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Author SHA1 Message Date
Chris Lattner
b77bda4432 * Further cleanup. 
* Test for whether bits are shifted out during the optzn.

If so, the fold is illegal, though it can be handled explicitly for setne/seteq

This fixes the miscompilation of 254.gap last night, which was a latent bug
exposed by other optimizer improvements.

llvm-svn: 15085
 2004-07-21 20:14:10 +00:00
Misha Brukman
7507403c2b * Fix printing of signed immediate values (Nate Begeman) 
* Fix printing of `zeroinitializer'
* Fix printing of `linkonce' globals, complete with stubs

llvm-svn: 15084
 2004-07-21 20:11:11 +00:00
Misha Brukman
64f203922d * Fix printing of signed immediate values 
* Generation of opcodes that take 16 bit immediates
* Rewrote multiply to be correct for 64 bit values
* Rewrote all the long handling to be correct for PowerPC
* Fix visitSelectInst() to define the upper register of the pair of regs
  representing a long value

Patch contributed by Nate Begeman.

llvm-svn: 15083
 2004-07-21 20:09:08 +00:00
Chris Lattner
a3c10c2012 Make cast-cast code a bit more defensive 
"simplify" a bit of code for comparison/and folding

llvm-svn: 15082
 2004-07-21 19:50:44 +00:00
Misha Brukman
752584b520 Use addSImm() instead of addImm() for stack offsets, which may be negative. 
llvm-svn: 15081
 2004-07-21 19:36:57 +00:00
Misha Brukman
77e3529f65 Reid doesn't need a definite article in front of his name. 
llvm-svn: 15080
 2004-07-21 18:04:27 +00:00
Misha Brukman
f420620da9 Delete extra space; add <p> tags around text within a <div> 
llvm-svn: 15079
 2004-07-21 18:02:43 +00:00
Alkis Evlogimenos
40d8d044fe Fix analysis name. 
llvm-svn: 15078
 2004-07-21 17:23:44 +00:00
Misha Brukman
3d395cbda3 Add SUBI instruction 
llvm-svn: 15077
 2004-07-21 15:53:04 +00:00
Misha Brukman
f432931d8c Fix spelling of `iterative scan' 
llvm-svn: 15075
 2004-07-21 12:53:14 +00:00
Misha Brukman
bfa2cebdc6 * Uncomment rule for location of LLI (formerly commented out: typo?) 
* Add space between VAR and `='

llvm-svn: 15074
 2004-07-21 12:47:40 +00:00
Alkis Evlogimenos
183f8af791 Clear spilled list at once. Remove unused vector. 
llvm-svn: 15073
 2004-07-21 12:00:10 +00:00
Alkis Evlogimenos
c767432a26 Change std::list into a std::vector for IntervalSets. This reduces 
compile time for 176.gcc from 5.6 secs to 4.7 secs.

llvm-svn: 15072
 2004-07-21 09:46:55 +00:00
Alkis Evlogimenos
441f3a155d Add greater_ptr functor. 
llvm-svn: 15070
 2004-07-21 08:38:06 +00:00
Alkis Evlogimenos
8a162136e1 Improve file comment. 
llvm-svn: 15069
 2004-07-21 08:28:39 +00:00
Alkis Evlogimenos
b5f60641f4 Add Iterative scan register allocator. 
llvm-svn: 15068
 2004-07-21 08:24:35 +00:00
Alkis Evlogimenos
75dbcf6d06 Linearscan is no longer experimental. 
llvm-svn: 15067
 2004-07-21 08:18:50 +00:00
Chris Lattner
195950df76 Add capability to remove aliasing aliassets from an AST 
llvm-svn: 15066
 2004-07-21 07:04:26 +00:00
Chris Lattner
67c1deddfc Add a bunch of new functionality, primarily to do with removing aliasing 
pointers from an AST.

llvm-svn: 15065
 2004-07-21 07:03:57 +00:00
Chris Lattner
f9976c5dbf Make the AST interface a bit richer by returning whether an insertion caused 
an insertion or not (because the pointer set already existed).

llvm-svn: 15064
 2004-07-21 05:18:04 +00:00
Chris Lattner
62c40d3982 Remove special casing of pointers and treat them generically as integers of 
the appopriate size.  This gives us the ability to eliminate int -> ptr -> int

llvm-svn: 15063
 2004-07-21 04:27:24 +00:00
Chris Lattner
36940c22f7 Do not ignore casts unless they are pointer-pointer casts. This caused us 
to miscompile the SingleSource/Regression/C++/pointer_member.cpp program.

llvm-svn: 15062
 2004-07-21 03:56:54 +00:00
Brian Gaeke
8c0fb92856 Regenerated using autoconf-2.57. 
llvm-svn: 15061
 2004-07-21 03:50:25 +00:00
Brian Gaeke
d907fb65db Add AC_MSG_CHECKING and AC_MSG_RESULT statements which were missing 
from two of our custom checks.

llvm-svn: 15060
 2004-07-21 03:50:01 +00:00
Brian Gaeke
2a45315ad0 Regenerated with autoconf/autoheader 2.57 
llvm-svn: 15059
 2004-07-21 03:33:58 +00:00
Brian Gaeke
1c49659e4f Solaris hack for isinf() 
llvm-svn: 15058
 2004-07-21 03:32:51 +00:00
Brian Gaeke
853c525672 Add check for finite(). Solaris doesn't have isinf, but it has finite...go 
figure!

llvm-svn: 15057
 2004-07-21 03:30:27 +00:00
Brian Gaeke
d8775ad4f1 Emit NaNs and INFs bit-identically to the bytecode file, if the system has 
printf("%a") support.
Patch contributed by Bill Wendling.

llvm-svn: 15056
 2004-07-21 03:15:26 +00:00
Brian Gaeke
38bd15e507 Add prototypes for platform-independent wrappers for isinf(). 
Patch contributed by Bill Wendling.

llvm-svn: 15055
 2004-07-21 03:15:14 +00:00
Brian Gaeke
94394bea47 Regenerated with autoheader-2.57. 
Patch contributed by Bill Wendling.

llvm-svn: 15054
 2004-07-21 03:15:02 +00:00
Brian Gaeke
07582185fc Add call to check for isinf(). 
Patch contributed by Bill Wendling.

llvm-svn: 15053
 2004-07-21 03:14:51 +00:00
Brian Gaeke
b29aef7a08 Add support for checking for isinf(). 
Patch contributed by Bill Wendling.

llvm-svn: 15052
 2004-07-21 03:14:39 +00:00
Brian Gaeke
cb31d835ed Regenerated with autoconf-2.57. 
Patch contributed by Bill Wendling.

llvm-svn: 15051
 2004-07-21 03:14:12 +00:00
Brian Gaeke
be7ccca4ab Add platform-independent wrapper function for isinf(). 
Patch contributed by Bill Wendling.

llvm-svn: 15050
 2004-07-21 03:13:50 +00:00
Brian Gaeke
b9b176fab3 Move LLVM tool definitions to Makefile.rules 
llvm-svn: 15049
 2004-07-21 01:31:47 +00:00
Misha Brukman
3e3d141a92 Shorts are aligned to 2 bytes, bools to 1 byte (in structs). 
llvm-svn: 15048
 2004-07-20 20:59:57 +00:00
Misha Brukman
6283677946 Treat external variables similarly to those with weak linkage: load indirect. 
llvm-svn: 15047
 2004-07-20 20:43:05 +00:00
Misha Brukman
1954583a4a Refer would-be llvm-gcc source users/hackers to the compilation guide. 
llvm-svn: 15046
 2004-07-20 20:25:18 +00:00
Misha Brukman
1c856fcf9e Use C++-style <cstdio> instead of C-style <stdio.h> 
llvm-svn: 15042
 2004-07-20 16:14:06 +00:00
Misha Brukman
f47940855d Differentiate between global and weak symbol loads 
llvm-svn: 15037
 2004-07-20 15:52:25 +00:00
Misha Brukman
fe769110a0 * Differentiate between global and weak symbol loads 
* Fix functions that take more than 32 bytes of args
* Alignment of doubles in structs is 4 bytes, not 8
* Fix passing long args: rN = hi, rN+1 = lo
* Rewrite signed divide
* Rewrite Intrinsic::returnaddress

Patch courtesy of Nate Begeman.

llvm-svn: 15036
 2004-07-20 15:51:37 +00:00
Misha Brukman
5b5aff390a Differentiate between global and weak symbol loads 
llvm-svn: 15035
 2004-07-20 15:45:27 +00:00
Misha Brukman
1942534307 Double alignment in structs is 4 bytes, not 8. Patch by Nate Begeman. 
llvm-svn: 15034
 2004-07-20 15:43:25 +00:00
Alkis Evlogimenos
cb3b2fc439 Add function to clear all virtual->physical mappings but not assigned 
stack slots. This is in preparation for the iterative linear scan.

llvm-svn: 15032
 2004-07-20 13:28:17 +00:00
Alkis Evlogimenos
89ae43ca19 Remove unneeded functor. LiveInterval has a < operator. 
llvm-svn: 15031
 2004-07-20 10:20:03 +00:00
Chris Lattner
4e4b8b0ad2 Fix a serious code pessimization problem. If an inlined function has a single 
return, clone the 'ret' BB code into the block AFTER the inlined call, not the
other way around.

llvm-svn: 15030
 2004-07-20 05:45:24 +00:00
Chris Lattner
f8c20caf25 Implement Transforms/InstCombine/IntPtrCast.ll 
llvm-svn: 15029
 2004-07-20 05:21:00 +00:00
Chris Lattner
f6d78f81c0 new testcase 
llvm-svn: 15028
 2004-07-20 05:20:39 +00:00
Chris Lattner
da83200d72 Ignore instructions that are in trivially dead functions. This allows us 
to constify 14 globals instead of 4 in a trivial C++ testcase.

llvm-svn: 15027
 2004-07-20 03:58:07 +00:00
Misha Brukman
0a12f91274 Fix stack frame layout in prologue/epilogue. Patch courtesy of Nate Begeman. 
llvm-svn: 15026
 2004-07-20 02:23:09 +00:00