Matt Arsenault 8f9dde94b7 AMDGPU: Stop wasting argument registers with v3i32/v3f32 ...

SelectionDAGBuilder widens v3i32/v3f32 arguments to
to v4i32/v4f32 which consume an additional register.
In addition to wasting argument space, this produces extra
instructions since now it appears the 4th vector component has
a meaningful value to most combines.

llvm-svn: 338197

2018-07-28 14:11:34 +00:00

30 KiB

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