From a165f034f9475245783ff7949b28ee3134bcc21a Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 22 Nov 2000 11:22:58 -0800 Subject: [PATCH] haifa-sched.c (sched_analyze_1): Don't special-case calls for clobbering registers. * 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. From-SVN: r37668 --- gcc/ChangeLog | 19 +++++++++++++------ gcc/haifa-sched.c | 14 +++----------- 2 files changed, 16 insertions(+), 17 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d6187a58354..c8bde8c640c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,10 +1,17 @@ +2000-11-22 Richard Henderson + + * 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. + 2000-11-22 Chris Demetriou -2000-11-22 Neil Booth + Neil Booth - * gcc.c (validate_switches): Validate multiple switches named - in '|' (or) expressions in specs. - (handle_braces): If more than 1 alternative in a '|' spec - matches, call do_spec1 just once. + * gcc.c (validate_switches): Validate multiple switches named + in '|' (or) expressions in specs. + (handle_braces): If more than 1 alternative in a '|' spec + matches, call do_spec1 just once. 2000-11-22 Michael Meissner @@ -107,7 +114,7 @@ Wed Nov 22 00:52:55 2000 J"orn Rennecke 2000-11-21 Neil Booth - * do_includes: Revert to using cpp_read_file. + * do_includes: Revert to using cpp_read_file. 2000-11-21 Bernd Schmidt 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); } -- 2.30.2