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re PR target/88502 (Inline built-in asinh, acosh, atanh for -ffast-math) 

PR target/88502
	* internal-fn.def (ACOSH): New.
	(ASINH): Ditto.
	(ATANH): Ditto.
	* optabs.def (acosh_optab): New.
	(asinh_optab): Ditto.
	(atanh_optab): Ditto.
	* config/i386/i386-protos.h (ix86_emit_i387_asinh): New prototype.
	(ix86_emit_i387_acosh): Ditto.
	(ix86_emit_i387_atanh): Ditto.
	* config/i386/i386.c (ix86_emit_i387_asinh): New function.
	(ix86_emit_i387_acosh): Ditto.
	(ix86_emit_i387_atanh): Ditto.
	* config/i386/i386.md (asinhxf2): New expander.
	(asinh<mode>2):	Ditto.
	(acoshxf2): Ditto.
	(acosh<mode>2): Ditto.
	(atanhxf2): Ditto.
	(atanh<mode>2): Ditto.

From-SVN: r267204
This commit is contained in:
Uros Bizjak 2018-12-17 16:46:20 +01:00 committed by Uros Bizjak
parent 61c43d82f2
commit a81037cea6
6 changed files with 243 additions and 0 deletions
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22
gcc/ChangeLog
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@ -1,3 +1,25 @@
2018-12-17 Uros Bizjak <ubizjak@gmail.com>
PR target/88502
* internal-fn.def (ACOSH): New.
(ASINH): Ditto.
(ATANH): Ditto.
* optabs.def (acosh_optab): New.
(asinh_optab): Ditto.
(atanh_optab): Ditto.
* config/i386/i386-protos.h (ix86_emit_i387_asinh): New prototype.
(ix86_emit_i387_acosh): Ditto.
(ix86_emit_i387_atanh): Ditto.
* config/i386/i386.c (ix86_emit_i387_asinh): New function.
(ix86_emit_i387_acosh): Ditto.
(ix86_emit_i387_atanh): Ditto.
* config/i386/i386.md (asinhxf2): New expander.
(asinh<mode>2): Ditto.
(acoshxf2): Ditto.
(acosh<mode>2): Ditto.
(atanhxf2): Ditto.
(atanh<mode>2): Ditto.
2018-12-17 David Edelsohn <dje.gcc@gmail.com>
* config.gcc (powerpc-ibm-aix6.*): Delete extra_headers.

3
gcc/config/i386/i386-protos.h
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@ -170,6 +170,9 @@ extern void x86_function_profiler (FILE *, int);
extern void x86_emit_floatuns (rtx [2]);
extern void ix86_emit_fp_unordered_jump (rtx);
extern void ix86_emit_i387_asinh (rtx, rtx);
extern void ix86_emit_i387_acosh (rtx, rtx);
extern void ix86_emit_i387_atanh (rtx, rtx);
extern void ix86_emit_i387_log1p (rtx, rtx);
extern void ix86_emit_i387_round (rtx, rtx);
extern void ix86_emit_swdivsf (rtx, rtx, rtx, machine_mode);

129
gcc/config/i386/i386.c
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@ -44054,6 +44054,135 @@ ix86_emit_fp_unordered_jump (rtx label)
JUMP_LABEL (insn) = label;
}
/* Output code to perform an asinh XFmode calculation. */
void ix86_emit_i387_asinh (rtx op0, rtx op1)
{
rtx e1 = gen_reg_rtx (XFmode);
rtx e2 = gen_reg_rtx (XFmode);
rtx scratch = gen_reg_rtx (HImode);
rtx flags = gen_rtx_REG (CCNOmode, FLAGS_REG);
rtx cst1, tmp;
rtx_code_label *jump_label = gen_label_rtx ();
rtx_insn *insn;
/* e2 = sqrt (op1^2 + 1.0) + 1.0 */
emit_insn (gen_mulxf3 (e1, op1, op1));
cst1 = force_reg (XFmode, CONST1_RTX (XFmode));
emit_insn (gen_addxf3 (e2, e1, cst1));
emit_insn (gen_sqrtxf2 (e2, e2));
emit_insn (gen_addxf3 (e2, e2, cst1));
/* e1 = e1 / e2 */
emit_insn (gen_divxf3 (e1, e1, e2));
/* scratch = fxam (op1) */
emit_insn (gen_fxamxf2_i387 (scratch, op1));
/* e1 = e1 + |op1| */
emit_insn (gen_absxf2 (e2, op1));
emit_insn (gen_addxf3 (e1, e1, e2));
/* e2 = log1p (e1) */
ix86_emit_i387_log1p (e2, e1);
/* flags = signbit (op1) */
emit_insn (gen_testqi_ext_1_ccno (scratch, GEN_INT (0x02)));
/* if (flags) then e2 = -e2 */
tmp = gen_rtx_IF_THEN_ELSE (VOIDmode,
gen_rtx_EQ (VOIDmode, flags, const0_rtx),
gen_rtx_LABEL_REF (VOIDmode, jump_label),
pc_rtx);
insn = emit_jump_insn (gen_rtx_SET (pc_rtx, tmp));
predict_jump (REG_BR_PROB_BASE * 50 / 100);
JUMP_LABEL (insn) = jump_label;
emit_insn (gen_negxf2 (e2, e2));
emit_label (jump_label);
LABEL_NUSES (jump_label) = 1;
emit_move_insn (op0, e2);
}
/* Output code to perform an acosh XFmode calculation. */
void ix86_emit_i387_acosh (rtx op0, rtx op1)
{
rtx e1 = gen_reg_rtx (XFmode);
rtx e2 = gen_reg_rtx (XFmode);
rtx cst1 = force_reg (XFmode, CONST1_RTX (XFmode));
/* e2 = sqrt (op1 + 1.0) */
emit_insn (gen_addxf3 (e2, op1, cst1));
emit_insn (gen_sqrtxf2 (e2, e2));
/* e1 = sqrt (op1 - 1.0) */
emit_insn (gen_subxf3 (e1, op1, cst1));
emit_insn (gen_sqrtxf2 (e1, e1));
/* e1 = e1 * e2 */
emit_insn (gen_mulxf3 (e1, e1, e2));
/* e1 = e1 + op1 */
emit_insn (gen_addxf3 (e1, e1, op1));
/* op0 = log (e1) */
emit_insn (gen_logxf2 (op0, e1));
}
/* Output code to perform an atanh XFmode calculation. */
void ix86_emit_i387_atanh (rtx op0, rtx op1)
{
rtx e1 = gen_reg_rtx (XFmode);
rtx e2 = gen_reg_rtx (XFmode);
rtx scratch = gen_reg_rtx (HImode);
rtx flags = gen_rtx_REG (CCNOmode, FLAGS_REG);
rtx half = const_double_from_real_value (dconsthalf, XFmode);
rtx cst1, tmp;
rtx_code_label *jump_label = gen_label_rtx ();
rtx_insn *insn;
/* scratch = fxam (op1) */
emit_insn (gen_fxamxf2_i387 (scratch, op1));
/* e2 = |op1| */
emit_insn (gen_absxf2 (e2, op1));
/* e1 = -(e2 + e2) / (e2 + 1.0) */
cst1 = force_reg (XFmode, CONST1_RTX (XFmode));
emit_insn (gen_addxf3 (e1, e2, cst1));
emit_insn (gen_addxf3 (e2, e2, e2));
emit_insn (gen_negxf2 (e2, e2));
emit_insn (gen_divxf3 (e1, e2, e1));
/* e2 = log1p (e1) */
ix86_emit_i387_log1p (e2, e1);
/* flags = signbit (op1) */
emit_insn (gen_testqi_ext_1_ccno (scratch, GEN_INT (0x02)));
/* if (!flags) then e2 = -e2 */
tmp = gen_rtx_IF_THEN_ELSE (VOIDmode,
gen_rtx_NE (VOIDmode, flags, const0_rtx),
gen_rtx_LABEL_REF (VOIDmode, jump_label),
pc_rtx);
insn = emit_jump_insn (gen_rtx_SET (pc_rtx, tmp));
predict_jump (REG_BR_PROB_BASE * 50 / 100);
JUMP_LABEL (insn) = jump_label;
emit_insn (gen_negxf2 (e2, e2));
emit_label (jump_label);
LABEL_NUSES (jump_label) = 1;
/* op0 = 0.5 * e2) */
half = force_reg (XFmode, half);
emit_insn (gen_mulxf3 (op0, e2, half));
}
/* Output code to perform a log1p XFmode calculation. */
void ix86_emit_i387_log1p (rtx op0, rtx op1)

83
gcc/config/i386/i386.md
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@ -15483,6 +15483,89 @@
DONE;
})
(define_expand "asinhxf2"
[(use (match_operand:XF 0 "register_operand"))
(use (match_operand:XF 1 "register_operand"))]
"TARGET_USE_FANCY_MATH_387
&& flag_finite_math_only
&& flag_unsafe_math_optimizations"
{
ix86_emit_i387_asinh (operands[0], operands[1]);
DONE;
})
(define_expand "asinh<mode>2"
[(use (match_operand:MODEF 0 "register_operand"))
(use (match_operand:MODEF 1 "general_operand"))]
"TARGET_USE_FANCY_MATH_387
&& (!(SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)
|| TARGET_MIX_SSE_I387)
&& flag_finite_math_only
&& flag_unsafe_math_optimizations"
{
rtx op0 = gen_reg_rtx (XFmode);
rtx op1 = gen_reg_rtx (XFmode);
emit_insn (gen_extend<mode>xf2 (op1, operands[1]));
emit_insn (gen_asinhxf2 (op0, op1));
emit_insn (gen_truncxf<mode>2 (operands[0], op0));
DONE;
})
(define_expand "acoshxf2"
[(use (match_operand:XF 0 "register_operand"))
(use (match_operand:XF 1 "register_operand"))]
"TARGET_USE_FANCY_MATH_387
&& flag_unsafe_math_optimizations"
{
ix86_emit_i387_acosh (operands[0], operands[1]);
DONE;
})
(define_expand "acosh<mode>2"
[(use (match_operand:MODEF 0 "register_operand"))
(use (match_operand:MODEF 1 "general_operand"))]
"TARGET_USE_FANCY_MATH_387
&& (!(SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)
|| TARGET_MIX_SSE_I387)
&& flag_unsafe_math_optimizations"
{
rtx op0 = gen_reg_rtx (XFmode);
rtx op1 = gen_reg_rtx (XFmode);
emit_insn (gen_extend<mode>xf2 (op1, operands[1]));
emit_insn (gen_acoshxf2 (op0, op1));
emit_insn (gen_truncxf<mode>2 (operands[0], op0));
DONE;
})
(define_expand "atanhxf2"
[(use (match_operand:XF 0 "register_operand"))
(use (match_operand:XF 1 "register_operand"))]
"TARGET_USE_FANCY_MATH_387
&& flag_unsafe_math_optimizations"
{
ix86_emit_i387_atanh (operands[0], operands[1]);
DONE;
})
(define_expand "atanh<mode>2"
[(use (match_operand:MODEF 0 "register_operand"))
(use (match_operand:MODEF 1 "general_operand"))]
"TARGET_USE_FANCY_MATH_387
&& (!(SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)
|| TARGET_MIX_SSE_I387)
&& flag_unsafe_math_optimizations"
{
rtx op0 = gen_reg_rtx (XFmode);
rtx op1 = gen_reg_rtx (XFmode);
emit_insn (gen_extend<mode>xf2 (op1, operands[1]));
emit_insn (gen_atanhxf2 (op0, op1));
emit_insn (gen_truncxf<mode>2 (operands[0], op0));
DONE;
})
(define_insn "fyl2xxf3_i387"
[(set (match_operand:XF 0 "register_operand" "=f")
(unspec:XF [(match_operand:XF 1 "register_operand" "0")

3
gcc/internal-fn.def
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@ -201,8 +201,11 @@ DEF_INTERNAL_OPTAB_FN (FOLD_LEFT_PLUS, ECF_CONST | ECF_NOTHROW,
/* Unary math functions. */
DEF_INTERNAL_FLT_FN (ACOS, ECF_CONST, acos, unary)
DEF_INTERNAL_FLT_FN (ACOSH, ECF_CONST, acosh, unary)
DEF_INTERNAL_FLT_FN (ASIN, ECF_CONST, asin, unary)
DEF_INTERNAL_FLT_FN (ASINH, ECF_CONST, asinh, unary)
DEF_INTERNAL_FLT_FN (ATAN, ECF_CONST, atan, unary)
DEF_INTERNAL_FLT_FN (ATANH, ECF_CONST, atanh, unary)
DEF_INTERNAL_FLT_FN (COS, ECF_CONST, cos, unary)
DEF_INTERNAL_FLT_FN (EXP, ECF_CONST, exp, unary)
DEF_INTERNAL_FLT_FN (EXP10, ECF_CONST, exp10, unary)

3
gcc/optabs.def
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@ -273,9 +273,12 @@ OPTAB_D (btrunc_optab, "btrunc$a2")
OPTAB_D (nearbyint_optab, "nearbyint$a2")
OPTAB_D (acos_optab, "acos$a2")
OPTAB_D (acosh_optab, "acosh$a2")
OPTAB_D (asin_optab, "asin$a2")
OPTAB_D (asinh_optab, "asinh$a2")
OPTAB_D (atan2_optab, "atan2$a3")
OPTAB_D (atan_optab, "atan$a2")
OPTAB_D (atanh_optab, "atanh$a2")
OPTAB_D (copysign_optab, "copysign$F$a3")
OPTAB_D (xorsign_optab, "xorsign$F$a3")
OPTAB_D (cos_optab, "cos$a2")