[Bug target/43869] ms_abi - sysv_abi passing float arguments incorrectly
--- Comment #4 from m dot b dot lankhorst at gmail dot com 2010-04-25 14:41 --- Created an attachment (id=20483) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20483action=view) Patch that fixes the testcase It appears that SSE_REGPARM_MAX will change based on ix86_cfun_abi(), so using SSE_REGPARM_MAX will cause sse regparm max to be 4, if calling a sysv function from a ms_abi function. The attached patch will clean up some of the issues. setup_incoming_varargs_64 will also assume the sysv abi now, since setup_incoming_varargs_ms_64 is a separate function -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43869
[Bug c/43869] New: ms_abi - sysv_abi passing float arguments incorrectly
Float arguments are passed incorrectly from a ms_abi function to a sysv function, as can be witnessed by a simple testcase, which fails on all optimizations. I don't think this is a regression, as wine always failed on that testcase. -- Summary: ms_abi - sysv_abi passing float arguments incorrectly Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: m dot b dot lankhorst at gmail dot com GCC build triplet: x86_64-linux-gnu GCC host triplet: x86_64-linux-gnu GCC target triplet: x86_64-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43869
[Bug c/43869] ms_abi - sysv_abi passing float arguments incorrectly
--- Comment #1 from m dot b dot lankhorst at gmail dot com 2010-04-23 18:38 --- Created an attachment (id=20474) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20474action=view) testcase testcase that fails -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43869
[Bug c/42079] New: missing unitialized warning on simple testcase
This code should warn that foo is used uninitialized, but it doesn't.. gcc 4.3
and gcc 4.4 both fail to report a warning
extern void do_something(void **foo);
extern int cond(void);
int main(int argc, char *argv[])
{
void *foo;
if (cond())
do_something(foo);
*argv = foo;
return 0;
}
--
Summary: missing unitialized warning on simple testcase
Product: gcc
Version: 4.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: m dot b dot lankhorst at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42079
[Bug c/38366] gcc doesn't call functions that are struct arguments correctly
--- Comment #1 from m dot b dot lankhorst at gmail dot com 2008-12-02 09:08 --- Created an attachment (id=16806) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16806action=view) testcase Testcase that should return '1 2 3 4 5 6 7', but on my computer returns '1 2 3 4 5 6 1' (last number being undefined) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38366
[Bug c/38366] New: gcc doesn't call functions that are struct arguments correctly
If a function pointer is part of a struct, and it is called from a function marked with ms_abi, the 7th argument will be placed wrongly on the stack. It is placed at 20(%rsp) instead of at (%rsp), which means that programs like wine will fail. Testcase attached -- Summary: gcc doesn't call functions that are struct arguments correctly Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: m dot b dot lankhorst at gmail dot com GCC build triplet: x86_64-pc-linux-gnu GCC host triplet: x86_64-pc-linux-gnu GCC target triplet: x86_64-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38366
[Bug target/38227] gcc fails to correctly pass arguments with ms_abi function pointers
--- Comment #4 from m dot b dot lankhorst at gmail dot com 2008-11-23 21:11 --- Patch seems to fix the testcase -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38227
[Bug c/38227] New: gcc fails to correctly pass arguments with ms_abi function pointers
When calling function pointers that have been marked with __attribute__((ms_abi)) the arguments will not be passed correctly. A simple testcase is enough to expose the wrong behavior. -- Summary: gcc fails to correctly pass arguments with ms_abi function pointers Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: m dot b dot lankhorst at gmail dot com GCC build triplet: x86_64-linux-gnu GCC host triplet: x86_64-linux-gnu GCC target triplet: x86_64-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38227
[Bug c/38227] gcc fails to correctly pass arguments with ms_abi function pointers
--- Comment #1 from m dot b dot lankhorst at gmail dot com 2008-11-22 13:33 --- Created an attachment (id=16748) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16748action=view) Minimal testcase Compile with amd64 compiler without optimizations and run it. Expected: Number is: 1234567890abcdef Actual result: Number is: 0 (May vary) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38227
[Bug c++/28498] New: fstack-protector causes crash in combination with -Os
When compiling c++ code, you can get an error similar to this one: /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1/bits/stl_algo.h: In function '_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, _Tp) [with _RandomAccessIterator = __gnu_cxx::__normal_iteratorQRect*, std::vectorQRect, std::allocatorQRect , _Tp = QRect]': /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../include/c++/4.1.1/bits/stl_algo.h:2182: internal compiler error: Segmentation fault according to gcc -v, cc1plus was run with /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/cc1plus -quiet -v -D_GNU_SOURCE -D__PIC__ -DPIC windowgrabber.cc -fPIC -fstack-protector-all -quiet -dumpbase windowgrabber.cc -mtune=pentiumpro -auxbase windowgrabber -Os -version -fPIC -fstack-protector-all -o /tmp/cchIBKrS.s I'll attach source -- Summary: fstack-protector causes crash in combination with -Os Product: gcc Version: 4.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: m dot b dot lankhorst at gmail dot com GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28498
[Bug middle-end/28498] fstack-protector causes crash in combination with -Os
--- Comment #1 from m dot b dot lankhorst at gmail dot com 2006-07-26 17:42 --- Created an attachment (id=11949) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11949action=view) The source mentioned in description Source that won't compile -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28498
