In the past the "-ftree-loop-linear" switch provided a measurable
improvement in performance for certain functions. At some point it
was assigned as the responsibility of Graphite in GCC. It has been
found that even with Graphite enabled these flags no longer perform
any appreciable improvement over the baseline.
Graphite now has some open bugs which need to be fixed in order for it
to provide measurable performance improvements but it lacks active
development. As a result some compiler distributors may disable
Graphite. If Graphite is disabled then building GLIBC will fail if
the "-ftree-loop-linear" switch is used.
This patch removes the use of "-ftree-loop-linear" as unnecessary.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S (__lround): Fixed erroneous
result when x is +/-nextafter(+/-0.5,-/+1) i.e. all 1's in the
mantissa.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S (__llround):
Likewise. Also account for when x is an odd number between 2^52
and 2^53-1.
* sysdeps/powerpc/powerpc64/fpu/s_llround.S (__llround): Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S (__llroundf): Likewise.
* math/libm-test.inc (lround_test, llround_test): Added test cases to
detect aforementioned erroneous conditions.
* sysdeps/powerpc/powerpc32/power4/hp-timing.h: New file.
* sysdeps/powerpc/powerpc64/hp-timing.h [_ARCH_PWR4] (HP_TIMING_NOW):
For ISA 2.01 and later replace mftb with mfspr 268.
* sysdeps/i386/i686/memcpy.S: Optimize copying of equally aligned
buffers.
* sysdeps/powerpc/powerpc32/power5/fpu/Implies: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/Implies: New file.
* sysdeps/powerpc/powerpc32/power6/fpu/Implies: New file.
* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/970/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power5/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power6/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/970/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power4/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power5/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power5+/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6x/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/970/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power4/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power5/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power5+/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6x/fpu/Implies:
New file.
2007-05-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: To here.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: To here.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: To here.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llroundf.S: To here.
2007-05-22 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
2007-05-21 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/fpu/slowexp.c: New file.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/slowexp.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c: New file.
2007-03-15 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S
[LONG_DOUBLE_COMPAT]: Add compat_symbol for llrintl@@GLIBC_2_1.
2006-02-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: New File
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: New File
* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: New File
* sysdeps/powerpc/powerpc32/power6/fpu/s_llroundf.S: New File
2006-10-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c: New file.
2006-10-03 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: Moved.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/Makefile: To here.
* sysdeps/powerpc/powerpc32/power4/fpu/mpa.c: Likewise.
2006-09-29 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: New file.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: New file.
2006-09-28 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llroundf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: New file.
* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file.
2006-08-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/Makefile: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/mpa.c: New file.
2006-06-15 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_roundf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_truncf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: New file.
2006-03-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: New file.
2007-06-01 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/memset.S: New file.
* sysdeps/powerpc/powerpc64/power6/memset.S: New file.
2007-05-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/970/Implies: New file.
* sysdeps/powerpc/powerpc32/power5/Implies: New file.
* sysdeps/powerpc/powerpc32/power5+/Implies: New file.
* sysdeps/powerpc/powerpc32/power6/Implies: New file.
* sysdeps/powerpc/powerpc32/power6x/Implies: New file.
* sysdeps/powerpc/powerpc64/970/Implies: New file.
* sysdeps/powerpc/powerpc64/power5/Implies: New file.
* sysdeps/powerpc/powerpc64/power5+/Implies: New file.
* sysdeps/powerpc/powerpc64/power6/Implies: New file.
* sysdeps/powerpc/powerpc64/power6x/Implies: New file.
2007-05-21 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/memset.S: New file
2007-03-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/memcpy.S: Improve aligned loop to minimize
branch miss-predicts. Ensure that cache line crossing does not impact
dispatch grouping.
2006-12-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/power4/memcopy.h: Replace with include
"../../powerpc32/power4/memcopy.h".
* sysdeps/powerpc/powerpc64/power4/wordcopy.c: Replace with include
"../../powerpc32/power4/wordcopy.c".
2006-10-03 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/Makefile: Moved.
* sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: Likewise.
* sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/Makefile: To here.
* sysdeps/powerpc/powerpc32/power4/memcopy.h: Likewise.
* sysdeps/powerpc/powerpc32/power4/wordcopy.c: Likewise.
2006-09-10 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/memcpy.S: New file.
2006-08-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/wordcopy.c: New file.
* sysdeps/powerpc/powerpc32/powerpc64/Makefile: New file.
* sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: New file.
* sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: New file.
* sysdeps/powerpc/powerpc64/power4/Makefile: New file.
* sysdeps/powerpc/powerpc64/power4/memcopy.h: New file.
* sysdeps/powerpc/powerpc64/power4/wordcopy.c: New file.
* sysdeps/powerpc/powerpc64/power6/wordcopy.c: New file.
2006-07-06 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/power6/memcpy.S: New file.
2006-03-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/memcmp.S: New file.
* sysdeps/powerpc/powerpc32/power4/memcpy.S: New file.
* sysdeps/powerpc/powerpc32/power4/memset.S: New file.
* sysdeps/powerpc/powerpc32/power4/strncmp.S: New file.
* sysdeps/powerpc/powerpc64/power4/memcmp.S: New file.
* sysdeps/powerpc/powerpc64/power4/memcpy.S: New file.
* sysdeps/powerpc/powerpc64/power4/strncmp.S: New file.