llvm/test/Transforms/LoopIndexSplit, branch release_26http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/LoopIndexSplit?h=release_262009-06-27T22:58:27ZDon't try to split a loop when the controlling icmp instruction2009-06-27T22:58:27ZDan Gohmangohman@apple.com2009-06-27T22:58:27Zurn:sha1:f7ca1611e22d7b877ecfd444841f8c79deb5f9e4
doesn't have an IV-based operand. This fixes PR4471.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74399 91177308-0d34-0410-b5e6-96231b3b80d8
Split the Add, Sub, and Mul instruction opcodes into separate2009-06-04T22:49:04ZDan Gohmangohman@apple.com2009-06-04T22:49:04Zurn:sha1:ae3a0be92e33bc716722aa600983fc1535acb122
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.
For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.
This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it.2009-03-30T22:24:10ZDevang Pateldpatel@apple.com2009-03-30T22:24:10Zurn:sha1:b23c232fc8a0777145480cf3ccc58f5b61e0c277
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68071 91177308-0d34-0410-b5e6-96231b3b80d8
If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed.2009-03-02T23:39:14ZDevang Pateldpatel@apple.com2009-03-02T23:39:14Zurn:sha1:cf42ee42b1a5444cd073703ff284ae0a41608227
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65902 91177308-0d34-0410-b5e6-96231b3b80d8
Ignore DbgInfoIntrinsics.2009-02-06T06:19:06ZDevang Pateldpatel@apple.com2009-02-06T06:19:06Zurn:sha1:d96c60df3fb639cc8ab213ae72b888c7fb96b3d6
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63923 91177308-0d34-0410-b5e6-96231b3b80d8
Rewrite code that 1) filters loops and 2) calculates new loop bounds.2008-12-04T21:38:42ZDevang Pateldpatel@apple.com2008-12-04T21:38:42Zurn:sha1:3831005eb1ef41802c970244ba08d9df7d0eee9a
This fixes many bugs. I will add more test cases in a separate check-in.
Some day, the code that manipulates CFG and updates dom. info could use refactoring help.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60554 91177308-0d34-0410-b5e6-96231b3b80d8
If the sign of exit condition and split condition does not match2008-11-10T19:48:34ZDevang Pateldpatel@apple.com2008-11-10T19:48:34Zurn:sha1:d4e7f44319824998bafe1bd1c50314e1310a9ca1
then do not split loop index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58995 91177308-0d34-0410-b5e6-96231b3b80d8
Check loop exit predicate properly while eliminating one iteration loop.2008-10-10T22:02:57ZDevang Pateldpatel@apple.com2008-10-10T22:02:57Zurn:sha1:fc19fbd2ca2759eafaea4d174a814f9236f2d0e8
This patch fixes PR 2869
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57369 91177308-0d34-0410-b5e6-96231b3b80d8
Fix typo, fix PR 2865.2008-10-06T23:22:54ZDevang Pateldpatel@apple.com2008-10-06T23:22:54Zurn:sha1:d44b7c1b0798b5b28556314278948a941442c1ec
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57221 91177308-0d34-0410-b5e6-96231b3b80d8
splitLoop does not handle split condition EQ.2008-09-18T23:45:14ZDevang Pateldpatel@apple.com2008-09-18T23:45:14Zurn:sha1:4fe0fe8b493437e91f8510b81462ff39f0d889ca
Fixes PR 2805
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56321 91177308-0d34-0410-b5e6-96231b3b80d8