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