[Bug target/101804] float_vector_all_ones_operand should be used more

2022-12-24 Thread pinskia at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101804

Andrew Pinski  changed:

   What|Removed |Added

   Target Milestone|--- |12.0

[Bug target/101804] float_vector_all_ones_operand should be used more

2021-10-06 Thread hjl.tools at gmail dot com via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101804

H.J. Lu  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|UNCONFIRMED |RESOLVED

--- Comment #3 from H.J. Lu  ---
Fixed for GCC 12.

[Bug target/101804] float_vector_all_ones_operand should be used more

2021-08-09 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101804

--- Comment #2 from CVS Commits  ---
The master branch has been updated by H.J. Lu :

https://gcc.gnu.org/g:3d7ccbc1efbd475031a9a4a6110c531f71fbf631

commit r12-2829-g3d7ccbc1efbd475031a9a4a6110c531f71fbf631
Author: H.J. Lu 
Date:   Fri Aug 6 12:32:01 2021 -0700

x86: Optimize load of const FP all bits set vectors

Check float_vector_all_ones_operand for vector floating-point modes to
optimize load of const floating-point all bits set vectors.

gcc/

PR target/101804
* config/i386/constraints.md (BC): Document for integer SSE
constant all bits set operand.
(BF): New constraint for const floating-point all bits set
vectors.
* config/i386/i386.c (standard_sse_constant_p): Likewise.
(standard_sse_constant_opcode): Likewise.
* config/i386/sse.md (sseconstm1): New mode attribute.
(mov_internal): Replace BC with .

gcc/testsuite/

PR target/101804
* gcc.target/i386/avx2-gather-2.c: Pass -march=skylake instead
of "-mavx2 -mtune=skylake".  Scan vpcmpeqd.

[Bug target/101804] float_vector_all_ones_operand should be used more

2021-08-06 Thread hjl.tools at gmail dot com via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101804

H.J. Lu  changed:

   What|Removed |Added

  Attachment #51270|0   |1
is obsolete||

--- Comment #1 from H.J. Lu  ---
Created attachment 51271
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51271=edit
A patch