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History

Matt Arsenault 8a9536c837 AMDGPU: Report extractelement as free in cost model

The cost for scalarized operations is computed as N * (scalar operation
cost + 1 extractelement + 1 insertelement). This partially fixes
inflating the cost of scalarized operations since every operation is
scalarized and free. I don't think we want any cost asociated with
scalarization, but for now insertelement is still counted. I'm not sure
if we should pretend that insertelement is also free, or add a way
to compute a custom scalarization cost.

llvm-svn: 254438

2015-12-01 19:08:39 +00:00

AArch64

[CostModel][AArch64] Remove amortization factor for some of the vector select instructions

2015-09-09 15:35:02 +00:00

AMDGPU

AMDGPU: Report extractelement as free in cost model

2015-12-01 19:08:39 +00:00

ARM

[ARM] Don't pessimize i32 vselect.

2015-11-17 17:25:15 +00:00

PowerPC

[PowerPC] Include the permutation cost for unaligned vector loads