cb9badea8b
The sh4-linux-gnu port has failed to bootstrap since the introduction of late combine due to failures to split certain insns. This is caused by incorrect predicates in various define_insn_and_split patterns. Essentially the insn's predicate is something like "TARGET_SH1". The split predicate is "&& can_create_pseudos_p ()". So these patterns will match post-reload, but be un-splittable. So at assembly output time, we get the failure as the output template is "#". This patch fixes the most obvious & egregious cases by bringing the split condition into the insn's predicate and leaving "&& 1" as the split condition. That's enough to get sh4-linux-gnu bootstrapping again and I'm hoping it does the same for sh4eb-linux-gnu. Pushing to the trunk. gcc/ * config/sh/sh.md (adddi3): Only allow matching when we can still create new pseudos. (subdi3, *rotcl, *rotcr, *rotcr_neg_t, negdi2): Likewise. (abs<mode>2, negabs<mode>2, negdi_cond): Likewise. (*swapbisi2_and_shl8, *swapbhisi2, *movsi_index_disp_load): Likewise. (*movhi_index_disp_load, *mov<mode>index_disp_store): Likewise. (*mov_t_msb_neg, *negt_msb, clipu_one): Likewise. |
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