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| author | Jakub Jelinek <jakub@redhat.com> | 1999-12-09 15:38:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@gcc.gnu.org> | 1999-12-09 06:38:11 -0800 |
| commit | 47841d1be3e21d53cf85ba05acc1e2cc2e9c6069 (patch) | |
| tree | 24ab43e7fa369ef323ae171d9015042732db7ad0 /gcc/cse.c | |
| parent | 1684f87473ac7c8a749e7a4b83b84549c1678601 (diff) | |
| download | gcc-47841d1be3e21d53cf85ba05acc1e2cc2e9c6069.tar.gz | |
sparc.h (PROMOTE_FOR_CALL_ONLY): Define.
* config/sparc/sparc.h (PROMOTE_FOR_CALL_ONLY): Define.
* calls.c (precompute_arguments): Make sure initial_value contains
value pseudo which CSE expects.
* cse.c (struct set): New entry orig_src.
(cse_insn): Set it early on entry, use it for libcall EQUIV note
replacement.
From-SVN: r30846
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/gcc/cse.c b/gcc/cse.c index 86797087aea..bc9e7b66ae6 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -4426,6 +4426,8 @@ struct set enum machine_mode mode; /* A constant equivalent for SET_SRC, if any. */ rtx src_const; + /* Original SET_SRC value used for libcall notes. */ + rtx orig_src; /* Hash value of constant equivalent for SET_SRC. */ unsigned src_const_hash; /* Table entry for constant equivalent for SET_SRC, if any. */ @@ -4624,6 +4626,7 @@ cse_insn (insn, libcall_insn) rtx new = canon_reg (src, insn); int insn_code; + sets[i].orig_src = src; if ((GET_CODE (new) == REG && GET_CODE (src) == REG && ((REGNO (new) < FIRST_PSEUDO_REGISTER) != (REGNO (src) < FIRST_PSEUDO_REGISTER))) @@ -5123,7 +5126,7 @@ cse_insn (insn, libcall_insn) the current contents will be tested and will always be valid. */ while (1) { - rtx trial, old_src; + rtx trial; /* Skip invalid entries. */ while (elt && GET_CODE (elt->exp) != REG @@ -5189,10 +5192,6 @@ cse_insn (insn, libcall_insn) insert the substitution here and we will delete and re-emit the insn later. */ - /* Keep track of the original SET_SRC so that we can fix notes - on libcall instructions. */ - old_src = SET_SRC (sets[i].rtl); - if (n_sets == 1 && dest == pc_rtx && (trial == pc_rtx || (GET_CODE (trial) == LABEL_REF @@ -5221,10 +5220,10 @@ cse_insn (insn, libcall_insn) need to make the same substitution in any notes attached to the RETVAL insn. */ if (libcall_insn - && (GET_CODE (old_src) == REG - || GET_CODE (old_src) == SUBREG - || GET_CODE (old_src) == MEM)) - replace_rtx (REG_NOTES (libcall_insn), old_src, + && (GET_CODE (sets[i].orig_src) == REG + || GET_CODE (sets[i].orig_src) == SUBREG + || GET_CODE (sets[i].orig_src) == MEM)) + replace_rtx (REG_NOTES (libcall_insn), sets[i].orig_src, canon_reg (SET_SRC (sets[i].rtl), insn)); /* The result of apply_change_group can be ignored; see |