Fix vectorizer costs of COND_EXPR, MIN_EXPR, MAX_EXPR, ABS_EXPR, ABSU_EXPRHEADtrunkmaster

this patch adds special cases for vectorizer costs in COND_EXPR, MIN_EXPR,
MAX_EXPR, ABS_EXPR and ABSU_EXPR.   We previously costed ABS_EXPR and ABSU_EXPR
but it was only correct for FP variant (wehre it corresponds to andss clearing
sign bit).  Integer abs/absu is open coded as conditinal move for SSE2 and
SSE3 instroduced an instruction.

MIN_EXPR/MAX_EXPR compiles to minss/maxss for FP and accroding to Agner Fog
tables they costs same as sse_op on all targets. Integer translated to single
instruction since SSE3.

COND_EXPR translated to open-coded conditional move for SSE2, SSE4.1 simplified
the sequence and AVX512 introduced masked registers.

gcc/ChangeLog:

	* config/i386/i386.cc (ix86_vector_costs::add_stmt_cost): Add special cases
	for COND_EXPR; make MIN_EXPR, MAX_EXPR, ABS_EXPR and ABSU_EXPR more realistic.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/pr89618-2.c: XFAIL.

0 files changed, 0 insertions, 0 deletions