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[Bug target/70107] New: ICE: in emit_move_insn, at expr.c:3546 with -mcpu=power8


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70107

            Bug ID: 70107
           Summary: ICE: in emit_move_insn, at expr.c:3546 with
                    -mcpu=power8
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
  Target Milestone: ---
            Target: ppc64le

trippels@gcc2-power8 test % cat apply.ii
struct {
  template <typename Base, typename T, typename Derived>
  auto operator()(T Base::*, Derived ref) -> decltype(ref);
} a;
struct TestClass {};
template <typename Signature, typename, typename Functor>
void test_b12(Functor f) {
  using ClassFunc = Signature TestClass::*;
  ClassFunc b;
  a(b, f);
}
void foo() {
  TestClass c;
  test_b12<int(), int>(c);
}

trippels@gcc2-power8 test % /home/trippels/gcc_test/usr/local/bin/g++ -w -c
-mcpu=power8 apply.ii
apply.ii: In function âvoid test_b12(Functor) [with Signature = int();
<template-parameter-1-2> = int; Functor = TestClass]â:
apply.ii:10:4: internal compiler error: in emit_move_insn, at expr.c:3546
   a(b, f);
   ~^~~~~~
0x106cd757 emit_move_insn(rtx_def*, rtx_def*)
        ../../gcc/gcc/expr.c:3545
0x10558def load_register_parameters
        ../../gcc/gcc/calls.c:2047
0x10558def expand_call(tree_node*, rtx_def*, int)
        ../../gcc/gcc/calls.c:3329
0x106c699f expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        ../../gcc/gcc/expr.c:10594
0x10570907 expand_expr
        ../../gcc/gcc/expr.h:256
0x10570907 expand_call_stmt
        ../../gcc/gcc/cfgexpand.c:2660
0x10570907 expand_gimple_stmt_1
        ../../gcc/gcc/cfgexpand.c:3548
0x10570907 expand_gimple_stmt
        ../../gcc/gcc/cfgexpand.c:3714
0x10574413 expand_gimple_basic_block
        ../../gcc/gcc/cfgexpand.c:5720
0x10579887 execute
        ../../gcc/gcc/cfgexpand.c:6335

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