From: Richard Sandiford <richard.sandiford@arm.com>
To: gcc-patches@gcc.gnu.org
Subject: [14/32] Remove global call sets: DF (entry/exit defs)
Date: Wed, 11 Sep 2019 19:10:00 -0000 [thread overview]
Message-ID: <mpttv9iwswu.fsf@arm.com> (raw)
In-Reply-To: <mptimpyzmf1.fsf@arm.com> (Richard Sandiford's message of "Wed, 11 Sep 2019 20:02:26 +0100")
The code patched here is seeing whether the current function
needs to save at least part of a register before using it.
2019-09-11 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* df-scan.c (df_get_entry_block_def_set): Use crtl->abi to test
whether the current function needs to save at least part of a
register before using it.
(df_get_exit_block_use_set): Likewise for epilogue restores.
Index: gcc/df-scan.c
===================================================================
--- gcc/df-scan.c 2019-09-11 19:48:07.405959747 +0100
+++ gcc/df-scan.c 2019-09-11 19:48:11.009934354 +0100
@@ -3499,7 +3499,9 @@ df_get_entry_block_def_set (bitmap entry
/* Defs for the callee saved registers are inserted so that the
pushes have some defining location. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
- if ((call_used_or_fixed_reg_p (i) == 0) && (df_regs_ever_live_p (i)))
+ if (!crtl->abi->clobbers_full_reg_p (i)
+ && !fixed_regs[i]
+ && df_regs_ever_live_p (i))
bitmap_set_bit (entry_block_defs, i);
}
@@ -3672,8 +3674,9 @@ df_get_exit_block_use_set (bitmap exit_b
{
/* Mark all call-saved registers that we actually used. */
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
- if (df_regs_ever_live_p (i) && !LOCAL_REGNO (i)
- && !TEST_HARD_REG_BIT (regs_invalidated_by_call, i))
+ if (df_regs_ever_live_p (i)
+ && !LOCAL_REGNO (i)
+ && !crtl->abi->clobbers_full_reg_p (i))
bitmap_set_bit (exit_block_uses, i);
}
next prev parent reply other threads:[~2019-09-11 19:10 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-11 19:02 [00/32] Support multiple ABIs in the same translation unit Richard Sandiford
2019-09-11 19:03 ` [02/32] Add a target hook for getting an ABI from a function type Richard Sandiford
2019-09-29 20:52 ` Jeff Law
2019-09-11 19:03 ` [01/32] Add function_abi.{h,cc} Richard Sandiford
2019-09-29 20:51 ` Jeff Law
2019-09-30 9:19 ` Richard Sandiford
2019-09-30 21:16 ` Jeff Law
2019-09-11 19:04 ` [03/32] Add a function for getting the ABI of a call insn target Richard Sandiford
2019-09-25 15:38 ` Richard Sandiford
2019-09-30 15:52 ` Jeff Law
2019-09-30 16:32 ` Richard Sandiford
2019-09-30 16:46 ` Jeff Law
2019-09-11 19:05 ` [05/32] Pass an ABI identifier to hard_regno_call_part_clobbered Richard Sandiford
2019-09-29 20:58 ` Jeff Law
2019-09-11 19:05 ` [04/32] [x86] Robustify vzeroupper handling across calls Richard Sandiford
2019-09-25 15:48 ` Richard Sandiford
2019-09-25 18:11 ` Uros Bizjak
2019-10-01 10:14 ` Uros Bizjak
2019-10-08 18:17 ` Uros Bizjak
2019-09-11 19:06 ` [06/32] Pass an ABI to choose_hard_reg_mode Richard Sandiford
2019-09-29 21:00 ` Jeff Law
2019-09-11 19:07 ` [08/32] Remove global call sets: cfgcleanup.c Richard Sandiford
2019-09-29 21:02 ` Jeff Law
2019-09-11 19:07 ` [07/32] Remove global call sets: caller-save.c Richard Sandiford
2019-09-29 21:01 ` Jeff Law
2019-09-11 19:08 ` [10/32] Remove global call sets: combine.c Richard Sandiford
2019-09-12 2:18 ` Segher Boessenkool
2019-09-12 7:52 ` Richard Sandiford
2019-09-20 0:43 ` Segher Boessenkool
2019-09-25 15:52 ` Richard Sandiford
2019-09-25 16:30 ` Segher Boessenkool
2019-09-29 22:32 ` Jeff Law
2019-09-29 22:43 ` Segher Boessenkool
2019-09-11 19:08 ` [09/32] Remove global call sets: cfgloopanal.c Richard Sandiford
2019-09-29 21:02 ` Jeff Law
2019-09-11 19:09 ` [11/32] Remove global call sets: cse.c Richard Sandiford
2019-09-25 15:57 ` Richard Sandiford
2019-09-29 21:04 ` Jeff Law
2019-09-30 16:23 ` Richard Sandiford
2019-09-11 19:09 ` [12/32] Remove global call sets: cselib.c Richard Sandiford
2019-09-29 21:05 ` Jeff Law
2019-10-29 9:20 ` Martin Liška
2019-09-11 19:10 ` Richard Sandiford [this message]
2019-09-29 21:07 ` [14/32] Remove global call sets: DF (entry/exit defs) Jeff Law
2019-09-11 19:10 ` [13/32] Remove global call sets: DF (EH edges) Richard Sandiford
2019-09-29 21:07 ` Jeff Law
2019-09-11 19:11 ` [16/32] Remove global call sets: function.c Richard Sandiford
2019-09-29 21:10 ` Jeff Law
2019-09-11 19:11 ` [15/32] Remove global call sets: early-remat.c Richard Sandiford
2019-09-29 21:09 ` Jeff Law
2019-09-11 19:11 ` [17/32] Remove global call sets: gcse.c Richard Sandiford
2019-09-25 16:04 ` Richard Sandiford
2019-09-29 21:10 ` Jeff Law
2019-09-11 19:12 ` [18/32] Remove global call sets: haifa-sched.c Richard Sandiford
2019-09-29 21:11 ` Jeff Law
2019-09-11 19:12 ` [19/32] Remove global call sets: IRA Richard Sandiford
2019-09-30 15:16 ` Jeff Law
2019-09-11 19:13 ` [20/32] Remove global call sets: loop-iv.c Richard Sandiford
2019-09-29 21:20 ` Jeff Law
2019-09-11 19:14 ` [21/32] Remove global call sets: LRA Richard Sandiford
2019-09-30 15:29 ` Jeff Law
2019-10-04 18:03 ` H.J. Lu
2019-10-04 21:52 ` H.J. Lu
2019-10-05 13:33 ` Richard Sandiford
2019-09-11 19:14 ` [22/32] Remove global call sets: postreload.c Richard Sandiford
2019-09-29 21:33 ` Jeff Law
2019-09-11 19:14 ` [23/32] Remove global call sets: postreload-gcse.c Richard Sandiford
2019-09-25 16:08 ` Richard Sandiford
2019-09-29 22:22 ` Jeff Law
2019-09-11 19:15 ` [25/32] Remove global call sets: regcprop.c Richard Sandiford
2019-09-29 21:34 ` Jeff Law
2019-09-11 19:15 ` [24/32] Remove global call sets: recog.c Richard Sandiford
2019-09-29 21:33 ` Jeff Law
2019-09-11 19:16 ` [27/32] Remove global call sets: reload.c Richard Sandiford
2019-09-29 22:26 ` Jeff Law
2019-09-11 19:16 ` [26/32] Remove global call sets: regrename.c Richard Sandiford
2019-09-29 22:25 ` Jeff Law
2019-09-11 19:17 ` [29/32] Remove global call sets: sched-deps.c Richard Sandiford
2019-09-29 22:20 ` Jeff Law
2019-10-04 14:32 ` Christophe Lyon
2019-10-04 14:35 ` Richard Sandiford
2019-10-04 14:37 ` Christophe Lyon
2019-10-07 13:29 ` Christophe Lyon
2019-09-11 19:17 ` [00/32] Remove global call sets: rtlanal.c Richard Sandiford
2019-09-29 22:21 ` Jeff Law
2019-09-11 19:18 ` [31/32] Remove global call sets: shrink-wrap.c Richard Sandiford
2019-09-29 22:21 ` Jeff Law
2019-09-11 19:18 ` [30/32] Remove global call sets: sel-sched.c Richard Sandiford
2019-09-30 15:08 ` Jeff Law
2019-09-11 19:19 ` [32/32] Hide regs_invalidated_by_call etc Richard Sandiford
2019-09-29 22:22 ` Jeff Law
2019-09-12 20:42 ` [00/32] Support multiple ABIs in the same translation unit Steven Bosscher
2019-09-26 19:24 ` Dimitar Dimitrov
2019-09-27 8:58 ` Richard Sandiford
2019-10-01 2:09 ` build-failure for cris-elf with "[00/32] Support multiple ABIs in the same translation unit" Hans-Peter Nilsson
2019-10-01 7:51 ` Richard Sandiford
2019-10-01 10:58 ` Hans-Peter Nilsson
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