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	Commit message (Collapse)	Author	Age	Files	Lines
*	S390: configure check for vector instruction support in assembler.	Stefan Liebler	2015-08-26	1	-0/+29
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	The S390 specific test checks if the assembler has support for the new z13 vector instructions by compiling a vector instruction. The .machine and .machinemode directives are needed to compile the vector instruction without -march=z13 option on 31/64 bit. On success the macro HAVE_S390_VX_ASM_SUPPORT is defined. This macro is used to determine if the optimized functions can be build without compile errors. If the used assembler lacks vector support, then a warning is dumped while configuring and only the common code functions are build. The z13 instruction support was introduced in "[Committed] S/390: Add support for IBM z13." (https://sourceware.org/ml/binutils/2015-01/msg00197.html) ChangeLog: * config.h.in (HAVE_S390_VX_ASM_SUPPORT): New macro undefine. * sysdeps/s390/configure.ac: Add test for S390 vector instruction assembler support. * sysdeps/s390/configure: Regenerated.
*	S/390: Port of lock elision to System/z	Dominik Vogt	2014-05-09	1	-0/+26
\| \| \| \| \| \| \| \| \| \|	Added support for TX lock elision of pthread mutexes on s390 and s390x. This may improve lock scaling of existing programs on TX capable systems. The lock elision code is only built with --enable-lock-elision=yes and then requires a GCC version supporting the TX builtins. With lock elision default mutexes are elided via __builtin_tbegin, if the cpu supports transactions. By default lock elision is not enabled and the elision code is not built.
*	[BZ #14770] S/390: Require Binutils >= 2.24 for target S/390.	Stefan Liebler	2014-04-16	1	-0/+8
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*	S/390: Unify 31 and 64 bit configure.ac	Stefan Liebler	2014-04-11	1	-0/+6