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147 Commits

Author SHA1 Message Date
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
Jakob Stoklund Olesen b254c6d77a Add CFG checks to MachineVerifier. 
Verify that the predecessor and successor lists are consistent and free
of duplicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162223 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-20 20:52:06 +00:00
Richard Smith 11a4fa4523 Fix undefined behavior: don't perform array indexing through a potentially null 
pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161919 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-15 01:39:31 +00:00
Jakob Stoklund Olesen 804468916a 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161183 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-02 16:36:50 +00:00
Jakob Stoklund Olesen 79240f9539 Add report() functions that take a LiveInterval argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161178 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-02 14:31:49 +00:00
Jakob Stoklund Olesen e5c79a5c25 Extract some methods from verifyLiveIntervals. 
No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161149 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-02 00:20:20 +00:00
Jakob Stoklund Olesen a62e1e8bc6 Also verify RegUnit intervals at uses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161147 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-01 23:52:40 +00:00
Jakob Stoklund Olesen eba2bbb58c Verify two-address constraints more carefully. 
Include <undef> operands and virtual registers after leaving SSA form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160734 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-25 16:49:11 +00:00
Pete Cooper b97c57a8b7 Fix crash in machine verifier when trying to print the def of a register which has no def 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160531 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-19 23:40:38 +00:00
Bill Wendling 96cb112852 Remove tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160475 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-19 00:04:14 +00:00
Jakob Stoklund Olesen bb0721680c 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."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159460 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-29 21:00:00 +00:00
Jakob Stoklund Olesen a4e6397fd9 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159150 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-25 18:18:27 +00:00
Jakob Stoklund Olesen f935e945c0 Also verify the def index for early clobbers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159039 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-22 22:23:58 +00:00
Jakob Stoklund Olesen 12a7be9ba4 Fix some more LiveInterval enumerations. 
Deterministically enumerate the virtual registers instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158872 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-20 23:23:59 +00:00
Akira Hatanaka 6b0cd9b9c6 Make machine verifier check the first instruction of the last bundle instead of 
the last instruction of a basic block.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158468 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 20:51:13 +00:00
Pete Cooper 83569cb062 Move terminator machine verification to check MachineBasicBlock::instr_iterator instead of MBB::iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158154 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-07 17:41:39 +00:00
Jakob Stoklund Olesen 1f9c3ec831 Properly verify liveness with bundled machine instructions. 
Bundles should be treated as one atomic transaction when checking
liveness. That is how the register allocator (and VLIW targets) treats
bundles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158116 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-06 22:34:30 +00:00
Jakob Stoklund Olesen 396618b43a Switch all register list clients to the new MC*Iterator interface. 
No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157854 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-01 23:28:30 +00:00
Evan Cheng cac58aa80e Optional def can be either a def or a use (of reg0). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157640 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-29 19:40:44 +00:00
Jakob Stoklund Olesen e3da8c6286 Fix a verifier bug. 
Make sure useless (def-only) intervals also get verified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157000 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-17 18:32:40 +00:00