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11644 Commits

Author SHA1 Message Date
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
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
b456fb372d Read/write global variable alignments if present 
llvm-svn: 24216
 2005-11-06 07:11:04 +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
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
76a2afc0d3 Write/read allocation instruction alignment info to .bc files. 
llvm-svn: 24203
 2005-11-05 22:08:14 +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
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
Chris Lattner
297e545d4b Turn srem -> urem when neither input has their sign bit set. This triggers 
8 times in vortex, allowing the srems to be turned into shrs:

OLD:    %tmp.104 = rem int %tmp.5.i37, 16               ; <int> [#uses=1]
NEW:    %tmp.104 = rem uint %tmp.5.i37, 16              ; <uint> [#uses=0]
OLD:    %tmp.98 = rem int %tmp.5.i24, 16                ; <int> [#uses=1]
NEW:    %tmp.98 = rem uint %tmp.5.i24, 16               ; <uint> [#uses=0]
OLD:    %tmp.91 = rem int %tmp.5.i19, 8         ; <int> [#uses=1]
NEW:    %tmp.91 = rem uint %tmp.5.i19, 8                ; <uint> [#uses=0]
OLD:    %tmp.88 = rem int %tmp.5.i14, 8         ; <int> [#uses=1]
NEW:    %tmp.88 = rem uint %tmp.5.i14, 8                ; <uint> [#uses=0]
OLD:    %tmp.85 = rem int %tmp.5.i9, 1024               ; <int> [#uses=2]
NEW:    %tmp.85 = rem uint %tmp.5.i9, 1024              ; <uint> [#uses=0]
OLD:    %tmp.82 = rem int %tmp.5.i, 512         ; <int> [#uses=2]
NEW:    %tmp.82 = rem uint %tmp.5.i1, 512               ; <uint> [#uses=0]
OLD:    %tmp.48.i = rem int %tmp.5.i.i161, 4            ; <int> [#uses=1]
NEW:    %tmp.48.i = rem uint %tmp.5.i.i161, 4           ; <uint> [#uses=0]
OLD:    %tmp.20.i2 = rem int %tmp.5.i.i, 4              ; <int> [#uses=1]
NEW:    %tmp.20.i2 = rem uint %tmp.5.i.i, 4             ; <uint> [#uses=0]

it also occurs 9 times in gcc, but with odd constant divisors (1009 and 61)
so the payoff isn't as great.

llvm-svn: 24189
 2005-11-05 07:28:37 +00:00
Jim Laskey
5a3005b7d0 Fix logic bug in finding retry slot in tally. 
llvm-svn: 24188
 2005-11-05 00:01:25 +00:00
Jim Laskey
305647f84e Fix a warning 
llvm-svn: 24187
 2005-11-04 18:26:02 +00:00
Duraid Madina
c2c2e353ee oops, forgot to load GP for indirect calls, though the old code now commented 
out failed (e.g. methcall) - now the code compiles, though it's not quite
right just yet (tm) ;)

would fix this but it's 3am! :O

llvm-svn: 24186
 2005-11-04 17:55:53 +00:00
Duraid Madina
e8456a9175 kill redundant SP/GP/RP save/restores across calls 
llvm-svn: 24183
 2005-11-04 10:01:10 +00:00
Duraid Madina
1c632094d4 add support for loading bools 
llvm-svn: 24182
 2005-11-04 09:59:06 +00:00
Jim Laskey
670144ec9e Scheduling now uses itinerary data. 
llvm-svn: 24180
 2005-11-04 04:05:35 +00:00
Duraid Madina
f5824e4fa3 fun with predicates! (add TRUNC i64->i1, AND i1 i1, fix XOR i1 i1) 
llvm-svn: 24175
 2005-11-04 00:57:56 +00:00
Duraid Madina
4adb8143ce add pattern to load constant 0 into a predicate reg 
llvm-svn: 24164
 2005-11-03 10:09:32 +00:00
Chris Lattner
cfb7edb4ed Fix a bug that prevented this pattern from matching 
llvm-svn: 24161
 2005-11-03 05:45:34 +00:00
Nate Begeman
d6ddce1ced Fix a crash that Andrew noticed, and add a pair of braces to unfconfuse 
XCode's indenting.

llvm-svn: 24159
 2005-11-02 18:42:59 +00:00
Andrew Lenharth
9a32a77e33 make this 64 bit clean, fixed test30 of /Regression/Transforms/InstCombine/add.ll 
llvm-svn: 24158
 2005-11-02 18:35:40 +00:00
Chris Lattner
776c711246 Fix a QOI issue noticed by Markus F.X.J. Oberhumer. 
This fixes PR641

llvm-svn: 24154
 2005-11-02 17:42:58 +00:00
Duraid Madina
7975eea64d "fix" support for FP constants (this code asserts in the scheduler, 
though)

llvm-svn: 24152
 2005-11-02 07:32:59 +00:00
Duraid Madina
e89d6f5197 add F0 and F1 to the FP register class 
llvm-svn: 24151
 2005-11-02 07:30:39 +00:00
Chris Lattner
04749a46a0 This works now 
llvm-svn: 24150
 2005-11-02 06:49:37 +00:00
Duraid Madina
94dd783c92 add support for SELECT to TargetSelectionDAG.td, add support for 
selecting ints to IA64, and a few other ia64 bits and pieces

llvm-svn: 24147
 2005-11-02 02:37:18 +00:00
Duraid Madina
b743794294 add support for loading FP constants +0.0 and +1.0 to the dag isel, 
stop pretending -0.0 and -1.0 are machine constants

llvm-svn: 24146
 2005-11-02 02:35:04 +00:00
Chris Lattner
7b5cc7c0e4 Fix a source of undefined behavior when dealing with 64-bit types. This 
may fix PR652.  Thanks to Andrew for tracking down the problem.

llvm-svn: 24145
 2005-11-02 01:47:04 +00:00
Jim Laskey
4cb1e29b27 Allow itineraries to be passed through the Target Machine. 
llvm-svn: 24139
 2005-11-01 20:06:59 +00:00
Duraid Madina
28dbc1f9d0 heh, scheduling was easy? 
need to send chris, jim and sampo a box of fish each

llvm-svn: 24135
 2005-11-01 05:49:08 +00:00
Duraid Madina
6314b5fc35 FORTRAN!!! :( and other similarly unfortunate things mean that on ia64 
one sometimes needs to pass FP args in both FP *and* integer registers.

llvm-svn: 24134
 2005-11-01 05:46:16 +00:00
Duraid Madina
7f2a0b1290 so tablegen was thinking I might want to convert FPs to predicates. 
clever little tablegen!

llvm-svn: 24133
 2005-11-01 03:32:15 +00:00
Duraid Madina
c754478fbe add support for int->FP and FP->int ops, and add ia64 patterns for these 
llvm-svn: 24132
 2005-11-01 03:07:25 +00:00
Duraid Madina
ba4b2d2a1b add zeroextend predicate->integer 
llvm-svn: 24131
 2005-11-01 01:29:55 +00:00
Chris Lattner
dd58fcaf6b Add a flag to enable a darwin linker optimization 
llvm-svn: 24130
 2005-11-01 00:12:36 +00:00
Chris Lattner
906dc8d0e5 Make constant pool entries use private labels. This is important when you're 
not compiling a whole program at a time :)

llvm-svn: 24129
 2005-10-31 22:12:06 +00:00
Chris Lattner
fd80437e76 Fix an iterator invalidation problem in code used by the -strip pass 
llvm-svn: 24124
 2005-10-31 18:42:37 +00:00
Chris Lattner
f8e14244c3 Limit the search depth of MaskedValueIsZero to 6 instructions, to avoid 
bad cases.  This fixes Markus's second testcase in PR639, and should
seal it for good.

llvm-svn: 24123
 2005-10-31 18:35:52 +00:00
Jim Laskey
8a0072ec92 1. Embed and not inherit vector for NodeGroup. 
2. Iterate operands and not uses (performance.)

3. Some long pending comment changes.

llvm-svn: 24119
 2005-10-31 12:49:09 +00:00