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| author | Bernd Schmidt <bernds@redhat.com> | 2001-08-08 10:38:57 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2001-08-08 10:38:57 +0000 |
| commit | 917004442036172e64e70b1d0a4a7392069af9cd (patch) | |
| tree | 7400c2594762a88011f7c77c8ed35b1d7229f9df | |
| parent | 4b6c5340748f9914998e4beafe3832acfe5d8aae (diff) | |
| download | gcc-917004442036172e64e70b1d0a4a7392069af9cd.zip gcc-917004442036172e64e70b1d0a4a7392069af9cd.tar.gz gcc-917004442036172e64e70b1d0a4a7392069af9cd.tar.bz2 | |
Make cselib_subst_to_values global.
From-SVN: r44717
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cselib.c | 18 | ||||
| -rw-r--r-- | gcc/cselib.h | 1 |
3 files changed, 21 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4b5de19..aa78d55 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -15,6 +15,11 @@ * sched-rgn.c (rgn_sched_info): Likewise. * Makefile.in (sched-deps.o): Update dependencies. + * cselib.h (cselib_subst_to_values): Declare. + * cselib.c (cselib_subst_to_values): No longer static. Allow MEMs + that have no value and autoincs to be handled by generating a new + dummy value. + 2001-08-08 Graham Stott <grahams@redhat.com> * final.c (shorten_branches): Update the INSN_ADDRESSES of insns diff --git a/gcc/cselib.c b/gcc/cselib.c index 1311766..89a274f 100644 --- a/gcc/cselib.c +++ b/gcc/cselib.c @@ -60,7 +60,6 @@ static cselib_val *new_cselib_val PARAMS ((unsigned int, static void add_mem_for_addr PARAMS ((cselib_val *, cselib_val *, rtx)); static cselib_val *cselib_lookup_mem PARAMS ((rtx, int)); -static rtx cselib_subst_to_values PARAMS ((rtx)); static void cselib_invalidate_regno PARAMS ((unsigned int, enum machine_mode)); static int cselib_mem_conflict_p PARAMS ((rtx, rtx)); @@ -765,7 +764,7 @@ cselib_lookup_mem (x, create) X isn't actually modified; if modifications are needed, new rtl is allocated. However, the return value can share rtl with X. */ -static rtx +rtx cselib_subst_to_values (x) rtx x; { @@ -788,7 +787,11 @@ cselib_subst_to_values (x) case MEM: e = cselib_lookup_mem (x, 0); if (! e) - abort (); + { + /* This happens for autoincrements. Assign a value that doesn't + match any other. */ + e = new_cselib_val (++next_unknown_value, GET_MODE (x)); + } return e->u.val_rtx; /* CONST_DOUBLEs must be special-cased here so that we won't try to @@ -797,6 +800,15 @@ cselib_subst_to_values (x) case CONST_INT: return x; + case POST_INC: + case PRE_INC: + case POST_DEC: + case PRE_DEC: + case POST_MODIFY: + case PRE_MODIFY: + e = new_cselib_val (++next_unknown_value, GET_MODE (x)); + return e->u.val_rtx; + default: break; } diff --git a/gcc/cselib.h b/gcc/cselib.h index 59f811a..a3f7ee9 100644 --- a/gcc/cselib.h +++ b/gcc/cselib.h @@ -65,3 +65,4 @@ extern void cselib_finish PARAMS ((void)); extern void cselib_process_insn PARAMS ((rtx)); extern int rtx_equal_for_cselib_p PARAMS ((rtx, rtx)); extern int references_value_p PARAMS ((rtx, int)); +extern rtx cselib_subst_to_values PARAMS ((rtx)); |