[AArch64] Revert "Improve TLS Descriptor pattern to release RTL loop IV opt"
2015-09-28 Jiong Wang <jiong.wang@arm.com> Revert: 2015-08-06 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com> Jiong Wang <jiong.wang@arm.com> * config/aarch64/aarch64.d (tlsdesc_small_pseudo_<mode>): New pattern. * config/aarch64/aarch64.h (reg_class): New enumeration FIXED_REG0. (REG_CLASS_NAMES): Likewise. (REG_CLASS_CONTENTS): Likewise. * config/aarch64/aarch64.c (aarch64_class_max_nregs): Likewise. (aarch64_register_move_cost): Likewise. (aarch64_load_symref_appropriately): Invoke the new added pattern if possible. * config/aarch64/constraints.md (Uc0): New constraint. From-SVN: r228211
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