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153 Commits

Author SHA1 Message Date
Dmitri Gribenko 349d1a35ff Add a missing 'else'. Found by grep '} if' 
No testcase because it is apparently not so trivial to construct.

llvm-svn: 170595
 2012-12-19 22:13:01 +00:00
Jakob Stoklund Olesen 29c277197e 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.

llvm-svn: 170463
 2012-12-18 22:55:07 +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
Chad Rosier 9e1274fb48 [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

llvm-svn: 167040
 2012-10-30 19:11:54 +00:00
Jakob Stoklund Olesen 244beb42ce Remove unused BitVectors from getAllocatableSet(). 
llvm-svn: 165999
 2012-10-16 00:05:06 +00:00
Jakob Stoklund Olesen c30a9af2d7 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.

llvm-svn: 165983
 2012-10-15 21:57:41 +00:00
Roman Divacky ad06cee239 Stop casting away const qualifier needlessly. 
llvm-svn: 163258
 2012-09-05 22:26:57 +00:00
Jakob Stoklund Olesen c7579cdded Move tie checks into MachineVerifier::visitMachineOperand. 
llvm-svn: 163152
 2012-09-04 18:38:28 +00:00
Jakob Stoklund Olesen 7a837b9a76 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.

llvm-svn: 162849
 2012-08-29 18:11:05 +00:00
Jakob Stoklund Olesen dbbff7899d 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.

llvm-svn: 162816
 2012-08-29 00:38:03 +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 7d33c5739f 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.

llvm-svn: 162230
 2012-08-20 21:39:52 +00:00
Jakob Stoklund Olesen de31b52c3e Add CFG checks to MachineVerifier. 
Verify that the predecessor and successor lists are consistent and free
of duplicates.

llvm-svn: 162223
 2012-08-20 20:52:06 +00:00
Richard Smith 8f3447c032 Fix undefined behavior: don't perform array indexing through a potentially null 
pointer.

llvm-svn: 161919
 2012-08-15 01:39:31 +00:00
Jakob Stoklund Olesen 637c467528 Verify regunit intervals along with virtreg intervals. 
Don't cause regunit intervals to be computed just to verify them. Only
check the already cached intervals.

llvm-svn: 161183
 2012-08-02 16:36:50 +00:00
Jakob Stoklund Olesen bde5dc5e46 Add report() functions that take a LiveInterval argument. 
llvm-svn: 161178
 2012-08-02 14:31:49 +00:00
Jakob Stoklund Olesen e736b97eff Extract some methods from verifyLiveIntervals. 
No functional change.

llvm-svn: 161149
 2012-08-02 00:20:20 +00:00
Jakob Stoklund Olesen a766b4746d Also verify RegUnit intervals at uses. 
llvm-svn: 161147
 2012-08-01 23:52:40 +00:00
Jakob Stoklund Olesen c6fd3deee6 Verify two-address constraints more carefully. 
Include <undef> operands and virtual registers after leaving SSA form.

llvm-svn: 160734
 2012-07-25 16:49:11 +00:00
Pete Cooper dcf94db677 Fix crash in machine verifier when trying to print the def of a register which has no def 
llvm-svn: 160531
 2012-07-19 23:40:38 +00:00
Bill Wendling d163405df8 Remove tabs. 
llvm-svn: 160475
 2012-07-19 00:04:14 +00:00
Jakob Stoklund Olesen da9ea1d6bc Check for extra kill flags on live-out virtual registers. 
This would previously get reported as the misleading "Virtual register
def doesn't dominate all uses."

llvm-svn: 159460
 2012-06-29 21:00:00 +00:00
Jakob Stoklund Olesen a57fc12ec9 Enforce stricter liveness rules for PHIs. 
Verify that all paths from the entry block to a virtual register read
pass through a def. Enable this check even when MRI->isSSA() is false.

Verify that the live range of a virtual register is live out of all
predecessor blocks, even for PHI-values.

This requires that PHIElimination sometimes inserts IMPLICIT_DEF
instruction in predecessor blocks.

llvm-svn: 159150
 2012-06-25 18:18:27 +00:00
Jakob Stoklund Olesen b033dede17 Also verify the def index for early clobbers. 
llvm-svn: 159039
 2012-06-22 22:23:58 +00:00
Jakob Stoklund Olesen 781e0b9fd7 Fix some more LiveInterval enumerations. 
Deterministically enumerate the virtual registers instead.

llvm-svn: 158872
 2012-06-20 23:23:59 +00:00