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6 Commits

Author SHA1 Message Date
Tim Northover
6f54bcc408 AArch64 & ARM: remove undefined behaviour from some tests. 
llvm-svn: 209880
 2014-05-30 08:59:55 +00:00
Benjamin Kramer
279e5cfa9a Remove the old CodePlacementOpt pass. 
It was superseded by MachineBlockPlacement and disabled by default since LLVM 3.1.

llvm-svn: 178349
 2013-03-29 17:14:24 +00:00
Jakob Stoklund Olesen
8d6641a2b2 Disable code placement for this test. 
It makes it less sensitive to small changes in heuristics.

llvm-svn: 154857
 2012-04-16 20:49:06 +00:00
Lang Hames
5685c98688 Change the constant in this testcase so that it results in a constant pool 
load.

llvm-svn: 153704
 2012-03-29 23:52:38 +00:00
Jim Grosbach
4a2f107b04 ARM VLDR/VSTR instructions don't need a size suffix. 
Canonicallize on the non-suffixed form, but continue to accept assembly that
has any correctly sized type suffix.

llvm-svn: 144583
 2011-11-14 23:03:21 +00:00
Jakob Stoklund Olesen
2611cc2520 Fix -widen-vmovs liveness issues. 
When widening a copy, we are reading a larger register that may not be
live.  Use an <undef> flag to tell the register scavenger and machine
code verifier that we know the value isn't defined.

We now widen:

  %S6<def> = COPY %S4<kill>, %D3<imp-def>

into:

  %D3<def> = VMOVD %D2<undef>, pred:14, pred:%noreg, %S4<imp-use,kill>

This also keeps the <kill> flag on %S4 so we don't inadvertently kill a
live value in %S5.

Finally, ensure that ARMBaseInstrInfo::setExecutionDomain() preserves
the <undef> flag when converting VMOVD to VORR.

llvm-svn: 141746
 2011-10-12 00:06:23 +00:00