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| author | Jim Wilson <wilson@gcc.gnu.org> | 1992-09-24 22:44:06 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1992-09-24 22:44:06 -0700 |
| commit | bc78eb101e3a9e9cdd0ffc82b1d6c6dbc8c53af4 (patch) | |
| tree | af989ebd2a79101931368d409e0c50a5469f2ed2 /gcc/sched.c | |
| parent | b085d1c8f2927f04a8b00d2ef3fbc27e1455e257 (diff) | |
| download | gcc-bc78eb101e3a9e9cdd0ffc82b1d6c6dbc8c53af4.zip gcc-bc78eb101e3a9e9cdd0ffc82b1d6c6dbc8c53af4.tar.gz gcc-bc78eb101e3a9e9cdd0ffc82b1d6c6dbc8c53af4.tar.bz2 | |
(sched_analyze_2, PRE_DEC case): Call sched_analyze_2 in
addition to sched_analyze_1.
From-SVN: r2240
Diffstat (limited to 'gcc/sched.c')
| -rw-r--r-- | gcc/sched.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index e984210..be48e8e 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -1860,7 +1860,13 @@ sched_analyze_2 (x, insn) case POST_DEC: case PRE_INC: case POST_INC: - /* These read and modify the result; just consider them writes. */ + /* These both read and modify the result. We must handle them as writes + to get proper dependencies for following instructions. We must handle + them as reads to get proper dependencies from this to previous + instructions. Thus we need to pass them to both sched_analyze_1 + and sched_analyze_2. We must call sched_analyze_2 first in order + to get the proper antecedent for the read. */ + sched_analyze_2 (XEXP (x, 0), insn); sched_analyze_1 (x, insn); return; } |