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4 Commits

Author SHA1 Message Date
Richard Sandiford 8e92c389e4 [SystemZ] Add FI[EDX]BRA 
These are extensions of the existing FI[EDX]BR instructions, but use a spare
bit to suppress inexact conditions.

llvm-svn: 188894
 2013-08-21 08:58:08 +00:00
Richard Sandiford 6cf80b3ec0 [SystemZ] Add RISBLG and RISBHG instruction definitions 
The next patch will make use of RISBLG for codegen.

llvm-svn: 187490
 2013-07-31 11:17:35 +00:00
Richard Sandiford a68e6f5660 [SystemZ] Add STOC and STOCG 
These instructions are allowed to trap even if the condition is false,
so for now they are only used for "*ptr = (cond ? x : *ptr)"-style
constructs.

llvm-svn: 187111
 2013-07-25 08:57:02 +00:00
Richard Sandiford 27d1cfe3d4 [SystemZ] Start adding z196 and zEC12 support 
This first step just adds definitions for SLLK, SRLK and SRAK.
The next patch will actually make use of them during codegen.

insn-bad.s tests that some form of error is reported when using these
instructions on z10.  More work is needed to get the "instruction requires:
distinct-ops" that we'd ideally like, so I've stubbed that part out for now.
I'll come back and make it mandatory once the necessary changes are in.

llvm-svn: 186680
 2013-07-19 16:09:03 +00:00