tailcall: Fix up process_assignment [PR94001]

[gcc.git] / gcc / ChangeLog

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+2020-03-04  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/94001
+       * tree-tailcall.c (process_assignment): Before comparing op1 to
+       *ass_var, verify *ass_var is non-NULL.
+
+2020-03-04  Kito Cheng  <kito.cheng@sifive.com>
+
+       PR target/93995
+       * config/riscv/riscv.c (riscv_emit_float_compare): Using NE to compare
+       the result of IOR.
+
+2020-03-03  Dennis Zhang  <dennis.zhang@arm.com>
+
+       * config/arm/arm_bf16.h (vcvtah_f32_bf16, vcvth_bf16_f32): New.
+       * config/arm/arm_neon.h (vcvt_f32_bf16, vcvtq_low_f32_bf16): New.
+       (vcvtq_high_f32_bf16, vcvt_bf16_f32): New.
+       (vcvtq_low_bf16_f32, vcvtq_high_bf16_f32): New.
+       * config/arm/arm_neon_builtins.def (vbfcvt, vbfcvt_high): New entries.
+       (vbfcvtv4sf, vbfcvtv4sf_high): Likewise.
+       * config/arm/iterators.md (VBFCVT, VBFCVTM): New mode iterators.
+       (V_bf_low, V_bf_cvt_m): New mode attributes.
+       * config/arm/neon.md (neon_vbfcvtv4sf<VBFCVT:mode>): New.
+       (neon_vbfcvtv4sf_highv8bf, neon_vbfcvtsf): New.
+       (neon_vbfcvt<VBFCVT:mode>, neon_vbfcvt_highv8bf): New.
+       (neon_vbfcvtbf_cvtmode<mode>, neon_vbfcvtbf): New
+       * config/arm/unspecs.md (UNSPEC_BFCVT, UNSPEC_BFCVT_HIG): New.
+
+2020-03-03  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/93582
+       * tree-ssa-sccvn.h (vn_reference_lookup): Add mask argument.
+       * tree-ssa-sccvn.c (struct vn_walk_cb_data): Add mask and masked_result
+       members, initialize them in the constructor and if mask is non-NULL,
+       artificially push_partial_def {} for the portions of the mask that
+       contain zeros.
+       (vn_walk_cb_data::finish): If mask is non-NULL, set masked_result to
+       val and return (void *)-1.  Formatting fix.
+       (vn_reference_lookup_pieces): Adjust vn_walk_cb_data initialization.
+       Formatting fix.
+       (vn_reference_lookup): Add mask argument.  If non-NULL, don't call
+       fully_constant_vn_reference_p nor vn_reference_lookup_1 and return
+       data.mask_result.
+       (visit_nary_op): Handle BIT_AND_EXPR of a memory load and INTEGER_CST
+       mask.
+       (visit_stmt): Formatting fix.
+
 2020-03-03  Richard Biener  <rguenther@suse.de>
 
        PR tree-optimization/93946