r259862 - in /trunk/gcc: ChangeLog config/i386/...

[jakub@gcc.gnu.org]

Author: jakub
Date: Wed May  2 21:56:17 2018
New Revision: 259862

URL: https://gcc.gnu.org/viewcvs?rev=259862&root=gcc&view=rev
Log:
	PR target/85582
	* config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
	*ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
	*<shift_insn><dwi>3_doubleword_mask_1): In condition require that
	the highest significant bit of the shift count mask is clear.  In
	check whether and[sq]i3 is needed verify that all significant bits
	of the shift count other than the highest are set.

	* gcc.c-torture/execute/pr85582-3.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr85582-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog