-mforce-indirect-call generates invalid instruction in 32-bit MI thunk
since there are no available scratch registers in 32-bit PIC mode.
Disable -mforce-indirect-call for PIC in 32-bit mode when generating
MI thunk.
gcc/
PR target/105980
* config/i386/i386.cc (x86_output_mi_thunk): Disable
-mforce-indirect-call for PIC in 32-bit mode.
gcc/testsuite/
PR target/105980
* g++.target/i386/pr105980.C: New test.
rtx this_reg, tmp, fnaddr;
unsigned int tmp_regno;
rtx_insn *insn;
+ int saved_flag_force_indirect_call = flag_force_indirect_call;
if (TARGET_64BIT)
tmp_regno = R10_REG;
tmp_regno = DX_REG;
else
tmp_regno = CX_REG;
+
+ if (flag_pic)
+ flag_force_indirect_call = 0;
}
emit_note (NOTE_INSN_PROLOGUE_END);
final (insn, file, 1);
final_end_function ();
assemble_end_function (thunk_fndecl, fnname);
+
+ flag_force_indirect_call = saved_flag_force_indirect_call;
}
static void
--- /dev/null
+// { dg-do assemble { target { fpic } } }
+// { dg-options "-O0 -fpic -mforce-indirect-call" }
+
+struct A {
+ virtual ~A();
+};
+struct B : virtual A {};
+void bar() { B(); }