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R600: Relax some vector constraints on Dot4.

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Dot4 now uses 8 scalar operands instead of 2 vectors one which allows register
coalescer to remove some unneeded COPY.
This patch also defines some structures/functions that can be used to handle
every vector instructions (CUBE, Cayman special instructions...) in a similar
fashion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182126 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vincent Lejeune
2013-05-17 16:50:32 +00:00
parent d3293b49f9
commit 4ed9917147
11 changed files with 281 additions and 27 deletions
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6
lib/Target/R600/R600EmitClauseMarkers.cpp
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@@ -36,8 +36,7 @@ private:
case AMDGPU::INTERP_PAIR_XY:
case AMDGPU::INTERP_PAIR_ZW:
case AMDGPU::INTERP_VEC_LOAD:
case AMDGPU::DOT4_eg_pseudo:
case AMDGPU::DOT4_r600_pseudo:
case AMDGPU::DOT_4:
return 4;
case AMDGPU::KILL:
return 0;
@@ -71,8 +70,7 @@ private:
case AMDGPU::INTERP_PAIR_ZW:
case AMDGPU::INTERP_VEC_LOAD:
case AMDGPU::COPY:
case AMDGPU::DOT4_eg_pseudo:
case AMDGPU::DOT4_r600_pseudo:
case AMDGPU::DOT_4:
return true;
default:
return false;