diff options
Diffstat (limited to 'gcc/config/vax/vax.md')
| -rw-r--r-- | gcc/config/vax/vax.md | 81 |
1 files changed, 47 insertions, 34 deletions
diff --git a/gcc/config/vax/vax.md b/gcc/config/vax/vax.md index da3ca48e90b..649f17e36ba 100644 --- a/gcc/config/vax/vax.md +++ b/gcc/config/vax/vax.md @@ -58,30 +58,16 @@ (include "constraints.md") (include "predicates.md") -;; We don't want to allow a constant operand for test insns because -;; (set (cc0) (const_int foo)) has no mode information. Such insns will -;; be folded while optimizing anyway. - -(define_insn "tst<mode>" - [(set (cc0) - (match_operand:VAXint 0 "nonimmediate_operand" "nrmT"))] - "" - "tst<VAXint:isfx> %0") - -(define_insn "tst<mode>" +(define_insn "*cmp<mode>" [(set (cc0) - (match_operand:VAXfp 0 "general_operand" "gF"))] + (compare (match_operand:VAXint 0 "nonimmediate_operand" "nrmT,nrmT") + (match_operand:VAXint 1 "general_operand" "I,nrmT")))] "" - "tst<VAXfp:fsfx> %0") - -(define_insn "cmp<mode>" - [(set (cc0) - (compare (match_operand:VAXint 0 "nonimmediate_operand" "nrmT") - (match_operand:VAXint 1 "general_operand" "nrmT")))] - "" - "cmp<VAXint:isfx> %0,%1") + "@ + tst<VAXint:isfx> %0 + cmp<VAXint:isfx> %0,%1") -(define_insn "cmp<mode>" +(define_insn "*cmp<mode>" [(set (cc0) (compare (match_operand:VAXfp 0 "general_operand" "gF,gF") (match_operand:VAXfp 1 "general_operand" "G,gF")))] @@ -92,8 +78,9 @@ (define_insn "*bit<mode>" [(set (cc0) - (and:VAXint (match_operand:VAXint 0 "general_operand" "nrmT") - (match_operand:VAXint 1 "general_operand" "nrmT")))] + (compare (and:VAXint (match_operand:VAXint 0 "general_operand" "nrmT") + (match_operand:VAXint 1 "general_operand" "nrmT")) + (const_int 0)))] "" "bit<VAXint:isfx> %0,%1") @@ -1078,21 +1065,45 @@ "jbr %l0") ;; Conditional jumps -(define_code_iterator any_cond [eq ne gt lt gtu ltu ge le geu leu]) -(define_insn "b<code>" +(define_expand "cbranch<mode>4" + [(set (cc0) + (compare (match_operand:VAXint 1 "nonimmediate_operand" "") + (match_operand:VAXint 2 "general_operand" ""))) + (set (pc) + (if_then_else + (match_operator 0 "ordered_comparison_operator" [(cc0) + (const_int 0)]) + (label_ref (match_operand 3 "" "")) + (pc)))] + "") + +(define_expand "cbranch<mode>4" + [(set (cc0) + (compare (match_operand:VAXfp 1 "general_operand" "") + (match_operand:VAXfp 2 "general_operand" ""))) + (set (pc) + (if_then_else + (match_operator 0 "ordered_comparison_operator" [(cc0) + (const_int 0)]) + (label_ref (match_operand 3 "" "")) + (pc)))] + "") + +(define_insn "*branch" [(set (pc) - (if_then_else (any_cond (cc0) - (const_int 0)) - (label_ref (match_operand 0 "" "")) + (if_then_else (match_operator 0 "ordered_comparison_operator" + [(cc0) + (const_int 0)]) + (label_ref (match_operand 1 "" "")) (pc)))] "" - "* return vax_output_conditional_branch (<CODE>);") + "j%c0 %l1") ;; Recognize reversed jumps. -(define_insn "" +(define_insn "*branch_reversed" [(set (pc) - (if_then_else (match_operator 0 "comparison_operator" + (if_then_else (match_operator 0 "ordered_comparison_operator" [(cc0) (const_int 0)]) (pc) @@ -1452,6 +1463,8 @@ (match_operand 4 "" "")] "" { + rtx test; + /* i = index - minimum_bound; But only if the lower bound is not already zero. */ if (operands[1] != const0_rtx) @@ -1463,9 +1476,9 @@ operands[0] = index; } - /* if (i > (maximum_bound - minimum_bound + 1) goto default; */ - emit_insn (gen_cmpsi (operands[0], operands[2])); - emit_jump_insn (gen_bgtu (operands[4])); + /* if (i > (maximum_bound - minimum_bound + 1)) goto default; */ + test = gen_rtx_fmt_ee (GTU, VOIDmode, operands[0], operands[2]); + emit_jump_insn (gen_cbranchsi4 (test, operands[0], operands[2], operands[4])); /* casesi (i, 0, table); */ emit_jump_insn (gen_casesi1 (operands[0], operands[2], operands[3])); |
