6 Commits

Author	SHA1	Message	Date
Dan Gohman	795e3db7ce	Code that checks WillNotOverflowSignedAdd before creating an Add ... can safely use the NSW bit on the Add. llvm-svn: 85164	2009-10-26 22:14:22 +00:00
Dan Gohman	205b641954	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. llvm-svn: 81537	2009-09-11 18:01:28 +00:00
Dan Gohman	c95df8b6d8	Use opt -S instead of piping bitcode output through llvm-dis. ... llvm-svn: 81257	2009-09-08 22:34:10 +00:00
Dan Gohman	8d84372836	Change these tests to feed the assembly files to opt directly, instead ... of using llvm-as, now that opt supports this. llvm-svn: 81226	2009-09-08 16:50:01 +00:00
Dan Gohman	5f6f8101d5	Split the Add, Sub, and Mul instruction opcodes into separate ... 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
Dan Gohman	67e1a58e22	Generalize the new code in instcombine's ComputeNumSignBits for handling ... and/or to handle more cases (such as this add-sitofp.ll testcase), and port it to selectiondag's ComputeNumSignBits. llvm-svn: 51469	2008-05-23 02:28:01 +00:00