Commit Graph

166 Commits

Author SHA1 Message Date
Matt Arsenault 17d4ac8c46 Fix confusing machine verifier error.
The error reported the number of explicit operands,
but that isn't what is checked. In my case, this
resulted in the confusing errors

"Too few operands." followed shortly by
"8 operands expected, but 8 given."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194862 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 22:18:19 +00:00
Pedro Artigas d900b11795 increase the accuracy of register pressure computation in the presence of dead definitions by using live intervals, if available, to identify dead definitions and proceed accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194286 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-08 22:46:28 +00:00
Matthias Braun 03d9609c61 Print register in LiveInterval::print()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192398 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 21:29:05 +00:00
Matthias Braun 4f3b5e8c92 Represent RegUnit liveness with LiveRange instance
Previously LiveInterval has been used, but having a spill weight and
register number is unnecessary for a register unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192397 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 21:29:02 +00:00
Matthias Braun a4aed9ae39 Change MachineVerifier to work on LiveRange + LiveInterval
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192395 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 21:28:54 +00:00
Matthias Braun 5649e25ce8 Pass LiveQueryResult by value
This makes the API a bit more natural to use and makes it easier to make
LiveRanges implementation details private.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192394 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 21:28:52 +00:00
Matthias Braun 331de11a0a Rename LiveRange to LiveInterval::Segment
The Segment struct contains a single interval; multiple instances of this struct
are used to construct a live range, but the struct is not a live range by
itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192392 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 21:28:43 +00:00
Matthias Braun b38d9877f4 Fix indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191965 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-04 16:53:00 +00:00
Rafael Espindola c1b49b56d4 Add a wrapper for open.
This centralizes the handling of O_BINARY and opens the way for hiding more
differences (like how open behaves with directories).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186447 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-16 19:44:17 +00:00
Manman Ren 7310b75c8b Machine Verifier: verify FrameSetup and FrameDestroy
1> on every path through the CFG, a FrameSetup <n> is always followed by a
   FrameDestroy <n> and a FrameDestroy is always followed by a FrameSetup.
2> stack adjustments are identical on all CFG edges to a merge point.
3> frame is destroyed at end of a return block.

PR16393


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186350 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-15 21:26:31 +00:00
Chad Rosier 62c320a755 Simplify logic now that r182490 is in place. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182531 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 23:17:36 +00:00
Jakob Stoklund Olesen a58d67af29 Add an MRI::verifyUseLists() function.
This checks the sanity of the register use lists in the MI intermediate
representation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179895 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-19 21:40:57 +00:00
Chandler Carruth 0b8c9a80f2 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02 11:36:10 +00:00
Dmitri Gribenko 344df79cc0 Add a missing 'else'. Found by grep '} if'
No testcase because it is apparently not so trivial to construct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170595 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19 22:13:01 +00:00
Jakob Stoklund Olesen 9466bdebb7 Verify bundle flags for consistency in MachineVerifier.
The new bidirectional bundle flags are redundant, so inadvertent bundle
tearing can be detected in the machine code verifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-18 22:55:07 +00:00
Chandler Carruth d04a8d4b33 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. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03 16:50:05 +00:00
Chad Rosier 3d71688476 [inline asm] Implement mayLoad and mayStore for inline assembly. In general,
the MachineInstr MayLoad/MayLoad flags are based on the tablegen implementation.
For inline assembly, however, we need to compute these based on the constraints.

Revert r166929 as this is no longer needed, but leave the test case in place. 
rdar://12033048 and PR13504

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167040 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30 19:11:54 +00:00
Jakob Stoklund Olesen feab72c20a Remove unused BitVectors from getAllocatableSet().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165999 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16 00:05:06 +00:00
Jakob Stoklund Olesen fb9ebbf236 Switch most getReservedRegs() clients to the MRI equivalent.
Using the cached bit vector in MRI avoids comstantly allocating and
recomputing the reserved register bit vector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165983 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15 21:57:41 +00:00
Roman Divacky 5932429765 Stop casting away const qualifier needlessly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163258 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 22:26:57 +00:00
Jakob Stoklund Olesen daddf07497 Move tie checks into MachineVerifier::visitMachineOperand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163152 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04 18:38:28 +00:00
Jakob Stoklund Olesen 90a4f78d3b Verify the consistency of inline asm operands.
The operands on an INLINEASM machine instruction are divided into groups
headed by immediate flag operands. Verify this structure.

Extract verifyTiedOperands(), and only call it for non-inlineasm
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29 18:11:05 +00:00
Jakob Stoklund Olesen ca71c5debe Verify the tied operand flags.
WHen running with -verify-machineinstrs, check that tied operands come
in matching use/def pairs, and that they are consistent with MCInstrDesc
when it applies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162816 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29 00:38:03 +00:00
Craig Topper 96601ca332 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162347 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22 06:07:19 +00:00
Jakob Stoklund Olesen e7fdef420d Don't add CFG edges for redundant conditional branches.
IR that hasn't been through SimplifyCFG can look like this:

  br i1 %b, label %r, label %r

Make sure we don't create duplicate Machine CFG edges in this case.

Fix the machine code verifier to accept conditional branches with a
single CFG edge.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162230 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-20 21:39:52 +00:00