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re PR target/56102 (Wrong rtx cost calculated for Thumb1) 

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.

From-SVN: r197155
This commit is contained in:
Bin Cheng 2013-03-27 08:16:54 +00:00 committed by Bin Cheng
parent a5ba7b9285
commit 78b4e425a6
2 changed files with 21 additions and 3 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2013-03-27 Bin Cheng <bin.cheng@arm.com>
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.
2013-03-27 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* config/s390/s390.h (TARGET_FLT_EVAL_METHOD): Define.

17
gcc/config/arm/arm.c
View File

@ -7116,7 +7116,7 @@ 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)
{
@ -7124,6 +7124,8 @@ 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:
@ -7147,7 +7149,10 @@ 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))));
@ -7844,6 +7849,7 @@ 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)
{
@ -7851,6 +7857,8 @@ 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:
@ -7869,7 +7877,10 @@ 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))));