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Author SHA1 Message Date
Bob Wilson
8209e942a6 Fix branch folding bug for indirect branches: for a block containing only 
an unconditional branch (possibly from tail merging), this code is
trying to redirect all of its predecessors to go directly to the branch
target, but that isn't feasible for indirect branches.  The other
predecessors (that don't end with indirect branches) could theoretically
still be handled, but that is not easily done right now.

The AnalyzeBranch interface doesn't currently let us distinguish jump table
branches from indirect branches, and this code is currently handling
jump tables.  To avoid punting on address-taken blocks, we would have to give
up handling jump tables.  That seems like a bad tradeoff.

llvm-svn: 85975
 2009-11-03 23:44:31 +00:00
Chris Lattner
b634c6cdb5 reimplement multiple return value handling in IPSCCP, making it 
more aggressive an correct.  This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.

llvm-svn: 85973
 2009-11-03 23:40:48 +00:00
Evan Cheng
b50510c510 Fix t2Int_eh_sjlj_setjmp. Immediate form of orr is a 32-bit instruction. So it should be 22 bytes instead of 20 bytes long. 
llvm-svn: 85965
 2009-11-03 23:13:34 +00:00
Bill Wendling
eb0ca3bad7 Use llvm-gcc on newer Darwins. 
llvm-svn: 85963
 2009-11-03 22:50:10 +00:00
Evan Cheng
caab17007b fconsts / fconstd immediate should be proceeded with #. 
llvm-svn: 85952
 2009-11-03 21:59:33 +00:00
Chris Lattner
8121c7cf9c fix broken link 
llvm-svn: 85951
 2009-11-03 21:50:09 +00:00
Evan Cheng
d783406059 Re-apply 85799. It turns out my code isn't buggy. 
llvm-svn: 85947
 2009-11-03 21:40:02 +00:00
Chris Lattner
036e15ff97 fix test 
llvm-svn: 85946
 2009-11-03 21:26:26 +00:00
Chris Lattner
11eafaadc3 merge a test into ipsccp-basic. running llvm-ld to get one pass is... bad. 
llvm-svn: 85945
 2009-11-03 21:25:50 +00:00
David Goodwin
629a685f05 Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed. 
llvm-svn: 85939
 2009-11-03 20:57:50 +00:00
Chris Lattner
10c341e8fa finish half thunk thought 
llvm-svn: 85937
 2009-11-03 20:52:57 +00:00
Victor Hernandez
628b65ea6e Changes requested (avoid getFunction(), avoid Type creation via isVoidTy(), and avoid redundant isFreeCall cases) in feedback to r85176 
llvm-svn: 85936
 2009-11-03 20:39:35 +00:00
David Goodwin
9f1cf41932 <rdar://problem/7352605>. When building schedule graph use mayAlias information to avoid chaining loads/stores of spill slots with non-aliased memory ops. 
llvm-svn: 85934
 2009-11-03 20:15:00 +00:00
Victor Hernandez
046375ac3f Changes (* location in pointer variables, avoiding include, and using APInt::getLimitedValue) based on feedback to r85814 
llvm-svn: 85933
 2009-11-03 20:02:35 +00:00
Chris Lattner
3ea71a58aa turn IPSCCP back on by default, try #3 or 4? Woo. 
llvm-svn: 85929
 2009-11-03 19:35:13 +00:00
Chris Lattner
2aa5962af6 fix an IPSCCP bug I introduced when I changed IPSCCP to start working on 
functions that don't have local linkage.  Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking.  This fixes a miscompilation of 
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.

llvm-svn: 85923
 2009-11-03 19:24:51 +00:00
Duncan Sands
d4b8f9ee93 Make this code more robust by not thinking we are making progress 
if zero bytes were read.

llvm-svn: 85922
 2009-11-03 19:10:22 +00:00
Devang Patel
5b0aaf3a1f Parse debug info attached with insertvalue and extractvalue instructions. 
llvm-svn: 85921
 2009-11-03 19:06:07 +00:00
Anton Korobeynikov
de7cbab064 Move subtarget check upper for NEON reg-reg fixup pass. 
llvm-svn: 85914
 2009-11-03 18:46:11 +00:00
Chris Lattner
d8b3330ada mark some constant global const. 
llvm-svn: 85910
 2009-11-03 18:30:31 +00:00
Devang Patel
7cb7017106 Ignore unnamed variables. 
llvm-svn: 85909
 2009-11-03 18:30:27 +00:00
Chris Lattner
cac8f54197 xfail this test since daniel turned off ipsccp 
llvm-svn: 85907
 2009-11-03 17:54:12 +00:00
Chris Lattner
15ceb6e7f7 testcase for r85903 
llvm-svn: 85906
 2009-11-03 17:03:02 +00:00
Chris Lattner
bfe755788f fix a subtle bug I introduced when refactoring SCCP. Testcase 
to follow.

llvm-svn: 85903
 2009-11-03 16:50:11 +00:00
Kenneth Uildriks
e711736014 Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test 
llvm-svn: 85900
 2009-11-03 15:29:06 +00:00
Kenneth Uildriks
d524f94e95 Added a comment to a function that had none 
llvm-svn: 85899
 2009-11-03 15:25:20 +00:00
Benjamin Kramer
c6b59b889b Eliminate some temporaries. 
llvm-svn: 85896
 2009-11-03 12:52:50 +00:00
Duncan Sands
531ed64b09 Run the functionattrs pass after the inliner, and not before. 
This makes both logical sense (see below) and increases the
number of functions marked readnone/readonly by about 1-2%
in practice.  The number of functions marked nocapture goes
up by about 5-10%.  The reason it makes sense is shown by
the following example: if you run -functionattrs -inline on
it, then no attributes are assigned.  But if you instead run
-inline -functionattrs then @f is marked readnone because the
simplifications produced by the inliner eliminate the store.

@x = external global i32

define void @w(i1 %b) {
        br i1 %b, label %write, label %return
write:
        store i32 1, i32 *@x
        br label %return
return:
        ret void
}

define void @f() {
        call void @w(i1 0)
        ret void
}

llvm-svn: 85893
 2009-11-03 09:40:08 +00:00
Daniel Dunbar
b5c7546aaf Speculatively redisable IPSCCP, I think its still breaking things. 
llvm-svn: 85884
 2009-11-03 07:49:22 +00:00
Daniel Dunbar
3d3f9b9c83 lit: Update Clang's test style to use XFAIL: and XTARGET: lines that match 
LLVM's tests.

llvm-svn: 85882
 2009-11-03 07:26:38 +00:00
Evan Cheng
1d4575274c Trim unnecessary include. 
llvm-svn: 85878
 2009-11-03 07:08:08 +00:00
Bob Wilson
97331f70ca For Thumb indirect branches, use "mov pc, reg" which does not switch 
between ARM/Thumb modes and does not require the low bit of the target
address to be set for Thumb.

llvm-svn: 85874
 2009-11-03 06:29:56 +00:00
Jeffrey Yasskin
bc6f9d7e70 Fix a funky "declared with greater visibility than the type of its field" 
warning from gcc by removing VISIBILITY_HIDDEN attributes.  

llvm-svn: 85873
 2009-11-03 06:29:36 +00:00
Evan Cheng
ed22395c61 Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8. 
llvm-svn: 85871
 2009-11-03 05:52:54 +00:00
Evan Cheng
2807af42c0 Clean up copyRegToReg. 
llvm-svn: 85870
 2009-11-03 05:51:39 +00:00
Evan Cheng
9bedf1b587 Add QPR_8 as a superreg class of SPR_8 and DPR_8. 
llvm-svn: 85869
 2009-11-03 05:50:57 +00:00
Chris Lattner
7585c1f162 remove unneeded checks of isFreeCall 
llvm-svn: 85866
 2009-11-03 05:35:19 +00:00
Chris Lattner
cbd903cd12 remove a check of isFreeCall: the argument to free is already nocapture so the generic call code works fine. 
llvm-svn: 85865
 2009-11-03 05:34:51 +00:00
Chris Lattner
9d0f925cf0 remove a isFreeCall check: it is a callinst that can write to memory already. 
llvm-svn: 85863
 2009-11-03 05:33:46 +00:00
Ted Kremenek
a474928cda Update CMake file. 
llvm-svn: 85861
 2009-11-03 04:14:12 +00:00
Ted Kremenek
1489a35df9 Support updating 'llvm_add_target' lists as well. 
llvm-svn: 85860
 2009-11-03 04:06:58 +00:00
Ted Kremenek
cd7ab8bfa0 Alphabetize. 
llvm-svn: 85859
 2009-11-03 04:01:53 +00:00
Chris Lattner
b1dfdadabd turn IPSCCP back on now that the iterator invalidation bug is fixed. 
llvm-svn: 85858
 2009-11-03 03:42:51 +00:00
Nate Begeman
940753f08a Add a couple more target nodes 
llvm-svn: 85857
 2009-11-03 03:30:51 +00:00
Nate Begeman
52bcd33312 Declare sin & cos as readonly so they match the code in SelectionDAGBuild 
llvm-svn: 85853
 2009-11-03 02:19:31 +00:00
Anton Korobeynikov
ff29071cc6 Turn neon reg-reg moves fixup code into separate pass. This should reduce the compile time. 
llvm-svn: 85850
 2009-11-03 01:04:26 +00:00
Anton Korobeynikov
bce2703f18 Temporary xfail until PR5367 will be resolved 
llvm-svn: 85848
 2009-11-03 00:37:36 +00:00
Anton Korobeynikov
48b30c79be Revert r85049, it is causing PR5367 
llvm-svn: 85847
 2009-11-03 00:24:48 +00:00
Bob Wilson
7e071e14eb Revert previous change to a comment. The BlockAddresses go in the 
constant pool so they don't get wrapped separately.

llvm-svn: 85844
 2009-11-03 00:02:05 +00:00
Chris Lattner
00c9eb665d fix a nasty iterator invalidation bug from my conversion from 
std::map to DenseMap, exposed on release llvm-gcc bootstrap.

llvm-svn: 85840
 2009-11-02 23:25:39 +00:00