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re PR testsuite/40491 (Revision 148663 caused extra failures) 

* optabs.h (enum optab_index): Add new OTI_significand.
	(significand_optab): Define corresponding macro.
	* optabs.c (init_optabs): Initialize significand_optab.
	* genopinit.c (optabs): Implement significand_optab using
	significand?f2 patterns.
	* builtins.c (expand_builtin_mathfn): Handle
	BUILT_IN_SIGNIFICAND{,F,L}.
	(expand_builtin): Expand BUILT_IN_SIGNIFICAND{,F,L} using
	expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

	* config/i386/i386.md (significandxf2, significand<mode>2): New
	expanders to implement significandf, significand and significandl
	built-ins as inline x87 intrinsics.

testsuite/ChangeLog:

	* gcc.dg/builtins-34.c: Add significand cases.

	PR testsuite/40491
	* testsuite/gcc.dg/20080522-1.c: Remove testcase for real.
	* testsuite/gcc.dg/20080528-1.c: Ditto.

From-SVN: r148705
This commit is contained in:
Uros Bizjak 2009-06-19 16:22:16 +02:00
parent 4646d048e4
commit dc6707b847
10 changed files with 84 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
gcc/ChangeLog
View File

@ -1,3 +1,19 @@
2009-06-19 Uros Bizjak <ubizjak@gmail.com>
* optabs.h (enum optab_index): Add new OTI_significand.
(significand_optab): Define corresponding macro.
* optabs.c (init_optabs): Initialize significand_optab.
* genopinit.c (optabs): Implement significand_optab using
significand?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle
BUILT_IN_SIGNIFICAND{,F,L}.
(expand_builtin): Expand BUILT_IN_SIGNIFICAND{,F,L} using
expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* config/i386/i386.md (significandxf2, significand<mode>2): New
expanders to implement significandf, significand and significandl
built-ins as inline x87 intrinsics.
2009-06-18 Anatoly Sokolov <aesok@post.ru>
* config/avr/avr.c (avr_override_options): Remove setting value of
@ -42,8 +58,6 @@
* timevar.def (TV_SEE): Remove.
* tree-pass.h (pass_see): Remove declaration.
* doc/invoke.texi (-fsee): Remove documentation.
* testsuite/gcc.dg/20080522-1.c: Remove testcase.
* testsuite/gcc.dg/20080528-1.c: Remove testcase.
2009-06-18 Martin Jambor <mjambor@suse.cz>
@ -1763,8 +1777,8 @@
* config/rs6000/crtsavgpr.asm: Likewise.
* config/rs6000/crtsavfpr.asm: Likewise.
* dwarf2out.c (output_cfi_directive): Pass 1 instead of
0 to second argument of DWARF2_FRAME_REG_OUT macros.
* dwarf2out.c (output_cfi_directive): Pass 1 instead of 0 to second
argument of DWARF2_FRAME_REG_OUT macros.
2009-06-03 Julian Brown <julian@codesourcery.com>

3
gcc/builtins.c
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@ -1975,6 +1975,8 @@ expand_builtin_mathfn (tree exp, rtx target, rtx subtarget)
/* Else fallthrough and expand as rint. */
CASE_FLT_FN (BUILT_IN_RINT):
builtin_optab = rint_optab; break;
CASE_FLT_FN (BUILT_IN_SIGNIFICAND):
builtin_optab = significand_optab; break;
default:
gcc_unreachable ();
}
@ -6332,6 +6334,7 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
CASE_FLT_FN (BUILT_IN_ASIN):
CASE_FLT_FN (BUILT_IN_ACOS):
CASE_FLT_FN (BUILT_IN_ATAN):
CASE_FLT_FN (BUILT_IN_SIGNIFICAND):
/* Treat these like sqrt only if unsafe math optimizations are allowed,
because of possible accuracy problems. */
if (! flag_unsafe_math_optimizations)

30
gcc/config/i386/i386.md
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@ -18531,7 +18531,7 @@
(define_expand "scalb<mode>3"
[(use (match_operand:MODEF 0 "register_operand" ""))
(use (match_operand:MODEF 1 "general_operand" ""))
(use (match_operand:MODEF 2 "register_operand" ""))]
(use (match_operand:MODEF 2 "general_operand" ""))]
"TARGET_USE_FANCY_MATH_387
&& (!(SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)
|| TARGET_MIX_SSE_I387)
@ -18552,6 +18552,34 @@
emit_insn (gen_truncxf<mode>2_i387_noop (operands[0], op0));
DONE;
})
(define_expand "significandxf2"
[(parallel [(set (match_operand:XF 0 "register_operand" "")
(unspec:XF [(match_operand:XF 1 "register_operand" "")]
UNSPEC_XTRACT_FRACT))
(set (match_dup 2)
(unspec:XF [(match_dup 1)] UNSPEC_XTRACT_EXP))])]
"TARGET_USE_FANCY_MATH_387
&& flag_unsafe_math_optimizations"
{
operands[2] = gen_reg_rtx (XFmode);
})
(define_expand "significand<mode>2"
[(use (match_operand:MODEF 0 "register_operand" ""))
(use (match_operand:MODEF 1 "register_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_fxtract_extend<mode>xf3_i387 (op0, op1, operands[1]));
emit_insn (gen_truncxf<mode>2_i387_noop (operands[0], op0));
DONE;
})
(define_insn "sse4_1_round<mode>2"

1
gcc/genopinit.c
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@ -178,6 +178,7 @@ static const char * const optabs[] =
"optab_handler (expm1_optab, $A)->insn_code = CODE_FOR_$(expm1$a2$)",
"optab_handler (ldexp_optab, $A)->insn_code = CODE_FOR_$(ldexp$a3$)",
"optab_handler (scalb_optab, $A)->insn_code = CODE_FOR_$(scalb$a3$)",
"optab_handler (significand_optab, $A)->insn_code = CODE_FOR_$(significand$a2$)",
"optab_handler (logb_optab, $A)->insn_code = CODE_FOR_$(logb$a2$)",
"optab_handler (ilogb_optab, $A)->insn_code = CODE_FOR_$(ilogb$a2$)",
"optab_handler (log_optab, $A)->insn_code = CODE_FOR_$(log$a2$)",

1
gcc/optabs.c
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@ -6271,6 +6271,7 @@ init_optabs (void)
init_optab (expm1_optab, UNKNOWN);
init_optab (ldexp_optab, UNKNOWN);
init_optab (scalb_optab, UNKNOWN);
init_optab (significand_optab, UNKNOWN);
init_optab (logb_optab, UNKNOWN);
init_optab (ilogb_optab, UNKNOWN);
init_optab (log_optab, UNKNOWN);

3
gcc/optabs.h
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@ -242,6 +242,8 @@ enum optab_index
OTI_ldexp,
/* Multiply floating-point number by integral power of radix */
OTI_scalb,
/* Mantissa of a floating-point number */
OTI_significand,
/* Radix-independent exponent */
OTI_logb,
OTI_ilogb,
@ -462,6 +464,7 @@ extern struct optab_d optab_table[OTI_MAX];
#define expm1_optab (&optab_table[OTI_expm1])
#define ldexp_optab (&optab_table[OTI_ldexp])
#define scalb_optab (&optab_table[OTI_scalb])
#define significand_optab (&optab_table[OTI_significand])
#define logb_optab (&optab_table[OTI_logb])
#define ilogb_optab (&optab_table[OTI_ilogb])
#define log_optab (&optab_table[OTI_log])

10
gcc/testsuite/ChangeLog
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@ -1,3 +1,13 @@
2009-06-19 Uros Bizjak <ubizjak@gmail.com>
* gcc.dg/builtins-34.c: Add significand cases.
2009-06-19 Uros Bizjak <ubizjak@gmail.com>
PR testsuite/40491
* testsuite/gcc.dg/20080522-1.c: Remove testcase for real.
* testsuite/gcc.dg/20080528-1.c: Ditto.
2009-06-19 Janus Weil <janus@gcc.gnu.org>
PR fortran/40450

0
gcc/testsuite/gcc.dg/20080522-1.c
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0
gcc/testsuite/gcc.dg/20080528-1.c
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21
gcc/testsuite/gcc.dg/builtins-34.c
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@ -1,7 +1,6 @@
/* Copyright (C) 2004 Free Software Foundation.
Check that exp10, exp10f, exp10l, exp2, exp2f, exp2l, pow10, pow10f,
pow10l, expm1, expm1f and expm1l built-in functions compile.
Check that various built-in functions compile.
Written by Uros Bizjak, 13th February 2004. */
@ -16,6 +15,7 @@ extern double ldexp(double, int);
extern double scalb(double, double);
extern double scalbn(double, int);
extern double scalbln(double, long);
extern double significand(double);
extern float exp10f(float);
extern float exp2f(float);
extern float pow10f(float);
@ -24,6 +24,7 @@ extern float ldexpf(float, int);
extern float scalbf(float, float);
extern float scalbnf(float, int);
extern float scalblnf(float, long);
extern float significandf(float);
extern long double exp10l(long double);
extern long double exp2l(long double);
extern long double pow10l(long double);
@ -32,6 +33,7 @@ extern long double ldexpl(long double, int);
extern long double scalbl(long double, long double);
extern long double scalbnl(long double, int);
extern long double scalblnl(long double, long);
extern long double significandl(long double);
double test1(double x)
@ -74,6 +76,11 @@ double test8(double x, long exp)
return scalbln(x, exp);
}
double test9(double x)
{
return significand(x);
}
float test1f(float x)
{
return exp10f(x);
@ -114,6 +121,11 @@ float test8f(float x, long exp)
return scalblnf(x, exp);
}
float test9f(float x)
{
return significandf(x);
}
long double test1l(long double x)
{
return exp10l(x);
@ -153,3 +165,8 @@ long double test8l(long double x, long exp)
{
return scalblnl(x, exp);
}
long double test9l(long double x)
{
return significandl(x);
}