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(NOTE_INSN_FUNCTION_BEG): Make non-zero. 

From-SVN: r4226
This commit is contained in:
Doug Evans 1993-04-26 00:18:16 +00:00
parent 0020519f3a
commit a31efb86f6
2 changed files with 16 additions and 7 deletions
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4
gcc/rtl.c
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@ -170,13 +170,13 @@ char rtx_class[] = {
/* Names for kinds of NOTEs and REG_NOTEs. */
char *note_insn_name[] = { "NOTE_INSN_FUNCTION_BEG", "NOTE_INSN_DELETED",
char *note_insn_name[] = { 0 , "NOTE_INSN_DELETED",
"NOTE_INSN_BLOCK_BEG", "NOTE_INSN_BLOCK_END",
"NOTE_INSN_LOOP_BEG", "NOTE_INSN_LOOP_END",
"NOTE_INSN_FUNCTION_END", "NOTE_INSN_SETJMP",
"NOTE_INSN_LOOP_CONT", "NOTE_INSN_LOOP_VTOP",
"NOTE_INSN_PROLOGUE_END", "NOTE_INSN_EPILOGUE_BEG",
"NOTE_INSN_DELETED_LABEL"};
"NOTE_INSN_DELETED_LABEL", "NOTE_INSN_FUNCTION_BEG"};
char *reg_note_name[] = { "", "REG_DEAD", "REG_INC", "REG_EQUIV", "REG_WAS_0",
"REG_EQUAL", "REG_RETVAL", "REG_LIBCALL",

19
gcc/rtl.h
View File

@ -353,11 +353,17 @@ extern char *reg_note_name[];
#define NOTE_LINE_NUMBER(INSN) ((INSN)->fld[4].rtint)
/* Codes that appear in the NOTE_LINE_NUMBER field
for kinds of notes that are not line numbers. */
for kinds of notes that are not line numbers.
/* This note indicates the end of the real body of the function,
after moving the parms into their homes, etc. */
#define NOTE_INSN_FUNCTION_BEG 0
Notice that we do not try to use zero here for any of
the special note codes because sometimes the source line
actually can be zero! This happens (for example) when we
are generating code for the per-translation-unit constructor
and destructor routines for some C++ translation unit.
If you should change any of the following values, or if you
should add a new value here, don't forget to change the
note_insn_name array in rtl.c. */
/* This note is used to get rid of an insn
when it isn't safe to patch the insn out of the chain. */
@ -384,7 +390,10 @@ extern char *reg_note_name[];
#define NOTE_INSN_EPILOGUE_BEG -11
/* Generated in place of user-declared labels when they are deleted. */
#define NOTE_INSN_DELETED_LABEL -12
/* Don't forget to change note_insn_name in rtl.c. */
/* This note indicates the start of the real body of the function,
i.e. the point just after all of the parms have been moved into
their homes, etc. */
#define NOTE_INSN_FUNCTION_BEG -13
#if 0 /* These are not used, and I don't know what they were for. --rms. */