Re: [PATCH v2,rs6000] PR78056: Finish fixing build failure on Power7

[Segher Boessenkool <segher at kernel dot crashing dot org>]

Hi Kelvin,

On Fri, Dec 16, 2016 at 04:57:12PM -0700, Kelvin Nilsen wrote:
> 2016-12-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
> 
> 	PR target/78056
> 	* gcc.target/powerpc/pr78056-1.c: New test.
> 	* gcc.target/powerpc/pr78056-2.c: New test.
> 	* gcc.target/powerpc/pr78056-3.c: New test.
> 	* gcc.target/powerpc/pr78056-4.c: New test.
> 	* gcc.target/powerpc/pr78056-5.c: New test.
> 	* gcc.target/powerpc/pr78056-6.c: New test.
> 	* gcc.target/powerpc/pr78056-7.c: New test.
> 	* gcc.target/powerpc/pr78056-8.c: New test.
> 	* lib/target-supports.exp
> 	(check_effective_target_powerpc_popcntb_ok): New procedure to test
> 	whether the effective target supports the popcntb instruction.
> 
> gcc/ChangeLog:
> 
> 2016-12-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
> 
> 	PR target/78056
> 	* doc/sourcebuild.texi (PowerPC-specific attributes): Add
> 	documentation of the powerpc_popcntb_ok attribute.
> 	* config/rs6000/rs6000.c (rs6000_option_override_internal): Add
> 	code to issue warning messages if a requested CPU configuration is
> 	not supported by the binary (assembler and loader) toolchain.
> 	(spe_init_builtins): Add two assertions to prevent ICE if attempt is
> 	made to define a built-in function that has been disabled.
> 	(paired_init_builtins): Add assertion to prevent ICE if attempt is
> 	made to define a built-in function that has been disabled.
> 	(altivec_init_builtins): Add comment explaining why definition
> 	of the DST built-in functions is not preceded by an assertion
> 	check.  Add assertions to prevent ICE if attempts are made to
> 	define an altivec predicate or an abs* built-in function that has
> 	been disabled.
> 	(htm_init_builtins): Add comment explaining why definition of the
> 	htm built-in functions is not preceded by an assertion check.

Approved for trunk, please apply.  I don't think things are perfect yet,
but this is a step forward :-)


Segher