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riscv-gcc-1
Commit 3b8e0c91 by Uros Bizjak Committed by Roger Sayle
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optabs.h (enum optab_index): Add new OTI_log10 and OTI_log2. 

2004-02-11  Uros Bizjak  <uros@kss-loka.si>

	* optabs.h (enum optab_index): Add new OTI_log10 and OTI_log2.
	(log10_optab, log2_optab): Define corresponding macros.
	* optabs.c (init_optabs): Initialize log10_optab and log2_optab.
	* genopinit.c (optabs): Implement log10_optab and log2_optab
	using log10?f2 and log2?f2 patterns.
	* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOG10{,F,L}
	using log10_optab, and BUILT_IN_LOG2{,F,L} using log2_optab.
	(expand_builtin): Expand BUILT_IN_LOG10{,F,L} and BUILT_IN_LOG2{,F,L}
	using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

	* config/i386/i386.md (log10sf2, log10df2, log10xf2, log2sf2,
	log2df2, log2xf2): New patterns to implement log10, log10f, log10l,
	log2, log2f and log2l built-ins as inline x87 intrinsics.

	* gcc.dg/builtins-33.c: New test.

From-SVN: r77675
parent a6abdce3
Showing with 174 additions and 0 deletions
gcc/ChangeLog
2004-02-11 Uros Bizjak <uros@kss-loka.si>
* optabs.h (enum optab_index): Add new OTI_log10 and OTI_log2.
(log10_optab, log2_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize log10_optab and log2_optab.
* genopinit.c (optabs): Implement log10_optab and log2_optab
using log10?f2 and log2?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOG10{,F,L}
using log10_optab, and BUILT_IN_LOG2{,F,L} using log2_optab.
(expand_builtin): Expand BUILT_IN_LOG10{,F,L} and BUILT_IN_LOG2{,F,L}
using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* config/i386/i386.md (log10sf2, log10df2, log10xf2, log2sf2,
log2df2, log2xf2): New patterns to implement log10, log10f, log10l,
log2, log2f and log2l built-ins as inline x87 intrinsics.
2004-02-11 Richard Henderson <rth@redhat.com>
* flow.c (insn_dead_p): A clobber of a dead hard register is a
......
gcc/builtins.c
......@@ -1662,6 +1662,14 @@ expand_builtin_mathfn (tree exp, rtx target, rtx subtarget)
case BUILT_IN_LOGF:
case BUILT_IN_LOGL:
errno_set = true; builtin_optab = log_optab; break;
case BUILT_IN_LOG10:
case BUILT_IN_LOG10F:
case BUILT_IN_LOG10L:
errno_set = true; builtin_optab = log10_optab; break;
case BUILT_IN_LOG2:
case BUILT_IN_LOG2F:
case BUILT_IN_LOG2L:
errno_set = true; builtin_optab = log2_optab; break;
case BUILT_IN_TAN:
case BUILT_IN_TANF:
case BUILT_IN_TANL:
......@@ -5130,6 +5138,12 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
case BUILT_IN_LOG:
case BUILT_IN_LOGF:
case BUILT_IN_LOGL:
case BUILT_IN_LOG10:
case BUILT_IN_LOG10F:
case BUILT_IN_LOG10L:
case BUILT_IN_LOG2:
case BUILT_IN_LOG2F:
case BUILT_IN_LOG2L:
case BUILT_IN_TAN:
case BUILT_IN_TANF:
case BUILT_IN_TANL:
......
gcc/config/i386/i386.md
......@@ -15154,6 +15154,88 @@
emit_move_insn (operands[2], temp);
})
(define_expand "log10sf2"
[(parallel [(set (match_operand:SF 0 "register_operand" "")
(unspec:SF [(match_operand:SF 1 "register_operand" "")
(match_dup 2)] UNSPEC_FYL2X))
(clobber (match_scratch:SF 3 ""))])]
"! TARGET_NO_FANCY_MATH_387 && TARGET_80387
&& flag_unsafe_math_optimizations"
{
rtx temp;
operands[2] = gen_reg_rtx (XFmode);
temp = standard_80387_constant_rtx (3); /* fldlg2 */
emit_move_insn (operands[2], temp);
})
(define_expand "log10df2"
[(parallel [(set (match_operand:DF 0 "register_operand" "")
(unspec:DF [(match_operand:DF 1 "register_operand" "")
(match_dup 2)] UNSPEC_FYL2X))
(clobber (match_scratch:DF 3 ""))])]
"! TARGET_NO_FANCY_MATH_387 && TARGET_80387
&& flag_unsafe_math_optimizations"
{
rtx temp;
operands[2] = gen_reg_rtx (XFmode);
temp = standard_80387_constant_rtx (3); /* fldlg2 */
emit_move_insn (operands[2], temp);
})
(define_expand "log10xf2"
[(parallel [(set (match_operand:XF 0 "register_operand" "")
(unspec:XF [(match_operand:XF 1 "register_operand" "")
(match_dup 2)] UNSPEC_FYL2X))
(clobber (match_scratch:XF 3 ""))])]
"! TARGET_NO_FANCY_MATH_387 && TARGET_80387
&& flag_unsafe_math_optimizations"
{
rtx temp;
operands[2] = gen_reg_rtx (XFmode);
temp = standard_80387_constant_rtx (3); /* fldlg2 */
emit_move_insn (operands[2], temp);
})
(define_expand "log2sf2"
[(parallel [(set (match_operand:SF 0 "register_operand" "")
(unspec:SF [(match_operand:SF 1 "register_operand" "")
(match_dup 2)] UNSPEC_FYL2X))
(clobber (match_scratch:SF 3 ""))])]
"! TARGET_NO_FANCY_MATH_387 && TARGET_80387
&& flag_unsafe_math_optimizations"
{
operands[2] = gen_reg_rtx (XFmode);
emit_move_insn (operands[2], CONST1_RTX (XFmode)); /* fld1 */
})
(define_expand "log2df2"
[(parallel [(set (match_operand:DF 0 "register_operand" "")
(unspec:DF [(match_operand:DF 1 "register_operand" "")
(match_dup 2)] UNSPEC_FYL2X))
(clobber (match_scratch:DF 3 ""))])]
"! TARGET_NO_FANCY_MATH_387 && TARGET_80387
&& flag_unsafe_math_optimizations"
{
operands[2] = gen_reg_rtx (XFmode);
emit_move_insn (operands[2], CONST1_RTX (XFmode)); /* fld1 */
})
(define_expand "log2xf2"
[(parallel [(set (match_operand:XF 0 "register_operand" "")
(unspec:XF [(match_operand:XF 1 "register_operand" "")
(match_dup 2)] UNSPEC_FYL2X))
(clobber (match_scratch:XF 3 ""))])]
"! TARGET_NO_FANCY_MATH_387 && TARGET_80387
&& flag_unsafe_math_optimizations"
{
operands[2] = gen_reg_rtx (XFmode);
emit_move_insn (operands[2], CONST1_RTX (XFmode)); /* fld1 */
})
(define_insn "*fscale_sfxf3"
[(set (match_operand:SF 0 "register_operand" "=f")
(unspec:SF [(match_operand:XF 2 "register_operand" "0")
......
gcc/genopinit.c
......@@ -126,6 +126,8 @@ static const char * const optabs[] =
"cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
"exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
"log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
"log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
"log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
"tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
"atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
"strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
......
gcc/optabs.c
......@@ -5263,6 +5263,8 @@ init_optabs (void)
cos_optab = init_optab (UNKNOWN);
exp_optab = init_optab (UNKNOWN);
log_optab = init_optab (UNKNOWN);
log10_optab = init_optab (UNKNOWN);
log2_optab = init_optab (UNKNOWN);
tan_optab = init_optab (UNKNOWN);
atan_optab = init_optab (UNKNOWN);
strlen_optab = init_optab (UNKNOWN);
......
gcc/optabs.h
......@@ -156,6 +156,10 @@ enum optab_index
OTI_exp,
/* Natural Logarithm */
OTI_log,
/* Base-10 Logarithm */
OTI_log10,
/* Base-2 Logarithm */
OTI_log2,
/* Rounding functions */
OTI_floor,
OTI_ceil,
......@@ -260,6 +264,8 @@ extern GTY(()) optab optab_table[OTI_MAX];
#define cos_optab (optab_table[OTI_cos])
#define exp_optab (optab_table[OTI_exp])
#define log_optab (optab_table[OTI_log])
#define log10_optab (optab_table[OTI_log10])
#define log2_optab (optab_table[OTI_log2])
#define floor_optab (optab_table[OTI_floor])
#define ceil_optab (optab_table[OTI_ceil])
#define btrunc_optab (optab_table[OTI_trunc])
......
gcc/testsuite/ChangeLog
2004-02-11 Uros Bizjak <uros@kss-loka.si>
* gcc.dg/builtins-33.c: New test.
2004-02-11 Paolo Bonzini <bonzini@gnu.org>
* gcc.dg/pr14092-1.c: Use intptr_t for the cast.
......
gcc/testsuite/gcc.dg/builtins-33.c 0 → 100644
/* Copyright (C) 2004 Free Software Foundation.
Check that log10, log10f, log10l, log2, log2f and log2l
built-in functions compile.
Written by Uros Bizjak, 11th February 2004. */
/* { dg-do compile } */
/* { dg-options "-O2 -ffast-math" } */
extern double log10(double);
extern double log2(double);
extern float log10f(float);
extern float log2f(float);
extern long double log10l(long double);
extern long double log2l(long double);
double test1(double x)
{
return log10(x);
}
double test2(double x)
{
return log2(x);
}
float test1f(float x)
{
return log10f(x);
}
float test2f(float x)
{
return log2f(x);
}
long double test1l(long double x)
{
return log10l(x);
}
long double test2l(long double x)
{
return log2l(x);
}
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