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authorRichard Henderson <rth@gcc.gnu.org>2000-01-24 12:10:04 -0800
committerRichard Henderson <rth@gcc.gnu.org>2000-01-24 12:10:04 -0800
commit1eb8759b1bc0fd2a74ddbd83db1f01df1a35df69 (patch)
treea9f7967b844ec94122754eade0945e4f551bf9f1 /gcc/c-common.c
parentd6cde8451a650824fcf971d56978b50d949aa3a2 (diff)
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rtl.def: Add unordered fp comparisions.
* rtl.def: Add unordered fp comparisions. * tree.def: Likewise. * tree.h: Add ISO C 9x unordered fp comparision builtins. * builtins.c (expand_tree_builtin): New function. * c-typeck.c (build_function_call): Use it. (build_binary_op): Support unordered compares. * c-common.c (c_common_nodes_and_builtins): Add unordered compares. * combine.c (known_cond): Handle reverse_condition returning UNKNOWN. (reversible_comparison_p): Allow UNORDERED/ORDERED to be reversed. * cse.c (fold_rtx): Check FLOAT_MODE_P before reversing. (record_jump_equiv): Handle reverse_condition returning UNKNOWN. * jump.c (reverse_condition): Don't abort for UNLE etc, but return UNKNOWN. (swap_condition): Handle unordered compares. (thread_jumps): Check can_reverse before reversing. * loop.c (get_condition): Likewise. Allow UNORERED/ORDERED to be reversed for FP. * optabs.c (can_compare_p): New argument CODE. Verify branch or setcc is present before acking for cmp_optab. Update all callers. (prepare_float_lib_cmp, init_optabs): Handle UNORDERED. * expmed.c (do_cmp_and_jump): Update for can_compare_p. * expr.c (expand_expr): Likewise. Support unordered compares. (do_jump, do_store_flag): Likewise. * expr.h (enum libfunc_index): Add unordered compares. * Makefile.in (FPBIT_FUNCS): Add _unord_sf. (DPBIT_FUNCS): Add _unord_df. * config/fp-bit.c (_unord_f2): New. * fp-test.c (main): Try unordered compare builtins. * alpha-protos.h (alpha_fp_comparison_operator): Declare. * alpha.c (alpha_comparison_operator): Check mode properly. (alpha_swapped_comparison_operator): Likewise. (signed_comparison_operator): Likewise. (alpha_fp_comparison_operator): New. (alpha_emit_conditional_branch): Handle unordered compares. * alpha.h (PREDICATE_CODES): Update. * alpha.md (fp compares): Use alpha_fp_comparison_operator. (bunordered, bordered): New. * cp/call.c (build_over_call): Use expand_tree_builtin. * cp/typeck.c (build_function_call_real): Likewise. (build_binary_op_nodefault): Handle unordered compares. * gcc.c-torture/execute/ieee/fp-cmp-4.c: New. From-SVN: r31591
Diffstat (limited to 'gcc/c-common.c')
-rw-r--r--gcc/c-common.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c
index 0ce1ff1..6d91810 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -3710,6 +3710,20 @@ c_common_nodes_and_builtins (cplus_mode, no_builtins, no_nonansi_builtins)
builtin_function ("__builtin_trap", void_ftype, BUILT_IN_TRAP,
BUILT_IN_NORMAL, NULL_PTR);
+ /* ISO C99 IEEE Unordered compares. */
+ builtin_function ("__builtin_isgreater", default_function_type,
+ BUILT_IN_ISGREATER, BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("__builtin_isgreaterequal", default_function_type,
+ BUILT_IN_ISGREATEREQUAL, BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("__builtin_isless", default_function_type,
+ BUILT_IN_ISLESS, BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("__builtin_islessequal", default_function_type,
+ BUILT_IN_ISLESSEQUAL, BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("__builtin_islessgreater", default_function_type,
+ BUILT_IN_ISLESSGREATER, BUILT_IN_NORMAL, NULL_PTR);
+ builtin_function ("__builtin_isunordered", default_function_type,
+ BUILT_IN_ISUNORDERED, BUILT_IN_NORMAL, NULL_PTR);
+
/* Untyped call and return. */
builtin_function ("__builtin_apply_args", ptr_ftype,
BUILT_IN_APPLY_ARGS, BUILT_IN_NORMAL, NULL_PTR);