i386: Use parametrized pattern names some more.

i386: Use parametrized pattern names some more.

Use parameterized pattern names to simplify calling of named patterns.

2020-08-15  Uroš Bizjak  <ubizjak@gmail.com>

gcc/ChangeLog:

	* config/i386/i386-builtin.def (__builtin_ia32_bextri_u32)
	(__builtin_ia32_bextri_u64): Use CODE_FOR_nothing.
	* config/i386/i386.md (@tbm_bextri_<mode>):
	Implement as parametrized name pattern.
	(@rdrand<mode>): Ditto.
	(@rdseed<mode>): Ditto.
	* config/i386/i386-expand.c (ix86_expand_builtin)
	[case IX86_BUILTIN_BEXTRI32, case IX86_BUILTIN_BEXTRI64]:
	Update for parameterized name patterns.
	[case IX86_BUILTIN_RDRAND16_STEP, case IX86_BUILTIN_RDRAND32_STEP]
	[case IX86_BUILTIN_RDRAND64_STEP]: Ditto.
	[case IX86_BUILTIN_RDSEED16_STEP, case IX86_BUILTIN_RDSEED32_STEP]
	[case IX86_BUILTIN_RDSEED64_STEP]: Ditto.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/rdrand-1.c (dg-final): Update scan string.
	* gcc.target/i386/rdrand-2.c (dg-final): Ditto.
	* gcc.target/i386/rdrand-3.c (dg-final): Ditto.