ae0d2c2402
Add the new CDNA register file. We don't support any of the specialized instructions that use these registers, but they're useful to relieve register pressure without spilling to stack. Co-authored-by: Andrew Jenner <andrew@codesourcery.com> gcc/ChangeLog: * config/gcn/constraints.md: Add "a" AVGPR constraint. * config/gcn/gcn-valu.md (*mov<mode>): Add AVGPR alternatives. (*mov<mode>_4reg): Likewise. (@mov<mode>_sgprbase): Likewise. (gather<mode>_insn_1offset<exec>): Likewise. (gather<mode>_insn_1offset_ds<exec>): Likewise. (gather<mode>_insn_2offsets<exec>): Likewise. (scatter<mode>_expr<exec_scatter>): Likewise. (scatter<mode>_insn_1offset_ds<exec_scatter>): Likewise. (scatter<mode>_insn_2offsets<exec_scatter>): Likewise. * config/gcn/gcn.cc (MAX_NORMAL_AVGPR_COUNT): Define. (gcn_class_max_nregs): Handle AVGPR_REGS and ALL_VGPR_REGS. (gcn_hard_regno_mode_ok): Likewise. (gcn_regno_reg_class): Likewise. (gcn_spill_class): Allow spilling to AVGPRs on TARGET_CDNA1_PLUS. (gcn_sgpr_move_p): Handle AVGPRs. (gcn_secondary_reload): Reload AVGPRs via VGPRs. (gcn_conditional_register_usage): Handle AVGPRs. (gcn_vgpr_equivalent_register_operand): New function. (gcn_valid_move_p): Check for validity of AVGPR moves. (gcn_compute_frame_offsets): Handle AVGPRs. (gcn_memory_move_cost): Likewise. (gcn_register_move_cost): Likewise. (gcn_vmem_insn_p): Handle TYPE_VOP3P_MAI. (gcn_md_reorg): Handle AVGPRs. (gcn_hsa_declare_function_name): Likewise. (print_reg): Likewise. (gcn_dwarf_register_number): Likewise. * config/gcn/gcn.h (FIRST_AVGPR_REG): Define. (AVGPR_REGNO): Define. (LAST_AVGPR_REG): Define. (SOFT_ARG_REG): Update. (FRAME_POINTER_REGNUM): Update. (DWARF_LINK_REGISTER): Update. (FIRST_PSEUDO_REGISTER): Update. (AVGPR_REGNO_P): Define. (enum reg_class): Add AVGPR_REGS and ALL_VGPR_REGS. (REG_CLASS_CONTENTS): Add new register classes and add entries for AVGPRs to all classes. (REGISTER_NAMES): Add AVGPRs. * config/gcn/gcn.md (FIRST_AVGPR_REG, LAST_AVGPR_REG): Define. (AP_REGNUM, FP_REGNUM): Update. (define_attr "type"): Add vop3p_mai. (define_attr "unit"): Handle vop3p_mai. (define_attr "gcn_version"): Add "cdna2". (define_attr "enabled"): Handle cdna2. (*mov<mode>_insn): Add AVGPR alternatives. (*movti_insn): Likewise. * config/gcn/mkoffload.cc (isa_has_combined_avgprs): New. (process_asm): Process avgpr_count. * config/gcn/predicates.md (gcn_avgpr_register_operand): New. (gcn_avgpr_hard_register_operand): New. * doc/md.texi: Document the "a" constraint. gcc/testsuite/ChangeLog: * gcc.target/gcn/avgpr-mem-double.c: New test. * gcc.target/gcn/avgpr-mem-int.c: New test. * gcc.target/gcn/avgpr-mem-long.c: New test. * gcc.target/gcn/avgpr-mem-short.c: New test. * gcc.target/gcn/avgpr-spill-double.c: New test. * gcc.target/gcn/avgpr-spill-int.c: New test. * gcc.target/gcn/avgpr-spill-long.c: New test. * gcc.target/gcn/avgpr-spill-short.c: New test. libgomp/ChangeLog: * plugin/plugin-gcn.c (max_isa_vgprs): New. (run_kernel): CDNA2 devices have more VGPRs. |
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| .github | ||
| c++tools | ||
| config | ||
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| fixincludes | ||
| gcc | ||
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| ltversion.m4 | ||
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| MAINTAINERS | ||
| Makefile.def | ||
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