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Author SHA1 Message Date
Chris Lattner
90eff65d1c Allocate the right amount of memory for this vector up front. 
llvm-svn: 24252
 2005-11-08 23:32:44 +00:00
Chris Lattner
89f1b405f4 Change the ValueList array for each node to be shared instead of individuallyallocated. Further, in the common case where a node has a single value, justreference an element from a small array. This is a small compile-time win. 
llvm-svn: 24251
 2005-11-08 23:30:28 +00:00
Chris Lattner
e1cf681dee Change the ValueList array for each node to be shared instead of individually 
allocated.  Further, in the common case where a node has a single value, just
reference an element from a small array.  This is a small compile-time wi.

llvm-svn: 24250
 2005-11-08 23:30:11 +00:00
Chris Lattner
cffd7d5bdc Switch the operandlist/valuelist from being vectors to being just an array.This saves 12 bytes from SDNode, but doesn't speed things up substantially 
(our graphs apparently already fit within the cache on my g5).  In any case
this reduces memory usage.

llvm-svn: 24249
 2005-11-08 22:07:03 +00:00
Chris Lattner
12686ba20f Switch the operandlist/valuelist from being vectors to being just an array. 
This saves 12 bytes from SDNode, but doesn't speed things up substantially
(our graphs apparently already fit within the cache on my g5).  In any case
this reduces memory usage.

llvm-svn: 24248
 2005-11-08 22:06:23 +00:00
Chris Lattner
80717f007c Explicitly initialize some instance vars 
llvm-svn: 24247
 2005-11-08 21:54:57 +00:00
Chris Lattner
8bed002067 Rip out 1.6ness, bump version # to 1.7cvs 
llvm-svn: 24246
 2005-11-08 21:29:17 +00:00
John Criswell
1f5cc9af81 Updated version to 1.7cvs. 
llvm-svn: 24244
 2005-11-08 21:13:01 +00:00
John Criswell
8f29899aa3 Merged from RELEASE_16. 
llvm-svn: 24243
 2005-11-08 21:11:33 +00:00
Chris Lattner
32dee7201b adjust itf 
llvm-svn: 24242
 2005-11-08 18:52:57 +00:00
Chris Lattner
e394cb13bd Clean up RemoveDeadNodes significantly, by eliminating the need for a temporary 
set and eliminating the need to iterate whenever something is removed (which
can be really slow in some cases).  Thx to Jim for pointing out something silly
I was getting stuck on. :)

llvm-svn: 24241
 2005-11-08 18:52:27 +00:00
Chris Lattner
bb448515ae Add a new option to indicate we want the code generator to emit code quickly, 
not spending tons of time microoptimizing it.  This is useful for an -O0
style of build.

llvm-svn: 24235
 2005-11-08 02:12:47 +00:00
Chris Lattner
6d1e384d01 Add a new -fast option, which generates code quickly. 
llvm-svn: 24234
 2005-11-08 02:12:17 +00:00
Chris Lattner
3fdc97d460 Add a new option to indicate we want the code generator to emit code quickly,not spending tons of time microoptimizing it. This is useful for an -O0style of build. 
llvm-svn: 24233
 2005-11-08 02:11:51 +00:00
Jim Laskey
0c65e09865 Let's try ignoring resource utilization on the backward pass. 
llvm-svn: 24231
 2005-11-07 19:08:53 +00:00
Duraid Madina
fb806bb309 add support for storing and returning bools 
llvm-svn: 24228
 2005-11-07 03:11:02 +00:00
Chris Lattner
fc76f9f0c1 Always compute max align. 
llvm-svn: 24227
 2005-11-06 17:43:20 +00:00
Chris Lattner
f0f5449612 Change a comment slightly 
llvm-svn: 24226
 2005-11-06 17:40:18 +00:00
Duraid Madina
f0469f0376 just some random hacking - calls (particularly indirect) need a lot of 
love (especially with -sched=simple)

llvm-svn: 24225
 2005-11-06 13:43:30 +00:00
Nate Begeman
aecebc076b Add the necessary support to the ISel to allow targets to codegen the new 
alignment information appropriately.  Includes code for PowerPC to support
fixed-size allocas with alignment larger than the stack.  Support for
arbitrarily aligned dynamic allocas coming soon.

llvm-svn: 24224
 2005-11-06 09:00:38 +00:00
Chris Lattner
d88f347ba5 minor clarity changes, no functionality difference. 
llvm-svn: 24223
 2005-11-06 08:23:17 +00:00
Chris Lattner
aa07ab1192 Make sure to initialize the alignment field 
llvm-svn: 24222
 2005-11-06 08:22:18 +00:00
Chris Lattner
bcea8db4e4 document alignment on globals, functions, and allocation instructions. 
llvm-svn: 24221
 2005-11-06 08:02:57 +00:00
Chris Lattner
bdf3e04a53 Minor correction 
llvm-svn: 24220
 2005-11-06 07:48:11 +00:00
Chris Lattner
e86e4acf28 don't misencode CC#'s 
llvm-svn: 24219
 2005-11-06 07:46:13 +00:00
Chris Lattner
6c8657e621 encode/decode function alignment in bc files 
llvm-svn: 24218
 2005-11-06 07:43:39 +00:00
Chris Lattner
aea08816e0 describe extensions to the .bc format for function/global alignment 
llvm-svn: 24217
 2005-11-06 07:20:25 +00:00
Chris Lattner
b456fb372d Read/write global variable alignments if present 
llvm-svn: 24216
 2005-11-06 07:11:04 +00:00
Chris Lattner
e859d486df add alignment info for globals and functions 
llvm-svn: 24213
 2005-11-06 06:52:11 +00:00
Chris Lattner
6991a6f23f print alignment info for globals and functions 
llvm-svn: 24212
 2005-11-06 06:48:53 +00:00
Chris Lattner
96d1807bfc regenerate 
llvm-svn: 24211
 2005-11-06 06:46:53 +00:00
Chris Lattner
8cda8020c7 Allow globals to have an alignment specified. Switch to using isPowerOf2_32 
at Jim's request for the checking code.

llvm-svn: 24210
 2005-11-06 06:46:28 +00:00
Chris Lattner
0505c89e9c allow functions and modules to have an explicit alignment 
llvm-svn: 24209
 2005-11-06 06:44:42 +00:00
Chris Lattner
f98cdabb75 regenerate 
llvm-svn: 24208
 2005-11-06 06:34:34 +00:00
Chris Lattner
e09addd94b factor optional alignment 
llvm-svn: 24207
 2005-11-06 06:34:12 +00:00
Duraid Madina
cf11aefc91 ask for 16-byte aligned jmpbufs. This should unbreak C++ on IA64 (and 
a bunch of other things) but is currently ignored by the code
generator.

llvm-svn: 24206
 2005-11-06 04:29:30 +00:00
Chris Lattner
46da94a1c4 enumerate non-standard argument encoding cases, such as alignment info for 
allocations

llvm-svn: 24205
 2005-11-05 22:32:06 +00:00
Chris Lattner
dada9d949f rearrange some info about the instruction encoding 
llvm-svn: 24204
 2005-11-05 22:20:06 +00:00
Chris Lattner
76a2afc0d3 Write/read allocation instruction alignment info to .bc files. 
llvm-svn: 24203
 2005-11-05 22:08:14 +00:00
Chris Lattner
28c9ac03ef new testcase 
llvm-svn: 24202
 2005-11-05 22:07:30 +00:00
Chris Lattner
cfaf9f14c0 add an accessor 
llvm-svn: 24201
 2005-11-05 21:58:30 +00:00
Chris Lattner
c6ef0112c0 verify that alignments are always a power of 2 
llvm-svn: 24200
 2005-11-05 21:57:54 +00:00
Chris Lattner
a0d532c757 regenerate 
llvm-svn: 24199
 2005-11-05 21:54:23 +00:00
Chris Lattner
f2e7f355a0 Verify that alignment amounts are a power of 2 
llvm-svn: 24198
 2005-11-05 21:54:03 +00:00
Chris Lattner
8eee9a6234 fix printing the alignment directive 
llvm-svn: 24197
 2005-11-05 21:20:34 +00:00
Nate Begeman
f299b9fb03 Add support alignment of allocation instructions. 
Add support for specifying alignment and size of setjmp jmpbufs.

No targets currently do anything with this information, nor is it presrved
in the bytecode representation.  That's coming up next.

llvm-svn: 24196
 2005-11-05 09:21:28 +00:00
Chris Lattner
dc19995e25 add a case Nate sent me 
llvm-svn: 24195
 2005-11-05 08:57:56 +00:00
Chris Lattner
0bd3e3230c Implement Transforms/TailCallElim/return-undef.ll, a trivial case 
that has been sitting in my inbox since May 18. :)

llvm-svn: 24194
 2005-11-05 08:21:11 +00:00
Chris Lattner
f94c31b160 New testcase 
llvm-svn: 24191
 2005-11-05 08:20:28 +00:00
Chris Lattner
4352c050d1 Turn sdiv into udiv if both operands have a clear sign bit. This occurs 
a few times in crafty:

OLD:    %tmp.36 = div int %tmp.35, 8            ; <int> [#uses=1]
NEW:    %tmp.36 = div uint %tmp.35, 8           ; <uint> [#uses=0]
OLD:    %tmp.19 = div int %tmp.18, 8            ; <int> [#uses=1]
NEW:    %tmp.19 = div uint %tmp.18, 8           ; <uint> [#uses=0]
OLD:    %tmp.117 = div int %tmp.116, 8          ; <int> [#uses=1]
NEW:    %tmp.117 = div uint %tmp.116, 8         ; <uint> [#uses=0]
OLD:    %tmp.92 = div int %tmp.91, 8            ; <int> [#uses=1]
NEW:    %tmp.92 = div uint %tmp.91, 8           ; <uint> [#uses=0]

Which all turn into shrs.

llvm-svn: 24190
 2005-11-05 07:40:31 +00:00