tree 6b85c07744f373070b696c17c2d72d05314c1db2
parent f0024bfb228f94e60e06dc32a4983e40a9b90be5
author Richard Biener <rguenther@suse.de> 1668674611 +0100
committer Richard Biener <rguenther@suse.de> 1668757043 +0100

tree-optimization/107647 - avoid FMA from SLP with -ffp-contract=off

Only with -ffp-contract=fast we can synthesize FMA operations like
vfmaddsub231ps, so properly guard the transform in SLP pattern
detection.

	PR tree-optimization/107647
	* tree-vect-slp-patterns.cc (addsub_pattern::recognize): Only
	allow FMA generation with -ffp-contract=fast for FP types.
	(complex_mul_pattern::matches): Likewise.

	* gcc.target/i386/pr107647.c: New testcase.