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66192aa129
gcc/libgcc/config
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Ding-Kai Chen 66192aa129 xtensa: add HW FPU sequences for DIV/SQRT/RECIP/RSQRT 
Use new FPU instruction sequences documented in the ISA book to
implement __divsf3, __divdf3, __recipsf2, __recipdf2, __rsqrtsf2,
__rsqrtdf2 and __ieee754_sqrtf and __ieee754_sqrt.

2016-10-18  Ding-Kai Chen  <dkchen@cadence.com>
libgcc/
	* config/xtensa/ieee754-df.S (__recipdf2, __rsqrtdf2,
	__ieee754_sqrt): New functions.
	(__divdf3): Add implementation with new FPU instructions under
	#if XCHAL_HAVE_DFP_DIV.
	* config/xtensa/ieee754-sf.S (__recipsf2, __rsqrtsf2,
	__ieee754_sqrtf): New functions.
	(__divsf3): Add implementation with new FPU instructions under
	#if XCHAL_HAVE_FP_DIV.
	* config/xtensa/t-xtensa (LIB1ASMFUNCS): Add _sqrtf, _recipsf2
	_rsqrtsf2, _sqrt, _recipdf2 and _rsqrtdf2.

From-SVN: r241312
2016-10-18 19:06:33 +00:00
..
aarch64 Update copyright years. 2016-01-04 15:30:50 +01:00
alpha Update copyright years. 2016-01-04 15:30:50 +01:00
arc [ARC] Handle FPX NaN within optimized floating point library. 2016-04-29 12:49:26 +02:00
arm [ARM] Fix PR target/59833 2016-07-21 08:27:47 +00:00
avr lib1funcs.S (__muldi3): No need to clear zero_reg as previous call to __umulhisi3 already cleared it. 2016-07-29 09:14:02 +00:00
bfin Update copyright years. 2016-01-04 15:30:50 +01:00
c6x Update copyright years. 2016-01-04 15:30:50 +01:00
cr16 Update copyright years. 2016-01-04 15:30:50 +01:00
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fr30 Update copyright years. 2016-01-04 15:30:50 +01:00
frv Update copyright years. 2016-01-04 15:30:50 +01:00
ft32 ft32.opt (mnodiv): New. 2016-03-29 00:37:26 +00:00
h8300 Update copyright years. 2016-01-04 15:30:50 +01:00
i386 defaults.h (JCR_SECTION_NAME, [...]): Remove. 2016-10-04 09:49:44 +02:00
ia64 crtbegin.S (__do_jv_register_classes): Remove. 2016-10-05 07:50:34 +00:00
iq2000 Update copyright years. 2016-01-04 15:30:50 +01:00
libbid Update copyright years. 2016-01-04 15:30:50 +01:00
lm32 Update copyright years. 2016-01-04 15:30:50 +01:00
m32c Update copyright years. 2016-01-04 15:30:50 +01:00
m32r Update copyright years. 2016-01-04 15:30:50 +01:00
m68k * config/m68k/linux-atomic.c: Do not include unistd.h 2016-04-21 23:43:43 -06:00
mcore Update copyright years. 2016-01-04 15:30:50 +01:00
microblaze Update copyright years. 2016-01-04 15:30:50 +01:00
mips [mips] Fix linux header use in libgcc 2016-08-25 14:08:27 +00:00
mmix Update copyright years. 2016-01-04 15:30:50 +01:00
moxie Update copyright years. 2016-01-04 15:30:50 +01:00
msp430 cmpd.c (__mspabi_cmpf): Add prototype. 2016-04-25 11:13:35 +00:00
nds32 Update copyright years. 2016-01-04 15:30:50 +01:00
nios2 Update copyright years. 2016-01-04 15:30:50 +01:00
nvptx free.asm: Delete. 2016-05-26 14:22:40 +00:00
pa fptr.c (__canonicalize_funcptr_for_compare): Don't set least-significant bit in function pointer for fixup. 2016-06-18 17:49:58 +00:00
pdp11
rl78 Update copyright years. 2016-01-04 15:30:50 +01:00
rs6000 _divkc3.c: Add copyright/license boilerplate. 2016-07-29 20:15:54 +00:00
rx Update copyright years. 2016-01-04 15:30:50 +01:00
s390 S/390: Add -fsplit-stack support 2016-02-15 10:20:18 +00:00
score Update copyright years. 2016-01-04 15:30:50 +01:00
sh crt1.S: Remove SH5 support. 2016-04-29 14:10:26 +00:00
sol2 Save call-clobbered registers in _mcount on 32-bit Solaris/x86 (PR target/38239) 2016-03-16 11:57:02 +00:00
sparc Update copyright years. 2016-01-04 15:30:50 +01:00
spu Update copyright years. 2016-01-04 15:30:50 +01:00
stormy16 Update copyright years. 2016-01-04 15:30:50 +01:00
tilegx
tilepro Move MEMMODEL_* from coretypes.h to memmodel.h 2016-10-13 14:17:52 +00:00
v850 Update copyright years. 2016-01-04 15:30:50 +01:00
vax Update copyright years. 2016-01-04 15:30:50 +01:00
visium Update copyright years. 2016-01-04 15:30:50 +01:00
vms Update copyright years. 2016-01-04 15:30:50 +01:00
xtensa xtensa: add HW FPU sequences for DIV/SQRT/RECIP/RSQRT 2016-10-18 19:06:33 +00:00
darwin-64.c Update copyright years. 2016-01-04 15:30:50 +01:00
darwin-crt3.c Update copyright years. 2016-01-04 15:30:50 +01:00
darwin-crt-tm.c Update copyright years. 2016-01-04 15:30:50 +01:00
gthr-lynx.h Update copyright years. 2016-01-04 15:30:50 +01:00
gthr-rtems.h Update copyright years. 2016-01-04 15:30:50 +01:00
gthr-vxworks.h Update copyright years. 2016-01-04 15:30:50 +01:00
hardfp.c Update copyright years. 2016-01-04 15:30:50 +01:00
libgcc-glibc.ver Update copyright years. 2016-01-04 15:30:50 +01:00
libgcc-libsystem.ver
no-sfp-machine.h
no-unwind.h
t-crtfm
t-crtstuff-pic
t-darwin
t-dfprules
t-eh-dw2-dip
t-fdpbit
t-fixedpoint-gnu-prefix
t-fpbit
t-freebsd-thread
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t-hardfp Update copyright years. 2016-01-04 15:30:50 +01:00
t-hardfp-sfdf Update copyright years. 2016-01-04 15:30:50 +01:00
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t-libunwind-elf Update copyright years. 2016-01-04 15:30:50 +01:00
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t-slibgcc Update copyright years. 2016-01-04 15:30:50 +01:00
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t-slibgcc-libgcc Update copyright years. 2016-01-04 15:30:50 +01:00
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t-softfp Update copyright years. 2016-01-04 15:30:50 +01:00
t-softfp-compat
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t-softfp-sfdf
t-softfp-sfdftf IA MCU psABI support: changes to libraries 2015-06-30 09:42:07 -07:00
t-softfp-tf
t-stack
t-tls
t-vxworks
unwind-dw2-fde-darwin.c Update copyright years. 2016-01-04 15:30:50 +01:00
vxlib-tls.c Update copyright years. 2016-01-04 15:30:50 +01:00
vxlib.c Update copyright years. 2016-01-04 15:30:50 +01:00