diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-22 19:22:58 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-22 19:22:58 +0000 |
| commit | 1370a57b8b28dfaa3a85e477bf8e56f0abe685c4 (patch) | |
| tree | 2e8de6d245b0c67e4c2cf64e912c841cc8338a4b /gcc/haifa-sched.c | |
| parent | dead3293929c5215fea523d0d83a188df8ba717a (diff) | |
| download | gcc-1370a57b8b28dfaa3a85e477bf8e56f0abe685c4.tar.gz | |
* haifa-sched.c (sched_analyze_1): Don't special-case calls
for clobbering registers.
(sched_analyze_2): Likewise.
(sched_analyze): Zap reg_last_uses and reg_last_sets after calls.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37668 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 01f08b5d811..cf8fe2b15b7 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -3384,11 +3384,6 @@ 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 @@ -3540,11 +3535,6 @@ 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 @@ -3987,9 +3977,11 @@ 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_ANTI); + add_dependence (insn, XEXP (u, 0), REG_DEP_OUTPUT); + free_INSN_LIST_list (&deps->reg_last_sets[i]); SET_REGNO_REG_SET (reg_pending_clobbers, i); } |