Chris Lattner
0808f5daa5
Implement negation of longs efficiently. For this testcase:
...
long %test(long %X) {
%Y = sub long 0, %X
ret long %Y
}
We used to generate:
test:
sub %ESP, 4
mov DWORD PTR [%ESP], %ESI
mov %ECX, DWORD PTR [%ESP + 8]
mov %ESI, DWORD PTR [%ESP + 12]
mov %EAX, 0
mov %EDX, 0
sub %EAX, %ECX
sbb %EDX, %ESI
mov %ESI, DWORD PTR [%ESP]
add %ESP, 4
ret
Now we generate:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %EDX, DWORD PTR [%ESP + 8]
neg %EAX
adc %EDX, 0
neg %EDX
ret
llvm-svn: 12681
2004-04-06 01:48:06 +00:00
Chris Lattner
56dcdcf638
Minor tweak to avoid an extra reg-reg copy that the register allocator has to eliminate
...
llvm-svn: 12680
2004-04-06 01:25:33 +00:00
Chris Lattner
42cf317fca
Two changes:
...
* In promote32, if we can just promote a constant value, do so instead of
promoting a constant dynamically.
* In visitReturn inst, actually USE the promote32 argument that takes a
Value*
The end result of this is that we now generate this:
test:
mov %EAX, 0
ret
instead of...
test:
mov %AX, 0
movzx %EAX, %AX
ret
for:
ushort %test() {
ret ushort 0
}
llvm-svn: 12679
2004-04-06 01:21:00 +00:00
Chris Lattner
a2ecf0cf75
lli no longer takes the -quiet option!
...
llvm-svn: 12674
2004-04-05 20:28:41 +00:00
Chris Lattner
d154cb1717
Do not mangle intrinsics in any way!
...
llvm-svn: 12673
2004-04-05 20:17:53 +00:00
Chris Lattner
fb8a43c586
Sparc don't got not "sqrtl", bum bum bum
...
llvm-svn: 12670
2004-04-05 19:05:15 +00:00
Misha Brukman
21355cfcba
Kill warnings during an optimized compile where assert() disappears.
...
llvm-svn: 12669
2004-04-05 19:00:46 +00:00
Chris Lattner
8b61b8c936
Fix PR312 and IndVarsSimplify/2004-04-05-InvokeCastCrash.llx
...
llvm-svn: 12668
2004-04-05 18:46:55 +00:00
Chris Lattner
c92af54ed5
Fix a bug in yesterdays checkins which broke siod. siod is a great testcase! :)
...
llvm-svn: 12659
2004-04-05 16:02:41 +00:00
Chris Lattner
6c961339a3
Fix InstCombine/2004-04-04-InstCombineReplaceAllUsesWith.ll
...
llvm-svn: 12658
2004-04-05 02:10:19 +00:00
Chris Lattner
9236135e8f
Support getelementptr instructions which use uint's to index into structure
...
types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.
llvm-svn: 12653
2004-04-05 01:30:19 +00:00
Chris Lattner
f78d930837
Support getelementptr instructions which use uint's to index into structure
...
types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.
Auto-upgrade .ll files that use ubytes to index into structures to use uint's.
llvm-svn: 12652
2004-04-05 01:30:04 +00:00
Chris Lattner
ada730740b
Implement support for a new LLVM 1.3 bytecode format, which uses uint's
...
to index into structure types and allows arbitrary 32- and 64-bit integer
types to index into sequential types.
llvm-svn: 12651
2004-04-05 01:27:26 +00:00
Chris Lattner
eb1caeca2a
Add ConstantExpr::get(Sign|Zero)Extend methods
...
llvm-svn: 12648
2004-04-04 23:20:30 +00:00
Chris Lattner
c69fd63e82
In the perhaps not-to-distant future, we might support gep instructions that
...
have non-long indices for sequential types. In order to avoid trying to figure
out how the v9 backend works, we'll just hack it in the preselection pass.
llvm-svn: 12647
2004-04-04 20:44:05 +00:00
Chris Lattner
27dff42330
Adjust to new interface
...
llvm-svn: 12646
2004-04-04 19:47:06 +00:00
Chris Lattner
5c053bfa99
Adjust to new gep_type_iterator prototypes.
...
llvm-svn: 12644
2004-04-04 17:30:06 +00:00
Chris Lattner
b25ac02112
Remove a bunch of cruft that was used to be backwards compatible with the last
...
prerelease format for LLVM bytecode files. Now we only are compatible with
LLVM 1.0+.
llvm-svn: 12643
2004-04-03 23:43:42 +00:00
Chris Lattner
3ccb7f2275
Implement test/Regression/Transforms/GCSE/undefined_load.ll
...
llvm-svn: 12641
2004-04-03 00:45:16 +00:00
Chris Lattner
0329ff0b87
Add a break in the default case
...
llvm-svn: 12639
2004-04-03 00:43:03 +00:00
Brian Gaeke
017eb9caf3
Add autoconf support for isStandardOutAConsole ().
...
llvm-svn: 12638
2004-04-02 21:26:04 +00:00
Chris Lattner
409ef7935c
Remove obsolete files
...
llvm-svn: 12633
2004-04-02 20:56:24 +00:00
Brian Gaeke
dec12ea71d
Add support for many of the MRegisterInfo callbacks.
...
Eliminating call-frame pseudo instrs and frame indices are still stubs.
Flesh out the emitPrologue method based on better ABI knowledge.
llvm-svn: 12632
2004-04-02 20:53:37 +00:00
Brian Gaeke
b2d36cced3
Add load, store, and NOP instructions.
...
Fix up comments.
llvm-svn: 12631
2004-04-02 20:53:37 +00:00
Brian Gaeke
741518f9f6
Add support for printing pc-relative displacements of functions (as used in
...
the CALL instruction).
llvm-svn: 12630
2004-04-02 20:53:35 +00:00
Brian Gaeke
10ab592570
Add support for call instructions (0-ary only for now).
...
llvm-svn: 12629
2004-04-02 20:53:33 +00:00
Chris Lattner
0a34ab8221
Comment out debugging printouts
...
llvm-svn: 12623
2004-04-02 20:26:46 +00:00
Chris Lattner
cf5bd8a9ab
Rewrite the indvars pass to use the ScalarEvolution analysis.
...
This also implements some new features for the indvars pass, including
linear function test replacement, exit value substitution, and it works with
a much more general class of induction variables and loops.
llvm-svn: 12620
2004-04-02 20:24:31 +00:00
Chris Lattner
74911ffd6b
Add a new analysis
...
llvm-svn: 12619
2004-04-02 20:23:17 +00:00
Chris Lattner
3f202e3a54
Fix the obvious bug in my previous checkin
...
llvm-svn: 12618
2004-04-02 18:15:10 +00:00
Chris Lattner
bca948c99d
Implement Transforms/SimplifyCFG/return-merge.ll
...
This actually causes us to turn code like:
return C ? A : B;
into a select instruction.
llvm-svn: 12617
2004-04-02 18:13:43 +00:00
Alkis Evlogimenos
27ed33c309
Clean up code a bit.
...
llvm-svn: 12615
2004-04-02 18:11:32 +00:00
Brian Gaeke
73afcebba1
Only strip symbols if emitting bytecode to the assembly file.
...
Move lowerselect pass to come after preselection. Move machine
code construction and stack slots pass to come right before instruction
selection. This is to help fix perlbmk.
Update comments.
Make the sequence of passes in addPassesToJITCompile look more like
the sequence of passes in addPassesToEmitAssembly, including support
for -print-machineinstrs.
llvm-svn: 12614
2004-04-02 17:52:40 +00:00
Brian Gaeke
3fb4f87195
Add support for constant select expressions. Clarify the assertion failure msg.
...
llvm-svn: 12613
2004-04-02 17:52:29 +00:00
Alkis Evlogimenos
85e007a6dc
Fix type in comments
...
llvm-svn: 12611
2004-04-02 16:02:50 +00:00
Alkis Evlogimenos
84ee10f9e1
Fix type in instruction builder instantiation
...
llvm-svn: 12610
2004-04-02 15:51:03 +00:00
Chris Lattner
0d20ff2e86
Make the verifier API more complete and useful.
...
Patch contributed by Reid Spencer
llvm-svn: 12609
2004-04-02 15:45:08 +00:00
Alkis Evlogimenos
20b074682c
Add more ADC and SBB variants
...
llvm-svn: 12607
2004-04-02 07:11:10 +00:00
Chris Lattner
2ef79bf28a
Add new function, autoconf support required tho
...
llvm-svn: 12600
2004-04-02 05:04:03 +00:00
Chris Lattner
973cb73b4f
Fix PR310 and TailDup/2004-04-01-DemoteRegToStack.llx
...
llvm-svn: 12597
2004-04-01 20:28:45 +00:00
Chris Lattner
441ab4b903
Remove some assertions that are now bogus with the last patch I put in
...
llvm-svn: 12595
2004-04-01 19:21:46 +00:00
Chris Lattner
eda638b0be
Fix PR306: Loop simplify incorrectly updates dominator information
...
Testcase: LoopSimplify/2004-04-01-IncorrectDomUpdate.ll
llvm-svn: 12592
2004-04-01 19:06:07 +00:00
Chris Lattner
ef90bac3e3
Add support for select constant expressions to the CBE, fixing SIOD
...
llvm-svn: 12589
2004-04-01 05:28:26 +00:00
Chris Lattner
b6e4e5a95e
Simplify code by using the more powerful BuildMI forms.
...
Implement a small optimization. In test/Regression/CodeGen/X86/select.ll,
we now generate this for foldSel3:
foldSel3:
mov %AL, BYTE PTR [%ESP + 4]
fld DWORD PTR [%ESP + 8]
fld DWORD PTR [%ESP + 12]
mov %EAX, DWORD PTR [%ESP + 16]
mov %ECX, DWORD PTR [%ESP + 20]
cmp %EAX, %ECX
fxch %ST(1)
fcmovae %ST(0), %ST(1)
*** fstp %ST(1)
ret
Instead of:
foldSel3:
mov %AL, BYTE PTR [%ESP + 4]
fld DWORD PTR [%ESP + 8]
fld DWORD PTR [%ESP + 12]
mov %EAX, DWORD PTR [%ESP + 16]
mov %ECX, DWORD PTR [%ESP + 20]
cmp %EAX, %ECX
fxch %ST(1)
fcmovae %ST(0), %ST(1)
*** fxch %ST(1)
*** fstp %ST(0)
ret
In practice, this only effects code size: performance should be basically
unaffected.
llvm-svn: 12588
2004-04-01 04:06:09 +00:00
Chris Lattner
78027ca4ff
Wrap at 80 cols
...
llvm-svn: 12587
2004-04-01 04:03:27 +00:00
Chris Lattner
2e0755a058
Generate slightly smaller code, "test R, R" instead of "cmp R, 0"
...
llvm-svn: 12579
2004-03-31 22:22:36 +00:00
Chris Lattner
97e8b80649
The X86 backend no longer needs the select lowering pass.
...
llvm-svn: 12578
2004-03-31 22:03:46 +00:00
Chris Lattner
e5d60adc20
Codegen FP select instructions into X86 conditional moves. Annoyingly enough
...
the X86 does not support a full set of fp cmove instructions, so we can't always
fold the condition into the select. :( Yuck.
llvm-svn: 12577
2004-03-31 22:03:35 +00:00
Chris Lattner
d50df93168
Add support for floating point conditional move instructions
...
llvm-svn: 12576
2004-03-31 22:02:36 +00:00
Chris Lattner
4d543b4201
Add support for FP cmoves
...
llvm-svn: 12575
2004-03-31 22:02:21 +00:00
Chris Lattner
e4fa3010db
Add FP conditional move instructions, which annoyingly have special properties
...
that require the asmwriter to be extended (printing implicit uses before the
explicit operands)
llvm-svn: 12574
2004-03-31 22:02:13 +00:00
Chris Lattner
6aaea5f86b
Add warning
...
llvm-svn: 12573
2004-03-31 22:00:30 +00:00
Chris Lattner
bfe4dd0f90
MBB::remove should not modify the iterator passed in
...
llvm-svn: 12572
2004-03-31 21:59:59 +00:00
Chris Lattner
2cc4a29665
MachineBasicBlock::remove should not modify the iterator passed in
...
llvm-svn: 12571
2004-03-31 21:59:29 +00:00
Brian Gaeke
98c323dedd
Factor out getStaticStackSize from InsertPrologCode(), so that I can more
...
easily steal it for a separate use in the reoptimizer.
llvm-svn: 12568
2004-03-31 20:58:37 +00:00
Brian Gaeke
4ca49f84ba
Use the true, decoded name of the archive member in getObjectType.
...
In ReadArchiveBuffer, make sure that MemberName is set in the case where
getObjectType would want to return SVR4LongFilename.
llvm-svn: 12567
2004-03-31 19:51:00 +00:00
Chris Lattner
6ea8b0176c
Avoid TRUE and FALSE which apparently conflict with some macros on OSX
...
llvm-svn: 12566
2004-03-31 03:49:47 +00:00
Chris Lattner
1c0ddbfb7d
Fix linking of constant expr casts due to type resolution changes. With
...
this and the other patches 253.perlbmk links again.
llvm-svn: 12565
2004-03-31 02:58:28 +00:00
Chris Lattner
5a789b5e06
Add support for constant expr casts
...
llvm-svn: 12564
2004-03-31 02:56:11 +00:00
Chris Lattner
b9cadcfcd9
Add support for reading constantexpr select instructions
...
llvm-svn: 12563
2004-03-31 02:53:59 +00:00
Chris Lattner
1d78eb6094
Fix a latent bug in select constantexpr handling that was broke 253.perlbmk
...
llvm-svn: 12562
2004-03-30 22:51:03 +00:00
Alkis Evlogimenos
45cb0b871d
Correctly update LiveVariables when an instruction changes
...
llvm-svn: 12561
2004-03-30 22:44:39 +00:00
Chris Lattner
f477746a61
Fold comparisons into select instructions, making much better code and
...
using our broad selection of movcc instructions. :)
llvm-svn: 12560
2004-03-30 22:39:09 +00:00
Chris Lattner
6c1dd729d3
Implement spill code folding for all of the conditional move instructions
...
llvm-svn: 12554
2004-03-30 21:29:47 +00:00
Chris Lattner
ff016bd6fe
Add direct support for integer select instructions, though we still don't support
...
folding compares into the select yet.
llvm-svn: 12553
2004-03-30 21:22:00 +00:00
Chris Lattner
d265077f6d
Fix bug: Assembler/2004-03-30-UnclosedFunctionCrash.llx
...
llvm-svn: 12551
2004-03-30 20:58:25 +00:00
Chris Lattner
57968a98df
Fix some serious bugs in the cmov descriptions, which didn't cause a problem because
...
we never generated them
Make indentation a bit more consistent
llvm-svn: 12549
2004-03-30 20:18:02 +00:00
Brian Gaeke
59c80cfd05
Start cleaning up this pass so that I can debug it.
...
llvm-svn: 12548
2004-03-30 19:53:46 +00:00
Chris Lattner
145aea5c4c
Now that all the code generators support the select instruction, and the instcombine
...
pass can eliminate many nasty cases of them, start generating them in the optimizers
llvm-svn: 12545
2004-03-30 19:44:05 +00:00
Chris Lattner
b6612acb18
Implement select.ll:test[3-6]
...
llvm-svn: 12544
2004-03-30 19:37:13 +00:00
Chris Lattner
95942c021a
Fix a fairly major performance problem. If a PHI node had a constant as
...
an incoming value from a block, the selector would evaluate the constant
at the TOP of the block instead of at the end of the block. This made the
live range for the constant span the entire block, increasing register
pressure needlessly.
llvm-svn: 12542
2004-03-30 19:10:12 +00:00
Chris Lattner
87479998f2
Add the select lowering pass to get initial support for select instructions
...
llvm-svn: 12541
2004-03-30 18:41:59 +00:00
Chris Lattner
58a6a4d57a
Add a simple select instruction lowering pass
...
llvm-svn: 12540
2004-03-30 18:41:10 +00:00
Chris Lattner
e78381e9f1
Add some new methods
...
llvm-svn: 12539
2004-03-30 00:20:08 +00:00
Brian Gaeke
610cfaa7fd
Don't warn about a null live range if the Value is a ConstantIntegral.
...
Otherwise, if you're in debugging mode, you get warnings for (apparently)
every immediate constant in the function during reg. allocation.
llvm-svn: 12538
2004-03-29 21:58:41 +00:00
Brian Gaeke
27be9eb265
Change how the beginnings and ends of MachineFunctions are printed. Get
...
rid of the funny cast.
llvm-svn: 12537
2004-03-29 21:58:31 +00:00
Chris Lattner
dd7ed2912e
Adjust to new itf
...
llvm-svn: 12534
2004-03-29 20:42:49 +00:00
Chris Lattner
50dc89f874
Handle -0.0 correctly
...
llvm-svn: 12530
2004-03-29 19:51:24 +00:00
Chris Lattner
7f5d56b43a
Add a bunch of methods that should have been added a long time ago.
...
llvm-svn: 12526
2004-03-29 02:37:53 +00:00
Chris Lattner
27cbe8d690
Add another check
...
llvm-svn: 12525
2004-03-29 00:29:36 +00:00
Chris Lattner
44acd09520
Fix an assertion
...
Contributed by Reid Spencer
llvm-svn: 12524
2004-03-29 00:17:20 +00:00
Chris Lattner
874db50b32
Make error message a bit nicer.
...
Contributed by Reid Spencer
llvm-svn: 12523
2004-03-29 00:16:01 +00:00
Chris Lattner
b34cfff038
Add two methods which have been needed for a long time: Type::get(Un)signedVersion
...
llvm-svn: 12522
2004-03-26 21:43:22 +00:00
Chris Lattner
d191e5625c
X % -1 == X % 1 == 0
...
llvm-svn: 12520
2004-03-26 16:11:24 +00:00
Chris Lattner
e15fb6ac61
Two changes:
...
#1 is to unconditionally strip constantpointerrefs out of
instruction operands where they are absolutely pointless and inhibit
optimization. GRRR!
#2 is to implement InstCombine/getelementptr_const.ll
llvm-svn: 12519
2004-03-25 22:59:29 +00:00
Chris Lattner
ecb0efb6e5
Minor efficiency improvement, finegrainify namespacification
...
llvm-svn: 12517
2004-03-25 22:56:03 +00:00
Chris Lattner
f3867b270c
Hrm, we were leaking ~1M of garbage that valgrind never told us about because
...
it was "reachable". Cute.
llvm-svn: 12515
2004-03-19 23:34:33 +00:00
Chris Lattner
078f97b50d
Teach the optimizer to delete zero sized alloca's (but not mallocs!)
...
llvm-svn: 12507
2004-03-19 06:08:10 +00:00
Chris Lattner
4e7ea3671c
Fix PR299: [Sparc] Code generator asserts on alloc of zero size type
...
llvm-svn: 12504
2004-03-19 04:21:43 +00:00
Chris Lattner
b8f179cb9b
Malloc doesn't kill a load. This patch need not go into 1.2 though.
...
llvm-svn: 12500
2004-03-18 17:01:26 +00:00
Chris Lattner
ef7c1e9f7f
Fix a really nasty bug that was breaking ijpeg in LLC mode. We were incorrectly
...
folding load instructions into other instructions across free instruction
boundaries. Perhaps this will also fix the other strange failures?
llvm-svn: 12494
2004-03-18 06:29:54 +00:00
Chris Lattner
0f0a253571
Fix bug: CodeExtractor/2004-03-17-MissedLiveIns.ll
...
With this fix we now successfully extract all 149 loops from 256.bzip2 without
crashing or miscompiling the program!
llvm-svn: 12493
2004-03-18 05:56:32 +00:00
Chris Lattner
521d687d11
Add statistics to the loop extractor. The loop extractor has successfully
...
extracted all 63 loops for Olden/bh without crashing and without
miscompiling the program!!!
llvm-svn: 12491
2004-03-18 05:46:10 +00:00
Chris Lattner
c835211d82
Fix problem with PHI nodes having multiple predecessors from different
...
exit nodes
llvm-svn: 12490
2004-03-18 05:43:18 +00:00
Chris Lattner
b1bc514730
Fix CodeExtractor/2004-03-17-UpdatePHIsOutsideRegion.ll
...
llvm-svn: 12489
2004-03-18 05:38:31 +00:00
Chris Lattner
69fdd9f14a
Seriously simplify and correct the PHI node handling code.
...
llvm-svn: 12487
2004-03-18 05:28:49 +00:00
Chris Lattner
345cf6f177
Fix CodeExtractor/2004-03-17-OutputMismatch.ll
...
llvm-svn: 12486
2004-03-18 04:12:05 +00:00
Chris Lattner
0d233c03fc
Fix several bugs in the extractor:
...
1. Names were not put on the new arguments created (ok, this just helps sanity :)
2. Fix outgoing pointer values
3. Do not insert stores for values that had not been computed
4. Fix some wierd problems with the outset calculation
This fixes CodeExtractor/2004-03-14-DominanceProblem.ll, making the extractor
work on at least one simple case!
llvm-svn: 12484
2004-03-18 03:49:40 +00:00
Chris Lattner
55114016ea
The code extractor needs dominator info. Provide it
...
llvm-svn: 12483
2004-03-18 03:48:06 +00:00
Chris Lattner
7c0d39dcd6
Prune #includes, moving the module interface to the front. Note that this
...
exposed the fact that the header was not self-contained. There is a reason
we do things :)
llvm-svn: 12481
2004-03-18 03:15:29 +00:00
Chris Lattner
c534fac018
Fix a HORRIBLY NASTY bug that caused siod to stop working last night.
...
llvm-svn: 12479
2004-03-17 23:22:04 +00:00
Chris Lattner
849234af99
Fix compilation of mesa, which I broke earlier today
...
llvm-svn: 12465
2004-03-17 02:02:47 +00:00
Chris Lattner
eccc0e01b2
Be more accurate
...
llvm-svn: 12464
2004-03-17 01:59:27 +00:00
Alkis Evlogimenos
81c6957eab
Make the set of fixed (preallocated) intervals be a fixed superset of
...
unhandled + handled. So unhandled is now including all fixed intervals
and fixed intervals never changes when processing a function.
llvm-svn: 12462
2004-03-17 00:48:59 +00:00
Chris Lattner
6fdcd7174b
Fix bug in previous checkin
...
llvm-svn: 12458
2004-03-16 23:36:49 +00:00
Chris Lattner
59342a757e
Okay, so there is no reasonable way for tail duplication to update SSA form,
...
as it is making effectively arbitrary modifications to the CFG and we don't
have a domset/domfrontier implementations that can handle the dynamic updates.
Instead of having a bunch of code that doesn't actually work in practice,
just demote any potentially tricky values to the stack (causing the problem
to go away entirely). Later invocations of mem2reg will rebuild SSA for us.
This fixes all of the major performance regressions with tail duplication
from LLVM 1.1. For example, this loop:
---
int popcount(int x) {
int result = 0;
while (x != 0) {
result = result + (x & 0x1);
x = x >> 1;
}
return result;
}
---
Used to be compiled into:
int %popcount(int %X) {
entry:
br label %loopentry
loopentry: ; preds = %entry, %no_exit
%x.0 = phi int [ %X, %entry ], [ %tmp.9, %no_exit ] ; <int> [#uses=3]
%result.1.0 = phi int [ 0, %entry ], [ %tmp.6, %no_exit ] ; <int> [#uses=2]
%tmp.1 = seteq int %x.0, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %loopexit, label %no_exit
no_exit: ; preds = %loopentry
%tmp.4 = and int %x.0, 1 ; <int> [#uses=1]
%tmp.6 = add int %tmp.4, %result.1.0 ; <int> [#uses=1]
%tmp.9 = shr int %x.0, ubyte 1 ; <int> [#uses=1]
br label %loopentry
loopexit: ; preds = %loopentry
ret int %result.1.0
}
And is now compiled into:
int %popcount(int %X) {
entry:
br label %no_exit
no_exit: ; preds = %entry, %no_exit
%x.0.0 = phi int [ %X, %entry ], [ %tmp.9, %no_exit ] ; <int> [#uses=2]
%result.1.0.0 = phi int [ 0, %entry ], [ %tmp.6, %no_exit ] ; <int> [#uses=1]
%tmp.4 = and int %x.0.0, 1 ; <int> [#uses=1]
%tmp.6 = add int %tmp.4, %result.1.0.0 ; <int> [#uses=2]
%tmp.9 = shr int %x.0.0, ubyte 1 ; <int> [#uses=2]
%tmp.1 = seteq int %tmp.9, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %loopexit, label %no_exit
loopexit: ; preds = %no_exit
ret int %tmp.6
}
llvm-svn: 12457
2004-03-16 23:29:09 +00:00
Chris Lattner
e04883605a
This code was both incredibly complex and incredibly broken. Fix it.
...
llvm-svn: 12456
2004-03-16 23:23:11 +00:00
Brian Gaeke
c1c4cfd741
The .type directive on Solaris uses the # character instead of @.
...
llvm-svn: 12454
2004-03-16 22:52:04 +00:00
Brian Gaeke
f97393aebf
Fix bug in zero-extending of shorts.
...
llvm-svn: 12453
2004-03-16 22:45:42 +00:00
Brian Gaeke
26deccbffb
Add UMULrr and SMULrr instructions.
...
llvm-svn: 12452
2004-03-16 22:37:13 +00:00
Brian Gaeke
fd02eeae64
Use ! for comment char; it works in both Solaris as and GAS.
...
llvm-svn: 12451
2004-03-16 22:37:12 +00:00
Brian Gaeke
199ba20b20
Make getClass more robust by adding cLong.
...
Add handling for Mul instruction.
llvm-svn: 12450
2004-03-16 22:37:11 +00:00
Chris Lattner
c260cfab09
Punt if we see gigantic PHI nodes. This improves a huge interpreter loop
...
testcase from 32.5s in -raise to take .3s
llvm-svn: 12443
2004-03-16 19:52:53 +00:00
Chris Lattner
dc22f37eb5
Do not try to optimize PHI nodes with incredibly high degree. This reduces SCCP
...
time from 615s to 1.49s on a large testcase that has a gigantic switch statement
that all of the blocks in the function go to (an intepreter).
llvm-svn: 12442
2004-03-16 19:49:59 +00:00
Chris Lattner
2175b35b46
Do not copy gigantic switch instructions
...
llvm-svn: 12441
2004-03-16 19:45:22 +00:00
Chris Lattner
686a74c7ac
Fix PR296: [execution engines] Unhandled cast constant expression
...
llvm-svn: 12435
2004-03-16 08:38:56 +00:00
Chris Lattner
9ae2b6acd7
Fix a regression from this patch:
...
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040308/013095.html
Basically, this patch only updated the immediate dominatees of the header node
to tell them that the preheader also dominated them. In practice, ALL
dominatees of the header node are also dominated by the preheader.
This fixes: LoopSimplify/2004-03-15-IncorrectDomUpdate.
and PR293
llvm-svn: 12434
2004-03-16 06:00:15 +00:00
Chris Lattner
c2eb0678d8
Add some missing functions. Make sure to handle calls together in case the
...
client has another VN implementation that can VN calls.
llvm-svn: 12427
2004-03-16 03:41:35 +00:00
Chris Lattner
5541c82383
Fix PR294
...
llvm-svn: 12425
2004-03-16 01:45:55 +00:00
Alkis Evlogimenos
6ac147a7fb
Add LAHF instruction
...
llvm-svn: 12424
2004-03-15 17:20:14 +00:00
Chris Lattner
b9c53cdb65
Restore old inlining heuristic. As the comment indicates, this is a nasty
...
horrible hack.
llvm-svn: 12423
2004-03-15 06:38:14 +00:00
Chris Lattner
19ce9dbb05
Ok, the assertion was bogus. Calls that do not read/write memory should not
...
have an alias set, just like adds and subtracts don't.
llvm-svn: 12422
2004-03-15 06:28:07 +00:00
Chris Lattner
5654b5de80
This assertion is bogus now that calls do not necessarily read/write memory
...
llvm-svn: 12421
2004-03-15 06:24:15 +00:00
Chris Lattner
d8905ad834
Add counters for the number of calls elimianted
...
llvm-svn: 12420
2004-03-15 05:46:59 +00:00
Chris Lattner
62771c4bef
Implement CSE of call instructions in the most trivial case. This implements
...
GCSE/call_cse.ll
llvm-svn: 12419
2004-03-15 05:44:59 +00:00
Chris Lattner
cd227e5bdb
Fix a minor bug, implementing GCSE/call_pure_function.ll
...
Also, add some stuff I missed before.
llvm-svn: 12417
2004-03-15 04:18:28 +00:00
Chris Lattner
8a82176edc
Implement LICM of calls in simple cases. This is sufficient to move around
...
sin/cos/strlen calls and stuff. This implements:
LICM/call_sink_pure_function.ll
LICM/call_sink_const_function.ll
llvm-svn: 12415
2004-03-15 04:11:30 +00:00
Chris Lattner
b0cf0f89be
Don't be COMPLETELY pessimistic in the face of function calls
...
llvm-svn: 12413
2004-03-15 04:08:36 +00:00
Chris Lattner
cb99b04ead
Deinline some virtual methods, provide better mod/ref answers through the
...
use of the boolean queries
llvm-svn: 12410
2004-03-15 04:07:29 +00:00
Chris Lattner
60c61e337a
Pass through the boolean queries
...
llvm-svn: 12409
2004-03-15 04:06:46 +00:00
Chris Lattner
0ea40c6fac
Teach basicaa about some stdc functions.
...
llvm-svn: 12408
2004-03-15 03:36:49 +00:00
Chris Lattner
781ede7382
Mostly cosmetic improvements. Do fix the bug where a global value was considered an input.
...
llvm-svn: 12406
2004-03-15 01:26:44 +00:00
Chris Lattner
3933f4660f
Assert that input blocks meet the invariants we expect
...
Simplify the input/output finder. All elements of a basic block are
instructions. Any used arguments are also inputs. An instruction can only
be used by another instruction.
llvm-svn: 12405
2004-03-15 01:18:23 +00:00
Chris Lattner
49038b7708
Fix several bugs in the loop extractor. In particular, subloops were never
...
extracted, and a function that contained a single top-level loop never had
the loop extracted, regardless of how much non-loop code there was.
llvm-svn: 12403
2004-03-15 00:02:02 +00:00
Chris Lattner
cfe9af750b
No correctness fixes here, just minor qoi fixes:
...
* Don't insert a branch to the switch instruction after the call, just
make it a single block.
* Insert the new alloca instructions in the entry block of the original
function instead of having them execute dynamically
* Don't make the default edge of the switch instruction go back to the switch.
The loop extractor shouldn't create new loops!
* Give meaningful names to the alloca slots and the reload instructions
* Some minor code simplifications
llvm-svn: 12402
2004-03-14 23:43:24 +00:00
Chris Lattner
17c2c776c3
Simplify code a bit, and fix bug CodeExtractor/2004-03-14-NoSwitchSupport.ll
...
This also implements a two minor improvements:
* Don't insert live-out stores IN the region, insert them on the code path
that exits the region
* If the region is exited to the same block from multiple paths, share the
switch statement entry, live-out store code, and the basic block.
llvm-svn: 12401
2004-03-14 23:05:49 +00:00
Chris Lattner
f8d6c1a252
Simplify the code a bit by making the collection of basic blocks to extract
...
a member of the class. While we're at it, turn the collection into a set
instead of a vector to improve efficiency and make queries simpler.
llvm-svn: 12400
2004-03-14 22:34:55 +00:00
Alkis Evlogimenos
2b94b048a9
Another API change to MRegisterInfo::foldMemoryOperand. Instead of a
...
MachineBasicBlock::iterator take a MachineInstr*.
llvm-svn: 12392
2004-03-14 20:14:27 +00:00
Chris Lattner
95c238ef5b
Split into two passes. Now there is the general loop extractor, usable on
...
the command line, and the single loop extractor, usable by bugpoint
llvm-svn: 12390
2004-03-14 20:01:36 +00:00
Alkis Evlogimenos
ff9482b664
Change MRegisterInfo::foldMemoryOperand to return the folded
...
instruction to make the API more flexible.
llvm-svn: 12386
2004-03-14 07:19:51 +00:00
Chris Lattner
cf5d48e8af
Passes don't print stuff!
...
llvm-svn: 12385
2004-03-14 04:17:53 +00:00
Chris Lattner
7e7c3332b8
Do not create empty basic blocks when the lowerswitch pass expects blocks to
...
be non-empty! This fixes LowerSwitch/2004-03-13-SwitchIsDefaultCrash.ll
llvm-svn: 12384
2004-03-14 04:14:31 +00:00
Chris Lattner
e52c176a7c
Minor random cleanups
...
llvm-svn: 12382
2004-03-14 04:01:47 +00:00
Chris Lattner
f3b0377169
FunctionPass's should not define their own 'run' method.
...
Require 'simplified' loops, not just raw natural loops. This fixes
CodeExtractor/2004-03-13-LoopExtractorCrash.ll
llvm-svn: 12381
2004-03-14 04:01:06 +00:00
Chris Lattner
39b3ae34bd
If a block is dead, dominators will not be calculated for it. Because of this
...
loop information won't see it, and we could have unreachable blocks pointing to
the non-header node of blocks in a natural loop. This isn't tidy, so have the
loopsimplify pass clean it up.
llvm-svn: 12380
2004-03-14 03:59:22 +00:00
Chris Lattner
f943b487c5
Catch some more cases of broken code. The loop extractor seems to be creating
...
situations where there is a branch that goes to a block in another function.
llvm-svn: 12379
2004-03-14 03:23:54 +00:00
Chris Lattner
b23b38259a
Verify functions as they are produced if -debug is specified. Reduce
...
curly braceage
llvm-svn: 12378
2004-03-14 03:17:22 +00:00
Chris Lattner
17042ee9ad
verifyFunction has been broken for a long time now. Fix it.
...
llvm-svn: 12377
2004-03-14 03:16:15 +00:00
Chris Lattner
46c006bb19
Move prototype to IPO.h instead of Scalar.h
...
Make sure that the file interface header (IPO.h) is included first
remove dead #incldue
llvm-svn: 12375
2004-03-14 02:37:16 +00:00
Chris Lattner
3d96322890
Indent anon namespace properly, add copyright block
...
llvm-svn: 12373
2004-03-14 02:34:07 +00:00
Chris Lattner
1685a3af78
Move to the IPO library. Utils shouldn't contain passes.
...
llvm-svn: 12372
2004-03-14 02:32:27 +00:00
Chris Lattner
5003f9e473
DemoteRegToStack got moved from DemoteRegToStack.h to Local.h
...
llvm-svn: 12368
2004-03-14 02:13:38 +00:00
Chris Lattner
52ac108b28
Add some debugging output
...
Fix InstCombine/2004-03-13-InstCombineInfLoop.ll which caused an infinite
loop compiling (I think) povray.
llvm-svn: 12365
2004-03-13 23:54:27 +00:00
Chris Lattner
763b6c41d4
This change makes two big adjustments.
...
* Be a lot more accurate about what the effects will be when inlining a call
to a function when an argument is an alloca.
* Dramatically reduce the penalty for inlining a call in a large function.
This heuristic made it almost impossible to inline a function into a large
function, no matter how small the callee is.
llvm-svn: 12363
2004-03-13 23:15:45 +00:00
Chris Lattner
8d45aeaff1
This little patch speeds up the loop used to update the dominator set analysis.
...
On the testcase from GCC PR12440, which has a LOT of loops (1392 of which require
preheaders to be inserted), this speeds up the loopsimplify pass from 1.931s to
0.1875s. The loop in question goes from 1.65s -> 0.0097s, which isn't bad. All of
these times are a debug build.
This adds a dependency on DominatorTree analysis that was not there before, but
we always had dominatortree available anyway, because LICM requires both loop
simplify and DT, so this doesn't add any extra analysis in practice.
llvm-svn: 12362
2004-03-13 22:01:26 +00:00
Chris Lattner
37b7966121
Fix a tiny bug that caused an incorrect assertion failure poolallocating
...
boxed-sim.
llvm-svn: 12358
2004-03-13 01:14:23 +00:00
Chris Lattner
b45245327e
It helps if I save the file. :)
...
llvm-svn: 12357
2004-03-13 00:24:52 +00:00
Chris Lattner
f7bc6fd913
Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* to
...
Intrinsic::va*. This avoid conflicting with macros in the stdlib.h file.
llvm-svn: 12356
2004-03-13 00:24:00 +00:00
Chris Lattner
e10c6cd509
Implement sub.ll:test14
...
llvm-svn: 12355
2004-03-13 00:11:49 +00:00
Chris Lattner
284e9ab607
Implement InstCombine/sub.ll:test12 & test13
...
llvm-svn: 12353
2004-03-12 23:53:13 +00:00
Chris Lattner
bb08e801d4
Fix a couple of minor problems. Because PHI nodes can use themselves, this
...
could cause infinite loops. Also, getUnderlyingObject can return null
llvm-svn: 12351
2004-03-12 23:12:55 +00:00
Chris Lattner
6bd3783ef8
Implement mod/ref analysis for a trivial case where locals don't escape.
...
This comes up when you have a local array on the stack and you never pass
the address of elements around.
llvm-svn: 12349
2004-03-12 22:39:00 +00:00
Brian Gaeke
5bc633f691
Make -print-machineinstrs show us the code both before and after reg. alloc.
...
llvm-svn: 12344
2004-03-12 21:19:08 +00:00
Alkis Evlogimenos
da990ad8a4
Add support for a wider range of CMOV instructions.
...
llvm-svn: 12336
2004-03-12 17:59:56 +00:00
Misha Brukman
ffcf81a11b
Simplify code to process CallSites (thanks to Chris).
...
llvm-svn: 12334
2004-03-12 16:20:49 +00:00
Misha Brukman
6eb48bab7b
Keep transitively-required passes alive for queries to work after the initial
...
user pass is destroyed.
llvm-svn: 12332
2004-03-12 06:16:28 +00:00
Misha Brukman
b5e89d17c2
Evaluate ModRef information in addition to regular ol' pointer analysis.
...
llvm-svn: 12331
2004-03-12 06:15:08 +00:00
Misha Brukman
ee27e80a0b
Implement getModRefInfo() for DSA to calculate whether a function modifies or
...
references a pointer.
llvm-svn: 12330
2004-03-12 06:14:22 +00:00
Chris Lattner
b53ea9f895
Add support for checking the select instruction
...
llvm-svn: 12325
2004-03-12 05:54:31 +00:00
Chris Lattner
a5cc2410f3
Know the opcode name of the select instruction
...
llvm-svn: 12324
2004-03-12 05:54:20 +00:00
Chris Lattner
c84ec93d3e
Add support for select constant expressions. Use reserve a bit more to avoid
...
memory wasteage.
llvm-svn: 12323
2004-03-12 05:54:04 +00:00
Chris Lattner
9ca4f0776f
Add new function
...
llvm-svn: 12322
2004-03-12 05:53:41 +00:00
Chris Lattner
f0a39f27e0
Teach the constant folder how to do select instructions
...
llvm-svn: 12321
2004-03-12 05:53:32 +00:00
Chris Lattner
aa815619b4
Print select instructions correctly
...
llvm-svn: 12320
2004-03-12 05:53:14 +00:00
Chris Lattner
76457c9c13
Add constant folding wrapper support for select instructions.
...
llvm-svn: 12319
2004-03-12 05:53:03 +00:00
Chris Lattner
6b127ea270
Add sccp support for select instructions
...
llvm-svn: 12318
2004-03-12 05:52:44 +00:00
Chris Lattner
41801f046e
Add trivial optimizations for select instructions
...
llvm-svn: 12317
2004-03-12 05:52:32 +00:00
Chris Lattner
e536e15ce1
ADd support for select instructions
...
llvm-svn: 12316
2004-03-12 05:52:14 +00:00
Chris Lattner
c90b157c66
Write select instructions to bytecode
...
llvm-svn: 12315
2004-03-12 05:52:01 +00:00
Chris Lattner
eb7e5f6d24
Read select instrs from bytecode
...
llvm-svn: 12314
2004-03-12 05:51:49 +00:00
Chris Lattner
81df059f63
Allow parsing select instruction and constant expr
...
llvm-svn: 12313
2004-03-12 05:51:36 +00:00
Misha Brukman
da119ce857
Make code more readable.
...
llvm-svn: 12305
2004-03-12 00:58:41 +00:00
Misha Brukman
8eac0e432a
Fix indentation.
...
llvm-svn: 12298
2004-03-11 23:53:51 +00:00
Misha Brukman
fe8263c956
Move implementations of functions here, which avoids #including <cstdlib> in the
...
header file and all those who #include it.
llvm-svn: 12297
2004-03-11 23:52:43 +00:00
Brian Gaeke
ede938b425
Get rid of the abort in PhyRegAlloc::finishSavingState().
...
Make an explicit call to it from runOnFunction() if we know we're supposed to
write into the global. This is lame (esp. the const_cast), but it solves
the problem.
llvm-svn: 12291
2004-03-11 19:46:30 +00:00
Brian Gaeke
e6916ff3b4
Give pass a name
...
llvm-svn: 12290
2004-03-11 19:23:15 +00:00
Misha Brukman
992e44e3c5
Fix compilation on Sparc: assert(0) => abort()
...
llvm-svn: 12289
2004-03-11 19:08:24 +00:00
Brian Gaeke
b3f9f99ff2
In PhyRegAlloc::saveState(), dump Arguments' saved-state, and try to
...
make the output more compact.
Divorce state-saving from the doFinalization method; for some reason it's not
getting called when I want it to, at Reoptimizer time. Put the guts in
PhyRegAlloc::finishSavingState(). Put an abort() in it so that I can be really
really sure that it's getting called.
Update comments.
llvm-svn: 12286
2004-03-11 06:45:52 +00:00
Brian Gaeke
bb3d010689
Remove ghostly directory from the build
...
llvm-svn: 12285
2004-03-11 04:42:41 +00:00
Brian Gaeke
a3ed4044b0
Move all the SaveState options and stuff inton one spot at the top of the file.
...
De-constify SaveStateToModule; we have to set both it and SaveRegAllocState
explicitly in the reoptimizer.
Make SaveRegAllocState an 'external location' option.
llvm-svn: 12278
2004-03-10 22:21:03 +00:00
Brian Gaeke
8af4555830
Only call verifySavedState if SaveRegAllocState is set AND debugging flag is on.
...
llvm-svn: 12277
2004-03-10 22:01:59 +00:00
Chris Lattner
405790ecae
Fix PR284: [indvars] Induction variable analysis violates LLVM invariants
...
llvm-svn: 12275
2004-03-10 21:42:19 +00:00
Brian Gaeke
c60efbcee1
My fix for PR274 broke the build on Darwin/PPC. As I'm fairly certain this
...
bug only affects Linux systems that use GLIBC, I'm going to put ifdefs around
the array.
llvm-svn: 12269
2004-03-10 17:38:28 +00:00
Chris Lattner
9ce3638433
implement new method
...
llvm-svn: 12264
2004-03-09 19:37:06 +00:00
Alkis Evlogimenos
0e0433a791
Spill explicit physical register defs as well.
...
llvm-svn: 12260
2004-03-09 08:35:13 +00:00
Alkis Evlogimenos
a13672fd71
Check if printing of implicit uses is required for all types of shift
...
instructions.
llvm-svn: 12258
2004-03-09 06:10:15 +00:00
Brian Gaeke
acf93be258
Address PR274 - '[JIT] Programs cannot resolve the fstat function'
...
by trying to get the compiler to generate an undefined reference for it
and related functions which live in libc_nonshared.a on Linux.
Linkers... sigh.
llvm-svn: 12256
2004-03-09 05:22:10 +00:00
Brian Gaeke
de0239b2a6
Hmm, who left this sitting around in my tree
...
llvm-svn: 12255
2004-03-09 04:49:13 +00:00
Alkis Evlogimenos
7c0224327e
Differentiate between extended precision floats (80-bit) and double precision floats (64-bit)
...
llvm-svn: 12254
2004-03-09 03:37:54 +00:00
Alkis Evlogimenos
f86d2df13d
Use newly added API to emit bytes for instructions that gas misassembles
...
llvm-svn: 12253
2004-03-09 03:35:34 +00:00
Alkis Evlogimenos
085957be0b
Add emitInstruction() API so that we can get the bytes of a simple instruction
...
llvm-svn: 12252
2004-03-09 03:34:53 +00:00
Alkis Evlogimenos
813daf05c3
Constify things a bit
...
llvm-svn: 12251
2004-03-09 03:30:12 +00:00
Brian Gaeke
57269b0c32
Change PhyRegAlloc::saveStateForValue()'s arg type to deal with
...
AllocInfo.Instruction becoming an int.
llvm-svn: 12247
2004-03-08 23:22:03 +00:00
Brian Gaeke
ed741b87c2
Save argument list alloc state by recording it as the operands of Instruction
...
#-1. Other minor changes to deal with AllocInfo.Instruction becoming an int.
llvm-svn: 12246
2004-03-08 23:22:02 +00:00
Brian Gaeke
b9b20ad428
Make AllocInfo's Instruction an int, so that we can overload it for arguments.
...
(Instruction #-1's operands = argument list).
llvm-svn: 12245
2004-03-08 23:22:01 +00:00
Chris Lattner
9414c55663
Switch to using edge profiling information as the basic source of profile info
...
from using basic block counts.
llvm-svn: 12242
2004-03-08 22:04:08 +00:00
Chris Lattner
83c62c84d6
Refactor implementations
...
llvm-svn: 12240
2004-03-08 21:30:35 +00:00
Chris Lattner
91ea0d3176
Import the trace class from the reoptimizer
...
llvm-svn: 12236
2004-03-08 20:57:27 +00:00
Chris Lattner
de661f7219
If we have edge counts, we can produce block counts. I've verified that
...
using an edge profile to produce block counts gives the exact same numbers
as using a block count directly.
llvm-svn: 12232
2004-03-08 20:03:52 +00:00
Chris Lattner
94d2b3a524
Adjust to new interface
...
llvm-svn: 12231
2004-03-08 18:51:45 +00:00
Chris Lattner
f3a838662e
Add initial support for reading edge counts. This will be improved to enable
...
translation of edge counts into block/function counts when possible.
llvm-svn: 12229
2004-03-08 18:20:18 +00:00
Chris Lattner
01062fb636
Initial support for edge profiling
...
llvm-svn: 12225
2004-03-08 17:54:34 +00:00
Chris Lattner
d40842737b
Split utility functions out of BlockProfiling.cpp
...
llvm-svn: 12224
2004-03-08 17:06:13 +00:00
Chris Lattner
41c4dc98a7
finegrainify namespacification
...
llvm-svn: 12221
2004-03-08 16:45:53 +00:00
Chris Lattner
e44cc1372e
Insert functions into the module promptly, not lazily. This fixes a bug
...
I introduced last night. Note to self: test the *correct* tree...
llvm-svn: 12220
2004-03-08 16:14:19 +00:00
Chris Lattner
38c2e1d1df
Implement test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx
...
llvm-svn: 12218
2004-03-08 06:17:35 +00:00
Chris Lattner
23980d3a7c
Remove Module::mutateConstantPointerRef, which is now thankfully dead!
...
This is one small step towards the complete obliteration of
ConstantPointerRef's entirely!! Woot!
llvm-svn: 12216
2004-03-08 06:16:10 +00:00
Chris Lattner
aa5d8cb72f
Eliminate nightmarish API
...
llvm-svn: 12214
2004-03-08 06:11:10 +00:00
Chris Lattner
df5ebdc8b1
Eliminate a REALLY HORRIBLE API: mutateReferences, which is gross gross gross.
...
llvm-svn: 12212
2004-03-08 06:09:57 +00:00
Chris Lattner
1ae4150e31
Fix a bug handling globals that are constants, but are still external
...
llvm-svn: 12208
2004-03-08 03:52:24 +00:00
Chris Lattner
a7180252e6
Avoid allocating special registers a bit more robustly
...
llvm-svn: 12207
2004-03-08 03:48:07 +00:00
Chris Lattner
a55628694a
Implement folding explicit load instructions into binary operations. For a
...
testcase like this:
int %test(int* %P, int %A) {
%Pv = load int* %P
%B = add int %A, %Pv
ret int %B
}
We now generate:
test:
mov %ECX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP + 8]
add %EAX, DWORD PTR [%ECX]
ret
Instead of:
test:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
mov %EAX, DWORD PTR [%EAX]
add %EAX, %ECX
ret
... saving one instruction, and often a register. Note that there are a lot
of other instructions that could use this, but they aren't handled. I'm not
really interested in adding them, but mul/div and all of the FP instructions
could be supported as well if someone wanted to add them.
llvm-svn: 12204
2004-03-08 01:58:35 +00:00
Chris Lattner
9a9b1c4822
Rearrange and refactor some code. No functionality changes.
...
llvm-svn: 12203
2004-03-08 01:18:36 +00:00
Chris Lattner
933f605592
Implement ArgumentPromotion/aggregate-promote.ll
...
This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference. This can
enable a LOT of subsequent optimizations in the caller function.
It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference. When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.
This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well. For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times. this is amazingly good considering that
we are using 'basicaa' so far.
llvm-svn: 12202
2004-03-08 01:04:36 +00:00
Chris Lattner
ebebe8f4a0
Implement: ArgumentPromotion/chained.ll
...
llvm-svn: 12200
2004-03-07 22:52:53 +00:00
Chris Lattner
8494ba277f
Fix another minor bug, exposed by perlbmk
...
llvm-svn: 12198
2004-03-07 22:43:27 +00:00
Chris Lattner
ca3b90f308
Since 'load null' is undefined, we can make it do whatever we want. Returning
...
a zero value is the most likely way to cause further simplification, so we do it.
llvm-svn: 12197
2004-03-07 22:16:24 +00:00
Chris Lattner
45cf084497
Fix a minor bug and turn debug output into, well, debug output.
...
llvm-svn: 12195
2004-03-07 21:54:50 +00:00
Chris Lattner
4415950211
New LLVM pass: argument promotion. This version only handles simple scalar
...
variables.
llvm-svn: 12193
2004-03-07 21:29:54 +00:00
Alkis Evlogimenos
65649a50e9
Add memory operand version of conditional move.
...
llvm-svn: 12190
2004-03-07 03:19:11 +00:00
Alkis Evlogimenos
02e8f14c6a
As I wrote in the docs, simple is the default spiller :-)
...
llvm-svn: 12189
2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
467364b706
Add simple spiller.
...
llvm-svn: 12188
2004-03-06 22:38:29 +00:00
Brian Gaeke
4bb4ec2388
Support return values of basic integer types.
...
Emit RETL instruction to return instead of funny JMPL.
Fix indentation.
llvm-svn: 12186
2004-03-06 05:32:28 +00:00
Brian Gaeke
855518207c
Sort stanzas into Sparc V8 book page number order.
...
Add RET, RETL. Rename SAVE, RESTORE & JMPL for consistency.
llvm-svn: 12185
2004-03-06 05:32:13 +00:00
Brian Gaeke
813f0d8512
Hack it so we do not try to allocate values to G0.
...
llvm-svn: 12184
2004-03-06 05:31:32 +00:00
Brian Gaeke
a265c3c4df
Make prolog align stack properly. Make epilog not touch any registers.
...
llvm-svn: 12183
2004-03-06 05:31:21 +00:00
Brian Gaeke
b4258231ca
Emit register names in lowercase, as required by the assembler.
...
llvm-svn: 12182
2004-03-06 05:30:21 +00:00
Brian Gaeke
13f3e2f254
Teach getRegClassForType where to find FP registers
...
llvm-svn: 12180
2004-03-06 03:54:13 +00:00
Chris Lattner
5a9cae47a4
Fix a minor bug
...
llvm-svn: 12169
2004-03-05 22:04:07 +00:00
Misha Brukman
75729872be
Unbreak the build on Sparc.
...
llvm-svn: 12161
2004-03-05 20:04:40 +00:00
Brian Gaeke
689af03601
Asm output is looking a lot better; not correct for all operands yet though.
...
llvm-svn: 12143
2004-03-05 08:39:09 +00:00
Chris Lattner
f21e7a75d6
Fix a bug in a previous checkin that broke 175.vpr
...
llvm-svn: 12128
2004-03-04 21:36:57 +00:00
Chris Lattner
c885697daa
Add support for strto* and v*printf
...
llvm-svn: 12127
2004-03-04 21:03:54 +00:00
Chris Lattner
48b0fd7101
Add non-crappy support for varargs
...
llvm-svn: 12126
2004-03-04 20:33:47 +00:00
Chris Lattner
ac1eaa43fa
Implement a FIXME, improving the efficiency of DSA on povray.
...
This reduces CBU time from 145s -> 122s (debug build), reduces # allocated nodes
from 129420 to 116477.
llvm-svn: 12125
2004-03-04 19:47:04 +00:00
Brian Gaeke
a24ac9bf8b
Support -print-machineinstrs
...
llvm-svn: 12124
2004-03-04 19:22:16 +00:00
Chris Lattner
e3fc09a37e
Speed up the cbu pass from taking somewhere near the age of the universe to about 90s on povray
...
llvm-svn: 12123
2004-03-04 19:16:35 +00:00
Brian Gaeke
0b913593ae
make -print-machineinstrs work for both SparcV9 and X86
...
llvm-svn: 12122
2004-03-04 19:16:23 +00:00
Alkis Evlogimenos
e8ebdcc780
Add assertion for scale verification.
...
llvm-svn: 12120
2004-03-04 18:05:02 +00:00
Alkis Evlogimenos
d6bb9674d9
Hide variable from other functions.
...
llvm-svn: 12118
2004-03-04 17:50:44 +00:00
Chris Lattner
bc7fc82865
Fix BU datastructures with povray!
...
The problem was that we were merging a field of a node with a value that was
deleted. Thanks to bugpoint for reducing povray to a nice small 3 function
example. :)
llvm-svn: 12116
2004-03-04 17:06:53 +00:00
Chris Lattner
e0c90cf983
Minor changes, remove some debugging code that got checked in somehow.
...
Make sure to scope the NodeMap passed into cloneInto so that it doesn't point
to nodes that are deleted. Add some FIXME's for future performance enhancements.
llvm-svn: 12115
2004-03-04 17:05:28 +00:00
Brian Gaeke
9c6c572f24
Asm printer support, based on x86 - only prints mnemonics for now
...
llvm-svn: 12113
2004-03-04 06:00:41 +00:00
Brian Gaeke
f8440c5a60
Double-FP pseudo-registers.
...
llvm-svn: 12112
2004-03-04 05:15:03 +00:00
Brian Gaeke
b2f869ee43
Subtract instructions; minor cleanups
...
llvm-svn: 12111
2004-03-04 04:37:45 +00:00
Brian Gaeke
0d71671bcf
Floating point regs
...
llvm-svn: 12110
2004-03-04 04:37:22 +00:00
Chris Lattner
790bd9d970
Only clone nodes that are needed in the caller, don't clone ALL aux calls. This improves
...
povray from having ~600K nodes and 300K call nodes to 65K nodes and 25K call nodes.
llvm-svn: 12109
2004-03-04 03:57:53 +00:00
Brian Gaeke
9ebecfdfe0
Simple copyConstantToReg support, SETHIi and ORri
...
llvm-svn: 12107
2004-03-04 00:56:25 +00:00
Brian Gaeke
324c928e36
Support add - note, still missing important copyConstantToRegister stuff
...
llvm-svn: 12106
2004-03-03 23:03:14 +00:00
Chris Lattner
a141de0f09
Fix a minor bug handling incomplete programs
...
llvm-svn: 12105
2004-03-03 23:00:19 +00:00
Chris Lattner
0e1cd00f2c
Fix a DSA bug that caused DSA to generate incredibly huge graphs and take forever to
...
do it on povray. The problem is that we were not copying globals from callees to
callers unless the existed in both graphs. We should have copied them in the case
where the global pointed to a node that was copied as well.
llvm-svn: 12104
2004-03-03 22:01:09 +00:00
Chris Lattner
a6540122dc
Deinline methods, add fast exit
...
llvm-svn: 12102
2004-03-03 20:55:27 +00:00
Brian Gaeke
aa96ff7926
Make MachineOperand's value named 'contents'. Make really, really sure
...
it is always completely initialized and copied.
Also, fix up many comments and asserts.
llvm-svn: 12100
2004-03-03 19:07:27 +00:00
Chris Lattner
309a57f0c0
Fix a node mapping problem that was causing the pool allocator to locally allocate
...
nodes that were globally live, thus breaking programs.
llvm-svn: 12094
2004-03-03 05:34:31 +00:00
Chris Lattner
6978f97701
SPECIFY a target data to initialize the CBE target with. Until now we have
...
been using the default target data layout object to lower malloc instructions,
causing us to allocate more memory than we needed! This could improve the
performance of the CBE generated code substantially!
llvm-svn: 12088
2004-03-03 02:14:15 +00:00
Chris Lattner
8f80c299f2
Add a new constructor
...
llvm-svn: 12087
2004-03-03 02:12:47 +00:00
Chris Lattner
2a1d782aee
Don't emit things like malloc(16*1). Allocation instructions are fixed arity now.
...
llvm-svn: 12086
2004-03-03 01:40:53 +00:00
Chris Lattner
ea4242a575
FINALLY be able to get symbolic type names in the globals graph!
...
llvm-svn: 12082
2004-03-02 21:39:43 +00:00
Chris Lattner
833646d6b8
Really, only if reopen
...
llvm-svn: 12080
2004-03-02 20:46:18 +00:00
Misha Brukman
754f11778f
Doxygenify comments.
...
llvm-svn: 12071
2004-03-02 00:22:19 +00:00
Misha Brukman
c58f772803
Implement ExtractCodeRegion()
...
llvm-svn: 12070
2004-03-02 00:20:57 +00:00
Misha Brukman
8a60e317f0
Make a note that this is usually used via bugpoint.
...
llvm-svn: 12068
2004-03-02 00:19:09 +00:00
Misha Brukman
491ff34abf
Doxygenify some comments.
...
llvm-svn: 12064
2004-03-01 23:53:11 +00:00
Alkis Evlogimenos
c4ad8080f7
Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now.
...
llvm-svn: 12062
2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
64e76a0d43
Add the long awaited memory operand folding support for linear scan
...
llvm-svn: 12058
2004-03-01 20:05:10 +00:00
Misha Brukman
d9ed820702
* If a badref has a name, print it out for ease of debugging
...
* Doxygenify (some) comments
llvm-svn: 12057
2004-03-01 19:48:13 +00:00
Chris Lattner
e7c638e989
Correctly add an array marker on a node when appropriate!
...
llvm-svn: 12055
2004-03-01 19:02:54 +00:00
Misha Brukman
f93e6ab769
* Add implementation of ExtractBasicBlock()
...
* Add comments to ExtractLoop()
llvm-svn: 12053
2004-03-01 18:28:34 +00:00
Chris Lattner
4d192a2674
Add this back, as its absence introduces assertions, and it seems to work now
...
that Instructions are annotable again
llvm-svn: 12045
2004-03-01 15:28:27 +00:00
Tanya Lattner
b22016f21b
fix bug in previous checkin
...
llvm-svn: 12044
2004-03-01 15:05:17 +00:00
Brian Gaeke
b78f8498f0
TargetCacheInfo has been removed; its only uses were to propagate a constant
...
(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.
llvm-svn: 12043
2004-03-01 06:43:29 +00:00
Tanya Lattner
27c08f11bf
Adding new Modulo Scheduling graph files.
...
llvm-svn: 12031
2004-03-01 02:50:57 +00:00
Tanya Lattner
55de04447c
Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress.
...
llvm-svn: 12030
2004-03-01 02:50:01 +00:00
Chris Lattner
9bf85f216b
Expand on my note-to-self
...
llvm-svn: 12029
2004-03-01 02:44:44 +00:00
Chris Lattner
8c1d67b55f
Handle passing constant integers to functions much more efficiently. Instead
...
of generating this code:
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
call Y
we now generate:
mov DWORD PTR [%ESP], 4
mov DWORD PTR [%ESP + 4], 123
call Y
Which hurts the eyes less. :)
Considering that register pressure around call sites is already high (with all
of the callee clobber registers n stuff), this may help a lot.
llvm-svn: 12028
2004-03-01 02:42:43 +00:00
Chris Lattner
c686a9ab37
Fix a minor code-quality issue. When passing 8 and 16-bit integer constants
...
to function calls, we would emit dead code, like this:
int Y(int, short, double);
int X() {
Y(4, 123, 4);
}
--- Old
X:
sub %ESP, 20
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
*** mov %AX, 123
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
fld QWORD PTR [.CPIX_0]
fstp QWORD PTR [%ESP + 8]
call Y
mov %EAX, 0
# IMPLICIT_USE %EAX %ESP
add %ESP, 20
ret
Now we emit:
X:
sub %ESP, 20
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
fld QWORD PTR [.CPIX_0]
fstp QWORD PTR [%ESP + 8]
call Y
mov %EAX, 0
# IMPLICIT_USE %EAX %ESP
add %ESP, 20
ret
Next up, eliminate the mov AX and movsx entirely!
llvm-svn: 12026
2004-03-01 02:34:08 +00:00
Chris Lattner
2749c25a5c
Disable tail duplication in a case that breaks on Olden/tsp
...
llvm-svn: 12021
2004-03-01 01:12:13 +00:00
Misha Brukman
848c759b41
* Remove function to find "main" in a Module, there's a method for that
...
* Removing extraneous empty space and empty comment lines
llvm-svn: 12014
2004-02-29 23:09:10 +00:00
Chris Lattner
6728dfdfe8
Fix -debug-pass=Executions, which relied on Function, Module, and BasicBlock
...
being annotable
llvm-svn: 12013
2004-02-29 22:37:04 +00:00
Chris Lattner
9736130083
Fix bug: test/Regression/Transforms/LowerInvoke/2004-02-29-PHICrash.llx
...
... which tickled the lowerinvoke pass because it used the BCE routines.
llvm-svn: 12012
2004-02-29 22:24:41 +00:00
Chris Lattner
33b5dd0463
Add an assert
...
llvm-svn: 12010
2004-02-29 22:01:51 +00:00
Chris Lattner
37418d74a1
Add back #include I messed up
...
llvm-svn: 12009
2004-02-29 21:40:53 +00:00
Chris Lattner
b82a16f3a5
Urg, forgot to check this in.
...
llvm-svn: 12007
2004-02-29 21:03:08 +00:00
Chris Lattner
4c7ed6793e
Remove public header. It's been moved to lib/Target/SparcV9
...
llvm-svn: 12004
2004-02-29 19:13:20 +00:00
Chris Lattner
fe38629411
Move the private MachineInstrAnnot.h into a private directory.
...
llvm-svn: 12003
2004-02-29 19:12:51 +00:00
Chris Lattner
b73a182845
Remove use of an ugly header
...
llvm-svn: 12002
2004-02-29 19:04:31 +00:00
Chris Lattner
0acd73e11f
Move methods out of .h file
...
llvm-svn: 12001
2004-02-29 19:02:39 +00:00
Alkis Evlogimenos
e186d8eb2f
Add instruction name description.
...
llvm-svn: 11998
2004-02-29 18:44:03 +00:00
Alkis Evlogimenos
8d8f872b3d
Use correct template for SHLD and SHRD instructions so that the memory
...
operand size is correctly specified.
llvm-svn: 11997
2004-02-29 09:19:40 +00:00
Alkis Evlogimenos
10f4523e9a
Improve allocation order:
...
1) For 8-bit registers try to use first the ones that are parts of the
same register (AL then AH). This way we only alias 2 16/32-bit
registers after allocating 4 8-bit variables.
2) Move EBX as the last register to allocate. This will cause less
spills to happen since we will have 8-bit registers available up to
register excaustion (assuming we use the allocation order). It
would be nice if we could push all of the 8-bit aliased registers
towards the end but we much prefer to keep callee saved register to
the end to avoid saving them on entry and exit of the function.
For example this gives a slight reduction of spills with linear scan
on 164.gzip.
Before:
11221 asm-printer - Number of machine instrs printed
975 spiller - Number of loads added
675 spiller - Number of stores added
398 spiller - Number of register spills
After:
11182 asm-printer - Number of machine instrs printed
952 spiller - Number of loads added
652 spiller - Number of stores added
386 spiller - Number of register spills
llvm-svn: 11996
2004-02-29 09:17:01 +00:00
Alkis Evlogimenos
7ecfe0a839
A big X86 instruction rename. The instructions are renamed to make
...
their names more decriptive. A name consists of the base name, a
default operand size followed by a character per operand with an
optional special size. For example:
ADD8rr -> add, 8-bit register, 8-bit register
IMUL16rmi -> imul, 16-bit register, 16-bit memory, 16-bit immediate
IMUL16rmi8 -> imul, 16-bit register, 16-bit memory, 8-bit immediate
MOVSX32rm16 -> movsx, 32-bit register, 16-bit memory
llvm-svn: 11995
2004-02-29 08:50:03 +00:00
Brian Gaeke
8303cb575e
Remove dead member variables of SparcV9SchedInfo and TargetSchedInfo
...
llvm-svn: 11994
2004-02-29 08:40:03 +00:00
Chris Lattner
a7db4ff17a
Eliminate the X86-specific BMI functions, using BuildMI instead.
...
Replace uses of addZImm with addImm.
llvm-svn: 11992
2004-02-29 07:22:16 +00:00
Chris Lattner
e8e0bafbba
Fix a miscompilation of 197.parser that occurs when you have single basic
...
block loops.
llvm-svn: 11990
2004-02-29 07:10:16 +00:00
Chris Lattner
bcc0df60ef
Fix PR255: [tailduplication] Single basic block loops are very rare
...
Note that this is a band-aid put over a band-aid. This just undisables
tail duplication in on very specific case that it seems to work in.
llvm-svn: 11989
2004-02-29 06:41:20 +00:00
Chris Lattner
c2977ac665
Adjust to change in TII ctor arguments
...
llvm-svn: 11987
2004-02-29 06:31:44 +00:00
Chris Lattner
b5f0e162c7
Eliminate the distinction between "real" and "unreal" instructions
...
llvm-svn: 11986
2004-02-29 06:31:16 +00:00
Chris Lattner
cfc8f02250
These two virtual methods are never called.
...
llvm-svn: 11984
2004-02-29 05:59:33 +00:00
Chris Lattner
dd752eec34
Remove a TON of flags that noone cares about
...
llvm-svn: 11983
2004-02-29 05:58:30 +00:00
Chris Lattner
d80ff1bdc0
Noone calls these virtual methods
...
llvm-svn: 11982
2004-02-29 05:58:16 +00:00
Chris Lattner
dded7ad224
This is the only file in the system that uses this enum. eliminate it.
...
llvm-svn: 11981
2004-02-29 05:57:59 +00:00
Chris Lattner
7cb71a20ca
Implement initial prolog/epilog code insertion methods.
...
llvm-svn: 11979
2004-02-29 05:18:30 +00:00
Chris Lattner
8b7ac81d2e
int64_t -> int
...
llvm-svn: 11977
2004-02-29 05:07:02 +00:00
Alkis Evlogimenos
0f96b44e0e
Use correct template for ADC instruction with memory operands.
...
llvm-svn: 11974
2004-02-29 02:18:17 +00:00
Chris Lattner
800f720e7b
Add an instruction selector capable of selecting 'ret void'
...
llvm-svn: 11973
2004-02-29 00:27:00 +00:00
Alkis Evlogimenos
6815402082
SHLD and SHRD take 32-bit operands but an 8-bit immediate. Rename them
...
to denote this fact.
llvm-svn: 11972
2004-02-28 23:46:44 +00:00
Alkis Evlogimenos
e8dac99a43
Floating point loads/stores act on memory operands. Rename them to
...
denote this fact.
llvm-svn: 11971
2004-02-28 23:42:35 +00:00
Alkis Evlogimenos
1d71a15be9
Rename instruction templates to be easier to the human eye to
...
parse. The name is now I (operand size)*. For example:
Im32 -> instruction with 32-bit memory operands.
Im16i8 -> instruction with 16-bit memory operands and 8 bit immediate
operands.
llvm-svn: 11970
2004-02-28 23:09:03 +00:00
Alkis Evlogimenos
6038a89025
Uncomment instructions that take both an immediate and a memory
...
operand but their sizes differ.
llvm-svn: 11969
2004-02-28 22:06:59 +00:00
Alkis Evlogimenos
f208a0fd81
Each instruction now has both an ImmType and a MemType. This describes
...
the size of the immediate and the memory operand on instructions that
use them. This resolves problems with instructions that take both a
memory and an immediate operand but their sizes differ (i.e. ADDmi32b).
llvm-svn: 11967
2004-02-28 22:02:05 +00:00
Brian Gaeke
d551a8b5fe
Fix typo in comment
...
llvm-svn: 11966
2004-02-28 21:55:18 +00:00
Chris Lattner
a854ddd528
Implement switch->br and br->switch folding by ripping out the switch->switch
...
and br->br code and generalizing it. This allows us to compile code like this:
int test(Instruction *I) {
if (isa<CastInst>(I))
return foo(7);
else if (isa<BranchInst>(I))
return foo(123);
else if (isa<UnwindInst>(I))
return foo(1241);
else if (isa<SetCondInst>(I))
return foo(1);
else if (isa<VAArgInst>(I))
return foo(42);
return foo(-1);
}
into:
int %_Z4testPN4llvm11InstructionE("struct.llvm::Instruction"* %I) {
entry:
%tmp.1.i.i.i.i.i.i.i = getelementptr "struct.llvm::Instruction"* %I, long 0, ubyte 4 ; <uint*> [#uses=1]
%tmp.2.i.i.i.i.i.i.i = load uint* %tmp.1.i.i.i.i.i.i.i ; <uint> [#uses=2]
%tmp.2.i.i.i.i.i.i = seteq uint %tmp.2.i.i.i.i.i.i.i, 27 ; <bool> [#uses=0]
switch uint %tmp.2.i.i.i.i.i.i.i, label %endif.0 [
uint 27, label %then.0
uint 2, label %then.1
uint 5, label %then.2
uint 14, label %then.3
uint 15, label %then.3
uint 16, label %then.3
uint 17, label %then.3
uint 18, label %then.3
uint 19, label %then.3
uint 32, label %then.4
]
...
As well as handling the cases in 176.gcc and many other programs more effectively.
llvm-svn: 11964
2004-02-28 21:28:10 +00:00
Chris Lattner
3583890ab7
Change this so that LLC actually tries to run the code generator, though it will
...
immediately abort due to lack of an instruction selector. :)
llvm-svn: 11963
2004-02-28 20:21:45 +00:00
Chris Lattner
529a354ea4
SparcV8 now builds.
...
llvm-svn: 11960
2004-02-28 19:54:00 +00:00
Chris Lattner
5effdb67b7
fine grainify namespacification
...
llvm-svn: 11959
2004-02-28 19:53:18 +00:00
Chris Lattner
3852b0c3b8
Finegrainify namespacification
...
llvm-svn: 11958
2004-02-28 19:52:49 +00:00
Chris Lattner
88268605ec
Tab completion is our friend.
...
llvm-svn: 11957
2004-02-28 19:45:39 +00:00
Chris Lattner
013aa47975
Clean up rules
...
llvm-svn: 11956
2004-02-28 19:43:40 +00:00
Chris Lattner
d2bb7e91b0
Bring this directory into "it actually compiles" land
...
llvm-svn: 11955
2004-02-28 19:37:18 +00:00
Chris Lattner
3f70429d28
Fix multiple inclusion problem
...
llvm-svn: 11954
2004-02-28 19:31:32 +00:00
Chris Lattner
69ab9e0840
if there is already a prototype for malloc/free, use it, even if it's incorrect.
...
Do not just inject a new prototype.
llvm-svn: 11951
2004-02-28 18:51:45 +00:00
Alkis Evlogimenos
977dbaadf7
Do not generate instructions with mismatched memory/immediate sized
...
operands. The X86 backend doesn't handle them properly right now.
llvm-svn: 11944
2004-02-28 06:01:43 +00:00
Chris Lattner
7872171767
Rename AddUsesToWorkList -> AddUsersToWorkList, as that is what it does.
...
Create a new AddUsesToWorkList method
optimize memmove/set/cpy of zero bytes to a noop.
llvm-svn: 11941
2004-02-28 05:22:00 +00:00
Chris Lattner
192d8413d3
Turn 'free null' into nothing
...
llvm-svn: 11940
2004-02-28 04:57:37 +00:00
Misha Brukman
0b846ae65c
Right, it's really Extractor, not Extraction.
...
llvm-svn: 11939
2004-02-28 03:37:58 +00:00
Misha Brukman
f14fbb1a0b
A pass that uses the generic CodeExtractor to rip out *every* loop in every
...
function, as long as the loop isn't the only one in that function. This should
help debugging passes easier with BugPoint.
llvm-svn: 11936
2004-02-28 03:33:01 +00:00
Misha Brukman
26e90f8776
A generic code extractor: given a list of BasicBlocks, it will rip them out into
...
a new function, taking care of inputs and outputs.
llvm-svn: 11935
2004-02-28 03:26:20 +00:00
Alkis Evlogimenos
84f00e93f7
Further comment updates.
...
llvm-svn: 11933
2004-02-28 03:20:31 +00:00
Alkis Evlogimenos
edbe362160
Update comments.
...
llvm-svn: 11932
2004-02-28 03:12:31 +00:00
Alkis Evlogimenos
0f91ce52a0
My previous commit broke the jit. The shift instructions always take
...
an 8-bit immediate. So mark the shifts that take immediates as taking
an 8-bit argument. The rest with the implicit use of CL are marked
appropriately.
A bug still exists:
def SHLDmri32 : I2A8 <"shld", 0xA4, MRMDestMem>, TB; // [mem32] <<= [mem32],R32 imm8
The immediate in the above instruction is 8-bit but the memory
reference is 32-bit. The printer prints this as an 8-bit reference
which confuses the assembler. Same with SHRDmri32.
llvm-svn: 11931
2004-02-28 02:56:26 +00:00
Brian Gaeke
6afa0813d2
Turn off the SparcV9MachineCodeDestructionPass for now, because it's buggy
...
llvm-svn: 11930
2004-02-27 21:15:40 +00:00
Brian Gaeke
0e74ff91a0
Correct DestroyMachineFunction's getPassName
...
llvm-svn: 11929
2004-02-27 21:01:14 +00:00
Chris Lattner
9e71c09ff5
Only clone global nodes between graphs if both graphs have the global.
...
llvm-svn: 11928
2004-02-27 20:05:15 +00:00
Chris Lattner
138a7dfb62
ADD MORE FUNCTIONS!
...
llvm-svn: 11927
2004-02-27 20:04:48 +00:00
Alkis Evlogimenos
ace6d81654
Fix argument size for SHL, SHR, SAR, SHLD and SHRD families of
...
instructions.
llvm-svn: 11923
2004-02-27 19:46:30 +00:00
Alkis Evlogimenos
839c70f45d
Fix encoding of ADD and SUB family of instructions. Also rearrange
...
them so that they are consistent with AND, XOR, etc...
llvm-svn: 11922
2004-02-27 18:57:00 +00:00
Alkis Evlogimenos
56d357aa23
Rename MRMS[0-7]{r,m} to MRM[0-7]{r,m}.
...
llvm-svn: 11921
2004-02-27 18:55:12 +00:00
Chris Lattner
d06b64c941
setcond instructions don't have aliasing implications.
...
llvm-svn: 11919
2004-02-27 18:09:25 +00:00
Chris Lattner
644af802c9
Fix Regression/Assembler/2004-02-27-SelfUseAssertError.ll
...
llvm-svn: 11913
2004-02-27 17:28:25 +00:00
Alkis Evlogimenos
5ac109957f
Add memory operand folding support for the SETcc family of
...
instructions.
llvm-svn: 11907
2004-02-27 16:13:37 +00:00