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* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57329 (From OE-Core rev: 255c22994449c3d9eb34c80f0a1159ad6714347e) Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
84 lines
2.6 KiB
Diff
84 lines
2.6 KiB
Diff
From fa049b3584a1cc36c250205e3d5841e6a40ff677 Mon Sep 17 00:00:00 2001
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From: amker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
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Date: Wed, 27 Mar 2013 08:16:54 +0000
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Subject: [PATCH] PR target/56102
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* config/arm/arm.c (thumb1_rtx_costs, thumb1_size_rtx_costs): Fix rtx costs for SET/ASHIFT/ASHIFTRT/LSHIFTRT/ROTATERT patterns with mult-word mode.
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@197155 138bc75d-0d04-0410-961f-82ee72b054a4
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Upstream-Status: Backport
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57329
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Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
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---
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gcc/config/arm/arm.c | 17 ++++++++++++++---
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1 file changed, 14 insertions(+), 3 deletions(-)
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diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
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index 460d333..edf850d 100644
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--- a/gcc/config/arm/arm.c
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+++ b/gcc/config/arm/arm.c
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@@ -7094,7 +7094,7 @@ static inline int
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thumb1_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer)
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{
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enum machine_mode mode = GET_MODE (x);
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- int total;
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+ int total, words;
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switch (code)
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{
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@@ -7102,6 +7102,8 @@ thumb1_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer)
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case ASHIFTRT:
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case LSHIFTRT:
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case ROTATERT:
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+ return (mode == SImode) ? COSTS_N_INSNS (1) : COSTS_N_INSNS (2);
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+
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case PLUS:
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case MINUS:
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case COMPARE:
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@@ -7125,7 +7127,10 @@ thumb1_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer)
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return COSTS_N_INSNS (1) + 16;
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case SET:
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- return (COSTS_N_INSNS (1)
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+ /* A SET doesn't have a mode, so let's look at the SET_DEST to get
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+ the mode. */
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+ words = ARM_NUM_INTS (GET_MODE_SIZE (GET_MODE (SET_DEST (x))));
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+ return (COSTS_N_INSNS (words)
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+ 4 * ((MEM_P (SET_SRC (x)))
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+ MEM_P (SET_DEST (x))));
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@@ -7822,6 +7827,7 @@ static inline int
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thumb1_size_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer)
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{
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enum machine_mode mode = GET_MODE (x);
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+ int words;
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switch (code)
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{
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@@ -7829,6 +7835,8 @@ thumb1_size_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer)
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case ASHIFTRT:
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case LSHIFTRT:
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case ROTATERT:
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+ return (mode == SImode) ? COSTS_N_INSNS (1) : COSTS_N_INSNS (2);
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+
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case PLUS:
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case MINUS:
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case COMPARE:
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@@ -7847,7 +7855,10 @@ thumb1_size_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer)
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return COSTS_N_INSNS (1);
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case SET:
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- return (COSTS_N_INSNS (1)
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+ /* A SET doesn't have a mode, so let's look at the SET_DEST to get
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+ the mode. */
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+ words = ARM_NUM_INTS (GET_MODE_SIZE (GET_MODE (SET_DEST (x))));
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+ return (COSTS_N_INSNS (words)
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+ 4 * ((MEM_P (SET_SRC (x)))
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+ MEM_P (SET_DEST (x))));
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--
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1.8.2.1
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