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rs6000: Don't clear TARGET_ISEL implicitly

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We want to actually use isel, so we shouldn't disable it.  It is
already not set by default on CPUs that don't have it, or where we
do not want to use it.


	* config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
	disable isel if it was not set explicitly.

From-SVN: r254485
This commit is contained in:
Segher Boessenkool 2017-11-07 04:45:50 +01:00 • committed by Segher Boessenkool
parent a297ccb52e
commit 0ed1b4890a
2 changed files with 6 additions and 11 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-11-06 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
disable isel if it was not set explicitly.
2017-11-06 James Bowman <james.bowman@ftdichip.com>
* gcc/dwarf2out.c (modified_type_die): Retain ADDR_SPACE

12
gcc/config/rs6000/rs6000.c
View file

@ -4798,10 +4798,7 @@ rs6000_option_override_internal (bool global_init_p)
/* For the E500 family of cores, reset the single/double FP flags to let us
check that they remain constant across attributes or pragmas. Also,
clear a possible request for string instructions, not supported and which
we might have silently queried above for -Os.
For other families, clear ISEL in case it was set implicitly.
*/
we might have silently queried above for -Os. */
switch (rs6000_cpu)
{
@ -4811,19 +4808,12 @@ rs6000_option_override_internal (bool global_init_p)
case PROCESSOR_PPCE500MC64:
case PROCESSOR_PPCE5500:
case PROCESSOR_PPCE6500:
rs6000_single_float = 0;
rs6000_double_float = 0;
rs6000_isa_flags &= ~OPTION_MASK_STRING;
break;
default:
if (cpu_index >= 0 && !(rs6000_isa_flags_explicit & OPTION_MASK_ISEL))
rs6000_isa_flags &= ~OPTION_MASK_ISEL;
break;
}