[Bug tree-optimization/33854] New: [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[Bug tree-optimization/33854] New: [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[tbm at cyrius dot com]

I see the following ICE with current trunk.  I can also reproduce this
problem with trunk from 2007-06-04, but not with 2007-05-15.

(sid)29918:tbm@em64t: ~] /usr/lib/gcc-snapshot/bin/gcc -O1 -ftree-vectorize -c
gretl-describe.c
gretl-describe.c: In function 'uniform_correlation_matrix':
gretl-describe.c:11: internal compiler error: in vectorizable_conversion, at
tree-vect-transform.c:3374
Please submit a full bug report,
with preprocessed source if appropriate.


-- 
           Summary: [4.3 Regression] ICE in vectorizable_conversion, at
                    tree-vect-transform.c:3374
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[tbm at cyrius dot com]

------- Comment #1 from tbm at cyrius dot com  2007-10-22 06:35 -------
Created an attachment (id=14385)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14385&action=view)
preprocessed source


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[tbm at cyrius dot com]

------- Comment #2 from tbm at cyrius dot com  2007-10-22 06:36 -------
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */

extern void *malloc (long unsigned int __size);
typedef struct VMatrix_ VMatrix;
struct VMatrix_
{
  int dim;
  int t2;
};
void uniform_correlation_matrix (VMatrix * v)
{
  double *xbar = ((void *) 0);
  int m = v->dim;
  int i;
  xbar = malloc (m * sizeof *xbar);
  for (i = 0; i < m; i++)
    xbar[i] /= m;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[tbm at cyrius dot com]

------- Comment #3 from tbm at cyrius dot com  2007-10-22 06:37 -------
Breakpoint 1, fancy_abort (file=0xc4e238 "gcc/tree-vect-transform.c",
    line=3374, function=0xc4fa60 "vectorizable_conversion")
    at gcc/diagnostic.c:659
659     {
(gdb) where
#0  fancy_abort (file=0xc4e238 "gcc/tree-vect-transform.c", line=3374,
    function=0xc4fa60 "vectorizable_conversion") at gcc/diagnostic.c:659
#1  0x0000000000aac543 in vectorizable_conversion (stmt=0x2ac82a1f2ab0,
bsi=0x0, vec_stmt=0x0,
    slp_node=0x0) at gcc/tree-vect-transform.c:3374
#2  0x0000000000a93ab6 in vect_analyze_operations (loop_vinfo=0xf75e50)
    at gcc/tree-vect-analyze.c:484
#3  0x0000000000a9b74b in vect_analyze_loop (loop=<value optimized out>)
    at gcc/tree-vect-analyze.c:4341
#4  0x000000000080bcd0 in vectorize_loops () at gcc/tree-vectorizer.c:2501
#5  0x000000000063f247 in execute_one_pass (pass=0xee2d00) at gcc/passes.c:1117
#6  0x000000000063f40c in execute_pass_list (pass=0xee2d00)
    at gcc/passes.c:1170
#7  0x000000000063f41e in execute_pass_list (pass=0xee2b20)
    at gcc/passes.c:1171
#8  0x000000000063f41e in execute_pass_list (pass=0xee1f20)
    at gcc/passes.c:1171
#9  0x0000000000717e0e in tree_rest_of_compilation (fndecl=0x2ac82a1dc900)
    at gcc/tree-optimize.c:404
#10 0x000000000089adb2 in cgraph_expand_function (node=0x2ac82a1dca00)
    at gcc/cgraphunit.c:1060
#11 0x000000000089c858 in cgraph_optimize () at gcc/cgraphunit.c:1123
#12 0x0000000000414d9e in c_write_global_declarations () at gcc/c-decl.c:8077
#13 0x00000000006bb0b7 in toplev_main (argc=<value optimized out>, argv=<value
optimized out>)
    at gcc/toplev.c:1055
#14 0x00002ac829d85b44 in __libc_start_main () from /lib/libc.so.6
#15 0x00000000004043f9 in _start ()
(gdb)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[irar at il dot ibm dot com]

------- Comment #4 from irar at il dot ibm dot com  2007-10-22 07:23 -------
I am testing the following patch:

Index: tree-vect-analyze.c
===================================================================
--- tree-vect-analyze.c (revision 129404)
+++ tree-vect-analyze.c (working copy)
@@ -242,7 +242,8 @@ vect_determine_vectorization_factor (loo
              operation = GIMPLE_STMT_OPERAND (stmt, 1);
              if (TREE_CODE (operation) == NOP_EXPR
                  || TREE_CODE (operation) == CONVERT_EXPR
-                 || TREE_CODE (operation) == WIDEN_MULT_EXPR)
+                 || TREE_CODE (operation) == WIDEN_MULT_EXPR
+                  || TREE_CODE (operation) == FLOAT_EXPR)
                {
                  tree rhs_type = TREE_TYPE (TREE_OPERAND (operation, 0));
                  if (TREE_INT_CST_LOW (TYPE_SIZE_UNIT (rhs_type)) <

Ira


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[irar at gcc dot gnu dot org]

------- Comment #5 from irar at gcc dot gnu dot org  2007-10-22 12:05 -------
Subject: Bug 33854

Author: irar
Date: Mon Oct 22 12:05:36 2007
New Revision: 129549

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129549
Log:
        PR tree-optimization/33854
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Add
        FLOAT_EXPR to the list of promotion operations. 


Added:
    trunk/gcc/testsuite/gcc.dg/vect/O1-pr33854.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/vect/vect.exp
    trunk/gcc/tree-vect-analyze.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854

[Bug tree-optimization/33854] [4.3 Regression] ICE in vectorizable_conversion, at tree-vect-transform.c:3374

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2007-10-27 16:15 -------
Fixed.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33854