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| author | Jeff Law <law@gcc.gnu.org> | 1996-04-12 17:49:19 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1996-04-12 17:49:19 -0600 |
| commit | 5ae5999cfe054bd1840277903b2aed4e905c2236 (patch) | |
| tree | 67b543fba936d6b6a040c26646463276725d4991 /gcc | |
| parent | f8f26adcc248a5677fe7f6f0ee4ed231f754accc (diff) | |
| download | gcc-5ae5999cfe054bd1840277903b2aed4e905c2236.zip gcc-5ae5999cfe054bd1840277903b2aed4e905c2236.tar.gz gcc-5ae5999cfe054bd1840277903b2aed4e905c2236.tar.bz2 | |
h8300.c (const_costs): -4 and 4 are cheap on the h8300h.
* h8300/h8300.c (const_costs): -4 and 4 are cheap on the h8300h.
(notice_update_cc): Remove references to "value2" field.
From-SVN: r11709
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/h8300/h8300.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c index 2d8fc53..f07d571 100644 --- a/gcc/config/h8300/h8300.c +++ b/gcc/config/h8300/h8300.c @@ -67,7 +67,6 @@ static char *names_upper_extended[] = char **h8_reg_names; /* Various operations needed by the following, indexed by CPU_TYPE. */ -/* ??? The h8/300 assembler doesn't understand pop.w (yet). */ static char *h8_push_ops[2] = {"push", "push.l"}; @@ -687,6 +686,12 @@ const_costs (r, c) case -1: case -2: return 0; + case 4: + case -4: + if (TARGET_H8300H) + return 0; + else + return 1; default: return 1; } @@ -1277,10 +1282,6 @@ notice_update_cc (body, insn) if (cc_status.value1 != 0 && reg_overlap_mentioned_p (recog_operand[0], cc_status.value1)) cc_status.value1 = 0; - /* ??? Is value2 ever set?. */ - if (cc_status.value2 != 0 - && reg_overlap_mentioned_p (recog_operand[0], cc_status.value2)) - cc_status.value2 = 0; break; case CC_SET: |