5 Commits

Author	SHA1	Message	Date
Edward O'Callaghan	d2d438e58d	Convert a few tests to FileCheck for PR5307. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85171 91177308-0d34-0410-b5e6-96231b3b80d8	2009-10-26 22:52:03 +00:00
Dan Gohman	f2f6ce65b7	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the ... 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8	2009-09-11 18:01:28 +00:00
Dan Gohman	3e054fe9ef	Use opt -S instead of piping bitcode output through llvm-dis. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8	2009-09-08 22:34:10 +00:00
Dan Gohman	b1e1e82c54	Change these tests to feed the assembly files to opt directly, instead ... of using llvm-as, now that opt supports this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8	2009-09-08 16:50:01 +00:00
Dan Gohman	81b28ceab6	Improve instcombine's handling of integer min and max in two ways: ... - Recognize expressions like "x > -1 ? x : 0" as min/max and turn them into expressions like "x < 0 ? 0 : x", which is easily recognizable as a min/max operation. - Refrain from folding expression like "y/2 < 1" to "y < 2" when the comparison is being used as part of a min or max idiom, like "y/2 < 1 ? 1 : y/2". In that case, the division has another use, so folding doesn't eliminate it, and obfuscates the min/max, making it harder to recognize as a min/max operation. These benefit ScalarEvolution, CodeGen, and anything else that wants to recognize integer min and max. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56246 91177308-0d34-0410-b5e6-96231b3b80d8	2008-09-16 18:46:06 +00:00