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18 Commits

Author SHA1 Message Date
Richard Sandiford dc6c2c953d [SystemZ] Add support for z196 float<->unsigned conversions 
These complement the older float<->signed instructions.

llvm-svn: 204451
 2014-03-21 10:56:30 +00:00
Richard Sandiford 45645a2c1c [SystemZ] Add MC support for interlocked-access 1 instructions 
llvm-svn: 197984
 2013-12-24 15:14:05 +00:00
Richard Sandiford b63e300b67 [SystemZ] Add comparisons of high words and memory 
llvm-svn: 191777
 2013-10-01 15:00:44 +00:00
Richard Sandiford a9ac0e0f75 [SystemZ] Add comparisons of large immediates using high words 
There are no corresponding patterns for small immediates because they would
prevent the use of fused compare-and-branch instructions.

llvm-svn: 191775
 2013-10-01 14:56:23 +00:00
Richard Sandiford 42a694f44e [SystemZ] Add immediate addition involving high words 
llvm-svn: 191774
 2013-10-01 14:53:46 +00:00
Richard Sandiford 5469c39a26 [SystemZ] Add truncating high-word stores (STCH and STHH) 
llvm-svn: 191743
 2013-10-01 12:22:49 +00:00
Richard Sandiford 0d46b1a30f [SystemZ] Add zero-extending high-word loads (LLCH and LLHH) 
llvm-svn: 191742
 2013-10-01 12:19:08 +00:00
Richard Sandiford 89e160d975 [SystemZ] Add sign-extending high-word loads (LBH and LHH) 
llvm-svn: 191740
 2013-10-01 12:11:47 +00:00
Richard Sandiford a26a4b4f60 [SystemZ] Reapply: Add definitions of LFH and STFH 
Originally committed as r191661, but reverted because it changed the matching
order of comparisons on some hosts.  That should have been fixed by r191735.

llvm-svn: 191738
 2013-10-01 10:31:04 +00:00
Richard Sandiford a25f268c25 [SystemZ] Revert r191661: Add definitions of LFH and STFH 
For some reason, adding definitions for these load and store
instructions changed whether some of the build bots matched
comparisons as signed or unsigned.

llvm-svn: 191663
 2013-09-30 12:01:35 +00:00
Richard Sandiford d30ac3a125 [SystemZ] Add definitions of LFH and STFH 
llvm-svn: 191661
 2013-09-30 10:50:33 +00:00
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 f2404164ba [SystemZ] Add LOCR and LOCGR 
llvm-svn: 187113
 2013-07-25 09:11:15 +00:00
Richard Sandiford 09a8cf3604 [SystemZ] Add LOC and LOCG 
As with the stores, these instructions can trap when the condition is false,
so they are only used for things like (cond ? x : *ptr).

llvm-svn: 187112
 2013-07-25 09:04:52 +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 7d6a453623 [SystemZ] Add AHIK and AGHIK 
I did these as a separate patch because it uses a slightly different
form of RIE layout.

llvm-svn: 186687
 2013-07-19 16:32:12 +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