Commit Graph

13 Commits

Author SHA1 Message Date
Lang Hames 4309020200 Re-apply r175688, with the changes suggested by Jakob in PR15320.
llvm-svn: 175809
2013-02-21 22:16:43 +00:00
Lang Hames 071890b554 Revert r175688 - It broke a test case (see PR15320).
llvm-svn: 175765
2013-02-21 17:01:59 +00:00
Lang Hames 24e3759230 Kill of TransferDeadFlag - Dead copies and subreg-to-reg instructions should
just be turned into kills on the spot.

llvm-svn: 175688
2013-02-20 23:36:57 +00:00
Chandler Carruth ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
David Blaikie c8c2920a3f Tidy up a few more uses of MF.getFunction()->getName().
Based on CR feedback from r162301 and Craig Topper's refactoring in r162347
here are a few other places that could use the same API (& in one instance drop
a Function.h dependency).

llvm-svn: 162367
2012-08-22 17:18:53 +00:00
Craig Topper a538d831e6 Add a getName function to MachineFunction. Use it in places that previously did getFunction()->getName(). Remove includes of Function.h that are no longer needed.
llvm-svn: 162347
2012-08-22 06:07:19 +00:00
Jakob Stoklund Olesen bc65e8f94e Add <imp-def> of super-register when lowering SUBREG_TO_REG.
Patch by Tyler Nowicki!

llvm-svn: 160888
2012-07-27 20:19:49 +00:00
Andrew Trick 1fa5bcbe2a Codegen pass definition cleanup. No functionality.
Moving toward a uniform style of pass definition to allow easier target configuration.
Globally declare Pass ID.
Globally declare pass initializer.
Use INITIALIZE_PASS consistently.
Add a call to the initializer from CodeGen.cpp.
Remove redundant "createPass" functions and "getPassName" methods.

While cleaning up declarations, cleaned up comments (sorry for large diff).

llvm-svn: 150100
2012-02-08 21:23:13 +00:00
Evan Cheng 7f8e563a69 Add bundle aware API for querying instruction properties and switch the code
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.

For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.

llvm-svn: 146026
2011-12-07 07:15:52 +00:00
Jakob Stoklund Olesen add0c43ebb Give targets a chance to expand even standard pseudos.
Allow targets to expand COPY and other standard pseudo-instructions
before they are expanded with copyPhysReg().

This allows the target to examine the COPY instruction for extra
operands indicating it can be widened to a preferable super-register
copy.  See the ARM -widen-vmovs option.

llvm-svn: 141578
2011-10-10 20:34:28 +00:00
Jakob Stoklund Olesen df977fedb6 Add target hook for pseudo instruction expansion.
Many targets use pseudo instructions to help register allocation.  Like
the COPY instruction, these pseudos can be expanded after register
allocation.  The early expansion can make life easier for PEI and the
post-ra scheduler.

This patch adds a hook that is called for all remaining pseudo
instructions from the ExpandPostRAPseudos pass.

llvm-svn: 140472
2011-09-25 19:21:35 +00:00
Jakob Stoklund Olesen fd719d184e Clean up code after renaming LowerSubregs -> ExpandPostRAPseudos.
No functional change intended.

llvm-svn: 140470
2011-09-25 16:46:08 +00:00
Jakob Stoklund Olesen f152df1e6b Rename LowerSubregs to ExpandPostRAPseudos.
I'll fix the file contents in the next commit.

This pass is currently expanding the COPY and SUBREG_TO_REG pseudos. I
am going to add a hook so targets can expand more pseudo-instructions
after register allocation.

Many targets have pseudo-instructions that assist the register
allocator.  They can be expanded after register allocation, before PEI
and PostRA scheduling.

llvm-svn: 140469
2011-09-25 16:46:00 +00:00