e21903987f
Clean up some multiple-return-value code that is no longer
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applicable.
llvm-svn: 57033
2008-10-03 22:21:24 +00:00
ffc9da6772
remove redundant test (mayBeOverriden() includes hasLinkOnceLinkage)
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llvm-svn: 56786
2008-09-29 14:40:32 +00:00
08d91178e9
Rename isWeakForLinker to mayBeOverridden. Use it
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instead of hasWeakLinkage in a bunch of optimization
passes.
llvm-svn: 56782
2008-09-29 11:25:42 +00:00
a79db30d28
Tidy up several unbeseeming casts from pointer to intptr_t.
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llvm-svn: 55779
2008-09-04 17:05:41 +00:00
fa1211f69b
Enable first-class aggregates support.
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Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.
The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.
llvm-svn: 53941
2008-07-23 00:34:11 +00:00
0c71732497
Use a CallSite to find the nth argument of a call/invoke instruction instead of
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using getOperand() directly. This makes things work with invoke instructions as
well.
llvm-svn: 52489
2008-06-19 08:53:24 +00:00
fd17357643
Reapply r52397 (make IPConstProp promote returned arguments), but fixed this
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time. Sorry for the trouble!
This time, also add a testcase, which I should have done in the first place...
llvm-svn: 52455
2008-06-18 08:30:37 +00:00
97034598b1
Reapply r52396, it was unrelated to the breakage (that was caused by r52397, my
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commit after this).
llvm-svn: 52453
2008-06-18 08:09:27 +00:00
aecc3750d1
revert recent patch which is causing widespread breakage.
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llvm-svn: 52415
2008-06-17 17:06:43 +00:00
332836d68d
Learn IPConstProp to propagate arguments that are directly returned. Strictly
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speaking these are not constant values. However, when a function always returns
one of its arguments, then from the point of view of each caller the return
value is constant (or at least a known value) and can be replaced.
llvm-svn: 52397
2008-06-17 12:20:24 +00:00
f03c1ae407
Learn IPConstProp to look at individual return values and propagate them
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individually.
Also learn IPConstProp how returning first class aggregates work, in addition
to old style multiple return instructions.
Modify the return-constants testscase to confirm this behaviour.
llvm-svn: 52396
2008-06-17 12:02:52 +00:00
dbd595f22d
Fix PR2411, where ip constant prop would propagate the
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result of a weak function.
llvm-svn: 52137
2008-06-09 07:58:07 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
a82d691caa
simplify code for propagation of constant arguments into
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callees.
llvm-svn: 50142
2008-04-23 06:16:27 +00:00
5f1802cfdf
Fix a number of bugs in ipconstantprop, simplify the code, fit in 80 cols,
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fix read after free bug (PR2238).
llvm-svn: 50141
2008-04-23 05:59:23 +00:00
5ca2ea6479
Incorporate feedback.
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- Fix loop nest.
- Use RetVals.size()
- Check for null return value.
llvm-svn: 48605
2008-03-20 18:30:32 +00:00
7358165c99
Handle multiple ret values.
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llvm-svn: 48254
2008-03-11 22:24:29 +00:00
1bfd121321
Make Transforms to be 4.3 warnings-clean
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llvm-svn: 47371
2008-02-20 11:26:25 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
e7da2d6ac3
Fix typo in comment.
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llvm-svn: 36873
2007-05-06 13:37:16 +00:00
8c78a0bff0
Drop 'const'
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llvm-svn: 36662
2007-05-03 01:11:54 +00:00
e95c6ad802
Use 'static const char' instead of 'static const int'.
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Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
09f162ca6a
Do not use typeinfo to identify pass in pass manager.
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llvm-svn: 36632
2007-05-01 21:15:47 +00:00
557ab15e71
Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
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the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.
llvm-svn: 33939
2007-02-05 23:32:05 +00:00
5301e7c605
For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
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confusion with external linkage types.
llvm-svn: 33663
2007-01-30 20:08:39 +00:00
1631bcb1d4
Eliminate static ctors due to Statistic objects
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llvm-svn: 32693
2006-12-19 22:09:18 +00:00
700b873130
Detemplatize the Statistic class. The only type it is instantiated with
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is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
c2d3d3112e
eliminate RegisterOpt. It does the same thing as RegisterPass.
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llvm-svn: 29925
2006-08-27 22:42:52 +00:00
b1c9317bb4
Remove trailing whitespace
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llvm-svn: 21427
2005-04-21 23:48:37 +00:00
531f9e92d4
This mega patch converts us from using Function::a{iterator|begin|end} to
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using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
llvm-svn: 20597
2005-03-15 04:54:21 +00:00
263b0a1669
Only cound if we actually made a change.
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llvm-svn: 18800
2004-12-11 17:00:14 +00:00
5a8b003a09
Remove note to self
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llvm-svn: 17734
2004-11-14 06:57:47 +00:00
af555adc15
If a function always returns a constant, replace all calls sites with that
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constant value. This makes the return value dead and allows for
simplification in the caller.
This implements IPConstantProp/return-constant.ll
This triggers several dozen times throughout SPEC.
llvm-svn: 17730
2004-11-14 06:10:11 +00:00
9621dfab3f
Actually, leave the check in. This prevents us from counting dead arguments
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as IPCP opportunities.
llvm-svn: 17680
2004-11-11 07:47:54 +00:00
5fa696f8e4
Fix bug: IPConstantProp/deadarg.ll
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llvm-svn: 17679
2004-11-11 07:46:29 +00:00
c1d24cd859
Make IP Constant prop more aggressive about handling self recursive calls.
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This implements IPConstantProp/recursion.ll
llvm-svn: 17666
2004-11-10 19:43:59 +00:00
0d3773d8b1
Do not let dead constant expressions hanging off of functions prevent IPCP.
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This allows to elimination of a bunch of global pool descriptor args from
programs being pool allocated (and is also generally useful!)
llvm-svn: 17657
2004-11-09 20:47:30 +00:00
4f2cf030e8
'Pass' should now not be derived from by clients. Instead, they should derive
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from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
llvm-svn: 16436
2004-09-20 04:48:05 +00:00
7c16caa336
Changes For Bug 352
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Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
llvm-svn: 16137
2004-09-01 22:55:40 +00:00
199aeb7f59
Avoid an unnecessary isa<Constant>.
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llvm-svn: 14963
2004-07-18 08:31:18 +00:00
ef784f01dd
bug 122:
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- Minimize redundant isa<GlobalValue> usage
llvm-svn: 14948
2004-07-18 00:32:14 +00:00
f52e03c79e
Finegrainify namespacification
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llvm-svn: 10138
2003-11-21 21:54:22 +00:00
960707c335
Put all LLVM code into the llvm namespace, as per bug 109.
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llvm-svn: 9903
2003-11-11 22:41:34 +00:00
5e004e8ce0
Propagating constants to arguments can make other arguments constant. For now
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do something dumb, and inefficient, but more complete.
llvm-svn: 9542
2003-10-27 21:09:00 +00:00
12b78db685
We might as well strip off any CPRs before propagation
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llvm-svn: 9437
2003-10-23 18:49:23 +00:00
f516c698ff
Check in initial version of ipcp
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llvm-svn: 9423
2003-10-23 16:52:27 +00:00
Dan Gohman