For -mcmodel=large, we have to load function address to a register.
PR target/112686
gcc/ChangeLog:
* config/i386/i386.cc (ix86_expand_split_stack_prologue): Load
function address to a register for ix86_cmodel == CM_LARGE.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr112686.c: New test.
SYMBOL_REF_FLAGS (split_stack_fn_large) |= SYMBOL_FLAG_LOCAL;
}
SYMBOL_REF_FLAGS (split_stack_fn_large) |= SYMBOL_FLAG_LOCAL;
}
+ fn = split_stack_fn_large;
+
if (ix86_cmodel == CM_LARGE_PIC)
{
rtx_code_label *label;
if (ix86_cmodel == CM_LARGE_PIC)
{
rtx_code_label *label;
emit_insn (gen_set_rip_rex64 (reg10, label));
emit_insn (gen_set_got_offset_rex64 (reg11, label));
emit_insn (gen_add2_insn (reg10, reg11));
emit_insn (gen_set_rip_rex64 (reg10, label));
emit_insn (gen_set_got_offset_rex64 (reg11, label));
emit_insn (gen_add2_insn (reg10, reg11));
- x = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, split_stack_fn_large),
- UNSPEC_GOT);
+ x = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, fn), UNSPEC_GOT);
x = gen_rtx_CONST (Pmode, x);
emit_move_insn (reg11, x);
x = gen_rtx_PLUS (Pmode, reg10, reg11);
x = gen_const_mem (Pmode, x);
fn = copy_to_suggested_reg (x, reg11, Pmode);
}
x = gen_rtx_CONST (Pmode, x);
emit_move_insn (reg11, x);
x = gen_rtx_PLUS (Pmode, reg10, reg11);
x = gen_const_mem (Pmode, x);
fn = copy_to_suggested_reg (x, reg11, Pmode);
}
- else
- fn = split_stack_fn_large;
+ else if (ix86_cmodel == CM_LARGE)
+ fn = copy_to_suggested_reg (fn, reg11, Pmode);
/* When using the large model we need to load the address
into a register, and we've run out of registers. So we
/* When using the large model we need to load the address
into a register, and we've run out of registers. So we
--- /dev/null
+/* PR target/112686 */
+/* { dg-do compile { target lp64 } } */
+/* { dg-options "-fsplit-stack -mcmodel=large" } */
+
+void foo (void) {}