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* Change tests from "opt %s" to "opt < %s" so that opt doesn't see theDan Gohman2009-09-111-1/+1
| | | | | | | | 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
* Change these tests to feed the assembly files to opt directly, insteadDan Gohman2009-09-081-1/+1
| | | | | | of using llvm-as, now that opt supports this. llvm-svn: 81226
* Simplify [su]max(MAX, n) to MAX. This comes up in loop tripcountDan Gohman2009-06-241-3/+3
| | | | | | | | | computations in loops with multiple exits. Adjust the testcase for PR4436 so that the relevant portion isn't optimized away. llvm-svn: 74073
* When inserting code into a loop preheader, insert it before theDan Gohman2009-06-241-0/+61
terminator, instead of after the last phi. This fixes a bug exposed by ScalarEvolution analyzing more kinds of loops. This fixes PR4436. llvm-svn: 74072
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