diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/rtl.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index 79baa10..ba72b48 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -882,6 +882,14 @@ Stored in the @code{volatil} field and printed as @samp{/v}. Most uses of @code{SYMBOL_REF_FLAG} are historic and may be subsumed by @code{SYMBOL_REF_FLAGS}. Certainly use of @code{SYMBOL_REF_FLAGS} is mandatory if the target requires more than one bit of storage. + +@findex PREFETCH_SCHEDULE_BARRIER_P +@cindex @code{prefetch} and @samp{/v} +@cindex @code{volatile}, in @code{prefetch} +@item PREFETCH_SCHEDULE_BARRIER_P (@var{x}) +In a @code{prefetch}, indicates that the prefetch is a scheduling barrier. +No other INSNs will be moved over it. +Stored in the @code{volatil} field and printed as @samp{/v}. @end table These are the fields to which the above macros refer: @@ -1034,6 +1042,9 @@ In an @code{insn}, 1 means the insn has been deleted. In @code{label_ref} and @code{reg_label} expressions, 1 means a reference to a non-local label. +In @code{prefetch} expressions, 1 means that the containing insn is a +scheduling barrier. + In an RTL dump, this flag is represented as @samp{/v}. @end table |