Evan Cheng 5cf9d23e4e Canonicalize -1 - x to ~x. ... Instcombine does this but apparently there are situations where this pattern will escape the optimizer and / or created by isel. Here is a case that's seen in JavaScriptCore: %t1 = sub i32 0, %a %t2 = add i32 %t1, -1 The dag combiner pattern: ((c1-A)+c2) -> (c1+c2)-A will fold it to -1 - %a. llvm-svn: 93773		2010-01-18 21:38:44 +00:00
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Alpha	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
ARM	The Neon "vtst" instruction takes a suffix that is the element size alone --	2010-01-17 06:35:17 +00:00
Blackfin	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
CBackend
CellSPU	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
CPP
Generic	APInt'fy TargetLowering::SimplifySetCC to fix PR5963.	2010-01-07 20:58:44 +00:00
Mips	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00
MSP430	Reenable tests	2010-01-15 21:19:26 +00:00
PIC16	Extern declaration for unordered.f32 libcall was not being emitted. Fixed that.	2009-12-29 03:24:34 +00:00
PowerPC	remove uses of deprecated functions, this generates slightly	2010-01-13 07:30:49 +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	Run the pre-register allocation tail duplication pass by default. Remove	2010-01-16 00:29:50 +00:00
Thumb2	Run the pre-register allocation tail duplication pass by default. Remove	2010-01-16 00:29:50 +00:00
X86	Canonicalize -1 - x to ~x.	2010-01-18 21:38:44 +00:00
XCore	Delete useless trailing semicolons.	2010-01-05 17:55:26 +00:00