rs6000: Backport fixes for PR92923 and PR93136

rs6000: Backport fixes for PR92923 and PR93136

This patch is to backport the fix for PR92923 and its sequent fix
for PR93136.  We found the builtin functions needlessly using
VIEW_CONVERT_EXPRs on their operands can probably cause remarkable
performance degradation especailly when they are used in the hotspot.
One typical case is
  ...github.com/antonblanchard/crc32-vpmsum/blob/master/vec_crc32.c
With this patch, the execution time can improve 47.81%.

Apart from the original fixes, this patch also gets two cases below
updated.  During the regression testing I found two cases failed due
to icf optimization able to be adopted with this patch, the function
bodies use tail calls, the expected assembly instructions are gone.

  gcc.target/powerpc/fold-vec-logical-ands-longlong.c
  gcc.target/powerpc/fold-vec-logical-ors-longlong.c

Bootstrapped/regtested on powerpc64{,le}-linux-gnu P8.

2019-12-30  Peter Bergner <bergner@linux.ibm.com>

gcc/ChangeLog

	PR target/92923
	* config/rs6000/rs6000-builtin.def (VAND, VANDC, VNOR, VOR, VXOR):
	Delete.
	(EQV_V16QI_UNS, EQV_V8HI_UNS, EQV_V4SI_UNS, EQV_V2DI_UNS, EQV_V1TI_UNS,
	NAND_V16QI_UNS, NAND_V8HI_UNS, NAND_V4SI_UNS, NAND_V2DI_UNS,
	NAND_V1TI_UNS, ORC_V16QI_UNS, ORC_V8HI_UNS, ORC_V4SI_UNS, ORC_V2DI_UNS,
	ORC_V1TI_UNS, VAND_V16QI_UNS, VAND_V16QI, VAND_V8HI_UNS, VAND_V8HI,
	VAND_V4SI_UNS, VAND_V4SI, VAND_V2DI_UNS, VAND_V2DI, VAND_V4SF,
	VAND_V2DF, VANDC_V16QI_UNS, VANDC_V16QI, VANDC_V8HI_UNS, VANDC_V8HI,
	VANDC_V4SI_UNS, VANDC_V4SI, VANDC_V2DI_UNS, VANDC_V2DI, VANDC_V4SF,
	VANDC_V2DF, VNOR_V16QI_UNS, VNOR_V16QI, VNOR_V8HI_UNS, VNOR_V8HI,
	VNOR_V4SI_UNS, VNOR_V4SI, VNOR_V2DI_UNS, VNOR_V2DI, VNOR_V4SF,
	VNOR_V2DF, VOR_V16QI_UNS, VOR_V16QI, VOR_V8HI_UNS, VOR_V8HI,
	VOR_V4SI_UNS, VOR_V4SI, VOR_V2DI_UNS, VOR_V2DI, VOR_V4SF, VOR_V2DF,
	VXOR_V16QI_UNS, VXOR_V16QI, VXOR_V8HI_UNS, VXOR_V8HI,
	VXOR_V4SI_UNS, VXOR_V4SI, VXOR_V2DI_UNS, VXOR_V2DI, VXOR_V4SF,
	VXOR_V2DF): Add definitions.
	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins)
	<ALTIVEC_BUILTIN_VAND, ALTIVEC_BUILTIN_VANDC, ALTIVEC_BUILTIN_VNOR,
	ALTIVEC_BUILTIN_VOR, ALTIVEC_BUILTIN_VXOR>: Remove.
	<ALTIVEC_BUILTIN_VAND_V4SF, ALTIVEC_BUILTIN_VAND_V2DF,
	ALTIVEC_BUILTIN_VAND_V2DI, ALTIVEC_BUILTIN_VAND_V2DI_UNS,
	ALTIVEC_BUILTIN_VAND_V4SI_UNS, ALTIVEC_BUILTIN_VAND_V4SI,
	ALTIVEC_BUILTIN_VAND_V8HI_UNS, ALTIVEC_BUILTIN_VAND_V8HI,
	ALTIVEC_BUILTIN_VAND_V16QI, ALTIVEC_BUILTIN_VAND_V16QI_UNS,
	ALTIVEC_BUILTIN_VANDC_V4SF, ALTIVEC_BUILTIN_VANDC_V2DF,
	ALTIVEC_BUILTIN_VANDC_V2DI, ALTIVEC_BUILTIN_VANDC_V2DI_UNS,
	ALTIVEC_BUILTIN_VANDC_V4SI_UNS, ALTIVEC_BUILTIN_VANDC_V4SI,
	ALTIVEC_BUILTIN_VANDC_V8HI_UNS, ALTIVEC_BUILTIN_VANDC_V8HI,
	ALTIVEC_BUILTIN_VANDC_V16QI, ALTIVEC_BUILTIN_VANDC_V16QI_UNS,
	ALTIVEC_BUILTIN_VNOR_V4SF, ALTIVEC_BUILTIN_VNOR_V2DF,
	ALTIVEC_BUILTIN_VNOR_V2DI, ALTIVEC_BUILTIN_VNOR_V2DI_UNS,
	ALTIVEC_BUILTIN_VNOR_V4SI, ALTIVEC_BUILTIN_VNOR_V4SI_UNS,
	ALTIVEC_BUILTIN_VNOR_V8HI, ALTIVEC_BUILTIN_VNOR_V8HI_UNS,
	ALTIVEC_BUILTIN_VNOR_V16QI, ALTIVEC_BUILTIN_VNOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VOR_V4SF, ALTIVEC_BUILTIN_VOR_V2DF,
	ALTIVEC_BUILTIN_VOR_V2DI, ALTIVEC_BUILTIN_VOR_V2DI_UNS,
	ALTIVEC_BUILTIN_VOR_V4SI_UNS, ALTIVEC_BUILTIN_VOR_V4SI,
	ALTIVEC_BUILTIN_VOR_V8HI_UNS, ALTIVEC_BUILTIN_VOR_V8HI,
	ALTIVEC_BUILTIN_VOR_V16QI, ALTIVEC_BUILTIN_VOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VXOR_V4SF, ALTIVEC_BUILTIN_VXOR_V2DF,
	ALTIVEC_BUILTIN_VXOR_V2DI, ALTIVEC_BUILTIN_VXOR_V2DI_UNS,
	ALTIVEC_BUILTIN_VXOR_V4SI_UNS, ALTIVEC_BUILTIN_VXOR_V4SI,
	ALTIVEC_BUILTIN_VXOR_V8HI, ALTIVEC_BUILTIN_VXOR_V8HI_UNS,
	ALTIVEC_BUILTIN_VXOR_V16QI, ALTIVEC_BUILTIN_VXOR_V16QI_UNS>: Add
	definitions.
	<P8V_BUILTIN_EQV_V16QI, P8V_BUILTIN_EQV_V8HI, P8V_BUILTIN_EQV_V4SI,
	P8V_BUILTIN_EQV_V2DI, P8V_BUILTIN_NAND_V16QI, P8V_BUILTIN_NAND_V8HI,
	P8V_BUILTIN_NAND_V4SI, P8V_BUILTIN_NAND_V2DI, P8V_BUILTIN_ORC_V16QI,
	P8V_BUILTIN_ORC_V8HI, P8V_BUILTIN_ORC_V4SI,
	P8V_BUILTIN_ORC_V2DI>: Change unsigned usages to use the new *_UNS
	definition names.
	* config/rs6000/rs6000.c
	(rs6000_gimple_fold_builtin) <ALTIVEC_BUILTIN_VAND_V16QI_UNS,
	ALTIVEC_BUILTIN_VAND_V16QI, ALTIVEC_BUILTIN_VAND_V8HI_UNS,
	ALTIVEC_BUILTIN_VAND_V8HI, ALTIVEC_BUILTIN_VAND_V4SI_UNS,
	ALTIVEC_BUILTIN_VAND_V4SI, ALTIVEC_BUILTIN_VAND_V2DI_UNS,
	ALTIVEC_BUILTIN_VAND_V2DI, ALTIVEC_BUILTIN_VAND_V4SF,
	ALTIVEC_BUILTIN_VAND_V2DF, ALTIVEC_BUILTIN_VANDC_V16QI_UNS,
	ALTIVEC_BUILTIN_VANDC_V16QI, ALTIVEC_BUILTIN_VANDC_V8HI_UNS,
	ALTIVEC_BUILTIN_VANDC_V8HI, ALTIVEC_BUILTIN_VANDC_V4SI_UNS,
	ALTIVEC_BUILTIN_VANDC_V4SI, ALTIVEC_BUILTIN_VANDC_V2DI_UNS,
	ALTIVEC_BUILTIN_VANDC_V2DI, ALTIVEC_BUILTIN_VANDC_V4SF,
	ALTIVEC_BUILTIN_VANDC_V2DF, P8V_BUILTIN_NAND_V16QI_UNS,
	P8V_BUILTIN_NAND_V8HI_UNS, P8V_BUILTIN_NAND_V4SI_UNS,
	P8V_BUILTIN_NAND_V2DI_UNS, P8V_BUILTIN_NAND_V2DI,
	ALTIVEC_BUILTIN_VOR_V16QI_UNS, ALTIVEC_BUILTIN_VOR_V16QI,
	ALTIVEC_BUILTIN_VOR_V8HI_UNS, ALTIVEC_BUILTIN_VOR_V8HI,
	ALTIVEC_BUILTIN_VOR_V4SI_UNS, ALTIVEC_BUILTIN_VOR_V4SI,
	ALTIVEC_BUILTIN_VOR_V2DI_UNS, ALTIVEC_BUILTIN_VOR_V2DI,
	ALTIVEC_BUILTIN_VOR_V4SF, ALTIVEC_BUILTIN_VOR_V2DF,
	P8V_BUILTIN_ORC_V16QI_UNS, P8V_BUILTIN_ORC_V8HI_UNS,
	P8V_BUILTIN_ORC_V4SI_UNS, P8V_BUILTIN_ORC_V2DI_UNS,
	P8V_BUILTIN_ORC_V2DI, ALTIVEC_BUILTIN_VXOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VXOR_V16QI, ALTIVEC_BUILTIN_VXOR_V8HI_UNS,
	ALTIVEC_BUILTIN_VXOR_V8HI, ALTIVEC_BUILTIN_VXOR_V4SI_UNS,
	ALTIVEC_BUILTIN_VXOR_V4SI, ALTIVEC_BUILTIN_VXOR_V2DI_UNS,
	ALTIVEC_BUILTIN_VXOR_V2DI, ALTIVEC_BUILTIN_VXOR_V4SF,
	ALTIVEC_BUILTIN_VXOR_V2DF, ALTIVEC_BUILTIN_VNOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VNOR_V16QI, ALTIVEC_BUILTIN_VNOR_V8HI_UNS,
	ALTIVEC_BUILTIN_VNOR_V8HI, ALTIVEC_BUILTIN_VNOR_V4SI_UNS,
	ALTIVEC_BUILTIN_VNOR_V4SI, ALTIVEC_BUILTIN_VNOR_V2DI_UNS,
	ALTIVEC_BUILTIN_VNOR_V2DI, ALTIVEC_BUILTIN_VNOR_V4SF,
	ALTIVEC_BUILTIN_VNOR_V2DF>: Use new definition names.
	(builtin_function_type) <ALTIVEC_BUILTIN_VAND_V16QI_UNS,
	ALTIVEC_BUILTIN_VAND_V8HI_UNS, ALTIVEC_BUILTIN_VAND_V4SI_UNS,
	ALTIVEC_BUILTIN_VAND_V2DI_UNS, ALTIVEC_BUILTIN_VANDC_V16QI_UNS,
	ALTIVEC_BUILTIN_VANDC_V8HI_UNS, ALTIVEC_BUILTIN_VANDC_V4SI_UNS,
	ALTIVEC_BUILTIN_VANDC_V2DI_UNS, ALTIVEC_BUILTIN_VNOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VNOR_V8HI_UNS, ALTIVEC_BUILTIN_VNOR_V4SI_UNS,
	ALTIVEC_BUILTIN_VNOR_V2DI_UNS, ALTIVEC_BUILTIN_VOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VOR_V8HI_UNS, ALTIVEC_BUILTIN_VOR_V4SI_UNS,
	ALTIVEC_BUILTIN_VOR_V2DI_UNS, ALTIVEC_BUILTIN_VXOR_V16QI_UNS,
	ALTIVEC_BUILTIN_VXOR_V8HI_UNS, ALTIVEC_BUILTIN_VXOR_V4SI_UNS,
	ALTIVEC_BUILTIN_VXOR_V2DI_UNS, P8V_BUILTIN_EQV_V16QI_UNS,
	P8V_BUILTIN_EQV_V8HI_UNS, P8V_BUILTIN_EQV_V4SI_UNS,
	P8V_BUILTIN_EQV_V2DI_UNS, P8V_BUILTIN_EQV_V1TI_UNS,
	P8V_BUILTIN_NAND_V16QI_UNS, P8V_BUILTIN_NAND_V8HI_UNS,
	P8V_BUILTIN_NAND_V4SI_UNS, P8V_BUILTIN_NAND_V2DI_UNS,
	P8V_BUILTIN_NAND_V1TI_UNS, P8V_BUILTIN_ORC_V16QI_UNS,
	P8V_BUILTIN_ORC_V8HI_UNS, P8V_BUILTIN_ORC_V4SI_UNS,
	P8V_BUILTIN_ORC_V2DI_UNS, P8V_BUILTIN_ORC_V1TI_UNS>: Handle unsigned
	builtins.

2019-12-30  Peter Bergner  <bergner@linux.ibm.com>
2020-02-08  Peter Bergner  <bergner@linux.ibm.com>

gcc/testsuite/ChangeLog

	* gcc.target/powerpc/fold-vec-logical-ands-longlong.c: Adjust.
	* gcc.target/powerpc/fold-vec-logical-ors-longlong.c: Likewise.

	PR target/92923
	* gcc.target/powerpc/pr92923-1.c: New test.
	* gcc.target/powerpc/pr92923-2.c: Likewise.

	PR target/93136
	* gcc.dg/vmx/ops.c: Add -flax-vector-conversions to dg-options.
	* gcc.target/powerpc/vsx-vector-6.h: Split tests into smaller functions.
	* gcc.target/powerpc/vsx-vector-6.p7.c: Adjust scan-assembler-times
	regex directives.  Adjust expected instruction counts.
	* gcc.target/powerpc/vsx-vector-6.p8.c: Likewise.
	* gcc.target/powerpc/vsx-vector-6.p9.c: Likewise.

(cherry picked from commit 4559be2358020714ec7521c80589992716d23035)
(cherry picked from commit 4b39d801b2698d0f756231f6f8fa0be5a36f0c05)