On Sun, Nov 8, 2015 at 4:42 PM, Michael Meissner <meiss...@linux.vnet.ibm.com> wrote: > This patch adds support for new fusion forms in ISA 3.0 (power9). In > particular, ISA 3.0 can fuse GPR loads of R0, FPR loads, GPR stores, FPR > stores, and some constant generation that ISA 2.07 (power8) could not > generate. > > I have built this patch with a bootstrap build on a power8 little endian > system. There were no regressions in the test suite. Is this patch ok to > install in the trunk once patch #1 has been installed. > > [gcc] > 2015-11-08 Michael Meissner <meiss...@linux.vnet.ibm.com> > > * config/rs6000/constraints.md (wF constraint): New constraints > for power9/toc fusion. > (wG constraint): Likewise. > > * config/rs6000/predicates.md (upper16_cint_operand): New > predicate for power9 and toc fusion. > (fpr_reg_operand): Likewise. > (toc_fusion_or_p9_reg_operand): Likewise. > (toc_fusion_mem_raw): Likewise. > (toc_fusion_mem_wrapped): Likewise. > (fusion_gpr_addis): If power9 fusion, allow fusion for a larger > address range. > (fusion_gpr_mem_combo): Delete, use fusion_addis_mem_combo_load > instead. > (fusion_addis_mem_combo_load): Add support for power9 fusion of > floating point loads, floating point stores, and gpr stores. > (fusion_addis_mem_combo_store): Likewise. > (fusion_offsettable_mem_operand): Likewise. > > * config/rs6000/rs6000-protos.h (emit_fusion_addis): Add > declarations. > (emit_fusion_load_store): Likewise. > (fusion_p9_p): Likewise. > (expand_fusion_p9_load): Likewise. > (expand_fusion_p9_store): Likewise. > (emit_fusion_p9_load): Likewise. > (emit_fusion_p9_store): Likewise. > (fusion_wrap_memory_address): Likewise. > > * config/rs6000/rs6000.c (struct rs6000_reg_addr): Add new > elements for power9 fusion. > (rs6000_debug_print_mode): Rework debug information to print more > information about fusion. > (rs6000_init_hard_regno_mode_ok): Setup for power9 fusion > support. > (rs6000_legitimate_address_p): Recognize toc fusion as a valid > offsettable memory address. > (emit_fusion_gpr_load): Move most of the code from > emit_fusion_gpr_load into emit_fusion-addis that handles both > power8 and power9 fusion. > (emit_fusion_addis): Likewise. > (emit_fusion_load_store): Likewise. > (fusion_wrap_memory_address): Add support for TOC fusion. > (fusion_split_address): Likewise. > (fusion_p9_p): Add support for power9 fusion. > (expand_fusion_p9_load): Likewise. > (expand_fusion_p9_store): Likewise. > (emit_fusion_p9_load): Likewise. > (emit_fusion_p9_store): Likewise. > > * config/rs6000/rs6000.h (TARGET_TOC_FUSION_INT): New macros for > power9 fusion support. > (TARGET_TOC_FUSION_FP): Likewise. > > * config/rs6000/rs6000.md (UNSPEC_FUSION_P9): New power9/toc > fusion unspecs. > (UNSPEC_FUSION_ADDIS): Likewise. > (QHSI mode iterator): New iterator for power9 fusion. > (GPR_FUSION): Likewise. > (FPR_FUSION): Likewise. > (power9 fusion splitter): New power9/toc fusion support. > (toc_fusionload_<mode>): Likewise. > (toc_fusionload_di): Likewise. > (fusion_gpr_load_<mode>): Update predicate function. > (power9 fusion peephole2s): New power9/toc fusion support. > (fusion_gpr_<P:mode>_<GPR_FUSION:mode>_load): Likewise. > (fusion_gpr_<P:mode>_<GPR_FUSION:mode>_store): Likewise. > (fusion_fpr_<P:mode>_<FPR_FUSION:mode>_load): Likewise. > (fusion_fpr_<P:mode>_<FPR_FUSION:mode>_store): Likewise. > (fusion_p9_<mode>_constant): Likewise. > > [gcc/testsuite] > 2015-11-08 Michael Meissner <meiss...@linux.vnet.ibm.com> > > * gcc.target/powerpc/fusion.c (fusion_vector): Move to fusion2.c > and allow the test on PowerPC LE. > * gcc.target/powerpc/fusion2.c (fusion_vector): Likewise. > > * gcc.target/powerpc/fusion3.c: New file, test power9 fusion.
Okay, with the changes that you and Segher discussed. Thanks, David