[Bug middle-end/44130] [vect256] SLP failed to update stack alignment

[Bug middle-end/44130] [vect256] SLP failed to update stack alignment

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44130

--- Comment #2 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2010-10-14 02:28:01 UTC ---
Author: hjl
Date: Thu Oct 14 02:27:59 2010
New Revision: 165447

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165447
Log:
Add a testcase for PR middle-end/44130.

2010-10-13  H.J. Lu  <hongjiu.lu@intel.com>

    PR middle-end/44130
    * gcc.target/i386/pr44130.c: New.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr44130.c
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug middle-end/44130] [vect256] SLP failed to update stack alignment

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44130

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
            Version|unknown                     |4.6.0
         Resolution|                            |FIXED
   Target Milestone|---                         |4.6.0

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-14 02:29:20 UTC ---
Fixed.

[Bug middle-end/44130] New: [vect256] SLP failed to update stack alignment

[hjl dot tools at gmail dot com]

On vect256 branch, I got

[hjl@gnu-6 prxxx]$ cat x.c
extern void abort (void);

static float Yf[] = { 2.0, -2.0, -2.0, -2.0, -2.0, 2.0, -0.0, __builtin_inff ()
};
static const float Zf[] = { 1.0, -1.0, -1.0, -0.0, -0.0, 0.0, -__builtin_inff
(), __builtin_nanf ("") };

void testf (void)
{
  float r[8];
  int i; r[0] = __builtin_copysignf (1.0, Yf[0]);
  r[1] = __builtin_copysignf (1.0, Yf[1]);
  r[2] = __builtin_copysignf (-1.0, Yf[2]);
  r[3] = __builtin_copysignf (0.0, Yf[3]);
  r[4] = __builtin_copysignf (-0.0, Yf[4]);
  r[5] = __builtin_copysignf (-0.0, Yf[5]);
  r[6] = __builtin_copysignf (__builtin_inff (), Yf[6]);
  r[7] = __builtin_copysignf (-__builtin_nanf (""), Yf[7]);
  for (i = 0; i < 8; ++i)
    if (__builtin_memcmp (r+i, Zf+i, sizeof(float)) != 0)
      abort ();
}
[hjl@gnu-6 prxxx]$ make
/export/build/gnu/gcc-avx256/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc-avx256/build-x86_64-linux/gcc/ -mavx -O2
-ftree-vectorize  -S x.c
[hjl@gnu-6 prxxx]$ cat x.s
        .file   "x.c"
        .text
        .p2align 4,,15
.globl testf
        .type   testf, @function
testf:
.LFB0:
        .cfi_startproc
        pushq   %rbp
        .cfi_def_cfa_offset 16
        xorl    %eax, %eax
        movl    $4, %edx
        movq    %rsp, %rbp
        .cfi_offset 6, -16
        .cfi_def_cfa_register 6
        subq    $32, %rsp
        vmovaps .LC0(%rip), %ymm0
        movq    %rsp, %r8
        vmovaps %ymm0, (%rsp)
        .p2align 4,,10
        .p2align 3
.L3:
        leaq    (%r8,%rax), %rsi
        leaq    Zf(%rax), %rdi
        movq    %rdx, %rcx
        repz cmpsb
        jne     .L6
        addq    $4, %rax
        cmpq    $32, %rax
        jne     .L3
        leave
        .cfi_remember_state
        .cfi_def_cfa 7, 8
        ret
.L6:
        .cfi_restore_state
        call    abort
        .cfi_endproc
.LFE0:
        .size   testf, .-testf


There is no stack alignment.


-- 
           Summary: [vect256] SLP failed to update stack alignment
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44130

[Bug middle-end/44130] [vect256] SLP failed to update stack alignment

[hjl at gcc dot gnu dot org]

------- Comment #1 from hjl at gcc dot gnu dot org  2010-05-14 05:10 -------
Subject: Bug 44130

Author: hjl
Date: Fri May 14 05:10:02 2010
New Revision: 159384

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159384
Log:
Increase base_name alignment if needed.

gcc/

2010-05-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/44130
        * tree-vect-data-refs.c (vect_create_data_ref_ptr): Increase
        base_name alignment if needed.

gcc/testsuite/

2010-05-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/44130
        * gcc.target/i386/pr44130.c: New.

Added:
    branches/vect256/gcc/testsuite/gcc.target/i386/pr44130.c
Modified:
    branches/vect256/gcc/ChangeLog.vect256
    branches/vect256/gcc/testsuite/ChangeLog.vect256
    branches/vect256/gcc/tree-vect-data-refs.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44130