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0ce094c7a8
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16965 Commits

Author SHA1 Message Date
Evan Cheng
0ce094c7a8 Add entry. 
llvm-svn: 33723
 2007-01-31 22:11:38 +00:00
Evan Cheng
41bee13a0e Thumb add sp, #imm requires the immediate value be multiple of 4. For now, 
change preferred alignment of short, byte, bool to 4.

llvm-svn: 33722
 2007-01-31 22:08:40 +00:00
Evan Cheng
476cd5c2d1 Update comment. 
llvm-svn: 33721
 2007-01-31 22:06:44 +00:00
Evan Cheng
8596afac45 Dead comment. 
llvm-svn: 33719
 2007-01-31 21:31:25 +00:00
Reid Spencer
6d6e7a072b Add some debug output. 
llvm-svn: 33718
 2007-01-31 21:27:38 +00:00
Evan Cheng
a08ef111bb Thumb asm syntax does not want 's' suffix for flag setting opcodes. 
llvm-svn: 33717
 2007-01-31 20:12:31 +00:00
Chris Lattner
bebab8c026 remove temporary vectors. 
llvm-svn: 33715
 2007-01-31 20:08:52 +00:00
Chris Lattner
237fa61eb7 eliminate temporary vectors 
llvm-svn: 33713
 2007-01-31 20:07:32 +00:00
Chris Lattner
8b052ca7d0 eliminate temporary vectors 
llvm-svn: 33712
 2007-01-31 19:59:55 +00:00
Evan Cheng
1df8529721 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).

llvm-svn: 33711
 2007-01-31 19:57:44 +00:00
Chris Lattner
539d9c81fd eliminate a temporary vector while parsing gep's from bc files. 
llvm-svn: 33710
 2007-01-31 19:56:15 +00:00
Chris Lattner
084d1d8706 A relatively simple PPC optimization. 
llvm-svn: 33709
 2007-01-31 19:49:20 +00:00
Chris Lattner
55e5440018 implement the new GEP instruction ctors. 
llvm-svn: 33708
 2007-01-31 19:47:18 +00:00
Evan Cheng
f6e0e6cada Some comments. 
llvm-svn: 33707
 2007-01-31 18:29:27 +00:00
Evan Cheng
16edf4f9bf ConstPool island bug: watch out for cases where UserMI is the last MI of the BB. 
llvm-svn: 33706
 2007-01-31 18:19:07 +00:00
Chris Lattner
b32b59cd84 Revert another incorrectly applied chunk, which fixes InstCombine/vec_insert_to_shuffle.ll 
llvm-svn: 33705
 2007-01-31 18:09:17 +00:00
Chris Lattner
46ce2a4cca Fix a minor bug in my patch yesterday that broken ConstProp/bswap.ll 
llvm-svn: 33704
 2007-01-31 18:04:55 +00:00
Lauro Ramos Venancio
e22bc8635e ARM fix: Miscompilation when frame pointer can't be eliminated. Uninitialized frame pointer register is used. 
llvm-svn: 33703
 2007-01-31 13:12:46 +00:00
Evan Cheng
608ad034b0 Specify the right CC for comparison libcalls. 
llvm-svn: 33702
 2007-01-31 09:30:58 +00:00
Evan Cheng
3ec2e08a37 Allow the target to override the ISD::CondCode that's to be used to test the 
result of the comparison libcall against zero.

llvm-svn: 33701
 2007-01-31 09:29:11 +00:00
Evan Cheng
e5f5439313 Observe -soft-float. 
llvm-svn: 33699
 2007-01-31 08:40:13 +00:00
Chris Lattner
b8f4cada84 minor cleanups. Fix off-by-one in accounting the number of nodes when the 
table grows.

llvm-svn: 33698
 2007-01-31 06:04:41 +00:00
Chris Lattner
0deac2a51d regenerate 
llvm-svn: 33696
 2007-01-31 04:44:08 +00:00
Chris Lattner
b0a0d4f999 eliminate a temporary vector 
llvm-svn: 33695
 2007-01-31 04:43:46 +00:00
Chris Lattner
9888e0a048 elimiante a temporary vector 
llvm-svn: 33694
 2007-01-31 04:42:05 +00:00
Chris Lattner
f456997cb6 eliminate temporary vectors 
llvm-svn: 33693
 2007-01-31 04:40:53 +00:00
Chris Lattner
b5aa990588 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.

llvm-svn: 33692
 2007-01-31 04:40:28 +00:00
Evan Cheng
0ee9a27976 - Added Thumb constpool island support. 
- Islands are inserted right after the user MI since thumb LDR cannot encode
  negative offset.

llvm-svn: 33690
 2007-01-31 02:22:22 +00:00
Chris Lattner
eb3d93c6a8 Move symbolic constant folding code to libanalysis. 
llvm-svn: 33688
 2007-01-31 00:53:10 +00:00
Chris Lattner
be153e31f3 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.

llvm-svn: 33687
 2007-01-31 00:51:48 +00:00
Chris Lattner
937bf05f43 The local "ConstantFold" method is now just a watered down version of 
ConstantFoldInstOperands.  Switch to ConstantFoldInstOperands and remove
ConstantFold.

llvm-svn: 33683
 2007-01-30 23:52:44 +00:00
Chris Lattner
7db51ec161 Adjust #includes to match movement of constant folding code from transformutils to libanalysis. 
llvm-svn: 33680
 2007-01-30 23:46:24 +00:00
Chris Lattner
1765c2eed8 move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into 
libanalysis/ConstantFolding.cpp.

llvm-svn: 33679
 2007-01-30 23:45:45 +00:00
Chris Lattner
4c01d0055a remove now-dead code. 
llvm-svn: 33678
 2007-01-30 23:29:47 +00:00
Chris Lattner
a49a1d15dc the inliner pass now passes targetdata down through the inliner api's 
llvm-svn: 33677
 2007-01-30 23:28:39 +00:00
Chris Lattner
23628987e2 The inliner/cloner can now optionally take TargetData info, which can be 
used by constant folding.

llvm-svn: 33676
 2007-01-30 23:22:39 +00:00
Chris Lattner
6bd1447e03 reformat comment 
llvm-svn: 33675
 2007-01-30 23:16:22 +00:00
Chris Lattner
d1acbffe1b pass TD to constant folding apis 
llvm-svn: 33674
 2007-01-30 23:16:15 +00:00
Chris Lattner
116b82d058 adjust to constant folding api changes. 
llvm-svn: 33673
 2007-01-30 23:15:43 +00:00
Chris Lattner
129e04aa43 use smallvector instead of vector to make constant folding a bit more efficient 
llvm-svn: 33672
 2007-01-30 23:15:19 +00:00
Chris Lattner
58e09aa521 adjust to api change 
llvm-svn: 33671
 2007-01-30 23:14:52 +00:00
Chris Lattner
659afcca15 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.

llvm-svn: 33670
 2007-01-30 23:13:49 +00:00
Evan Cheng
26ee4f882b 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.

llvm-svn: 33667
 2007-01-30 23:01:46 +00:00
Chris Lattner
27f0acaaec remove some bits that are not yet meant to land. 
llvm-svn: 33666
 2007-01-30 22:50:32 +00:00
Chris Lattner
b1ada91005 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.

llvm-svn: 33665
 2007-01-30 22:32:46 +00:00
Evan Cheng
0f07707270 - 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.

llvm-svn: 33664
 2007-01-30 20:37:08 +00:00
Reid Spencer
19af04a142 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.

llvm-svn: 33663
 2007-01-30 20:08:39 +00:00
Reid Spencer
00309bbef6 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%.

llvm-svn: 33661
 2007-01-30 19:36:46 +00:00
Evan Cheng
5e0f0364d0 Copy and paste bug. 
llvm-svn: 33658
 2007-01-30 08:22:33 +00:00
Evan Cheng
3f02e5b1e7 Darwin -static should codegen static ctors / dtors to .constructor / .destructor sections. 
llvm-svn: 33657
 2007-01-30 08:04:53 +00:00