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Author SHA1 Message Date
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
Andrew Lenharth
3145badb75 Updated alpha known problems. 
llvm-svn: 24126
 2005-10-31 19:07:29 +00:00
Chris Lattner
92d3dff7a6 Apparently these do pass on some alphas 
llvm-svn: 24125
 2005-10-31 19:06:13 +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
1c66d7fb02 Emit itinerary class in instruction info. 
llvm-svn: 24122
 2005-10-31 17:16:46 +00:00
Jim Laskey
d79749c8a5 Generate cpu to itinerary map. 
llvm-svn: 24121
 2005-10-31 17:16:01 +00:00
Chris Lattner
8972a3ed6d these tests fail on alpha for some reason 
llvm-svn: 24120
 2005-10-31 16:15:49 +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
Duraid Madina
76abe0f46c add FP compares and implicit register defs to the dag isel 
llvm-svn: 24118
 2005-10-31 01:42:11 +00:00
Jeff Cohen
79280fa56e Update Getting Started for Visual Studio page. 
llvm-svn: 24117
 2005-10-30 21:00:24 +00:00
Chris Lattner
d7ef6d6774 Significantly simplify this code and make it more aggressive. Instead of having 
a special case hack for X86, make the hack more general: if an incoming argument
register is not used in any block other than the entry block, don't copy it to
a vreg.  This helps us compile code like this:

%struct.foo = type { int, int, [0 x ubyte] }
int %test(%struct.foo* %X) {
        %tmp1 = getelementptr %struct.foo* %X, int 0, uint 2, int 100
        %tmp = load ubyte* %tmp1                ; <ubyte> [#uses=1]
        %tmp2 = cast ubyte %tmp to int          ; <int> [#uses=1]
        ret int %tmp2
}

to:

_test:
        lbz r3, 108(r3)
        blr

instead of:

_test:
        lbz r2, 108(r3)
        or r3, r2, r2
        blr

The (dead) copy emitted to copy r3 into a vreg for extra-block uses was
increasing the live range of r3 past the load, preventing the coallescing.

This implements CodeGen/PowerPC/reg-coallesce-simple.ll

llvm-svn: 24115
 2005-10-30 19:42:35 +00:00
Chris Lattner
a3caadae77 new testcase 
llvm-svn: 24112
 2005-10-30 19:42:18 +00:00
Chris Lattner
b0c50d1b7d Reduce the number of copies emitted as machine instructions by 
generating results in vregs that will need them.  In the case of something
like this:  CopyToReg((add X, Y), reg1024), we no longer emit code like
this:

   reg1025 = add X, Y
   reg1024 = reg 1025

Instead, we emit:

   reg1024 = add X, Y

Whoa! :)

llvm-svn: 24111
 2005-10-30 18:54:27 +00:00
Chris Lattner
8ac3107a8b If the module has no t-t and the host is an alpha, default to using the Alpha BE 
llvm-svn: 24110
 2005-10-30 16:44:01 +00:00
Duraid Madina
5168a7dea5 fix some broken comparisons, this affected the Pattern isel too. 
llvm-svn: 24109
 2005-10-30 10:14:19 +00:00
Chris Lattner
83d5898377 The pass was removed, but the spirit lives on 
llvm-svn: 24108
 2005-10-30 07:22:15 +00:00
Chris Lattner
802e8d3a7e This is implemented 
llvm-svn: 24107
 2005-10-30 06:42:12 +00:00
Chris Lattner
26841f9e6b Codegen mul by negative power of two with a shift and negate. 
This implements test/Regression/CodeGen/PowerPC/mul-neg-power-2.ll,
producing:

_foo:
        slwi r2, r3, 1
        subfic r3, r2, 63
        blr

instead of:

_foo:
        mulli r2, r3, -2
        addi r3, r2, 63
        blr

llvm-svn: 24106
 2005-10-30 06:41:49 +00:00
Chris Lattner
acb8e66439 new testcase 
llvm-svn: 24103
 2005-10-30 06:37:33 +00:00
Chris Lattner
2724ebe02e Fix a problem that Nate noticed with LSR: 
When inserting code for an addrec expression with a non-unit stride, be
more careful where we insert the multiply.  In particular, insert the multiply
in the outermost loop we can, instead of the requested insertion point.

This allows LSR to notice the mul in the right loop, reducing it when it gets
to it.  This allows it to reduce the multiply, where before it missed it.

This happens quite a bit in the test suite, for example, eliminating 2
multiplies in art, 3 in ammp, 4 in apsi, reducing from 1050 multiplies to
910 muls in galgel (!), from 877 to 859 in applu, and 36 to 30 in bzip2.

This speeds up galgel from 16.45s to 16.01s, applu from 14.21 to 13.94s and
fourinarow from 66.67s to 63.48s.

This implements Transforms/LoopStrengthReduce/nested-reduce.ll

llvm-svn: 24102
 2005-10-30 06:24:33 +00:00
Chris Lattner
1ce35bf973 new testcase 
llvm-svn: 24099
 2005-10-30 05:14:02 +00:00
Chris Lattner
d420fe3bfa Revert an accidental commit. 
llvm-svn: 24098
 2005-10-29 17:01:41 +00:00
Jeff Cohen
ff78bc30c7 More files deleted. 
llvm-svn: 24097
 2005-10-29 16:51:48 +00:00
Chris Lattner
3415e2f278 Make -time-passes output prettier 
llvm-svn: 24096
 2005-10-29 16:45:02 +00:00
Chris Lattner
9fd7ba3c84 Make negative immediates in patterns work correctly, silence some warnings 
building the itanium backend.

llvm-svn: 24095
 2005-10-29 16:39:40 +00:00
Duraid Madina
9c1cbbe5d1 add some FP stuff, some mix.* stuff, and constant pool support to the 
DAG instruction selector, which should be destroyed one day (in the pattern
isel also) since ia64 can pack any constant in the instruction stream

llvm-svn: 24094
 2005-10-29 16:08:30 +00:00
Chris Lattner
681d539d6e Fix <> in html 
llvm-svn: 24093
 2005-10-29 07:08:19 +00:00
Chris Lattner
fae4ab5f93 First hack-and-slash on the release notes. Comments and improvements welcome 
llvm-svn: 24092
 2005-10-29 07:07:09 +00:00
Chris Lattner
90fbc12769 Remove the lowerconstantexprs pass 
llvm-svn: 24091
 2005-10-29 05:34:40 +00:00
Chris Lattner
bafe11a821 This pass is now obsolete since all targets have moved to the SelectionDAG 
infrastructure and the simple isels have been removed.

llvm-svn: 24090
 2005-10-29 05:33:46 +00:00
Chris Lattner
dae0aafea8 Remove the LowerConstantExpressionsPass pass 
llvm-svn: 24089
 2005-10-29 05:32:20 +00:00
Chris Lattner
74537db62e remove reference to this pass 
llvm-svn: 24088
 2005-10-29 05:28:34 +00:00
Chris Lattner
ff2508ed70 Basic updates 
llvm-svn: 24087
 2005-10-29 05:14:01 +00:00
Chris Lattner
6d9926bcf4 Buh bye Expression.(cpp|h) 
llvm-svn: 24086
 2005-10-29 04:55:57 +00:00
Chris Lattner
8a257558a0 remove a dead file 
llvm-svn: 24085
 2005-10-29 04:43:38 +00:00
Chris Lattner
3736ba002f remove a dead header 
llvm-svn: 24084
 2005-10-29 04:43:10 +00:00
Chris Lattner
4772d742a0 Remove dead #include 
llvm-svn: 24083
 2005-10-29 04:41:30 +00:00
Chris Lattner
20e1564bf0 Now that instcombine does this xform, remove it from the -raise pass 
llvm-svn: 24082
 2005-10-29 04:40:23 +00:00
Chris Lattner
2c6430d1a7 Pull some code out into a function, give it the ability to see through +. 
This allows us to turn code like malloc(4*x+4) -> malloc int, (x+1)

llvm-svn: 24081
 2005-10-29 04:36:15 +00:00
Duraid Madina
6280da9a88 add shladd 
llvm-svn: 24080
 2005-10-29 04:13:40 +00:00
Duraid Madina
5748cfa290 test for the formation of shladd 
llvm-svn: 24077
 2005-10-29 04:06:49 +00:00
Chris Lattner
b313b6d67f Remove a special case, allowing the general case to handle it. No functionality 
change.

llvm-svn: 24076
 2005-10-29 03:19:53 +00:00
Nate Begeman
da6888930d New case to handle someday 
llvm-svn: 24075
 2005-10-28 23:26:57 +00:00
Chris Lattner
d44a96088b Switch more code over to using getValueAsListOfDefs. Look at all the -'s. :) 
llvm-svn: 24074
 2005-10-28 22:59:53 +00:00
Chris Lattner
2338614087 Don't emit "32" for unordered comparison 
llvm-svn: 24073
 2005-10-28 22:58:07 +00:00
Chris Lattner
06c5e018ef Rename Record::getValueAsListDef to getValueAsListOfDefs, to more accurately 
reflect what it is.
Convert some more code over to use it.

llvm-svn: 24072
 2005-10-28 22:49:02 +00:00