b25de3ff60
eliminate the "Value" printing methods that print to a std::ostream.
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This required converting a bunch of stuff off DOUT and other cleanups.
llvm-svn: 79819
2009-08-23 04:37:46 +00:00
16f5415f5b
Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrap
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and hasNoSignedWrap, for consistency with the nuw and nsw properties.
llvm-svn: 79539
2009-08-20 17:11:38 +00:00
7167f42769
Fix a few places to check if TargetData is available before using it.
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llvm-svn: 79493
2009-08-19 23:38:22 +00:00
915302c605
Make SROA and PredicateSimplifier cope if TargetData is not
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available. This is very conservative for now.
llvm-svn: 79442
2009-08-19 18:22:18 +00:00
5d5bc6d000
Use hasDefinitiveInitializer() instead of testing the same thing
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by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.
llvm-svn: 79441
2009-08-19 18:20:44 +00:00
cbfe9b195c
Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also
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delete a newed pointer, and improve readability a little bit.
llvm-svn: 79411
2009-08-19 07:16:57 +00:00
9ddc52d5b8
Be more careful when modifying PHI nodes. Patch by Andre Tavares.
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llvm-svn: 79407
2009-08-19 06:24:33 +00:00
dea2358c68
Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
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before performing optimizations based on constant string values.
llvm-svn: 79384
2009-08-19 00:11:12 +00:00
82ac81b1cc
Fix a bug that caused globalopt to miscompile tramp3d: don't miss
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unruly indices for arrays that are members of structs.
llvm-svn: 79337
2009-08-18 14:58:19 +00:00
10f1471e2f
Make TargetData optional in MemCpyOptimizer.
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llvm-svn: 79306
2009-08-18 01:17:52 +00:00
9f2b3db428
Make TargetData optional in SimplifyLibCalls.
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llvm-svn: 79298
2009-08-18 00:48:13 +00:00
90e17e787f
The attached patches attempt to fix cross builds. For example, if you
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try to use i686-darwin to build for arm-eabi, you'll quickly run into
several false assumptions that the target OS must be the same as the
host OS. These patches split $(OS) into $(HOST_OS) and $(TARGET_OS) to
help builds like "make check" and the test-suite able to cross
compile. Along the way a target of *-unknown-eabi is defined as
"Freestanding" so that TARGET_OS checks have something to work with.
Patch by Sandeep Patel!
llvm-svn: 79296
2009-08-18 00:40:33 +00:00
7cb92a1e3d
Update comments to new-style syntax.
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llvm-svn: 79263
2009-08-17 18:45:31 +00:00
4c737147e1
Don't crash on critical edge. Patch by Andre Tavares.
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llvm-svn: 79252
2009-08-17 17:00:57 +00:00
8dd69f88ea
Fix debug output to include a newline after printing a Value, now
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that Value's operator<< doesn't include one.
llvm-svn: 79240
2009-08-17 15:25:05 +00:00
c4ce58d8fe
Don't access the first element of a potentially empty
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vector (&Formals[0]). With this change llvm-gcc builds
with expensive checking enabled for C, C++ and Fortran.
While there, change a std::vector into a SmallVector.
This is partly gratuitous, but mostly because not all
STL vector implementations define the data method (and
it should be faster).
llvm-svn: 79237
2009-08-17 14:33:27 +00:00
aa464002f0
Don't crash trying to promote VLAs.
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llvm-svn: 79226
2009-08-17 05:37:31 +00:00
d56fca4708
Fix for PR3016: detect the tricky case, where there are
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unfoldable references to a PHI node in the block being folded, and disable
the transformation in that case. The correct transformation of such PHI
nodes depends on whether BB dominates Succ, and dominance is expensive
to compute here. (Alternatively, it's possible to check whether any
uses are live, but that's also essentially a dominance calculation.
Another alternative is to use reg2mem, but it probably isn't a good idea to
use that in simplifycfg.)
Also, remove some incorrect code from CanPropagatePredecessorsForPHIs
which is made unnecessary with this patch: it didn't consider the case
where a PHI node in BB has multiple uses.
llvm-svn: 79174
2009-08-16 04:23:49 +00:00
693a9c57a6
Don't try to get the context from an erased Instruction.
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llvm-svn: 79134
2009-08-15 21:07:49 +00:00
dd0e74ceee
SSI construction should just go ahead and ignore instructions in unreachable
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blocks.
llvm-svn: 79132
2009-08-15 20:12:18 +00:00
dbeb33936f
Make TargetData optional in GlobalOpt and ArgumentPromotion.
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llvm-svn: 78967
2009-08-14 00:11:03 +00:00
a42ac6953b
Actually privatize a IntegerTypes, and fix a few bugs exposed by this.
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llvm-svn: 78955
2009-08-13 23:27:32 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +00:00
a95379d165
When InstCombine simplifies a load -> extract element to gep -> load, place
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the new load by the old load instead of by the extract element because
a store could have occurred between the load and extract element.
llvm-svn: 78891
2009-08-13 05:12:13 +00:00
5c2764b3e9
Simplify conditional.
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llvm-svn: 78889
2009-08-13 03:05:20 +00:00
aef432505b
Simplify and reduce indentation using early exits.
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No intended functionality change.
llvm-svn: 78888
2009-08-13 03:00:57 +00:00
438ba80afa
DEBUGify some DOUTs.
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llvm-svn: 78887
2009-08-13 02:45:03 +00:00
177a2f5313
Prune trailing whitespace.
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llvm-svn: 78886
2009-08-13 02:40:50 +00:00
4ac2f639cd
Transform -X/C to X/-C, implementing a README.txt entry.
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llvm-svn: 78812
2009-08-12 16:37:02 +00:00
908da3d97e
Optimize (x/C)*C to x if the division is exact.
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llvm-svn: 78811
2009-08-12 16:33:09 +00:00
43103abef0
Update instcombine's debug output to account for Value*'s operator<<
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not appending its own newline.
llvm-svn: 78810
2009-08-12 16:28:31 +00:00
5476cfdb15
Remove a bunch more now-unnecessary Context arguments.
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llvm-svn: 78809
2009-08-12 16:23:25 +00:00
6b490ce4c7
Eliminate a bunch of now unnecessary explicit Context variables.
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llvm-svn: 78808
2009-08-12 16:04:34 +00:00
117c9e8497
Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first.
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llvm-svn: 78759
2009-08-12 00:36:31 +00:00
dbae4db67a
Optimize exact sdiv by a constant power of 2 to ashr.
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llvm-svn: 78714
2009-08-11 20:47:47 +00:00
38484ceec9
Remove unnecessary casts.
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llvm-svn: 78664
2009-08-11 15:15:10 +00:00
c5aa8c6d29
Remove dead metadata.
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llvm-svn: 78651
2009-08-11 06:31:57 +00:00
53aa7a960c
Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
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llvm-svn: 78610
2009-08-10 22:56:29 +00:00
3b5008e23a
More ProfileInfo improvements.
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- Part of optimal static profiling patch sequence by Andreas Neustifter.
- Store edge, block, and function information separately for each functions
(instead of in one giant map).
- Return frequencies as double instead of int, and use a sentinel value for
missing information.
llvm-svn: 78477
2009-08-08 17:43:09 +00:00
b1106fbdbc
Fix dom frontier update. This fixes PR4667.
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Patch by Jakub Staszak.
llvm-svn: 78388
2009-08-07 17:16:44 +00:00
a6d0afcb74
Fix a bunch of namespace pollution.
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llvm-svn: 78363
2009-08-07 01:32:21 +00:00
ae5ead6df4
Use DebugInfoFinder.
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llvm-svn: 78333
2009-08-06 20:53:06 +00:00
03cb69fbd1
Privatize the StructType table, which unfortunately involves routing contexts through a number of APIs.
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llvm-svn: 78258
2009-08-05 23:16:16 +00:00
298bce2aa9
Check for !isa<Constant> instead of isa<Instruction>. This
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matches what the comment says, and it avoids spurious BitCast
instructions for Argument values.
llvm-svn: 78121
2009-08-04 23:23:56 +00:00
f011f5a8a2
Add a new Constant::getIntegerValue helper function, and convert a
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few places in InstCombine to use it, to fix problems handling pointer
types. This fixes the recent llvm-gcc bootstrap error.
llvm-svn: 78005
2009-08-03 22:07:33 +00:00
cfd3bbe643
Make SimplifyDemandedUseBits generate vector constants where
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appropriate. Patch per report on llvmdev. No testcase because the
original report didn't come with a testcase, and I can't come up with a case
that actually fails.
llvm-svn: 77986
2009-08-03 19:15:42 +00:00
5a1acd9912
Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
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metadata related, which I'm waiting on to avoid conflicting with Devang.
llvm-svn: 77721
2009-07-31 20:28:14 +00:00
ef3ef7f645
Fix GVN's debug output, now that operator<< on Value* doesn't print
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a trailing newline.
llvm-svn: 77719
2009-07-31 20:24:18 +00:00
2602bb4cdc
- Convert the rest of the DOUTs to DEBUG+errs().
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- One formatting change.
No intended functionality change.
llvm-svn: 77717
2009-07-31 19:52:24 +00:00
ca9a4f1045
PR4662: Fix a crash introduced by the recent LLVMContext changes.
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llvm-svn: 77716
2009-07-31 19:36:47 +00:00
Chris Lattner