Dan Gohman 3112581441 Arithmetic instructions don't set EFLAGS bits OF and CF bits ... the same say the "test" instruction does in overflow cases, so eliminating the test is only safe when those bits aren't needed, as is the case for COND_E and COND_NE, or if it can be proven that no overflow will occur. For now, just restrict the optimization to COND_E and COND_NE and don't do any overflow analysis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66318 91177308-0d34-0410-b5e6-96231b3b80d8		2009-03-07 01:58:32 +00:00
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Alpha	Fix Alpha test and support for private linkage.	2009-01-15 21:51:46 +00:00
ARM	Last commit accidentially deleted this code.	2009-02-28 06:02:14 +00:00
CBackend	Fix PR2907 by digging through constant expressions to find FP constants that	2008-10-22 04:53:16 +00:00
CellSPU	Used "-enable-unsafe-fp-math" to allow this transformation - (a * b -c) = c - a *b.	2009-01-31 06:50:54 +00:00
CPP	Put CPPBackend tests into their own directory and run them only if they're	2008-07-10 22:35:32 +00:00
Generic	bug 3610: Test case.	2009-02-22 15:54:44 +00:00
IA64	Add the private linkage.	2009-01-15 20:18:42 +00:00
Mips	Add the private linkage.	2009-01-15 20:18:42 +00:00
PowerPC	Private linkage support for PPC / Darwin.	2009-01-25 06:32:01 +00:00
SPARC	Add the private linkage.	2009-01-15 20:18:42 +00:00
X86	Arithmetic instructions don't set EFLAGS bits OF and CF bits	2009-03-07 01:58:32 +00:00
XCore	Add the private linkage.	2009-01-15 20:18:42 +00:00