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Author SHA1 Message Date
Chris Lattner
7a63e7a7ad eliminate temporary vectors 
llvm-svn: 33713
 2007-01-31 20:07:32 +00:00
Chris Lattner
927653f27f eliminate temporary vectors 
llvm-svn: 33712
 2007-01-31 19:59:55 +00:00
Evan Cheng
1f3fc4b3f0 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
3aefeb957b eliminate a temporary vector while parsing gep's from bc files. 
llvm-svn: 33710
 2007-01-31 19:56:15 +00:00
Chris Lattner
37ebf9317b A relatively simple PPC optimization. 
llvm-svn: 33709
 2007-01-31 19:49:20 +00:00
Chris Lattner
79807c3dfe implement the new GEP instruction ctors. 
llvm-svn: 33708
 2007-01-31 19:47:18 +00:00
Evan Cheng
7169bd8784 Some comments. 
llvm-svn: 33707
 2007-01-31 18:29:27 +00:00
Evan Cheng
456928bbbc 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
4fc18a4cb8 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
5f8809078f 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
7ae4f5599e 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
143576ddd2 Specify the right CC for comparison libcalls. 
llvm-svn: 33702
 2007-01-31 09:30:58 +00:00
Evan Cheng
53026f1d5a 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
98aa8cbf4e 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.

llvm-svn: 33700
 2007-01-31 09:26:31 +00:00
Evan Cheng
491fcdb49b Observe -soft-float. 
llvm-svn: 33699
 2007-01-31 08:40:13 +00:00
Chris Lattner
0dbb13735e 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
d700d9dde4 shutdown at end of run 
llvm-svn: 33697
 2007-01-31 04:45:28 +00:00
Chris Lattner
55ce85c6f9 regenerate 
llvm-svn: 33696
 2007-01-31 04:44:08 +00:00
Chris Lattner
10aad380f9 eliminate a temporary vector 
llvm-svn: 33695
 2007-01-31 04:43:46 +00:00
Chris Lattner
64a2909f08 elimiante a temporary vector 
llvm-svn: 33694
 2007-01-31 04:42:05 +00:00
Chris Lattner
f96f4a874c eliminate temporary vectors 
llvm-svn: 33693
 2007-01-31 04:40:53 +00:00
Chris Lattner
302116a5ec 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
Chris Lattner
64488b1cc3 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.

llvm-svn: 33691
 2007-01-31 04:39:29 +00:00
Evan Cheng
345877e77c - 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
Reid Spencer
2970eeb003 Fix version information for new instructions. 
llvm-svn: 33689
 2007-01-31 01:18:59 +00:00
Chris Lattner
aa17576933 Move symbolic constant folding code to libanalysis. 
llvm-svn: 33688
 2007-01-31 00:53:10 +00:00
Chris Lattner
44d68b9af7 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
Reid Spencer
216b9e3896 Correct the instruction op codes to meet current head changes. 
llvm-svn: 33686
 2007-01-31 00:38:46 +00:00
Reid Spencer
8ad541d5a8 Excise documentation about Compaction Tables. 
llvm-svn: 33685
 2007-01-31 00:26:08 +00:00
Chris Lattner
373dee0947 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
86e359e5cb 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.

llvm-svn: 33682
 2007-01-30 23:47:35 +00:00
Chris Lattner
ec84c162d8 move constant folding code out of Utils/Local into libanalysis 
llvm-svn: 33681
 2007-01-30 23:46:43 +00:00
Chris Lattner
024f4ab383 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
2ae054adb0 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
14789a92e1 remove now-dead code. 
llvm-svn: 33678
 2007-01-30 23:29:47 +00:00
Chris Lattner
f94bed3f13 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
ad84a730ba 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
a94523df7b reformat comment 
llvm-svn: 33675
 2007-01-30 23:16:22 +00:00
Chris Lattner
e3eda25641 pass TD to constant folding apis 
llvm-svn: 33674
 2007-01-30 23:16:15 +00:00
Chris Lattner
8dbea5454d adjust to constant folding api changes. 
llvm-svn: 33673
 2007-01-30 23:15:43 +00:00
Chris Lattner
0d74d3c09b 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
6fc4b46d43 adjust to api change 
llvm-svn: 33671
 2007-01-30 23:14:52 +00:00
Chris Lattner
2c4610e4ca 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
Chris Lattner
1e6cf2ee3c 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.

llvm-svn: 33669
 2007-01-30 23:12:47 +00:00
Evan Cheng
421fdb2a7e Combine two tests. 
llvm-svn: 33668
 2007-01-30 23:06:22 +00:00
Evan Cheng
dd7a688bb8 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
2b15f2ba9d remove some bits that are not yet meant to land. 
llvm-svn: 33666
 2007-01-30 22:50:32 +00:00
Chris Lattner
4284f6463a 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
83f35170fa - 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
5301e7c605 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