compare-elim.c (find_comparisons_in_bb): Eliminate only compares having the same mode as previous compare.
* compare-elim.c (find_comparisons_in_bb): Eliminate only compares having the same mode as previous compare. From-SVN: r184124
This commit is contained in:
Uros Bizjak
parent
83a5c149a6
commit
28f7ff45ec
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@ -1,3 +1,8 @@
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2012-02-11 Uros Bizjak <ubizjak@gmail.com>
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* compare-elim.c (find_comparisons_in_bb): Eliminate only compares
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having the same mode as previous compare.
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2012-02-10 Eric Botcazou <ebotcazou@adacore.com>
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* config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
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@ -19,9 +24,9 @@
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2012-02-10 Richard Henderson <rth@redhat.com>
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* tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
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* tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
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for GIMPLE_TRANSACTION. Tidy if's into a switch.
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* tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
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* tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
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for GIMPLE_TRANSACTION. Tidy if's into a switch.
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2012-02-10 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
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Ira Rosen <irar@il.ibm.com>
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@ -48,9 +53,8 @@
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PR middle-end/52177
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* builtins.c (fold_builtin_atomic_always_lock_free,
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expand_builtin_atomic_always_lock_free,
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fold_builtin_atomic_is_lock_free,
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expand_builtin_atomic_is_lock_free): Return and/or test
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boolean_true_node/boolean_false_node instead of
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fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
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Return and/or test boolean_true_node/boolean_false_node instead of
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integer_one_node/integer_zero_node.
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2012-02-10 Jan Hubicka <jh@suse.cz>
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@ -90,8 +94,8 @@
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2012-02-08 Magnus Granberg <zorry@gentoo.org>
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PR driver/48524
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* gcc.c (switch_matches) Support switches with separated form, -D
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and -U.
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* gcc.c (switch_matches) Support switches with separated form,
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-D and -U.
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2012-02-08 Georg-Johann Lay <avr@gjlay.de>
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@ -113,8 +117,7 @@
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PR tree-optimization/46886
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* tree-flow.h (do_while_loop_p): Declare.
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* tree-ssa-loop-ch.c (do_while_loop_p): Export.
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* tree-parloops.c (parallelize_loops): Only parallelize do-while
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loops.
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* tree-parloops.c (parallelize_loops): Only parallelize do-while loops.
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2012-02-08 Andrew MacLeod <amacleod@redhat.com>
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@ -183,7 +186,7 @@
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newline in -alias dumps.
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2012-02-07 Kai Tietz <ktietz@redhat.com>
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Dave Korn <dave.korn.cygwin@gmail.com>
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Dave Korn <dave.korn.cygwin@gmail.com>
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PR target/40068
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* config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
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@ -216,7 +219,8 @@
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(epiphany_start_function): Handle multiple interrupt arguments and/or
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forwarder_section attribute.
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* config/epiphany/epiphany.h (LIB_SPEC): Link libc again after libgloss.
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* config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
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libgloss.
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2012-02-07 Alan Modra <amodra@gmail.com>
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@ -297,13 +301,11 @@
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to vect_is_simple_use_1 and vect_is_simple_use.
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(vectorizable_live_operation): Likewise.
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* tree-vect-patterns.c (widened_name_p,
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vect_recog_vector_vector_shift_pattern, check_bool_pattern):
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Likewise.
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vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
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* tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
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vectorizable_call, vectorizable_conversion,
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vectorizable_assignment, vectorizable_shift,
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vectorizable_operation, vectorizable_store, vectorizable_load):
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Likewise.
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vectorizable_call, vectorizable_conversion, vectorizable_assignment,
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vectorizable_shift,vectorizable_operation, vectorizable_store,
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vectorizable_load): Likewise.
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(vect_is_simple_cond): Add an argument, pass it to
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vect_is_simple_use_1.
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(vectorizable_condition): Update calls to vect_is_simple_cond,
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@ -436,8 +438,7 @@
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2012-01-31 Matthew Gretton-Dann <matthew.gretton-dann@arm.com>
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config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true
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condition.
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* config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.
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2012-01-31 Jakub Jelinek <jakub@redhat.com>
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@ -537,7 +538,7 @@
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2012-01-29 Uros Bizjak <ubizjak@gmail.com>
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* config/alpha/alpha.c (alpha_option_overrride): Default to
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* config/alpha/alpha.c (alpha_option_override): Default to
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full IEEE compliance mode for Go language.
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2011-01-29 Tijl Coosemans <tijl@coosemans.org>
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@ -297,8 +297,11 @@ find_comparisons_in_bb (struct dom_walk_data *data ATTRIBUTE_UNUSED,
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src = conforming_compare (insn);
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if (src)
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{
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enum machine_mode src_mode = GET_MODE (src);
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/* Eliminate a compare that's redundant with the previous. */
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if (last_cmp_valid
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&& src_mode == last_cmp->orig_mode
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&& rtx_equal_p (last_cmp->in_a, XEXP (src, 0))
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&& rtx_equal_p (last_cmp->in_b, XEXP (src, 1)))
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{
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@ -311,7 +314,7 @@ find_comparisons_in_bb (struct dom_walk_data *data ATTRIBUTE_UNUSED,
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last_cmp->prev_clobber = last_clobber;
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last_cmp->in_a = XEXP (src, 0);
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last_cmp->in_b = XEXP (src, 1);
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last_cmp->orig_mode = GET_MODE (SET_DEST (single_set (insn)));
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last_cmp->orig_mode = src_mode;
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VEC_safe_push (comparison_struct_p, heap, all_compares, last_cmp);
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/* It's unusual, but be prepared for comparison patterns that
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