diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/rtl.texi | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index d698cee..96de365 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -3641,23 +3641,6 @@ instructions, such as the m68k dbra, can be matched. The @code{REG_NONNEG} note is added to insns only if the machine description has a @samp{decrement_and_branch_until_zero} pattern. -@findex REG_NO_CONFLICT -@item REG_NO_CONFLICT -This insn does not cause a conflict between @var{op} and the item -being set by this insn even though it might appear that it does. -In other words, if the destination register and @var{op} could -otherwise be assigned the same register, this insn does not -prevent that assignment. - -Insns with this note are usually part of a block that begins with a -@code{clobber} insn specifying a multi-word pseudo register (which will -be the output of the block), a group of insns that each set one word of -the value and have the @code{REG_NO_CONFLICT} note attached, and a final -insn that copies the output to itself with an attached @code{REG_EQUAL} -note giving the expression being computed. This block is encapsulated -with @code{REG_LIBCALL} and @code{REG_RETVAL} notes on the first and -last insns, respectively. - @findex REG_LABEL_OPERAND @item REG_LABEL_OPERAND This insn uses @var{op}, a @code{code_label} or a @code{note} of type |