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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-25 18:54:33 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-25 18:54:33 +0000 |
| commit | 67c9541c399639cca897da58bfef1882c429e529 (patch) | |
| tree | 20c5d44c3811b744f3123b532991006530c7ad14 /gcc/haifa-sched.c | |
| parent | c765e37bd6ad5981acc57595a9d8851307874ff2 (diff) | |
| download | gcc-67c9541c399639cca897da58bfef1882c429e529.tar.gz | |
* haifa-sched.c (sched_analyze_1, sched_analyze_2, sched_analyze):
Revert 2000-11-22 change.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37741 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 6ad7441f9e7..477eec3f792 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -3405,6 +3405,11 @@ sched_analyze_1 (deps, x, insn) } else SET_REGNO_REG_SET (reg_pending_clobbers, r); + + /* Function calls clobber all call_used regs. */ + if (global_regs[r] || (code == SET && call_used_regs[r])) + for (u = deps->last_function_call; u; u = XEXP (u, 1)) + add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI); } } else @@ -3556,6 +3561,11 @@ sched_analyze_2 (deps, x, insn) /* ??? This should never happen. */ for (u = deps->reg_last_clobbers[r]; u; u = XEXP (u, 1)) add_dependence (insn, XEXP (u, 0), 0); + + if (call_used_regs[r] || global_regs[r]) + /* Function calls clobber all call_used regs. */ + for (u = deps->last_function_call; u; u = XEXP (u, 1)) + add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI); } } else @@ -3998,11 +4008,9 @@ sched_analyze (deps, head, tail) { for (u = deps->reg_last_uses[i]; u; u = XEXP (u, 1)) add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI); - free_INSN_LIST_list (&deps->reg_last_uses[i]); for (u = deps->reg_last_sets[i]; u; u = XEXP (u, 1)) - add_dependence (insn, XEXP (u, 0), REG_DEP_OUTPUT); - free_INSN_LIST_list (&deps->reg_last_sets[i]); + add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI); SET_REGNO_REG_SET (reg_pending_clobbers, i); } |