diff options
Diffstat (limited to 'patches/gcc/6.2.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch')
-rw-r--r-- | patches/gcc/6.2.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/patches/gcc/6.2.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch b/patches/gcc/6.2.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch deleted file mode 100644 index af9fb1d..0000000 --- a/patches/gcc/6.2.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch +++ /dev/null @@ -1,69 +0,0 @@ -From 07453188b18a2cbe815917dbb893b4ebfdd793b6 Mon Sep 17 00:00:00 2001 -From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4> -Date: Fri, 26 Aug 2016 10:23:20 +0000 -Subject: [PATCH] [ARM] PR target/70473: Reduce size of Cortex-A8 automaton - - PR target/70473 - * config/arm/cortex-a8-neon.md (cortex_a8_vfp_muld): Reduce - reservation duration to 15 cycles. - (cortex_a8_vfp_macs): Likewise. - (cortex_a8_vfp_macd): Likewise. - (cortex_a8_vfp_divs): Likewise. - (cortex_a8_vfp_divd): Likewise. - -git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239772 -138bc75d-0d04-0410-961f-82ee72b054a4 - -[Backport from gcc upstream commit 79f5d5e3cd5a668d5ecb2b6b0cce80ef5706ac53.] -Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---- - gcc/config/arm/cortex-a8-neon.md | 14 +++++++++----- - 1 file changed, 9 insertions(+), 5 deletions(-) - -diff --git a/gcc/config/arm/cortex-a8-neon.md b/gcc/config/arm/cortex-a8-neon.md -index 45f861f..b16c299 100644 ---- a/gcc/config/arm/cortex-a8-neon.md -+++ b/gcc/config/arm/cortex-a8-neon.md -@@ -357,30 +357,34 @@ - (eq_attr "type" "fmuls")) - "cortex_a8_vfp,cortex_a8_vfplite*11") - -+;; Don't model a reservation for more than 15 cycles as this explodes the -+;; state space of the automaton for little gain. It is unlikely that the -+;; scheduler will find enough instructions to hide the full latency of the -+;; instructions. - (define_insn_reservation "cortex_a8_vfp_muld" 17 - (and (eq_attr "tune" "cortexa8") - (eq_attr "type" "fmuld")) -- "cortex_a8_vfp,cortex_a8_vfplite*16") -+ "cortex_a8_vfp,cortex_a8_vfplite*15") - - (define_insn_reservation "cortex_a8_vfp_macs" 21 - (and (eq_attr "tune" "cortexa8") - (eq_attr "type" "fmacs,ffmas")) -- "cortex_a8_vfp,cortex_a8_vfplite*20") -+ "cortex_a8_vfp,cortex_a8_vfplite*15") - - (define_insn_reservation "cortex_a8_vfp_macd" 26 - (and (eq_attr "tune" "cortexa8") - (eq_attr "type" "fmacd,ffmad")) -- "cortex_a8_vfp,cortex_a8_vfplite*25") -+ "cortex_a8_vfp,cortex_a8_vfplite*15") - - (define_insn_reservation "cortex_a8_vfp_divs" 37 - (and (eq_attr "tune" "cortexa8") - (eq_attr "type" "fdivs, fsqrts")) -- "cortex_a8_vfp,cortex_a8_vfplite*36") -+ "cortex_a8_vfp,cortex_a8_vfplite*15") - - (define_insn_reservation "cortex_a8_vfp_divd" 65 - (and (eq_attr "tune" "cortexa8") - (eq_attr "type" "fdivd, fsqrtd")) -- "cortex_a8_vfp,cortex_a8_vfplite*64") -+ "cortex_a8_vfp,cortex_a8_vfplite*15") - - ;; Comparisons can actually take 7 cycles sometimes instead of four, - ;; but given all the other instructions lumped into type=ffarith that --- -2.7.4 - |