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Commit Graph

1693 Commits

Author SHA1 Message Date
Nick Lewycky
e6cb3e2433 Add support for cast instructions.
llvm-svn: 35734
2007-04-07 15:48:32 +00:00
Owen Anderson
85b0e20f2a Completely purge DomSet. This is the (hopefully) final patch for PR1171.
llvm-svn: 35731
2007-04-07 07:17:27 +00:00
Nick Lewycky
3e77af40ff Support NE inequality in ValueRanges.
llvm-svn: 35724
2007-04-07 04:49:12 +00:00
Nick Lewycky
7fbec59fb4 Cleanup. Refactor out the applying of value ranges to its own method.
llvm-svn: 35719
2007-04-07 03:36:51 +00:00
Nick Lewycky
80cf96b3f8 Use TargetData to find the size of a type.
llvm-svn: 35718
2007-04-07 03:16:12 +00:00
Nick Lewycky
3ddf638983 Strengthen icmp snuggling by doing 'compare-or-equal-to' to 'compare'
first and then range testing second.

llvm-svn: 35715
2007-04-07 02:30:14 +00:00
Devang Patel
562df7f986 Add loop rotation pass.
llvm-svn: 35714
2007-04-07 01:25:15 +00:00
Chris Lattner
03c84be56b implement Transforms/InstCombine/malloc2.ll and PR1313
llvm-svn: 35700
2007-04-06 18:57:34 +00:00
Chris Lattner
997967979f Use a worklist-driven algorithm instead of a recursive one.
llvm-svn: 35680
2007-04-05 01:27:02 +00:00
Dale Johannesen
fb15913194 Prevent transformConstExprCastCall from generating conversions that assert
elsewhere.

llvm-svn: 35668
2007-04-04 19:16:42 +00:00
Jeff Cohen
01d4afe6da Fix 2007-04-04-BadFoldBitcastIntoMalloc.ll
llvm-svn: 35665
2007-04-04 16:58:57 +00:00
Duncan Sands
de998e6599 Fix comment.
llvm-svn: 35655
2007-04-04 06:42:45 +00:00
Chris Lattner
974e931689 Fix a bug I introduced with my patch yesterday which broke Qt (I converted
some constant exprs to apints).

Thanks to Anton for tracking down a small testcase that triggered this!

llvm-svn: 35633
2007-04-03 23:29:39 +00:00
Chris Lattner
bfe18d29f9 reinstate the previous two patches, with a bugfix :)
ldecod now passes.

llvm-svn: 35626
2007-04-03 17:43:25 +00:00
Evan Cheng
e30cfe8e9e Reverting back to 1.723. The last two commits broke JM (and possibily others) on ARM.
llvm-svn: 35620
2007-04-03 08:11:50 +00:00
Chris Lattner
4302c8bcdb split some code out into a helper function
llvm-svn: 35615
2007-04-03 05:11:24 +00:00
Chris Lattner
23d58bde29 Split a whole ton of code out of visitICmpInst into visitICmpInstWithInstAndIntCst.
llvm-svn: 35614
2007-04-03 04:46:52 +00:00
Chris Lattner
9b66a372c8 Fix PR1253 and xor2.ll:test[01]
llvm-svn: 35612
2007-04-03 01:47:41 +00:00
Chris Lattner
3df2382275 allow -1 strides to reuse "1" strides.
llvm-svn: 35607
2007-04-02 22:51:58 +00:00
Zhou Sheng
98c161c290 1. Make use of APInt operation instead of using ConstantExpr::getXXX.
2. Use cheaper APInt methods.

llvm-svn: 35594
2007-04-02 13:45:30 +00:00
Zhou Sheng
47311533a7 Use uint32_t for bitwidth instead of unsigned.
llvm-svn: 35593
2007-04-02 08:20:41 +00:00
Chris Lattner
d7c96e25e4 Pass the type of the store access, not the type of the store, into the
target hook.  This allows us to codegen a loop as:

LBB1_1: @cond_next
        mov r2, #0
        str r2, [r0, +r3, lsl #2]
        add r3, r3, #1
        cmn r3, #1
        bne LBB1_1      @cond_next

instead of:

LBB1_1: @cond_next
        mov r2, #0
        str r2, [r0], #+4
        add r3, r3, #1
        cmn r3, #1
        bne LBB1_1      @cond_next

This looks the same, but has one fewer induction variable (and therefore,
one fewer register) live in the loop.

llvm-svn: 35592
2007-04-02 06:34:44 +00:00
Chris Lattner
aaf29d3b5e Wrap long line
llvm-svn: 35588
2007-04-02 05:48:58 +00:00
Chris Lattner
7208dd1001 use more obvious function name.
llvm-svn: 35587
2007-04-02 05:42:22 +00:00
Chris Lattner
35ece02bea simplify (x+c)^signbit as (x+c+signbit), pointed out by PR1288. This implements
test/Transforms/InstCombine/xor.ll:test28

llvm-svn: 35584
2007-04-02 05:36:22 +00:00
Chris Lattner
2f94a80322 Various passes before isel split edges and do other CFG-restructuring changes.
isel has its own particular features that it wants in the CFG, in order to
reduce the number of times a constant is computed, etc.  Make sure that we
clean up the CFG before doing any other things for isel.  Doing so can
dramatically reduce the number of split edges and reduce the number of
places that constants get computed.  For example, this shrinks
CodeGen/Generic/phi-immediate-factoring.ll from 44 to 37 instructions on X86,
and from 21 to 17 MBB's in the output.  This is primarily a code size win,
not a performance win.

This implements CodeGen/Generic/phi-immediate-factoring.ll and PR1296.

llvm-svn: 35575
2007-04-02 01:35:34 +00:00
Chris Lattner
ac77daac29 print the type of an inserted IV in -debug mode.
llvm-svn: 35563
2007-04-01 22:21:39 +00:00
Chris Lattner
a66a97908c simplify this code, make it work for ap ints
llvm-svn: 35561
2007-04-01 20:57:36 +00:00
Zhou Sheng
8b2b6b9e36 Avoid unnecessary APInt construction.
llvm-svn: 35555
2007-04-01 17:13:37 +00:00
Reid Spencer
88fb617695 For PR1297:
Support overloaded intrinsics bswap, ctpop, cttz, ctlz.

llvm-svn: 35547
2007-04-01 07:35:23 +00:00
Chris Lattner
aa4b06bdae Fix InstCombine/2007-03-31-InfiniteLoop.ll
llvm-svn: 35536
2007-04-01 05:36:37 +00:00
Chris Lattner
579b1c63d5 Split the sdisel code munging stuff out into its own opt-pass, CodeGenPrepare.
llvm-svn: 35528
2007-03-31 04:06:36 +00:00
Zhou Sheng
967239685a Delete dead code.
llvm-svn: 35525
2007-03-31 02:50:26 +00:00
Zhou Sheng
ebf4c32f0b Use APInt operators to calculate the carry bits, remove this loop.
llvm-svn: 35524
2007-03-31 02:38:39 +00:00
Zhou Sheng
67bcf1cfb6 Make sure the use of ConstantInt::getZExtValue() for shift amount safe.
llvm-svn: 35510
2007-03-30 17:20:39 +00:00
Zhou Sheng
d667b5db0c 1. Make sure the use of ConstantInt::getZExtValue() for getting shift
amount is safe.
2. Use new method on ConstantInt instead of (? :) operator.
3. Use new method uge() on ConstantInt to simplify codes.

llvm-svn: 35505
2007-03-30 09:29:48 +00:00
Zhou Sheng
382723d8b4 Use APInt operation instead of ConstantExpr::getXX.
llvm-svn: 35503
2007-03-30 05:45:18 +00:00
Zhou Sheng
ac2b833c7a 1. Make more use of APInt::getHighBitsSet/getLowBitsSet.
2. Let APInt variable do the binary operation stuff instead of using
   ConstantExpr::getXXX.

llvm-svn: 35450
2007-03-29 08:15:12 +00:00
Zhou Sheng
684c2133f2 Clean up some codes in InstCombiner::SimplifyDemandedBits().
llvm-svn: 35446
2007-03-29 04:45:55 +00:00
Zhou Sheng
067efd7806 Clean up codes in InstCombiner::SimplifyDemandedBits():
1. Line out nested call of APInt::zext/trunc.
2. Make more use of APInt::getHighBitsSet/getLowBitsSet.
3. Use APInt[] operator instead of expression like "APIntVal & SignBit".

llvm-svn: 35444
2007-03-29 02:26:30 +00:00
Zhou Sheng
74db84591c 1. Make the APInt variable do the binary operation stuff if possible
instead of using ConstantExpr::getXX.
2. Use constant reference to APInt if possible instead of expensive
   APInt copy.

llvm-svn: 35443
2007-03-29 01:57:21 +00:00
Zhou Sheng
a098617383 Avoid unnecessary APInt construction.
llvm-svn: 35431
2007-03-28 17:38:21 +00:00
Zhou Sheng
8fecc8c3a0 1. Make more use of getLowBitsSet/getHighBitsSet.
2. Use APInt[] instead of "X & SignBit".
3. Clean up some codes.
4. Make the expression like "ShiftAmt = ShiftAmtC->getZExtValue()" safe.

llvm-svn: 35424
2007-03-28 15:02:20 +00:00
Zhou Sheng
cf7d99a731 1. Make more use of getLowBitsSet/getHighBitsSet.
2. Make the APInt value do the zext/trunc stuff instead of using
   ConstantExpr::getZExt().

llvm-svn: 35422
2007-03-28 09:19:01 +00:00
Zhou Sheng
2dc7cf0114 Use UnknownBIts[BitWidth-1] instead of UnknownBIts & SignBits.
llvm-svn: 35418
2007-03-28 05:15:57 +00:00
Zhou Sheng
e43a68551e Remove unused APInt variable.
llvm-svn: 35414
2007-03-28 03:02:21 +00:00
Zhou Sheng
7245616070 Clean up codes in ComputeMaskedBits():
1. Line out nested use of zext/trunc.
2. Make more use of getHighBitsSet/getLowBitsSet.
3. Use APInt[] != 0 instead of "(APInt & SignBit) != 0".

llvm-svn: 35408
2007-03-28 02:19:03 +00:00
Reid Spencer
3b614f9dad For PR1280:
When converting an add/xor/and triplet into a trunc/sext, only do so if the
intermediate integer type is a bitwidth that the targets can handle.

llvm-svn: 35400
2007-03-28 01:36:16 +00:00
Evan Cheng
a23cc41b11 Unbreaks non-debug builds.
llvm-svn: 35383
2007-03-27 16:44:48 +00:00
Reid Spencer
e4b331a4f2 Implement some minor review feedback.
llvm-svn: 35373
2007-03-26 23:58:26 +00:00