[Bug rtl-optimization/21239] [4.0/4.1 Regression] Illegal elimination of SSE2 load/store using xmm intrinsics

2005-05-03 Thread jakub at gcc dot gnu dot org 

--- Additional Comments From jakub at gcc dot gnu dot org  2005-05-03 14:42 
---
Yeah, a bug in combine_simplify_rtx.  I have a patch that fixes this, but
while working on a testcase I encountered other bug as well, so am looking
into that too.

-- 
   What|Removed |Added

 AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
   |dot org |
 Status|NEW |ASSIGNED
   Last reconfirmed|2005-04-27 00:00:41 |2005-05-03 14:42:12
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21239

[Bug rtl-optimization/21239] [4.0/4.1 Regression] Illegal elimination of SSE2 load/store using xmm intrinsics

2005-05-03 Thread cvs-commit at gcc dot gnu dot org 

--- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-03 
22:16 ---
Subject: Bug 21239

CVSROOT:/cvs/gcc
Module name:gcc
Changes by: [EMAIL PROTECTED]   2005-05-03 22:16:02

Modified files:
gcc: ChangeLog combine.c 
gcc/testsuite  : ChangeLog 
gcc/config/i386: i386.c 
Added files:
gcc/testsuite/gcc.dg: i386-sse-11.c 

Log message:
* config/i386/i386.c (ix86_expand_vector_set): Fix setting 3rd and 4th
item in V4SF mode.

PR rtl-optimization/21239
* combine.c (combine_simplify_rtx) case VEC_SELECT: Fix a typo.

* gcc.dg/i386-sse-11.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gccr1=2.8587r2=2.8588
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gccr1=1.488r2=1.489
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gccr1=1.5436r2=1.5437
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gccr1=1.817r2=1.818
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-sse-11.c.diff?cvsroot=gccr1=NONEr2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21239

[Bug rtl-optimization/21239] [4.0/4.1 Regression] Illegal elimination of SSE2 load/store using xmm intrinsics

2005-04-26 Thread pinskia at gcc dot gnu dot org 

--- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-27 
00:00 ---
Confirmed.
Combine is combing the following RTL:
(insn 30 27 31 2 (set (reg:DF 70)
(mem:DF (reg/v/f:SI 64 [ s ]) [0 S8 A64])) -1 (nil)
(nil))

(insn 31 30 32 2 (set (reg:V2DF 69)
(vec_concat:V2DF (reg:DF 70)
(const_double:DF 0 [0x0] 0.0 [0x0.0p+0]))) -1 
(insn_list:REG_DEP_TRUE 30 (nil))
(expr_list:REG_DEAD (reg:DF 70)
(nil)))

(insn 32 31 34 2 (set (reg:DF 71)
(vec_select:DF (reg:V2DF 69)
(parallel [
(const_int 0 [0x0])
]))) -1 (insn_list:REG_DEP_TRUE 31 (nil))
(expr_list:REG_DEAD (reg:V2DF 69)
(nil)))

(insn 34 32 36 2 (set (mem:DF (reg/v/f:SI 63 [ d ]) [0 S8 A64])
(reg:DF 71)) -1 (insn_list:REG_DEP_TRUE 32 (nil))
(expr_list:REG_DEAD (reg:DF 71)
(nil)))
into:
(insn 34 32 36 2 (set (mem:DF (reg/v/f:SI 63 [ d ]) [0 S8 A64])
(const_double:DF 0 [0x0] 0.0 [0x0.0p+0])) 65 {*movdf_nointeger} (nil)
(nil))

Which is just wrong.

-- 
   What|Removed |Added

 Status|UNCONFIRMED |NEW
  Component|c   |rtl-optimization
 Ever Confirmed||1
   Keywords||ssemmx, wrong-code
   Last reconfirmed|-00-00 00:00:00 |2005-04-27 00:00:41
   date||
Summary|Illegal elimination of SSE2 |[4.0/4.1 Regression] Illegal
   |load/store using xmm|elimination of SSE2
   |intrinsics  |load/store using xmm
   ||intrinsics
   Target Milestone|--- |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21239