assembler such as shifts greater than 32. In the case
of direct object, the code gen needs to do this lowering
since the assembler is not involved.
With the advent of the llvm-mc assembler, it also needs
to do the same lowering.
This patch makes that specific lowering code accessible
to both the direct object output and the assembler.
This patch does not affect generated output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163287 91177308-0d34-0410-b5e6-96231b3b80d8
These pseudos are no longer needed now that it is possible to represent
predicated instructions in SSA form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163275 91177308-0d34-0410-b5e6-96231b3b80d8
Now that it is possible to dynamically tie MachineInstr operands,
predicated instructions are possible in SSA form:
%vreg3<def> = SUBri %vreg1, -2147483647, pred:14, pred:%noreg, %opt:%noreg
%vreg4<def,tied1> = MOVCCr %vreg3<tied0>, %vreg1, %pred:12, pred:%CPSR
Becomes a predicated SUBri with a tied imp-use:
SUBri %vreg1, -2147483647, pred:13, pred:%CPSR, opt:%noreg, %vreg1<imp-use,tied0>
This means that any instruction that is safe to move can be folded into
a MOVCC, and the *CC pseudo-instructions are no longer needed.
The test case changes reflect that Thumb2SizeReduce recognizes the
predicated instructions. It didn't understand the pseudos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163274 91177308-0d34-0410-b5e6-96231b3b80d8
switch, make sure we include the value for the cases when calculating edge
value from switch to the default destination.
rdar://12241132
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163270 91177308-0d34-0410-b5e6-96231b3b80d8
Since TOC is just defined for PPC64, move its definition to PPC64 td file.
Patch by Adhemerval Zanella.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163234 91177308-0d34-0410-b5e6-96231b3b80d8
Previous patch accidentally decided it couldn't convert a VFP to a
NEON instruction after it had already destroyed the old one. Not a
good move.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163230 91177308-0d34-0410-b5e6-96231b3b80d8
Make sure to return a pointer into the target memory, not the local memory.
Often they are the same, but we can't assume that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163217 91177308-0d34-0410-b5e6-96231b3b80d8
It relies on clear() being fast and the cache rarely has more than 1 or 2
elements, so give it an inline capacity and always shrink it back down in case
it grows. DenseMap will grow to 64 buckets which makes clear() a lot slower.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163215 91177308-0d34-0410-b5e6-96231b3b80d8
subreg_hireg of register pair Rp.
* lib/Target/Hexagon/HexagonPeephole.cpp(PeepholeDoubleRegsMap): New
DenseMap similar to PeepholeMap that additionally records subreg info
too.
(runOnMachineFunction): Record information in PeepholeDoubleRegsMap
and copy propagate the high sub-reg of Rp0 in Rp1 = lsr(Rp0, #32) to
the instruction Rx = COPY Rp1:logreg_subreg.
* test/CodeGen/Hexagon/remove_lsr.ll: New test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163214 91177308-0d34-0410-b5e6-96231b3b80d8
pointers-to-strong-pointers may be in play. These can lead to retains and
releases happening in unstructured ways, foiling the optimizer. This fixes
rdar://12150909.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163180 91177308-0d34-0410-b5e6-96231b3b80d8
Implicit uses can be dynamically tied to defs. This will soon be used
for predicated instructions on ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163177 91177308-0d34-0410-b5e6-96231b3b80d8
implementation does not co-exist well with how the sideeffect and alignstack
attributes are handled. The reverts r161641.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163174 91177308-0d34-0410-b5e6-96231b3b80d8
Nadav Rotem
James Molloy
Michael Liao
Craig Topper
NAKAMURA Takumi
Jack Carter
Jim Grosbach
Jakob Stoklund Olesen
Chad Rosier
Manman Ren
Roman Divacky
Hal Finkel
Tim Northover
Benjamin Kramer
Pranav Bhandarkar
Kostya Serebryany
Silviu Baranga
Logan Chien
Richard Smith
Dan Gohman
Jakub Staszak