[LLVMbugs] [Bug 15486] New: Dragonegg fails on DOT_PROD_EXPR

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=15486

            Bug ID: 15486
           Summary: Dragonegg fails on DOT_PROD_EXPR
           Product: dragonegg
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: New Bugs
          Assignee: baldrick at free.fr
          Reporter: sergey.galanov at intel.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 10166
  --> http://llvm.org/bugs/attachment.cgi?id=10166&action=edit
Input

GCC version is 4.6.2

This command line:

gcc -m32 -fplugin=.../dragonegg.so -S -O3
-fplugin-arg-dragonegg-enable-gcc-optzns test.c

produces this output:

 <dot_prod_expr 0x7fda4570e880
    type <vector_type 0x7fda494e1930
        type <integer_type 0x7fda49412498 int public SI
            size <integer_cst 0x7fda49400988 constant 32>
            unit size <integer_cst 0x7fda49400690 constant 4>
            align 32 symtab 0 alias set 3 canonical type 0x7fda49412498
precision 32 min <integer_cst 0x7fda49400910 -2147483648> max <integer_cst
0x7fda49400938 2147483647>
            pointer_to_this <pointer_type 0x7fda49421540>>
        V4SI
        size <integer_cst 0x7fda49400c58 constant 128>
        unit size <integer_cst 0x7fda49400c80 constant 16>
        align 128 symtab 0 alias set -1 canonical type 0x7fda494e1930 nunits 4>

    arg 0 <ssa_name 0x7fda45715a50
        type <vector_type 0x7fda494e1e70 type <integer_type 0x7fda49412348
short int>
            V8HI size <integer_cst 0x7fda49400c58 128> unit size <integer_cst
0x7fda49400c80 16>
            align 128 symtab 0 alias set 2 canonical type 0x7fda494e1e70 nunits
8
            pointer_to_this <pointer_type 0x7fda457101f8>>
        var <var_decl 0x7fda457181e0 vect_var_.48>def_stmt vect_var_.48_149 =
MEM[base: vect_p.47_146, index: ivtmp.73_95, offset: 0B];

        version 149>
    arg 1 <ssa_name 0x7fda45715d10 type <vector_type 0x7fda494e1e70>
        var <var_decl 0x7fda45718500 vect_var_.53>def_stmt vect_var_.53_154 =
MEM[base: vect_p.52_151, index: ivtmp.73_95, offset: 0B];

        version 154>
    arg 2 <ssa_name 0x7fda45715d68 type <vector_type 0x7fda494e1930>
        var <var_decl 0x7fda457185a0 vect_var_.54>def_stmt vect_var_.54_155 =
PHI <vect_var_.54_156(9), { 0, 0, 0, 0 }(8)>

        version 155>>
Unsupported gimple!
UNREACHABLE executed at
/localdisk/home/sgalanov/llvm/trunk/tools/dragonegg/src/Convert.cpp:6522!
*** WARNING *** there are active plugins, do not report this as a bug unless
you can reproduce it without enabling any plugins.
Event                            | Plugins
PLUGIN_FINISH_UNIT               | dragonegg
PLUGIN_FINISH                    | dragonegg
PLUGIN_START_UNIT                | dragonegg
PLUGIN_ALL_IPA_PASSES_END        | dragonegg
In function ‘matrix_mul_vect’:
cc1: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

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