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| author | Richard Earnshaw <rearnsha@arm.com> | 2018-07-31 17:35:41 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2018-07-31 17:35:41 +0000 |
| commit | bb8b0096829209874018c0997f340a43ca8b0461 (patch) | |
| tree | 79af8681cb57ea7e1bfb064447c4022c25ff121c /gcc/config/arm/unspecs.md | |
| parent | 425fc685dd59c07316a0c9112595331aa77ba112 (diff) | |
| download | gcc-bb8b0096829209874018c0997f340a43ca8b0461.tar.gz | |
Arm - add speculation_barrier pattern
This patch defines a speculation barrier for AArch32.
* config/arm/unspecs.md (unspecv): Add VUNSPEC_SPECULATION_BARRIER.
* config/arm/arm.md (speculation_barrier): New expand.
(speculation_barrier_insn): New pattern.
From-SVN: r263169
Diffstat (limited to 'gcc/config/arm/unspecs.md')
| -rw-r--r-- | gcc/config/arm/unspecs.md | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/config/arm/unspecs.md b/gcc/config/arm/unspecs.md index b05f85e10e4..19416736ef9 100644 --- a/gcc/config/arm/unspecs.md +++ b/gcc/config/arm/unspecs.md @@ -168,6 +168,7 @@ VUNSPEC_MCRR2 ; Represent the coprocessor mcrr2 instruction. VUNSPEC_MRRC ; Represent the coprocessor mrrc instruction. VUNSPEC_MRRC2 ; Represent the coprocessor mrrc2 instruction. + VUNSPEC_SPECULATION_BARRIER ; Represents an unconditional speculation barrier. ]) ;; Enumerators for NEON unspecs. |