Evan Cheng d40d03e1bd Teach dag combine to fold the following transformation more aggressively: ... (OP (trunc x), (trunc y)) -> (trunc (OP x, y)) Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel. This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92849 91177308-0d34-0410-b5e6-96231b3b80d8		2010-01-06 19:38:29 +00:00
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Alpha	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
ARM	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
Blackfin	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
CBackend	Eliminate more uses of llvm-as and llvm-dis.	2009-09-09 00:09:15 +00:00
CellSPU	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
CPP	fix PR5295 where the .ll parser didn't reject a function after a global	2009-10-25 23:22:50 +00:00
Generic	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
Mips	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
MSP430	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
PIC16	Extern declaration for unordered.f32 libcall was not being emitted. Fixed that.	2009-12-29 03:24:34 +00:00
PowerPC	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
SPARC	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
SystemZ	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
Thumb	Add test case for the phi reuse patch.	2009-12-18 00:11:44 +00:00
Thumb2	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
X86	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
XCore	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00