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
Chris Lattner