(init_optabs): Use __gcc_bcmp, not real bcmp.
(expand_unop): Handle NEG for complex modes. (expand_binop): Likewise. (expand_complex_binop): New function. From-SVN: r2092
This commit is contained in:
Richard Stallman
parent
7c65f72c8e
commit
b818abb0b1
239
gcc/optabs.c
239
gcc/optabs.c
@ -180,6 +180,11 @@ rtx fixunstfsi_libfunc;
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rtx fixunstfdi_libfunc;
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rtx fixunstfti_libfunc;
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#ifdef GPC
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/* from emit-rtl.c */
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extern rtx gen_highpart();
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#endif
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/* Indexed by the rtx-code for a conditional (eg. EQ, LT,...)
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gives the gen_function to make a branch to test that condition. */
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@ -824,6 +829,228 @@ expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods)
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delete_insns_since (last);
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}
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#ifdef GPC
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/* We need to open-code the complex type operations: '+, -, * and /' */
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/* At this point we allow operations between two similar complex
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numbers, and also if one of the operands is not a complex number
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but rather of MODE_FLOAT or MODE_INT. However, the caller
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must make sure that the MODE of the non-complex operand matches
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the SUBMODE of the complex operand.
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@@ Perhaps the conversion to complex numbers should be somewhere else.
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@@ This is not tested very much.
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*/
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if (class == MODE_COMPLEX_FLOAT || class == MODE_COMPLEX_INT)
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{ rtx real0 = (rtx) 0;
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rtx imag0 = (rtx) 0;
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rtx real1 = (rtx) 0;
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rtx imag1 = (rtx) 0;
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rtx realr;
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rtx imagr;
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rtx res;
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rtx seq;
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rtx equiv_value;
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/* Find the correct mode for the real and imaginary parts */
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enum machine_mode submode =
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mode_for_size (GET_MODE_UNIT_SIZE (mode) * BITS_PER_UNIT,
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class == MODE_COMPLEX_INT ? MODE_INT : MODE_FLOAT,
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0);
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if (submode == BLKmode)
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abort ();
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if (! target)
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target = gen_reg_rtx (mode);
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start_sequence ();
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realr = gen_lowpart (submode, target);
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imagr = gen_highpart (submode, target);
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if (GET_MODE (op0) == mode)
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{
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real0 = gen_lowpart (submode, op0);
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imag0 = gen_highpart (submode, op0);
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}
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else
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real0 = op0;
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if (GET_MODE (op1) == mode)
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{
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real1 = gen_lowpart (submode, op1);
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imag1 = gen_highpart (submode, op1);
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}
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else
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real1 = op1;
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if (! real0 || ! real1 || ! (imag0 || imag1))
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abort ();
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switch (binoptab->code) {
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case PLUS:
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case MINUS:
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res = expand_binop (submode, binoptab, real0, real1,
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realr, unsignedp, methods);
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if (res != realr)
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emit_move_insn (realr, res);
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if (imag0 && imag1)
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res = expand_binop (submode, binoptab, imag0, imag1,
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imagr, unsignedp, methods);
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else if (imag0)
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res = imag0;
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else if (binoptab->code == MINUS)
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res = expand_unop (submode, neg_optab, imag1, imagr, unsignedp);
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else
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res = imag1;
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if (res != imagr)
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emit_move_insn (imagr, res);
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break;
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case MULT:
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/* (a+ib) * (c+id) = (ac-bd) + i(ad+cb) */
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res = expand_binop (submode, binoptab, real0, real1,
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realr, unsignedp, methods);
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if (imag0 && imag1)
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{
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rtx temp =
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expand_binop (submode, sub_optab, res,
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expand_binop (submode, binoptab, imag0, imag1,
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0, unsignedp, methods),
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realr, unsignedp, methods);
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if (temp != realr)
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emit_move_insn (realr, temp);
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res = expand_binop (submode, add_optab,
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expand_binop (submode, binoptab,
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real0, imag1,
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0, unsignedp, methods),
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expand_binop (submode, binoptab,
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real1, imag0,
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0, unsignedp, methods),
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imagr, unsignedp, methods);
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if (res != imagr)
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emit_move_insn (imagr, res);
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}
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else
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{
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if (res != realr)
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emit_move_insn (realr, res);
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if (imag0)
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res = expand_binop (submode, binoptab,
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real1, imag0, imagr, unsignedp, methods);
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else
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res = expand_binop (submode, binoptab,
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real0, imag1, imagr, unsignedp, methods);
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if (res != imagr)
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emit_move_insn (imagr, res);
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}
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break;
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case DIV:
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/* (c+id)/(a+ib) == ((c+id)*(a-ib))/(a*a+b*b) */
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if (! imag1)
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{ /* Simply divide the real and imaginary parts by `a' */
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res = expand_binop (submode, binoptab, real0, real1,
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realr, unsignedp, methods);
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if (res != realr)
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emit_move_insn (realr, res);
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res = expand_binop (submode, binoptab, imag0, real1,
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imagr, unsignedp, methods);
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if (res != imagr)
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emit_move_insn (imagr, res);
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}
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else /* Divider is of complex type */
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{ /* X/(a+ib) */
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rtx divider;
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rtx real_t;
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rtx imag_t;
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optab mulopt = unsignedp ? umul_widen_optab : smul_optab;
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/* Divider: a*a + b*b */
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divider = expand_binop (submode, add_optab,
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expand_binop (submode, mulopt,
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real1, real1,
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0, unsignedp, methods),
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expand_binop (submode, mulopt,
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imag1, imag1,
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0, unsignedp, methods),
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0, unsignedp, methods);
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if (! imag0) /* ((c)(a-ib))/divider */
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{
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/* Calculate the divident */
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real_t = expand_binop (submode, mulopt, real0, real1,
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0, unsignedp, methods);
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imag_t =
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expand_unop (submode, neg_optab,
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expand_binop (submode, mulopt, real0, imag1,
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0, unsignedp, methods),
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0, unsignedp);
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}
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else /* ((c+id)(a-ib))/divider */
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{
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/* Calculate the divident */
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real_t = expand_binop (submode, add_optab,
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expand_binop (submode, mulopt,
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real0, real1,
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0, unsignedp, methods),
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expand_binop (submode, mulopt,
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imag0, imag1,
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0, unsignedp, methods),
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0, unsignedp, methods);
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imag_t = expand_binop (submode, sub_optab,
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expand_binop (submode, mulopt,
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real0, imag1,
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0, unsignedp, methods),
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expand_binop (submode, mulopt,
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real1, imag0,
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0, unsignedp, methods),
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0, unsignedp, methods);
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}
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res = expand_binop (submode, binoptab, real_t, divider,
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realr, unsignedp, methods);
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if (res != realr)
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emit_move_insn (realr, res);
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res = expand_binop (submode, binoptab, imag_t, divider,
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imagr, unsignedp, methods);
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if (res != imagr)
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emit_move_insn (imagr, res);
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}
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break;
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default:
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abort ();
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}
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seq = gen_sequence ();
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end_sequence ();
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if (binoptab->code != UNKNOWN)
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equiv_value = gen_rtx (binoptab->code, mode, op0, op1);
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else
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equiv_value = 0;
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emit_no_conflict_block (seq, target, op0, op1, equiv_value);
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return target;
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}
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#endif /* GPC */
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/* It can't be open-coded in this mode.
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Use a library call if one is available and caller says that's ok. */
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@ -1144,9 +1371,19 @@ expand_unop (mode, unoptab, op0, target, unsignedp)
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register rtx temp;
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rtx last = get_last_insn ();
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rtx pat;
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#ifdef GPC
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enum machine_mode submode;
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#endif
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class = GET_MODE_CLASS (mode);
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#ifdef GPC
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if (class == MODE_COMPLEX_FLOAT || class == MODE_COMPLEX_INT)
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submode = mode_for_size (GET_MODE_UNIT_SIZE (mode) * BITS_PER_UNIT,
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class == MODE_COMPLEX_INT ?
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MODE_INT : MODE_FLOAT, 0);
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#endif /* GPC */
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op0 = protect_from_queue (op0, 0);
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if (flag_force_mem)
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@ -4631,7 +4868,7 @@ init_optabs ()
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memcpy_libfunc = gen_rtx (SYMBOL_REF, Pmode, "memcpy");
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bcopy_libfunc = gen_rtx (SYMBOL_REF, Pmode, "bcopy");
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memcmp_libfunc = gen_rtx (SYMBOL_REF, Pmode, "memcmp");
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bcmp_libfunc = gen_rtx (SYMBOL_REF, Pmode, "bcmp");
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bcmp_libfunc = gen_rtx (SYMBOL_REF, Pmode, "__gcc_bcmp");
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memset_libfunc = gen_rtx (SYMBOL_REF, Pmode, "memset");
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bzero_libfunc = gen_rtx (SYMBOL_REF, Pmode, "bzero");
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