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Michael Meissner 3787ee47fc re PR target/81193 (PowerPC GCC __builtin_cpu_is and __builtin_cpu_supports should warn about old libraries) 
[gcc]
2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81193
	* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If GLIBC
	provides the hardware capability bits, define the macro
	__BUILTIN_CPU_SUPPORTS__.
	* config/rs6000/rs6000.c (cpu_expand_builtin): Generate a warning
	if GLIBC does not provide the hardware capability bits.  Add a
	gcc_unreachable call if the built-in cpu function is neither
	__builtin_cpu_is nor __builtin_cpu_supports.
	(rs6000_get_function_versions_dispatcher): Change the warning
	that an old GLIBC is used which does not export the capability
	bits to be an error.
	* doc/extend.texi (target_clones attribute): Document the
	restriction that GLIBC 2.23 or newer is needed on the PowerPC.
	(PowerPC built-in functions): Document that GLIBC 2.23 or newer is
	needed by __builtin_cpu_is and __builtin_cpu_supports.  Document
	the macros defined by GCC if the newer GLIBC is available.

[gcc/testsuite]
2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81193
	* gcc.target/powerpc/bmi-andn-1.c: Add guard against using
	__builtin_cpu_supports with old GLIBC's.
	* gcc.target/powerpc/bmi-andn-2.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-1.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-2.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-4.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-5.c: Likewise.
	* gcc.target/powerpc/bmi-blsi-1.c: Likewise.
	* gcc.target/powerpc/bmi-blsi-2.c: Likewise.
	* gcc.target/powerpc/bmi-blsmsk-1.c: Likewise.
	* gcc.target/powerpc/bmi-blsmsk-2.c: Likewise.
	* gcc.target/powerpc/bmi-blsr-1.c: Likewise.
	* gcc.target/powerpc/bmi-blsr-2.c: Likewise.
	* gcc.target/powerpc/bmi-tzcnt-1.c: Likewise.
	* gcc.target/powerpc/bmi-tzcnt-2.c: Likewise.
	* gcc.target/powerpc/bmi2-bzhi32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-bzhi64-1.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx32-2.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx64-1.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx64-2.c: Likewise.
	* gcc.target/powerpc/bmi2-pdep32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-pdep64-1.c: Likewise.
	* gcc.target/powerpc/bmi2-pext32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-pext64-1.c: Likewise.
	* gcc.target/powerpc/cpu-builtin-1.c: Likewise.

[libgcc]
2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81193
	* configure.ac (PowerPC float128 hardware support): Test whether
	we can use __builtin_cpu_supports before enabling the ifunc
	handler.
	* configure: Regenerate.

From-SVN: r250165
2017-07-12 23:07:50 +00:00
..
config
float128-ifunc.c: Don't include auxv.h.
2017-07-07 16:08:42 -05:00
soft-fp
op-common.h (_FP_MUL, [...]): Add /* FALLTHRU */ comments.
2017-01-24 23:32:30 +01:00
ChangeLog
re PR target/81193 (PowerPC GCC __builtin_cpu_is and __builtin_cpu_supports should warn about old libraries)
2017-07-12 23:07:50 +00:00
config.host
[ARC] Configure script to allow non uclibc based triplets
2017-07-10 15:55:26 +02:00
config.in
re PR gcov-profile/81080 (target libgcov not built with large file support)
2017-06-21 07:01:34 +00:00
configure
re PR target/81193 (PowerPC GCC __builtin_cpu_is and __builtin_cpu_supports should warn about old libraries)
2017-07-12 23:07:50 +00:00
configure.ac
re PR target/81193 (PowerPC GCC __builtin_cpu_is and __builtin_cpu_supports should warn about old libraries)
2017-07-12 23:07:50 +00:00
crtstuff.c
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dfp-bit.c
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dfp-bit.h
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divmod.c
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empty.mk
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enable-execute-stack-empty.c
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enable-execute-stack-mprotect.c
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find-symver.awk
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fixed-bit.c
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fixed-bit.h
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floatunsidf.c
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floatunsisf.c
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fp-bit.c
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gbl-ctors.h
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gcov.h
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generic-morestack-thread.c
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gstdint.h
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libgcc-std.ver.in
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libgcov-driver-system.c
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libgcov-driver.c
Validate that destination gcov file does not exist for gcov-tool (PR gcov-profile/78783).
2017-04-18 07:24:20 +00:00
libgcov-interface.c
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libgcov-merge.c
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libgcov-profiler.c
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2017-06-09 12:54:53 +00:00
libgcov-util.c
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libgcov.h
re PR gcov-profile/81080 (target libgcov not built with large file support)
2017-06-21 07:01:34 +00:00
Makefile.in
Introduce gcov.h header file (PR gcov-profile/80435).
2017-04-19 08:08:44 +00:00
memcmp.c
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memcpy.c
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memmove.c
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memset.c
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mkheader.sh
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mkmap-flat.awk
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mkmap-symver.awk
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offloadstuff.c
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shared-object.mk
Add the nvptx port.
2014-11-10 16:12:42 +00:00
siditi-object.mk
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static-object.mk
Add the nvptx port.
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sync.c
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udivmod.c
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udivmodsi4.c
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unwind-arm-common.inc
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unwind-dw2-fde.h
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unwind-dw2.c
[AArch64] Only build & test pauth code for LP64
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unwind-dw2.h
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unwind-generic.h
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unwind-pe.h
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unwind-seh.c
unwind-seh.c: Suppress warnings for RtlUnwindEx calls.
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unwind-sjlj.c
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unwind.inc
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vtv_end_preinit.c
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