"David Mathog" writes:
> What is:
>
> __builtin_ia32_vec_ext_v2df
>
> ???
It's a gcc builtin function, not to be confused with an SSE intrinsic
function.
> It wasn't in the original emmintrin.h, so presumably isn't actually
> part of SSE2, but it is present in the testsuite, and it is not vis
Matt Davis writes:
> I have been working on my PhD thesis and I want to focus on the Go
> language. I know Ian Taylor has done tons of work regarding the Go
> frontend for gcc. Likewise, I know gcc implements SSA and even
> link-time optimization. For my specific research I will need to do
> s
What is:
__builtin_ia32_vec_ext_v2df
??? It wasn't in the original emmintrin.h, so presumably isn't actually
part of SSE2, but it is present in the testsuite, and it is not visible
to the compiler when -mno-sse2 is set. See for instance the files
sse2-vec-#.c. (Randomly selected) Example:
ss
Snapshot gcc-4.4-20101123 is now available on
ftp://gcc.gnu.org/pub/gcc/snapshots/4.4-20101123/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 4.4 SVN branch
with the following options: svn://gcc.gnu.org/svn/gcc/branches
The problem is specific for 64 bit environments, made these:
gcc -Wall -msse -mno-sse2 -I. -lm -DSOFT_SSE2 -DEMMSOFTDBG \
-O0 -m32 -S -o gccprob_wno32.s gccprob.c
gcc -Wall -msse -mno-sse2 -I. -lm -DSOFT_SSE2 -DEMMSOFTDBG \
-O0 -m32 -o gccprob_wno32 gccprob.c
gcc -Wall -msse -msse2 -I.
Hello,
I have been working on my PhD thesis and I want to focus on the Go
language. I know Ian Taylor has done tons of work regarding the Go
frontend for gcc. Likewise, I know gcc implements SSA and even
link-time optimization. For my specific research I will need to do
some intermodule analysis
I renamed the test case gccprob.c and made two binaries and two
assembler files:
gcc -Wall -msse -mno-sse2 -I. -lm -DSOFT_SSE2 -DEMMSOFTDBG \
-O0 -o gccprob_wno gccprob.c
gcc -Wall -msse -mno-sse2 -I. -lm -DSOFT_SSE2 -DEMMSOFTDBG \
-O0 -S -o gccprob_wno.s gccprob.c
gcc -Wall -msse -msse
> Things I tried to force a 16 byte stack alignment that didn't work:
>
> 1 -mstackrealign
> 2 -mpreferred-stack-boundary=4
> 3 -mincoming-stack-boundary=4
> 4 2 and 3
> 5 1 and 2 and 3
And this is why they didn't work. Change the test function to
static __m128d __attribute__((noinline,al
I have found several ways to "fix" the latest issue, but they all boil
down to never passing an __m128d value on the call stack. For instance
change
static __m128d
__attribute__((noinline, unused))
test (__m128d s1, __m128d s2)
to
static __m128d test (__m128d s1, __m128d s2)
and the program wo
Quoting "Joseph S. Myers" :
If something relates to an interface to a lower-level part of the compiler
then BITS_PER_UNIT is probably right - but if somethis relates to whether
a type is a variant of char, or to alignment of a non-bit-field object
(you can't have smaller than char alignment), or
I think quite a lot of front end uses of BITS_PER_UNIT should really be
TYPE_PRECISION (char_type_node) (which in general I'd consider preferred
to CHAR_TYPE_SIZE in the front ends). Though it's pretty poorly defined
what datastructures should look like if target "char" in the front ends is
wi
The last mysterious error message went away when the same code was
compiled on a machine with a more recent gcc (4.4.1). Shortly after
I hit the next roadblock.
Here is foo.c (a modified version of sse2-cmpsd-1.c from the version
4.5.1 testsuite):
>8>8<8>8>8<8>8>8<8>8>8<8>8>8<8>8>8<8>8>8<8>8>8<8
If we changed BITS_PER_UNIT into an ordinary piece-of-data 'hook', this
would not only cost a data load from the target vector, but would also
inhibit optimizations that replace division / modulo / multiply with shift
or mask operations.
So maybe we should look into having a few functional hooks t
Zdenek,
I'm investigating an ICE in loop-iv.c:get_biv_step(). I hope you can shed some
light on what the correct fix would be.
The ICE happens when processing:
==
(insn 111 (set (reg:SI 304)
(plus (subreg:SI (reg:DI 251) 4)
(const_int 1
(insn 177 (set (s
> Following the recent comments by Eric, the patch now sketches the
> following setup:
>
> If multi-lib is wanted:
> configure --with-cpu=leon ... : creates multilib-dir soft|v8
> combinations using [-msoft-float|-mcpu=sparcleonv8] (MULTILIB_OPTIONS =
> msoft-float mcpu=sparcleonv8)
>
> If
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