since it is *necessary* for correct code generation. Only optional
transformations belong in the PreOpts pass (which needs to be renamed
from PreSelection to PreOpts).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7474 91177308-0d34-0410-b5e6-96231b3b80d8
longjmp() (and does not include setjmp.h).
This is to fix some problems on Sparc while non-local jumps are still
unimplemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7449 91177308-0d34-0410-b5e6-96231b3b80d8
that depends on machine register size.
Moved insertCallerSavingCode() to PhyRegAlloc and
moved isRegVolatile and modifiedByCall to TargetRegInfo: they are all
machine independent. Remove several dead functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7392 91177308-0d34-0410-b5e6-96231b3b80d8
immed. field. Moved insertCallerSavingCode() to PhyRegAlloc: it is
now machine independent. Remove all uses of PhyRegAlloc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7391 91177308-0d34-0410-b5e6-96231b3b80d8
spilling values used by an instruction in the delay slot of the branch
(which will eventually be moved before the branch).
2. Bug fix: Delete the delay slot instr, not the branch instr, when
moving delay slot instr. out!!!!
3. Move code to insert caller-saves moved here from SparcRegInfo:
it is now machine-independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7389 91177308-0d34-0410-b5e6-96231b3b80d8
machine-independent.
Fix problem with using branch operand reg. as temp. reg. when
spilling values used by an instruction in the delay slot of the branch
(which will eventually be moved before the branch).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7385 91177308-0d34-0410-b5e6-96231b3b80d8
Single and FP double reg types (which share the same reg class).
Now all methods marking/finding unused regs consider the regType
within the reg class, and SparcFloatRegClass specializes this code.
(2) Remove machine-specific regalloc. methods that are no longer needed.
In particular, arguments and return value from a call do not need
machine-specific code for allocation.
(3) Rename TargetRegInfo::getRegType variants to avoid unintentional
overloading when an include file is omitted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7334 91177308-0d34-0410-b5e6-96231b3b80d8
causing a nasty array bound error later.
2. Fix silly typo causing logical shift of unsigned long to use
SRL instead of SRLX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7330 91177308-0d34-0410-b5e6-96231b3b80d8
info (since multiple reg types may share the same reg class).
(2) Remove machine-specific regalloc. methods that are no longer needed.
In particular, arguments and return value from a call do not need
machine-specific code for allocation.
(3) Rename TargetRegInfo::getRegType variants to avoid unintentional
overloading when an include file is omitted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7329 91177308-0d34-0410-b5e6-96231b3b80d8
found to consider regType info (since multiple reg types may share
the same reg class, e.g., single and double on Sparc).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7327 91177308-0d34-0410-b5e6-96231b3b80d8
SlotCalculator in CWriter. (Unfortunately, all this means a lot of
X86/Printer's methods have to be de-constified again. Oh well.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7299 91177308-0d34-0410-b5e6-96231b3b80d8
