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arm.c: Add cortex-m7 tune.

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2014-10-11  Hale Wang  <Hale.Wang@arm.com>

	* config/arm/arm.c: Add cortex-m7 tune.
	* config/arm/arm-cores.def: Use cortex-m7 tune.

From-SVN: r217173
This commit is contained in:
Hale Wang 2014-11-06 05:38:45 +00:00 committed by Hale Wang
parent 9b591dd19f
commit 3ff9b352df
3 changed files with 27 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-10-11 Hale Wang <Hale.Wang@arm.com>
* config/arm/arm.c: Add cortex-m7 tune.
* config/arm/arm-cores.def: Use cortex-m7 tune.
2014-11-05 Uros Bizjak <ubizjak@gmail.com>
PR target/63538

2
gcc/config/arm/arm-cores.def
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@ -149,7 +149,7 @@ ARM_CORE("cortex-r4", cortexr4, cortexr4, 7R, FL_LDSCHED, cortex)
ARM_CORE("cortex-r4f", cortexr4f, cortexr4f, 7R, FL_LDSCHED, cortex)
ARM_CORE("cortex-r5", cortexr5, cortexr5, 7R, FL_LDSCHED | FL_ARM_DIV, cortex)
ARM_CORE("cortex-r7", cortexr7, cortexr7, 7R, FL_LDSCHED | FL_ARM_DIV, cortex)
ARM_CORE("cortex-m7", cortexm7, cortexm7, 7EM, FL_LDSCHED, v7m)
ARM_CORE("cortex-m7", cortexm7, cortexm7, 7EM, FL_LDSCHED, cortex_m7)
ARM_CORE("cortex-m4", cortexm4, cortexm4, 7EM, FL_LDSCHED, v7m)
ARM_CORE("cortex-m3", cortexm3, cortexm3, 7M, FL_LDSCHED, v7m)
ARM_CORE("marvell-pj4", marvell_pj4, marvell_pj4, 7A, FL_LDSCHED, 9e)

21
gcc/config/arm/arm.c
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@ -2022,6 +2022,27 @@ const struct tune_params arm_v7m_tune =
8 /* Maximum insns to inline memset. */
};
/* Cortex-M7 tuning. */
const struct tune_params arm_cortex_m7_tune =
{
arm_9e_rtx_costs,
&v7m_extra_costs,
NULL, /* Sched adj cost. */
0, /* Constant limit. */
0, /* Max cond insns. */
ARM_PREFETCH_NOT_BENEFICIAL,
true, /* Prefer constant pool. */
arm_cortex_m_branch_cost,
false, /* Prefer LDRD/STRD. */
{true, true}, /* Prefer non short circuit. */
&arm_default_vec_cost, /* Vectorizer costs. */
false, /* Prefer Neon for 64-bits bitops. */
false, false, /* Prefer 32-bit encodings. */
false, /* Prefer Neon for stringops. */
8 /* Maximum insns to inline memset. */
};
/* The arm_v6m_tune is duplicated from arm_cortex_tune, rather than
arm_v6t2_tune. It is used for cortex-m0, cortex-m1 and cortex-m0plus. */
const struct tune_params arm_v6m_tune =