dot org
2014-10-02 15:31 ` ian at airs dot com
2014-10-02 23:57 ` ian at airs dot com
2014-10-03  2:51 ` michael.hudson at linaro dot org
2014-10-03 15:52 ` ian at gcc dot gnu.org
2014-10-03 15:52 ` ian at airs dot com

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