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Author SHA1 Message Date
Evan Cheng
c0dbec7e10 When determining whether a pc relative branch / load displacement fits in the 
instruction field, adjust it for PC value (4 for thumb, 8 for arm).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33711 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:57:44 +00:00
Chris Lattner
4c3d3a99d5 eliminate a temporary vector while parsing gep's from bc files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:56:15 +00:00
Chris Lattner
95b9d6e5d8 A relatively simple PPC optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33709 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:49:20 +00:00
Chris Lattner
6ffbe17b3c implement the new GEP instruction ctors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33708 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:47:18 +00:00
Evan Cheng
a9b8b8d62c Some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33707 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:29:27 +00:00
Evan Cheng
934536dab2 ConstPool island bug: watch out for cases where UserMI is the last MI of the BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33706 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:19:07 +00:00
Chris Lattner
a88d6ca6f9 Revert another incorrectly applied chunk, which fixes InstCombine/vec_insert_to_shuffle.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33705 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:09:17 +00:00
Chris Lattner
ad58eb3434 Fix a minor bug in my patch yesterday that broken ConstProp/bswap.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:04:55 +00:00
Lauro Ramos Venancio
b5b84f92bf ARM fix: Miscompilation when frame pointer can't be eliminated. Uninitialized frame pointer register is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 13:12:46 +00:00
Evan Cheng
193f850880 Specify the right CC for comparison libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33702 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 09:30:58 +00:00
Evan Cheng
d385fd62cb Allow the target to override the ISD::CondCode that's to be used to test the 
result of the comparison libcall against zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 09:29:11 +00:00
Evan Cheng
991d3616c8 Added O_F32 and O_64 in addition to UO_F32 and UO_64 even though by 
default they call the same libgcc routine. The result of the calls are
"tested" differently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 09:26:31 +00:00
Evan Cheng
b6ab2547cb Observe -soft-float. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33699 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 08:40:13 +00:00
Chris Lattner
b85210f508 minor cleanups. Fix off-by-one in accounting the number of nodes when the 
table grows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33698 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 06:04:41 +00:00
Chris Lattner
0331524555 shutdown at end of run 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33697 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:45:28 +00:00
Chris Lattner
f7469af5a2 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33696 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:44:08 +00:00
Chris Lattner
e013540654 eliminate a temporary vector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:43:46 +00:00
Chris Lattner
d917fe5692 elimiante a temporary vector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33694 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:42:05 +00:00
Chris Lattner
55eb1c47de eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33693 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:40:53 +00:00
Chris Lattner
2b9a5daf7c Revise APIs for creating constantexpr GEPs to not require the use of vectors. 
This allows us to eliminate many temporary vectors, and theirassociated malloc/free pairs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33692 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:40:28 +00:00
Chris Lattner
fb11053815 Revise APIs for creating constantexpr GEPs to not require the use of 
vectors.  This allows us to eliminate many temporary vectors, and their
associated malloc/free pairs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33691 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:39:29 +00:00
Evan Cheng
0c61584d05 - Added Thumb constpool island support. 
- Islands are inserted right after the user MI since thumb LDR cannot encode
  negative offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33690 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 02:22:22 +00:00
Reid Spencer
4c16069a44 Fix version information for new instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33689 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 01:18:59 +00:00
Chris Lattner
a4f4659865 Move symbolic constant folding code to libanalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:53:10 +00:00
Chris Lattner
03dd25ca96 Move some symbolic constant folding code out of instcombine into a place 
it can be used by multiple clients.  This specifically allows the inliner
to constant fold symbolically.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:51:48 +00:00
Reid Spencer
fec152b649 Correct the instruction op codes to meet current head changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33686 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:38:46 +00:00
Reid Spencer
c4a8d39614 Excise documentation about Compaction Tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33685 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:26:08 +00:00
Chris Lattner
2e3a1d137c The local "ConstantFold" method is now just a watered down version of 
ConstantFoldInstOperands.  Switch to ConstantFoldInstOperands and remove
ConstantFold.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33683 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:52:44 +00:00
Chris Lattner
c3ce689374 Make this a *real* header: 
1. Remove using namespace llvm;
  2. Remove unneeded #includes.
  3. Add #include guard.

Also add prototypes for new code moved from transformutils to libanalysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33682 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:47:35 +00:00
Chris Lattner
997c74ce35 move constant folding code out of Utils/Local into libanalysis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33681 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:46:43 +00:00
Chris Lattner
79066fa6ac Adjust #includes to match movement of constant folding code from transformutils to libanalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33680 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:46:24 +00:00
Chris Lattner
5520732b24 move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into 
libanalysis/ConstantFolding.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33679 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:45:45 +00:00
Chris Lattner
4973190b07 remove now-dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33678 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:29:47 +00:00
Chris Lattner
ff2dad3128 the inliner pass now passes targetdata down through the inliner api's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33677 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:28:39 +00:00
Chris Lattner
1dfdf8255e The inliner/cloner can now optionally take TargetData info, which can be 
used by constant folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:22:39 +00:00
Chris Lattner
3cab071f6f reformat comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33675 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:16:22 +00:00
Chris Lattner
0a19ffaf58 pass TD to constant folding apis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33674 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:16:15 +00:00
Chris Lattner
72d88ae544 adjust to constant folding api changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33673 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:15:43 +00:00
Chris Lattner
cd2492e6ff use smallvector instead of vector to make constant folding a bit more efficient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:15:19 +00:00
Chris Lattner
6c1f56574c adjust to api change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33671 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:14:52 +00:00
Chris Lattner
9fa038dc21 Change constant folding APIs to take an optional TargetData, and change 
ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.

In some cases, switch to using a SmallVector instead of a vector.
This allows us to get rid of some special case gross code that was there
to avoid the cost of constructing a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33670 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:13:49 +00:00
Chris Lattner
73259caa44 Change constant folding APIs to take an optional TargetData, and change 
ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33669 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:12:47 +00:00
Evan Cheng
f08c0eab15 Combine two tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:06:22 +00:00
Evan Cheng
36640905e1 During PEI, if the immediate value of sp + offset is too large (i.e. something 
that would require > 3 instructions to materialize), load the immediate from a
constpool entry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33667 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:01:46 +00:00
Chris Lattner
db43c63389 remove some bits that are not yet meant to land. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33666 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 22:50:32 +00:00
Chris Lattner
c5eff4488b Symbolically evaluate constant expressions like &A[123] - &A[4].f. 
This occurs in C++ code like:

#include <iostream>
#include <iterator>
int a[] = { 1, 2, 3, 4, 5 };
int main() {
  using namespace std;
  copy(a, a + sizeof(a)/sizeof(a[0]), ostream_iterator<int>(cout, "\n"));
  return 0;
}

Before we would decide the loop trip count is:
sdiv (i32 sub (i32 ptrtoint (i32* getelementptr ([5 x i32]* @a, i32 0, i32 5) to i32), i32 ptrtoint ([5 x i32]* @a to i32)), i32 4)

Now we decide it is "5".  Amazing.

This code will need to be refactored, but I'm doing that as a separate
commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33665 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 22:32:46 +00:00
Evan Cheng
c60e76d139 - Fix codegen for pc relative constant (e.g. JT) in thumb mode: 
.set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        add r1, pc, #PCRELV0
This is not legal since add r1, pc, #c requires the constant be a multiple of 4.
Do the following instead:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        mov r1, #PCRELV0
        add r1, pc

- In thumb mode, it's not possible to use .set generate a pc relative stub
  address. The stub is ARM code which is in a different section from the thumb
  code. Load the value from a constpool instead.
- Some asm printing clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33664 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 20:37:08 +00:00
Reid Spencer
5cbf985dcb For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33663 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 20:08:39 +00:00
Reid Spencer
2574fe5a22 Compaction tables no longer supported, remove its block ID. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33662 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 19:37:26 +00:00
Reid Spencer
d2bb887cd1 Bye, Bye Compaction Tables. The benefit compaction tables provides doesn't 
outweight its computational costs. This patch removes all compaction
table handling from the bcreader and bcwriter. For the record, here's the
difference betweeen having and not having compaction tables for some tests:

Test             With       Without   Size Chg
Olden/mst       5,602         5,598      +0.1%
viterbi        18,026        17,795      +1.3%
obsequi       162,133       166,663      -2.8%
burg          224,090       228,148      -1.8%
kimwitu++   4,933,263     5,121,159      -3.8%
176.gcc     8,470,424     9,141,539      -7.3%

It seems that it is more beneficial to larger files, but even on the largest
test case we have (176.gcc) it only amounts ot an I/O saving of 7.3%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33661 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 19:36:46 +00:00