bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
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*	Simplify the side effect stuff a bit more and make licm/sinking	Chris Lattner	2008-01-10	1	-11/+13
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	both work right according to the new flags. This removes the TII::isReallySideEffectFree predicate, and adds TII::isInvariantLoad. It removes NeverHasSideEffects+MayHaveSideEffects and adds UnmodeledSideEffects as machine instr flags. Now the clients can decide everything they need. I think isRematerializable can be implemented in terms of the flags we have now, though I will let others tackle that. llvm-svn: 45843
*	Clamp down on sinking of lots of instructions.	Chris Lattner	2008-01-10	1	-0/+9
\| \| \| \|	llvm-svn: 45841
*	The current impl is really trivial, add some comments about how it can be ↵	Chris Lattner	2008-01-05	1	-2/+24
\| \| \| \| \| \|	made better. llvm-svn: 45625
*	don't sink anything with side effects, this makes lots of stuff work, but ↵	Chris Lattner	2008-01-05	1	-0/+4
\| \| \| \| \| \|	sinks almost nothing. llvm-svn: 45617
*	fix a common crash.	Chris Lattner	2008-01-05	1	-0/+4
\| \| \| \|	llvm-svn: 45614
*	Add a really quick hack at a machine code sinking pass, enabled with ↵	Chris Lattner	2008-01-04	1	-0/+206
	--enable-sinking. It is missing validity checks, so it is known broken. However, it is powerful enough to compile this contrived code: void test1(int C, double A, double B, double P) { double Tmp = AA+BB; P = C ? Tmp : A; } into: _test1: movsd 8(%esp), %xmm0 cmpl $0, 4(%esp) je LBB1_2 # entry LBB1_1: # entry movsd 16(%esp), %xmm1 mulsd %xmm1, %xmm1 mulsd %xmm0, %xmm0 addsd %xmm1, %xmm0 LBB1_2: # entry movl 24(%esp), %eax movsd %xmm0, (%eax) ret instead of: _test1: movsd 16(%esp), %xmm0 mulsd %xmm0, %xmm0 movsd 8(%esp), %xmm1 movapd %xmm1, %xmm2 mulsd %xmm2, %xmm2 addsd %xmm0, %xmm2 cmpl $0, 4(%esp) je LBB1_2 # entry LBB1_1: # entry movapd %xmm2, %xmm1 LBB1_2: # entry movl 24(%esp), %eax movsd %xmm1, (%eax) ret woo. llvm-svn: 45570