Sanjay Patel e4e5cf5a66 make reciprocal estimate code generation more flexible by adding command-line options (3rd try) ... The first try (r238051) to land this was reverted due to ExecutionEngine build failure; that was hopefully addressed by r238788. The second try (r238842) to land this was reverted due to BUILD_SHARED_LIBS failure; that was hopefully addressed by r238953. This patch adds a TargetRecip class for processing many recip codegen possibilities. The class is intended to handle both command-line options to llc as well as options passed in from a front-end such as clang with the -mrecip option. The x86 backend is updated to use the new functionality. Only -mcpu=btver2 with -ffast-math should see a functional change from this patch. All other x86 CPUs continue to *not* use reciprocal estimates by default with -ffast-math. Differential Revision: http://reviews.llvm.org/D8982 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239001 91177308-0d34-0410-b5e6-96231b3b80d8		2015-06-04 01:32:35 +00:00
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llvm	make reciprocal estimate code generation more flexible by adding command-line options (3rd try)	2015-06-04 01:32:35 +00:00
llvm-c	LTO: Add API to choose whether to embed uselists	2015-04-27 23:38:54 +00:00