arithmetic and logical instructions with three register operands derive from
them. Fix instruction encoding too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141736 91177308-0d34-0410-b5e6-96231b3b80d8
Fill out the rest of the encoding information, update to properly mark
the LDC/STC instructions as predicable while the LDC2/STC2 instructions are
not, and adjust the parser accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141721 91177308-0d34-0410-b5e6-96231b3b80d8
that have 64-bit pointers or access the 32 x 64-bit floating pointer register
file. Update functions in MipsInstrInfo.cpp too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141623 91177308-0d34-0410-b5e6-96231b3b80d8
The VMOVS widening needs to look at the implicit COPY operands. Trying
to dig out the COPY instruction from an iterator in copyPhysReg() is the
wrong approach.
The expandPostRAPseudo() hook gets to look at COPY instructions before
they are converted to copyPhysReg() calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141619 91177308-0d34-0410-b5e6-96231b3b80d8
for 64-bit load and store instructions. Add definitions of 64-bit memory operand
and 16-bit immediate operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141603 91177308-0d34-0410-b5e6-96231b3b80d8
promoting allocas to preferred alignments that exceed the natural
alignment. This avoids some potentially expensive dynamic stack realignments.
The natural stack alignment is set in target data strings via the "S<size>"
option. Size is in bits and must be a multiple of 8. The natural stack alignment
defaults to "unspecified" (represented by a zero value), and the "unspecified"
value does not prevent any alignment promotions. Target maintainers that care
about avoiding promotions should explicitly add the "S<size>" option to their
target data strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141599 91177308-0d34-0410-b5e6-96231b3b80d8
block. E.g., if we have:
movs r1, r1
rsb r1, 0
movs r2, r2
rsb r2, 0
we don't want this to be converted to:
movs r1, r1
movs r2, r2
itt mi
rsb r1, 0
rsb r2, 0
PR11107 & <rdar://problem/10259534>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141589 91177308-0d34-0410-b5e6-96231b3b80d8
ARMII::AddrModeT1_s, we need to take into account that if the frame register is
ARM::SP, then the number of bits is 8. If it's not ARM::SP, then the number of
bits is 5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141529 91177308-0d34-0410-b5e6-96231b3b80d8
the tADDrSPi instruction can't be used. Make sure we're updating the opcode
to tADDi3 in all cases.
rdar://10254707
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141523 91177308-0d34-0410-b5e6-96231b3b80d8
A GR8_NOREX virtual register is created when extrating a sub_8bit_hi
sub-register:
%vreg2<def> = COPY %vreg1:sub_8bit_hi; GR8_NOREX:%vreg2 %GR64_ABCD:%vreg1
TEST8ri_NOREX %vreg2, 1, %EFLAGS<imp-def>; GR8_NOREX:%vreg2
If such a live range is ever split, its register class must not be
inflated to GR8. The sub-register copy can only target GR8_NOREX.
I dont have a test case for this theoretical bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141500 91177308-0d34-0410-b5e6-96231b3b80d8
In 64-bit mode, sub_8bit_hi sub-registers can only be used by NOREX
instructions. The COPY created from the EXTRACT_SUBREG DAG node cannot
target all GR8 registers, only those in GR8_NOREX.
TO enforce this, we ensure that all instructions using the
EXTRACT_SUBREG are GR8_NOREX constrained.
This fixes PR11088.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141499 91177308-0d34-0410-b5e6-96231b3b80d8
