Similarly, there is a @code{targetcm} variable for hooks that are
specific to front ends for C-family languages, documented as ``C
Target Hook''. This is declared in @file{c-family/c-target.h}, the
-the initializer @code{TARGETCM_INITIALIZER} in
+initializer @code{TARGETCM_INITIALIZER} in
@file{c-family/c-target-def.h}. If targets initialize @code{targetcm}
themselves, they should set @code{target_has_targetcm=yes} in
@file{config.gcc}; otherwise a default definition is used.
certain operand, you should define a class @code{FLOAT_OR_GENERAL_REGS}
which includes both of them. Otherwise you will get suboptimal code,
or even internal compiler errors when reload cannot find a register in the
-the class computed via @code{reg_class_subunion}.
+class computed via @code{reg_class_subunion}.
You must also specify certain redundant information about the register
classes: for each class, which classes contain it and which ones are