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Author SHA1 Message Date
Reid Spencer
bf4956bcc4 Use APInt safe isOne() method on ConstantInt instead of getZExtValue()==1 
llvm-svn: 34854
 2007-03-02 23:03:17 +00:00
Reid Spencer
0f63188d6a Make sorting of ConstantInt be APInt clean through use of ult function. 
llvm-svn: 34853
 2007-03-02 23:01:14 +00:00
Reid Spencer
3e3980a403 Fix ashr for bitwidths > 64. This is now validated up to 1024 bits. 
llvm-svn: 34852
 2007-03-02 22:39:11 +00:00
Anton Korobeynikov
af46a0e4a2 Fix uninitialized use of variable. Remove tabs and fix identation. 
llvm-svn: 34850
 2007-03-02 22:19:41 +00:00
Anton Korobeynikov
7cec92bcd2 Simplify things 
llvm-svn: 34849
 2007-03-02 21:50:27 +00:00
Chris Lattner
e11cd0460a Fix a significant algorithm problem with the instcombine worklist. removing 
a value from the worklist required scanning the entire worklist to remove all
entries.  We now use a combination map+vector to prevent duplicates from
happening and prevent the scan.  This speeds up instcombine on a large file
from the llvm-gcc bootstrap from 189.7s to 4.84s in a debug build and from
5.04s to 1.37s in a release build.

llvm-svn: 34848
 2007-03-02 21:28:56 +00:00
Chris Lattner
fb4d1a6437 minor cleanup 
llvm-svn: 34846
 2007-03-02 19:59:19 +00:00
Chris Lattner
68244ce570 Fix PR1234 by working around a compiler bug. 
llvm-svn: 34845
 2007-03-02 18:16:29 +00:00
Evan Cheng
9dddb88209 Mark dead def as unused. 
llvm-svn: 34844
 2007-03-02 10:43:16 +00:00
Evan Cheng
5bd925036c Dead live-in detection bug. 
llvm-svn: 34843
 2007-03-02 10:41:15 +00:00
Evan Cheng
ce6c3c3004 Add a new test case. 
llvm-svn: 34842
 2007-03-02 10:37:19 +00:00
Evan Cheng
e2802973eb - Keep track all def and uses of stack slot available in register. 
- Available value use may be deleted (e.g. noop move).

llvm-svn: 34841
 2007-03-02 08:52:00 +00:00
Chris Lattner
afea22c955 testcase for PR1233 
llvm-svn: 34840
 2007-03-02 07:29:59 +00:00
Evan Cheng
622db28794 Invalidate last use of a reused register if the use is a deleted noop copy. 
llvm-svn: 34839
 2007-03-02 05:41:42 +00:00
Chris Lattner
55dcf58453 argument lowering should copy from the vreg shadows of live-in arguments 
passed in registers, not directly from the pregs themselves.

llvm-svn: 34838
 2007-03-02 05:12:29 +00:00
Chris Lattner
e29ef5d9cb add a note 
llvm-svn: 34837
 2007-03-02 05:04:52 +00:00
Owen Anderson
6d3b179de3 Fix a typo. 
llvm-svn: 34836
 2007-03-02 05:03:07 +00:00
Reid Spencer
6d483da6c0 Use a better algorithm for rounding sqrt results. Change the FIXME about 
this to a NOTE: because pari/gp results start to get rounded incorrectly
after 192 bits of precision. APInt and pari/gp never differ by more than
1, but APInt is more accurate because it does not lose precision after 192
bits as does pari/gp.

llvm-svn: 34834
 2007-03-02 04:21:55 +00:00
Nick Lewycky
29f7380f34 Implement unionWith. 
llvm-svn: 34833
 2007-03-02 03:33:05 +00:00
Chris Lattner
4fbb8286bf switch the inliner from being recursive to being iterative. 
llvm-svn: 34832
 2007-03-02 03:11:20 +00:00
Reid Spencer
89154fbfff Fix an unequal bitwidth issue. 
llvm-svn: 34831
 2007-03-02 02:59:25 +00:00
Chris Lattner
889f590aa8 grammaro 
llvm-svn: 34830
 2007-03-02 02:57:34 +00:00
Evan Cheng
44257955c8 Make it 64-bit safe. 
llvm-svn: 34829
 2007-03-02 02:31:37 +00:00
Reid Spencer
39b817765b Add a FIXME 
llvm-svn: 34828
 2007-03-02 02:01:34 +00:00
Reid Spencer
1be4796f45 Fix a typo. 
llvm-svn: 34826
 2007-03-02 01:31:31 +00:00
Reid Spencer
eabc981a60 Fix a problem where shifting by 64-bits leads to incorrect results on PPC 
but not on X86 becuase shift by word size is "undefined".

llvm-svn: 34825
 2007-03-02 01:19:42 +00:00
Dale Johannesen
a6003a9eb6 eliminate unnecessary reset of SP in epilog on darwin 
llvm-svn: 34824
 2007-03-02 01:17:17 +00:00
Reid Spencer
2814c17704 Reverse a premature commital. 
llvm-svn: 34822
 2007-03-02 00:31:39 +00:00
Reid Spencer
1f970769e8 Prefer non-virtual calls to ConstantInt::isZero over virtual calls to 
Constant::isNullValue() in situations where it is possible.

llvm-svn: 34821
 2007-03-02 00:28:52 +00:00
Reid Spencer
53a673b3ed Add a non-virtual test for zero, isZero, and rename isUnitValue isOne. 
These will be used in upcoming patches to avoid virtual function call when
the client knows it is a ConstantInt.

llvm-svn: 34820
 2007-03-02 00:27:06 +00:00
Reid Spencer
d86182b19b Add an abs() function to get the absolute value. 
llvm-svn: 34819
 2007-03-01 23:37:09 +00:00
Reid Spencer
f8f8413839 Combine two lines that can be. 
llvm-svn: 34818
 2007-03-01 23:30:25 +00:00
Reid Spencer
c5d33cef76 Remove virtual keyword from method that doesn't need to be virtual. 
llvm-svn: 34817
 2007-03-01 23:20:52 +00:00
Reid Spencer
ee77d22f26 Make it possible to create an SCEVUnknown from an APInt as well as an int. 
llvm-svn: 34816
 2007-03-01 22:28:51 +00:00
Reid Spencer
e5456dea52 Although probably not necessary, guard against a potential assertion by 
using isNullValue() instead of getZExtValue() == 0.

llvm-svn: 34815
 2007-03-01 21:54:37 +00:00
Reid Spencer
3a7689fe22 Use isUnitValue() instead of getZExtValue() == 1 which will prevent an 
assert if the ConstantInt's value is large.

llvm-svn: 34814
 2007-03-01 21:51:23 +00:00
Reid Spencer
2ce72a4bd8 Add an isUnitValue method for comparison against 1. This just follows a 
common pattern with isNullValue, isAllOnesValue, etc. It also helps to
prevent things like getZExtValue() == 1, which could assert for large
bitwidths.

llvm-svn: 34813
 2007-03-01 21:50:41 +00:00
Owen Anderson
070c37407c Use GCC intrinsics when available, and use smarter fallbacks when not. 
llvm-svn: 34812
 2007-03-01 21:16:30 +00:00
Reid Spencer
0814741c79 Clarify the use of getValue/getSExtValue/getZExtValue and add the new 
APInt constructor.

llvm-svn: 34811
 2007-03-01 21:05:33 +00:00
Reid Spencer
327ae8b712 Use APInt conversion to string so the result is correct regardless of the 
bit width of the ConstantInt being converted.

llvm-svn: 34810
 2007-03-01 21:00:32 +00:00
Reid Spencer
b7ff81c0dc Make output for ConstantInt construction correct for any bitwidth. 
llvm-svn: 34809
 2007-03-01 20:55:43 +00:00
Reid Spencer
5790924b21 Use the APInt versions of the bit-wise conversions of float/double to int 
and back. While this is not strictly necessary, it does pave the way for
future changes in casting. It should now be possible to improve vector
casting to deal with un-equal fp/int sizes.

llvm-svn: 34808
 2007-03-01 20:44:23 +00:00
Reid Spencer
003170430b Add doubleToBits and floatToBits methods. 
llvm-svn: 34807
 2007-03-01 20:39:01 +00:00
Reid Spencer
5d9574f37e Use modern variable name. ConstantUnsignedInt is long since dead. No 
functional change with this patch.

llvm-svn: 34806
 2007-03-01 20:27:41 +00:00
Jim Laskey
0b6492d5df Emit eh filter info. 
llvm-svn: 34805
 2007-03-01 20:26:43 +00:00
Jim Laskey
73e3ad1b10 Collect eh filter info. 
llvm-svn: 34804
 2007-03-01 20:25:32 +00:00
Reid Spencer
d7c97384ac Use a simpler constructor for ConstantInt. 
llvm-svn: 34803
 2007-03-01 20:25:31 +00:00
Jim Laskey
5f932644e9 Lower eh filter intrinsic. 
llvm-svn: 34802
 2007-03-01 20:24:30 +00:00
Jim Laskey
88c98a4128 Add eh filter intrinsic. 
llvm-svn: 34801
 2007-03-01 20:23:39 +00:00
Reid Spencer
90b6227b81 Add bitsToDouble and bitsToFloat methods for re-interpretation of bits as FP. 
llvm-svn: 34800
 2007-03-01 20:06:51 +00:00