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Do not mess with rs6000_{single,double}_float (PR68028)

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For e500 family cores we do some questionable things with those flags,
which does not work with LTO.  So don't.


	* config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
	handle rs6000_single_float and rs6000_double_float specially for
	e500 family CPUs.

From-SVN: r257790
This commit is contained in:
Segher Boessenkool 2018-02-18 15:29:05 +01:00 committed by Segher Boessenkool
parent 9b90d49089
commit 9bbbdb49b4
2 changed files with 6 additions and 19 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2018-02-18 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
handle rs6000_single_float and rs6000_double_float specially for
e500 family CPUs.
2018-02-16 Jeff Law <law@redhat.com>
* config/rx/rx.c (add_pop_cfi_notes): New function.;

19
gcc/config/rs6000/rs6000.c
View File

@ -4820,25 +4820,6 @@ rs6000_option_override_internal (bool global_init_p)
if (TARGET_DEBUG_REG || TARGET_DEBUG_TARGET)
rs6000_print_isa_options (stderr, 0, "after subtarget", rs6000_isa_flags);
/* For the E500 family of cores, reset the single/double FP flags to let us
check that they remain constant across attributes or pragmas. */
switch (rs6000_cpu)
{
case PROCESSOR_PPC8540:
case PROCESSOR_PPC8548:
case PROCESSOR_PPCE500MC:
case PROCESSOR_PPCE500MC64:
case PROCESSOR_PPCE5500:
case PROCESSOR_PPCE6500:
rs6000_single_float = 0;
rs6000_double_float = 0;
break;
default:
break;
}
if (main_target_opt)
{
if (main_target_opt->x_rs6000_single_float != rs6000_single_float)