===================================================================
@@ -1286,10 +1286,9 @@ assign_by_spills (void)
break;
if (iter > 0)
{
- /* We did not assign hard regs to reload pseudos after two
- iteration. It means something is wrong with asm insn
- constraints. Report it. */
- bool asm_p = false;
+ /* We did not assign hard regs to reload pseudos after two iterations.
+ Either it's an asm and something is wrong with the constraints, or
+ we have run out of spill registers; error out in either case. */
bitmap_head failed_reload_insns;
bitmap_initialize (&failed_reload_insns, ®_obstack);
@@ -1299,7 +1298,7 @@ assign_by_spills (void)
bitmap_ior_into (&failed_reload_insns,
&lra_reg_info[regno].insn_bitmap);
/* Assign an arbitrary hard register of regno class to
- avoid further trouble with the asm insns. */
+ avoid further trouble with this insn. */
bitmap_clear_bit (&all_spilled_pseudos, regno);
assign_hard_regno
(ira_class_hard_regs[regno_allocno_class_array[regno]][0],
@@ -1310,7 +1309,6 @@ assign_by_spills (void)
insn = lra_insn_recog_data[u]->insn;
if (asm_noperands (PATTERN (insn)) >= 0)
{
- asm_p = true;
error_for_asm (insn,
"%<asm%> operand has impossible constraints");
/* Avoid further trouble with this insn.
@@ -1331,8 +1329,12 @@ assign_by_spills (void)
lra_set_insn_deleted (insn);
}
}
+ else
+ {
+ error ("unable to find a register to spill");
+ fatal_insn ("this is the insn:", insn);
+ }
}
- lra_assert (asm_p);
break;
}
/* This is a very rare event. We can not assign a hard register
> OK, I guess I can copy-and-paste reload1.c:spill_failure there. This generates the same error message than reload1.c:spill_failure (modulo the class of the spill register, but it's not mentioned in the asm case either). Tested on x86_64-suse-linux, OK for the mainline? 2014-10-09 Eric Botcazou <ebotcazou@adacore.com> * lra-assigns.c (assign_by_spills): Error out on spill failure.