registers are global, are NOT windowed, and hence can be clobbered!
* Removed unused register shorthand notations
* Fixed and cleaned up comments in inline assembly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7853 91177308-0d34-0410-b5e6-96231b3b80d8
another delayed instr. would cause the later sanity-check (assertion)
in PhyRegAlloc.cpp to fail, even though there is really no error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7848 91177308-0d34-0410-b5e6-96231b3b80d8
addPassesToEmitMachineCode now both take a FunctionPassManager.
Factory methods for function passes now return type FunctionPass *.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7835 91177308-0d34-0410-b5e6-96231b3b80d8
we no longer need to find the live-before set of the delayed
branch since that set is now included the live-before/after
set of the instructions in each delay slot. Just assert that instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7796 91177308-0d34-0410-b5e6-96231b3b80d8
just PreSelection
* Wrapped code at 80 columns
* Added the DecomposeMultiDimRefs Pass to the JIT compilation path
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7657 91177308-0d34-0410-b5e6-96231b3b80d8
because saving i1 and i2 to their ``designated'' stack slots corrupts unknown
memory in other functions, standard libraries, and worse.
In addition, this has the benefit of improving JIT performance because we
eliminate writing out 4 instructions in CompilationCallback() and 2 loads and 2
stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7653 91177308-0d34-0410-b5e6-96231b3b80d8
2. Handle fp-to-uint conversions directly here instead of relying on
a pre-transformation to replace them with the 2-step conversion.
3. Use size rather than explicitly checking types when deciding what
opcodes to use, wherever possible. This is less error prone (the
bug fix above was not the first time!).
4. Float-to-pointer casts shd now work though this hasn't been tested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7645 91177308-0d34-0410-b5e6-96231b3b80d8
this is not an optional transformation on SPARC and is now handled
directly by instruction selection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7644 91177308-0d34-0410-b5e6-96231b3b80d8
* Doxygen-ified comments
* Added capability to make far calls (i.e., beyond 30 bits in CALL instr)
which implies that we need to delete function references that were added by
the call to addFunctionReference() because the actual call instruction is 10
instructions away (thanks to 64-bit address construction)
* Cleaned up code that generates far jumps by using an array+loop
SparcV9CodeEmitter.h:
* Explained more of the side-effects of emitFarCall()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7639 91177308-0d34-0410-b5e6-96231b3b80d8
Note that some generated operators (like &, | or ^) may
not be supported by the assembler -- but if they've got
this far, it's better to generate them and let the assembler decide.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7476 91177308-0d34-0410-b5e6-96231b3b80d8
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
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
