Based on Julian's http://gcc.gnu.org/ml/gcc-patches/2012-07/msg01006.html and
* Merged with latest mainline and applied test
* Only apply to Cortex-M3 and M4
* Set LOGICAL_OP_NON_SHORT_CIRCUIT to false
Test:
- Coremark on M3/M4 gained 5%
- GCC make check with qemu Cortex-M3 resulting following expected
regressions, which will be fixed by following-up condition compare patches
* gcc.target/arm/thumb2-cond-cmp-1.c: Expected fail for now.
* gcc.target/arm/thumb2-cond-cmp-2.c: Likewise.
* gcc.target/arm/thumb2-cond-cmp-3.c: Likewise.
* gcc.target/arm/thumb2-cond-cmp-4.c: Likewise.
ChangeLog:
2013-11-01 Julian Brown <jul...@codesourcery.com>
Joey Ye <joey...@arm.com>
* config/arm/arm.c (arm_cortex_m_branch_cost): New.
(arm_v7m_tune): New.
(arm_*_tune): Add comments for Sched adj cost.
* config/arm/arm-cores.def (cortex-m4, cortex-m3):
Use arm_v7m_tune tuning.
testsuite:
2013-11-01 Joey Ye <joey...@arm.com>
* gcc.dg/tree-ssa/forwprop-28.c: Disable for cortex_m.
* gcc.dg/tree-ssa/vrp47.c: Likewise.
* gcc.dg/tree-ssa/vrp87.c: Likewise.
* gcc.dg/tree-ssa/ssa-dom-thread-4.c: Ignore for cortex_m.
* gcc.dg/tree-ssa/ssa-vrp-thread-1.c: Likewise.
v7m_tune_allin1-131016.patch
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