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481 Commits

Author SHA1 Message Date
Chris Lattner
e4d5c441e0 This mega patch converts us from using Function::a{iterator|begin|end} to 
using Function::arg_{iterator|begin|end}.  Likewise Module::g* -> Module::global_*.

This patch is contributed by Gabor Greif, thanks!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20597 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-15 04:54:21 +00:00
Chris Lattner
fee3411379 trivial simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20494 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-06 21:35:38 +00:00
Chris Lattner
7acff25f7f second argument to Value::setName is now gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20463 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-05 19:05:20 +00:00
Chris Lattner
5f792c2c53 Add an optional argument to lower to a specific constant value instead of 
to a "sizeof" expression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20414 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 01:03:43 +00:00
Chris Lattner
da895d6337 Fix spelling, patch contributed by Gabor Greif! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20343 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 06:18:25 +00:00
Chris Lattner
be54dcc8a9 remove extraneous cast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20334 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-26 18:33:28 +00:00
Chris Lattner
623369ac56 Implement Transforms/SimplifyCFG/switch_thread.ll 
This does a simple form of "jump threading", which eliminates CFG edges that
are provably dead.  This triggers 90 times in the external tests, and
eliminating CFG edges is always always a good thing! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 06:17:52 +00:00
Chris Lattner
5551706b0f Adjust to changes in instruction interfaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19900 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-29 00:39:08 +00:00
Chris Lattner
378805969e switchinst ctor now takes a hint for the number of cases that it will have. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19898 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-29 00:38:26 +00:00
Chris Lattner
13b2f764c0 Implement SimplifyCFG/DeadSetCC.ll 
SimplifyCFG is one of those passes that we use for final cleanup: it should
not rely on other passes to clean up its garbage.  This fixes the "why are
trivially dead setcc's in the output of gccas" problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19212 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-01 16:02:12 +00:00
Chris Lattner
de97b5788c Get rid of getSizeOf, using ConstantExpr::getSizeOf instead. 
do not insert a prototype for malloc of: void* malloc(uint): on 64-bit u
targets this is not correct.  Instead of prototype it as void *malloc(...),
and pass the correct intptr_t through the "...".

Finally, fix Regression/CodeGen/SparcV9/2004-12-13-MallocCrash.ll, by not
forming constantexpr casts from pointer to uint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18908 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-13 20:00:02 +00:00
Chris Lattner
284d1b8827 The split bb is really the exit of the old function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18799 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-11 16:59:54 +00:00
Chris Lattner
7613437db9 Fix Regression/Transforms/SimplifyCFG/2004-12-10-SimplifyCFGCrash.ll, 
and the failure on make_dparser last night.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18766 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-10 17:42:31 +00:00
Reid Spencer
791a959e57 For PR387:\ 
Add doInitialization method to avoid overloaded virtuals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18602 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-12-07 08:11:36 +00:00
Chris Lattner
0f535c6fa8 Squelch warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18381 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-30 07:47:34 +00:00
Chris Lattner
5a85d9c664 Fix test/Regression/Transforms/LICM/2004-09-14-AliasAnalysisInvalidate.llx 
This only fails on darwin or on X86 under valgrind.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18377 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-30 07:01:15 +00:00
Chris Lattner
6f9e571529 Alkis noticed that this variable is dead. Thanks! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18369 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-30 04:01:44 +00:00
Chris Lattner
37dc938bbe If we have something like this: 
if (x) {
    code
    ...
  } else {
    code
    ...
  }

Turn it into:

  code
  if (x) {
    ...
  } else {
    ...
  }

This reduces code size and in some common cases allows us to completely
eliminate the conditional.  This turns several if/then/else blocks in loops
into straightline code in 179.art, turning the loops into single basic blocks
(good for modsched even!).

Maybe now brg will leave me alone ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18366 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-30 00:29:14 +00:00
Misha Brukman
e74c73cf46 Allow constructor parameter to override aggregating args; fix spacing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18028 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-20 02:20:27 +00:00
Chris Lattner
0c3b390a54 Lazily create the abort message, so only translation units that use unwind 
will actually get it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17700 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 19:07:32 +00:00
Chris Lattner
9ecc046184 Fix: CodeExtractor/2004-11-12-InvokeExtract.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17699 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 00:06:45 +00:00
Chris Lattner
68c311aac6 Fix a bug where the code extractor would get a bit confused handling invoke 
instructions, setting DefBlock to a block it did not have dom info for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17697 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 23:50:44 +00:00
Chris Lattner
44c94b9671 Simplify handling of constant initializers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17696 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 22:42:57 +00:00
Chris Lattner
bfd3e52701 Do not compute the predecessor list for a block unless we need it. 
This speeds up simplifycfg on this program, from 44.87s to 0.29s (with
a profiled build):

 #define CL0(a) case a: goto c;
 #define CL1(a) CL0(a##0) CL0(a##1) CL0(a##2) CL0(a##3) CL0(a##4) CL0(a##5) \
 CL0(a##6) CL0(a##7) CL0(a##8) CL0(a##9)
 #define CL2(a) CL1(a##0) CL1(a##1) CL1(a##2) CL1(a##3) CL1(a##4) CL1(a##5) \
 CL1(a##6) CL1(a##7) CL1(a##8) CL1(a##9)
 #define CL3(a) CL2(a##0) CL2(a##1) CL2(a##2) CL2(a##3) CL2(a##4) CL2(a##5) \
 CL2(a##6) CL2(a##7) CL2(a##8) CL2(a##9)
 #define CL4(a) CL3(a##0) CL3(a##1) CL3(a##2) CL3(a##3) CL3(a##4) CL3(a##5) \
 CL3(a##6) CL3(a##7) CL3(a##8) CL3(a##9)

 void f();

 void a() {
     int b;
  c: switch (b) {
         CL4(1)
     }
 }

This testcase is contrived to expose N^2 behavior, but this patch should speedup
simplifycfg on any programs that use large switch statements.  This testcase
comes from GCC PR17895.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 06:53:58 +00:00
Reid Spencer
6cb21d443e Change Library Names Not To Conflict With Others When Installed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17286 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-27 23:18:45 +00:00
Reid Spencer
4e073a871b Eliminate compilation warning on uninitialized variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17163 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-22 16:10:39 +00:00
Reid Spencer
cac731ecbe We won't use automake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17155 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-22 03:35:04 +00:00
Reid Spencer
86d341b204 Initial automake generated Makefile template 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17136 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-18 23:55:41 +00:00
Reid Spencer
17e6e44298 Correction to allow compilation with Visual C++. 
Patch contributed by Morten Ofstad. Thanks Morten!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17123 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-18 14:38:48 +00:00
Chris Lattner
698f96f7c8 Simplify code by deleting instructions that preceed unreachable instructions. 
Simplify code by simplifying terminators that branch to blocks that start
with an unreachable instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17116 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-18 04:07:22 +00:00
Chris Lattner
28e792c232 Fix a bug that occurs when the constant value is the result of an invoke. In 
particular, invoke ret values are only live in the normal dest of the invoke
not in the unwind dest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17108 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-18 01:21:17 +00:00
Chris Lattner
3787e765fa Fix Regression/Transforms/Inline/2004-10-17-InlineFunctionWithoutReturn.ll 
If a function had no return instruction in it, and the result of the inlined
call instruction was used, we would crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17104 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 23:21:07 +00:00
Chris Lattner
7e40f63428 When inserting PHI nodes, don't insert any phi nodes that are obviously 
unneccesary.  This allows us to delete several hundred phi nodes of the
form PHI(x,x,x,undef) from 253.perlbmk and probably other programs as well.

This implements Mem2Reg/UndefValuesMerge.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17098 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 21:25:56 +00:00
Chris Lattner
8143c2bc0d Enhance hasConstantValue to ignore undef values in phi nodes. This allows it 
to think that PHI[4, undef] == 4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17096 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 21:23:26 +00:00
Chris Lattner
c30bda7540 hasConstantValue will soon return instructions that don't dominate the PHI node, 
so prepare for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17095 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 21:22:38 +00:00
Chris Lattner
ec7c1ab1da Add support for unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17056 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:21:33 +00:00
Chris Lattner
82731c793a Add support for UndefValue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17046 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:10:31 +00:00
Chris Lattner
b20724dff4 When promoting mem2reg, make uninitialized values become undef isntead of 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17045 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:10:06 +00:00
Chris Lattner
9c07866ef8 When converting phi nodes into select instructions, we shouldn't promote PHI 
nodes unless we KNOW that we are able to promote all of them.

This fixes: test/Regression/Transforms/SimplifyCFG/PhiNoEliminate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16973 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 05:13:36 +00:00
Reid Spencer
d96cb6eaa0 Update to reflect changes in Makefile rules. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16950 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-13 11:46:52 +00:00
Reid Spencer
81f76b324e Initial version of automake Makefile.am file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16893 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 22:20:40 +00:00
Chris Lattner
0ed7f42c1b Do not insert trivially dead select instructions, which allows us to 
potentially fold more in one pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16583 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-29 05:43:32 +00:00
Alkis Evlogimenos
200a360ec6 Pull assignment out of for loop conditional in order for this to 
compile under windows. Patch contributed by Paolo Invernizzi!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16534 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-28 02:40:37 +00:00
Chris Lattner
4b50156049 Prototype these functions more accurately 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16432 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-20 04:43:15 +00:00
Chris Lattner
a744b77e11 Remove a whole bunch of horrible hacky code that was used to promote allocas 
whose addresses where used by trivial phi nodes and select instructions.  This
is now performed by the instcombine pass, which is more powerful, is much
simpler, and is faster.  This allows the deletion of a bunch of code, two
FIXME's and two gotos.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-19 18:51:51 +00:00
Chris Lattner
afbb1ccd2f Make sure to remove the Select instruction as well 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-18 00:32:40 +00:00
Reid Spencer
2da5c3dda6 Convert code to compile with vc7.1. 
Patch contributed by Paolo Invernizzi. Thanks Paolo!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16368 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-15 17:06:42 +00:00
Chris Lattner
62e29b59f5 If given an AliasSetTracker object to update, update it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16347 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-15 01:02:54 +00:00
Alkis Evlogimenos
20aa474f8f Fixes to make LLVM compile with vc7.1. 
Patch contributed by Paolo Invernizzi!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16152 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-03 18:19:51 +00:00
Reid Spencer
551ccae044 Changes For Bug 352 
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/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00