Chris Lattner
c9838f25d5
Make RewriteLoopExitValues far less nested by using continue in the loop
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34891 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 22:48:48 +00:00
Chris Lattner
c739cd6d07
my recent change caused a failure in a bswap testcase, because it changed
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the order that instcombine processed instructions in the testcase. The end
result is that instcombine finished with:
define i16 @test1(i16 %a) {
%tmp = zext i16 %a to i32 ; <i32> [#uses=2]
%tmp21 = lshr i32 %tmp, 8 ; <i32> [#uses=1]
%tmp5 = shl i32 %tmp, 8 ; <i32> [#uses=1]
%tmp.upgrd.32 = or i32 %tmp21, %tmp5 ; <i32> [#uses=1]
%tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16 ; <i16> [#uses=1]
ret i16 %tmp.upgrd.3
}
which can't get matched as a bswap.
This patch makes instcombine more sophisticated about removing truncating
casts, allowing it to turn this into:
define i16 @test2(i16 %a) {
%tmp211 = lshr i16 %a, 8
%tmp52 = shl i16 %a, 8
%tmp.upgrd.323 = or i16 %tmp211, %tmp52
ret i16 %tmp.upgrd.323
}
which then matches as bswap. This fixes bswap.ll and implements
InstCombine/cast2.ll:test[12]. This also implements cast elimination of
add/sub.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34870 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 05:27:34 +00:00
Nick Lewycky
b6431da7be
Translate bit operations to English.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34868 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 03:14:40 +00:00
Chris Lattner
ec9c35826d
add a top-level iteration loop to instcombine. This means that it will never
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finish without combining something it is capable of.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34865 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 02:04:50 +00:00
Reid Spencer
af3e9468dc
APIntify this pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34863 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 00:48:31 +00:00
Reid Spencer
bee0f663d8
Finally get this patch right :)
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Replace expensive getZExtValue() == 0 calls with isZero() calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34861 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:51:25 +00:00
Reid Spencer
502db93a8a
Dang, I've done that twice now! Undo previous commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34860 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:37:53 +00:00
Reid Spencer
a5dae0cac0
Use more efficient test for one value in a ConstantInt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34859 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:35:28 +00:00
Reid Spencer
4e69f48a0a
Guard against huge loop trip counts in an APInt safe way.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:31:34 +00:00
Reid Spencer
e8391e039e
Make sure debug code is not evaluated in non-debug case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34856 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:15:21 +00:00
Reid Spencer
f1bed4c720
1. Sort switch cases using APInt safe comparison.
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2. Make sure debug output of APInt values is safe for all bit widths.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34855 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:05:28 +00:00
Reid Spencer
4cf735b47e
Use APInt safe isOne() method on ConstantInt instead of getZExtValue()==1
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34854 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:03:17 +00:00
Reid Spencer
e1c99d4c69
Make sorting of ConstantInt be APInt clean through use of ult function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34853 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:01:14 +00:00
Chris Lattner
dbab386e23
Fix a significant algorithm problem with the instcombine worklist. removing
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34848 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 21:28:56 +00:00
Chris Lattner
f22a5c6e9e
minor cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34846 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 19:59:19 +00:00
Chris Lattner
67ef241f45
switch the inliner from being recursive to being iterative.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34832 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 03:11:20 +00:00
Reid Spencer
513d0f25ed
Reverse a premature commital.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34822 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 00:31:39 +00:00
Reid Spencer
cae5754619
Prefer non-virtual calls to ConstantInt::isZero over virtual calls to
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Constant::isNullValue() in situations where it is possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34821 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 00:28:52 +00:00
Reid Spencer
a3507ebd33
Although probably not necessary, guard against a potential assertion by
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using isNullValue() instead of getZExtValue() == 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34815 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 21:54:37 +00:00
Reid Spencer
4da0451821
Use isUnitValue() instead of getZExtValue() == 1 which will prevent an
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assert if the ConstantInt's value is large.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34814 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 21:51:23 +00:00
Reid Spencer
a0e0129e3f
Use APInt conversion to string so the result is correct regardless of the
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bit width of the ConstantInt being converted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34810 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 21:00:32 +00:00
Reid Spencer
62aa905595
The 64-bit constructor for ConstantInt changes from int64_t to uint64_t.
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This caused a warning for construction with -1. Avoid the warning by using
-1ULL instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34796 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 19:33:52 +00:00
Reid Spencer
a6e8a955d6
Remove the "isSigned" parameters from ConstantRange. It turns out they
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are not needed as the results are the same with or without it.
Patch by Nicholas Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34782 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 07:54:15 +00:00
Reid Spencer
c6aedf70b3
For PR1205:
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Adjust to changes in ConstantRange interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34762 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 22:03:51 +00:00
Reid Spencer
581b0d453a
For PR1205:
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Remove ConstantInt from ConstantRange interface and adjust its users to
compensate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34758 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 19:57:34 +00:00
Reid Spencer
dc5c159701
For PR1205:
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First round of ConstantRange changes. This makes all CR constructors use
only APInt and not use ConstantInt. Clients are adjusted accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34756 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 18:57:32 +00:00
Devang Patel
fb688d4d1c
Use efficient container SmallPtrSet
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34640 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 20:22:50 +00:00
Devang Patel
5295692061
Do not unswitch loop on same value again and again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34638 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 19:31:58 +00:00
Chris Lattner
b3036683c1
Fix InstCombine/2007-02-23-PhiFoldInfLoop.ll and PR1217
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34546 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24 01:03:45 +00:00
Chris Lattner
cae0a193e3
fix an obscure and tricky bug the inliner can hit sometimes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34531 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-23 19:54:30 +00:00
Jim Laskey
7d4853896c
Revert changes for a simplier solution.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34495 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22 16:21:18 +00:00
Jim Laskey
c518ccfeb5
Itanium ABI exception handing support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34480 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 22:49:50 +00:00
Dan Gohman
e26bff22db
Fix typos in comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34456 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 20:52:03 +00:00
Chris Lattner
bb9a041100
remove reoptimizer-specific passes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34439 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-20 05:31:49 +00:00
Chris Lattner
ec1f752ae4
eliminate use of deprecated apis
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34417 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-19 07:34:47 +00:00
Chris Lattner
4a6f363491
fix comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34395 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 22:10:58 +00:00
Chris Lattner
eb47391994
simplify pass, delete dead gvar protos as well.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34394 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-18 22:10:34 +00:00
Chris Lattner
535014f8ec
convert more vectors to smallvectors, 2.8% speedup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34333 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 22:52:10 +00:00
Chris Lattner
72588fc3f4
change some vectors to smallvectors. This speeds up instcombine on 447.dealII
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by 5%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34332 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 22:48:32 +00:00
Chris Lattner
1f87a58ab2
switch an std::set to a SmallPtr set, this speeds up instcombine by 9.5%
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on 447.dealII
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34323 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 19:41:52 +00:00
Reid Spencer
ac9dcb94dd
For PR1195:
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Change use of "packed" term to "vector" in comments, strings, variable
names, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34300 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 03:39:18 +00:00
Reid Spencer
d29b8b85ce
Change an assert that mentions Packed Type -> Vector Type.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34298 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 03:11:20 +00:00
Reid Spencer
9d6565a5b1
For PR1195:
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Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 02:26:10 +00:00
Chris Lattner
d2b7cec527
Generalize TargetData strings, to support more interesting forms of data.
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Patch by Scott Michel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34266 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-14 05:52:17 +00:00
Chris Lattner
c18470cb00
eliminate a bunch of vector-related heap traffic
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34222 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-13 05:58:53 +00:00
Chris Lattner
93e985f1b1
Eliminate use of ctors that take vectors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34219 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-13 02:10:56 +00:00
Chris Lattner
1ccd185cb4
stop using methods that take vectors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34205 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-12 22:56:41 +00:00
Chris Lattner
dec628eead
Switch ValueSymbolTable to use StringMap<Value*> instead of std::map<std::string, Value*>
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as its main datastructure. There are many improvements yet to be made, but
this speeds up opt --std-compile-opts on 447.dealII by 7.3%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34193 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-12 05:18:08 +00:00
Chris Lattner
86cc423555
simplify code by using Value::takeName
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34177 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 01:37:51 +00:00
Chris Lattner
6934a04a8c
Simplify code by using value::takename
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34176 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-11 01:23:03 +00:00