From: Robin Dapp <rdapp@linux.ibm.com>
To: gcc-patches@gcc.gnu.org, richard.sandiford@arm.com
Subject: [PATCH 7/7] s390: Increase costs for load on condition and change movqicc expander.
Date: Fri, 25 Jun 2021 18:09:05 +0200 [thread overview]
Message-ID: <20210625160905.23786-8-rdapp@linux.ibm.com> (raw)
In-Reply-To: <20210625160905.23786-1-rdapp@linux.ibm.com>
---
gcc/config/s390/s390.c | 2 +-
gcc/config/s390/s390.md | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c
index 6bbeb640e1f..e3b1f99669f 100644
--- a/gcc/config/s390/s390.c
+++ b/gcc/config/s390/s390.c
@@ -3636,7 +3636,7 @@ s390_rtx_costs (rtx x, machine_mode mode, int outer_code,
/* It is going to be a load/store on condition. Make it
slightly more expensive than a normal load. */
- *total = COSTS_N_INSNS (1) + 1;
+ *total = COSTS_N_INSNS (1) + 2;
rtx dst = SET_DEST (x);
rtx then = XEXP (SET_SRC (x), 1);
diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md
index 0c5b4dc9029..ee4fac2f9ad 100644
--- a/gcc/config/s390/s390.md
+++ b/gcc/config/s390/s390.md
@@ -7006,9 +7006,9 @@
if (!CONSTANT_P (els))
els = simplify_gen_subreg (E_SImode, els, <MODE>mode, 0);
- rtx tmp_target = gen_reg_rtx (E_SImode);
+ rtx tmp_target = simplify_gen_subreg (E_SImode, operands[0], <MODE>mode, 0);
+
emit_insn (gen_movsicc (tmp_target, operands[1], then, els));
- emit_move_insn (operands[0], gen_lowpart (<MODE>mode, tmp_target));
DONE;
})
--
2.31.1
next prev parent reply other threads:[~2021-06-25 16:09 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-25 16:08 [PATCH 0/7] ifcvt: Convert multiple Robin Dapp
2021-06-25 16:08 ` [PATCH 1/7] ifcvt: Check if cmovs are needed Robin Dapp
2021-07-15 20:10 ` Richard Sandiford
2021-07-22 12:06 ` Robin Dapp
2021-07-26 19:08 ` Richard Sandiford
2021-09-15 8:39 ` Robin Dapp
2021-10-14 8:45 ` Richard Sandiford
2021-10-14 14:20 ` Robin Dapp
2021-10-14 14:32 ` Richard Sandiford
2021-10-18 11:40 ` Robin Dapp
2021-11-03 8:55 ` Robin Dapp
2021-11-05 15:33 ` Richard Sandiford
2021-11-12 13:00 ` Robin Dapp
2021-11-30 16:36 ` Richard Sandiford
2021-06-25 16:09 ` [PATCH 2/7] ifcvt: Allow constants for noce_convert_multiple Robin Dapp
2021-07-15 20:25 ` Richard Sandiford
2021-06-25 16:09 ` [PATCH 3/7] ifcvt: Improve costs handling " Robin Dapp
2021-07-15 20:42 ` Richard Sandiford
2021-07-22 12:07 ` Robin Dapp
2021-07-26 19:10 ` Richard Sandiford
2021-06-25 16:09 ` [PATCH 4/7] ifcvt/optabs: Allow using a CC comparison for emit_conditional_move Robin Dapp
2021-07-15 20:54 ` Richard Sandiford
2021-07-22 12:07 ` Robin Dapp
2021-07-26 19:31 ` Richard Sandiford
2021-07-27 20:49 ` Robin Dapp
2021-08-06 12:14 ` Richard Sandiford
2021-06-25 16:09 ` [PATCH 5/7] ifcvt: Try re-using CC for conditional moves Robin Dapp
2021-07-22 12:12 ` Robin Dapp
2021-06-25 16:09 ` [PATCH 6/7] testsuite/s390: Add tests for noce_convert_multiple Robin Dapp
2021-06-25 16:09 ` Robin Dapp [this message]
2021-07-13 12:42 ` [PATCH 0/7] ifcvt: Convert multiple Robin Dapp
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