1880092722
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
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input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.
llvm-svn: 81537
2009-09-11 18:01:28 +00:00
72a13d2476
Use opt -S instead of piping bitcode output through llvm-dis.
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llvm-svn: 81257
2009-09-08 22:34:10 +00:00
9737a63ed8
Change these tests to feed the assembly files to opt directly, instead
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of using llvm-as, now that opt supports this.
llvm-svn: 81226
2009-09-08 16:50:01 +00:00
bda82c20f3
Fix PR3913, patch by Jakub Staszak!
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llvm-svn: 80327
2009-08-28 00:43:14 +00:00
317f054531
Don't try to split a loop when the controlling icmp instruction
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doesn't have an IV-based operand. This fixes PR4471.
llvm-svn: 74399
2009-06-27 22:58:27 +00:00
a5b9645c4b
Split the Add, Sub, and Mul instruction opcodes into separate
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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
llvm-svn: 72897
2009-06-04 22:49:04 +00:00
6e68bd007a
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.
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llvm-svn: 68071
2009-03-30 22:24:10 +00:00
d50ebbdf3f
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.
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llvm-svn: 65902
2009-03-02 23:39:14 +00:00
7cb8df4ce7
Ignore DbgInfoIntrinsics.
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llvm-svn: 63923
2009-02-06 06:19:06 +00:00
c56423b500
Rewrite code that 1) filters loops and 2) calculates new loop bounds.
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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.
llvm-svn: 60554
2008-12-04 21:38:42 +00:00
d0ce981372
If the sign of exit condition and split condition does not match
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then do not split loop index.
llvm-svn: 58995
2008-11-10 19:48:34 +00:00
647a1e532b
Check loop exit predicate properly while eliminating one iteration loop.
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This patch fixes PR 2869
llvm-svn: 57369
2008-10-10 22:02:57 +00:00
40aafce00d
Fix typo, fix PR 2865.
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llvm-svn: 57221
2008-10-06 23:22:54 +00:00
c25be3b2de
splitLoop does not handle split condition EQ.
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Fixes PR 2805
llvm-svn: 56321
2008-09-18 23:45:14 +00:00
dca8d3b183
Do not ignore iv uses outside the loop.
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This one slipped through cracks very well.
llvm-svn: 56284
2008-09-17 17:53:47 +00:00
51cbf928ab
If loop induction variable's start value is less then its exit value then do not split the loop.
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llvm-svn: 53265
2008-07-09 00:12:01 +00:00
6c871c0866
Testcase for LoopIndexSplit and DomFrontier.
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llvm-svn: 51916
2008-06-03 18:32:27 +00:00
1e427c3264
sabre brings to my attention that the 'tr' suffix is also obsolete
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llvm-svn: 51349
2008-05-20 21:00:03 +00:00
f45ff35bfe
Rename the last test with .llx extension to .ll, resolve duplicate test by renaming to isnan2. Now that no test has llx ending there is no need to search for them from dg.exp too.
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llvm-svn: 51328
2008-05-20 19:52:04 +00:00
ee7bf41c06
Do not erase induction variable increment if it is used outside the loop.
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llvm-svn: 51280
2008-05-19 22:23:55 +00:00
a38f58aa5c
Add incoming value from header only if phi node has any use inside the loop.
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llvm-svn: 48738
2008-03-24 20:16:14 +00:00
2e622e4c2b
If loop header is also loop exiting block then OrigPN is incoming value for B loop header.
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Fixes PR 2030.
llvm-svn: 47141
2008-02-14 23:18:47 +00:00
0ecb76d820
A loop latch phi node may have uses inside loop, not just in loop header.
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llvm-svn: 47093
2008-02-13 22:23:07 +00:00
22c3caab6e
While moving exit condition, do not drop loop latch on the floor.
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llvm-svn: 47089
2008-02-13 22:06:36 +00:00
c281d8031b
Keep track of exit value operand number when operands are swapped.
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llvm-svn: 47082
2008-02-13 19:48:48 +00:00
26f75e2576
Fix PR 1995.
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llvm-svn: 46898
2008-02-08 22:49:13 +00:00
67fa0521b6
Filter loops that subtract induction variables.
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These loops are not yet handled.
Fix PR 1912.
llvm-svn: 46484
2008-01-29 02:20:41 +00:00
bd75910fa7
If ExitValue operand is also defined in Loop header then
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insert new ExitValue after this operand definition.
This fixes PR1828.
llvm-svn: 44539
2007-12-03 19:17:21 +00:00
7bba386f72
Handle multiple induction variables.
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This fixes PR714.
llvm-svn: 42309
2007-09-25 18:24:48 +00:00
87d7e8ebcb
Add transformation to update loop interation space. Now,
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for (i=A; i<N; i++) {
if (i < X && i > Y)
do_something();
}
is transformed into
U=min(N,X); L=max(A,Y);
for (i=L;i<U;i++)
do_somethihg();
llvm-svn: 42299
2007-09-25 17:31:19 +00:00
361e52f39c
Fix PR1692
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llvm-svn: 42209
2007-09-21 21:18:19 +00:00
f8ab0a9acc
Filter exit conditions which are not yet handled.
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llvm-svn: 41800
2007-09-10 18:33:42 +00:00
c1ef32ef3d
Constant split values needs upper bound and lower bound check, just like any other split value.
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llvm-svn: 41389
2007-08-25 01:09:14 +00:00
4e63e1f5b5
While calculating upper loop bound for first loop and lower loop bound for second loop, take care of edge cases.
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llvm-svn: 41387
2007-08-25 00:56:38 +00:00
c2e2d15f45
Do not split loops rejected by processOneIterationLoop().
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llvm-svn: 41194
2007-08-20 20:24:15 +00:00
cec2ad95f4
Add loop index split tests.
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llvm-svn: 41146
2007-08-17 22:02:15 +00:00
Dan Gohman