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i386.c (ix86_cannot_change_mode_class): Remove GET_MODE_SIZE (to) < GET_MODE_SIZE (from) test.

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gcc/
	* config/i386/i386.c (ix86_cannot_change_mode_class): Remove
	GET_MODE_SIZE (to) < GET_MODE_SIZE (from) test.

From-SVN: r215450
This commit is contained in:
Richard Sandiford 2014-09-22 07:38:46 +00:00 • committed by Richard Sandiford
parent 6969eb0dcf
commit c2095627b7
2 changed files with 5 additions and 7 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-09-22 Richard Sandiford <richard.sandiford@arm.com>
* config/i386/i386.c (ix86_cannot_change_mode_class): Remove
GET_MODE_SIZE (to) < GET_MODE_SIZE (from) test.
2014-09-22 Richard Sandiford <richard.sandiford@arm.com>
* hard-reg-set.h: Include hash-table.h.

7
gcc/config/i386/i386.c
View file

@ -37522,13 +37522,6 @@ ix86_cannot_change_mode_class (enum machine_mode from, enum machine_mode to,
the vec_dupv4hi pattern. */
if (GET_MODE_SIZE (from) < 4)
return true;
/* Vector registers do not support subreg with nonzero offsets, which
are otherwise valid for integer registers. Since we can't see
whether we have a nonzero offset from here, prohibit all
nonparadoxical subregs changing size. */
if (GET_MODE_SIZE (to) < GET_MODE_SIZE (from))
return true;
}
return false;