Dan Gohman a90c8e690b Fold x-0 to x in unsafe-fp-math mode. This comes up in the ... testcase from PR3376, and in fact is sufficient to completely avoid the problem in that testcase. There's an underlying problem though; TLI.isOperationLegal considers Custom to be Legal, which might be ok in some cases, but that's what DAGCombiner is using in many places to test if something is legal when LegalOperations is true. When DAGCombiner is running after legalize, this isn't sufficient. I'll address this in a separate commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62860 91177308-0d34-0410-b5e6-96231b3b80d8		2009-01-23 19:10:37 +00:00
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Analysis	fix two more cases where we could let the NLPDI cache get unsorted.	2009-01-23 07:12:16 +00:00
Archive	Add the private linkage.	2009-01-15 20:18:42 +00:00
AsmParser	Add the private linkage.	2009-01-15 20:18:42 +00:00
Bitcode	use specialized accessor instead of plain getOperand(0)	2009-01-16 18:40:27 +00:00
CodeGen	Fold x-0 to x in unsafe-fp-math mode. This comes up in the	2009-01-23 19:10:37 +00:00
Debugger	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
ExecutionEngine	Revert r62553 and r62616 due to issues with portability.	2009-01-22 20:09:20 +00:00
Linker	Add the private linkage.	2009-01-15 20:18:42 +00:00
Support	Do not use host floating point types when emitting	2009-01-21 20:32:55 +00:00
System	rename methods in System/Host to be more consistent.	2009-01-22 19:53:00 +00:00
Target	Add SelectionDAG::getNOT method to construct bitwise NOT operations,	2009-01-22 17:39:32 +00:00
Transforms	introduce a useful abstraction to find out if a Use is in the call position of an instruction	2009-01-22 21:35:57 +00:00
VMCore	Do not use host floating point types when emitting	2009-01-21 20:32:55 +00:00
Makefile	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00