[Bug rtl-optimization/64341] New: [5 regression] ICE in expand_expr_addr_expr_1, at expr.c:7718

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64341

            Bug ID: 64341
           Summary: [5 regression] ICE in expand_expr_addr_expr_1, at
                    expr.c:7718
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: ebotcazou at gcc dot gnu.org
              Host: sparc*-sun-solaris2.*
            Target: sparc*-sun-solaris2.*
             Build: sparc*-sun-solaris2.*

Since 20141021 (r216502), I see a the following ICE on 32-bit Solaris/SPARC:

FAIL: 21_strings/basic_string/modifiers/replace/wchar_t/4.cc (test for excess
errors)
WARNING: 21_strings/basic_string/modifiers/replace/wchar_t/4.cc compilation
failed to produce executable

Excess errors:
/vol/gcc/src/hg/trunk/local/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/replace/wchar_t/4.cc:29:1:
internal compiler error: in expand_expr_addr_expr_1, at expr.c:7718
0x66fe7f expand_expr_addr_expr_1
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:7718
0x66284b expand_expr_addr_expr
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:7832
0x66284b expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:10706

0x66284b expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:10706
0x54a53f expand_normal
        /vol/gcc/src/hg/trunk/local/gcc/expr.h:305
0x54a53f precompute_register_parameters
        /vol/gcc/src/hg/trunk/local/gcc/calls.c:869
0x54a53f expand_call(tree_node*, rtx_def*, int)
        /vol/gcc/src/hg/trunk/local/gcc/calls.c:3119
0x6619b7 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:10474
0x55e00b expand_expr
        /vol/gcc/src/hg/trunk/local/gcc/expr.h:299
0x55e00b expand_call_stmt
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:2347
0x55e00b expand_gimple_stmt_1
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:3293
0x55e00b expand_gimple_stmt
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:3447
0x563883 expand_gimple_basic_block
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:5280
0x565fdb execute
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:5889

Since 20141030 (r216932), there's another failure with the same ICE, again only
for 32-bit:

FAIL: g++.dg/ipa/pr63587-2.C  -std=gnu++11 (internal compiler error)
FAIL: g++.dg/ipa/pr63587-2.C  -std=gnu++11 (test for excess errors)
FAIL: g++.dg/ipa/pr63587-2.C  -std=gnu++14 (internal compiler error)
FAIL: g++.dg/ipa/pr63587-2.C  -std=gnu++14 (test for excess errors)

Excess errors:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/ipa/pr63587-2.C:21:3: internal
compiler error: in expand_expr_addr_expr_1, at expr.c:7718
0x66fe7f expand_expr_addr_expr_1
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:7718
0x66284b expand_expr_addr_expr
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:7718
0x66284b expand_expr_addr_expr
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:7832
0x66284b expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:10706
0x54a53f expand_normal
        /vol/gcc/src/hg/trunk/local/gcc/expr.h:305
0x54a53f precompute_register_parameters
        /vol/gcc/src/hg/trunk/local/gcc/calls.c:869
0x54a53f expand_call(tree_node*, rtx_def*, int)
        /vol/gcc/src/hg/trunk/local/gcc/calls.c:3119
0x6619b7 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:10474
0x67043f store_expr_with_bounds(tree_node*, rtx_def*, int, bool, tree_node*)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:5365
0x678e37 expand_assignment(tree_node*, tree_node*, bool)
        /vol/gcc/src/hg/trunk/local/gcc/expr.c:5137
0x55d803 expand_call_stmt
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:2345
0x55d803 expand_gimple_stmt_1
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:3293
0x55d803 expand_gimple_stmt_1
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:3293
0x55d803 expand_gimple_stmt
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:3447
0x563883 expand_gimple_basic_block
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:5280
0x565fdb execute
        /vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:5889

This might be a dup (or at least related) to PR rtl-optimization/64033.

  Rainer