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aarch64 - Set the mode for the unspec in speculation_tracker insn. 

The speculation tracker insn in my recent patch set for CVE-2017-5753
was missing a mode on the UNSPEC.  Although this didn't break the
build, it did cause an unnecessary warning from the MD parsing
mechanism that I missed at the time.  It's a trivial fix, as follows:

	* config/aarch64/aarch64.md (speculation_tracker): Set the mode for
	the UNSPEC.

From-SVN: r265849
This commit is contained in:
Richard Earnshaw 2018-11-06 17:18:37 +00:00 committed by Richard Earnshaw
parent 3eb63272c5
commit 996bea89df
2 changed files with 7 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,9 +1,14 @@
2018-11-06 Richard Earnshaw <rearnsha@arm.com>
* config/aarch64/aarch64.md (speculation_tracker): Set the mode for
the UNSPEC.
2018-11-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/86850
* vec.h (vec<T, va_heap, vl_ptr>::splice): Check src.length ()
instead of src.m_vec.
2018-11-06 Jan Hubicka <jh@suse.cz>
* tree.c (fld_simplified_type_name): Break out form ...

2
gcc/config/aarch64/aarch64.md
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@ -6687,7 +6687,7 @@
;; SPECULATION_TRACKER_REGNUM is reserved for this purpose when necessary.
(define_insn "speculation_tracker"
[(set (reg:DI SPECULATION_TRACKER_REGNUM)
(unspec [(reg:DI SPECULATION_TRACKER_REGNUM) (match_operand 0)]
(unspec:DI [(reg:DI SPECULATION_TRACKER_REGNUM) (match_operand 0)]
UNSPEC_SPECULATION_TRACKER))]
""
{