gcc/gcc/reg-notes.def

11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
21 /* This file defines all the codes that may appear on individual
43 /* Describes the insn as a whole; it says that the insn sets a
51    could be used to hold that pseudo-register throughout the function.  */
54 /* Like REG_EQUIV except that the destination is only momentarily
67    call and points at the one that has the REG_RETVAL.  This note is
72    This is used in branches so that decrement and branch instructions
85 /* REG_CC_SETTER and REG_CC_USER link a pair of insns that set and use
88    of a branch as long as only one copy of the insn exists.  In that
95 /* Points to a CODE_LABEL.  Used by non-JUMP_INSNs to say that the
106    integer value.  For jumps, it is the probability that this is a
107    taken branch.  For calls, it is the probability that this call
112    insn before that the code to profile the value is inserted.  It
116 /* Attached to a call insn; indicates that the call is malloc-like and
117    that the pointer returned cannot alias anything else.  */
122    that added the note, second specifies the predicted hitrate of
126 /* Attached to insns that are RTX_FRAME_RELATED_P, but are too complex
131 /* Indicates that REG holds the exception context for the function.
138    indicates that a call cannot throw at all.  REGION -1 indicates
139    that it cannot throw, nor will it execute a non-local goto.  */
145 /* Indicates that this insn (which is part of the prologue) computes a
151 /* Indicates that a call does not return.  */
154 /* Indicates that an indirect jump is a non-local goto instead of a
158 /* Indicates that a jump crosses between hot and cold sections in a
164    functions that can return twice.  */