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This patch adds support for
* Complex Addition with rotation of 90 and 270.
Addition with rotation of the second argument around the Argand plane.
Supported rotations are 90 and 180.
c = a + (b * I) and c = a + (b * I * I * I)
gcc/ChangeLog:
* tree-vect-slp-patterns.c: New file.
* Makefile.in: Add it.
* doc/passes.texi: Document it.
* internal-fn.def (COMPLEX_ADD_ROT90, COMPLEX_ADD_ROT270): New.
* optabs.def (cadd90_optab, cadd270_optab): New.
* doc/md.texi: Document them.
* tree-vect-loop.c (vect_analyze_loop_2): Add dissolve code.
* tree-vect-slp.c:
(vect_free_slp_instance, vect_create_new_slp_node): Export.
(vect_match_slp_patterns_2, vect_match_slp_patterns): New.
(vect_analyze_slp): Use it.
* tree-vectorizer.h (vect_free_slp_tree): Export.
(enum _complex_operation): Forward declare.
(class vect_pattern): New
gcc/testsuite/ChangeLog:
* lib/target-supports.exp
(check_effective_target_arm_v8_3a_complex_neon_ok_nocache): Fix it.
(check_effective_target_vect_complex_add_byte
,check_effective_target_vect_complex_add_int
,check_effective_target_vect_complex_add_short
,check_effective_target_vect_complex_add_long
,check_effective_target_vect_complex_add_half
,check_effective_target_vect_complex_add_float
,check_effective_target_vect_complex_add_double): New.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-byte.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-int.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-long.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-short.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-unsigned-byte.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-unsigned-int.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-unsigned-long.c: New test.
* gcc.dg/vect/complex/bb-slp-complex-add-pattern-unsigned-short.c: New test.
* gcc.dg/vect/complex/complex-add-pattern-template.c: New test.
* gcc.dg/vect/complex/complex-add-template.c: New test.
* gcc.dg/vect/complex/complex-operations-run.c: New test.
* gcc.dg/vect/complex/complex-operations.c: New test.
* gcc.dg/vect/complex/complex.exp: New test.
* gcc.dg/vect/complex/fast-math-bb-slp-complex-add-double.c: New test.
* gcc.dg/vect/complex/fast-math-bb-slp-complex-add-float.c: New test.
* gcc.dg/vect/complex/fast-math-bb-slp-complex-add-half-float.c: New test.
* gcc.dg/vect/complex/fast-math-bb-slp-complex-add-pattern-double.c: New test.
* gcc.dg/vect/complex/fast-math-bb-slp-complex-add-pattern-float.c: New test.
* gcc.dg/vect/complex/fast-math-bb-slp-complex-add-pattern-half-float.c: New test.
* gcc.dg/vect/complex/fast-math-complex-add-double.c: New test.
* gcc.dg/vect/complex/fast-math-complex-add-float.c: New test.
* gcc.dg/vect/complex/fast-math-complex-add-half-float.c: New test.
* gcc.dg/vect/complex/fast-math-complex-add-pattern-double.c: New test.
* gcc.dg/vect/complex/fast-math-complex-add-pattern-float.c: New test.
* gcc.dg/vect/complex/fast-math-complex-add-pattern-half-float.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-byte.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-int.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-long.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-short.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-unsigned-byte.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-unsigned-int.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-unsigned-long.c: New test.
* gcc.dg/vect/complex/vect-complex-add-pattern-unsigned-short.c: New test.
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