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Diffstat (limited to 'gcc/ChangeLog.meissner')
| -rw-r--r-- | gcc/ChangeLog.meissner | 43 |
1 files changed, 35 insertions, 8 deletions
diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner index a7315b29c82..d05d9d145f1 100644 --- a/gcc/ChangeLog.meissner +++ b/gcc/ChangeLog.meissner @@ -1,12 +1,39 @@ -2018-11-30 Michael Meissner <meissner@linux.ibm.com> +2018-12-06 Michael Meissner <meissner@linux.ibm.com> - * config/rs6000/rs6000.c (rs6000_rtx_costs): The new HACK insn has - cost 1. - (rs6000_force_indexed_or_indirect_mem): Push constant offset to a - hack insn that makes the offsets optimizable. - * config/rs6000/rs6000.md (UNSPEC_HACK): New unspec. - (hack<mode>2): New insn to allow integer constants for offsets to - be optimized. + * config.gcc (powerpc*-*-*, rs6000*-*-*): Add rs6000-xform.o. + * config/rs6000/predicates.md (reg_or_indexed_operand): Before + register allocation, allow any memory operation unless we are not + running the optimize xform pass. + * config/rs6000/rs6000-passes.def: Add xform optimization. + * config/rs6000/rs6000-protos.h (make_pass_optimize_xform): Add + declaration. + * config/rs6000/rs6000-xform.c: New target pass to optimize x-form + addresses. + * config/rs6000/rs6000.c (rs6000_opt_masks): Add -moptimize-xform. + (rs6000_force_indexed_or_indirect_mem): Only push signed 16-bit + constants, and set REG_EQUAL note. + * config/rs6000/rs6000.md (xform_memory attribute): New + attribute. + (lfiwax): Set the xform_memory attribute. + (floatsi<mode>2_lfiwax): If the optimize xform pass is enabled, + don't call rs6000_force_indexed_or_indirect_mem. Set the + xform_memory attribute. + (floatsi<mode>2_lfiwax_mem): Set the xform_memory attribute. + (lfiwzx): Likewise. + (floatunssi<mode>2_lfiwzx): If the optimize xform pass is enabled, + don't call rs6000_force_indexed_or_indirect_mem. Set the + xform_memory attribute. + (floatunssi<mode>2_lfiwzx_mem): Set the xform_memory attribute. + (floatuns<QHI:mode><FP_ISA3:mode>2_internal): Likewise. + (fix_trunc<mode>si2_stfiwx): If the optimize xform pass is + enabled, don't call rs6000_force_indexed_or_indirect_mem. Set the + xform_memory attribute. + (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): Set the xform_memory + attribute. + (float_<mode>si2_hw): Set the xform_memory attribute. + (floatuns_<mode>si2_hw): Set the xform_memory attribute. + * config/rs6000/rs6000.opt (-moptimize-xform): New debug switch. + * config/rs6000/t-rs6000: Build rs6000-xform.o. 2018-11-30 Michael Meissner <meissner@linux.ibm.com> |