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(adjust_priority): Comment unreachable code. 

(memrefs_conflict_p): Add comment about Fortran aliasing.

From-SVN: r3740
This commit is contained in:
Jim Wilson 1993-03-15 11:33:21 -08:00
parent 45c45e79fc
commit 8b69d15430
1 changed files with 5 additions and 0 deletions
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5
gcc/sched.c
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@ -514,6 +514,9 @@ find_symbolic_term (x)
Nice to notice that varying addresses cannot conflict with fp if no
local variables had their addresses taken, but that's too hard now. */
/* ??? In Fortran, references to a array parameter can never conflict with
another array parameter. */
static int
memrefs_conflict_p (xsize, x, ysize, y, c)
rtx x, y;
@ -2306,6 +2309,8 @@ adjust_priority (prev)
rtx note;
int n_deaths = 0;
/* ??? This code has no effect, because REG_DEAD notes are removed
before we ever get here. */
for (note = REG_NOTES (prev); note; note = XEXP (note, 1))
if (REG_NOTE_KIND (note) == REG_DEAD)
n_deaths += 1;