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R600/SI: Add testcase for problem I ran into

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with the older version of the moveToVALU changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194682 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2013-11-14 07:57:29 +00:00
parent 2b8d813851
commit e0375295c5
1 changed files with 18 additions and 0 deletions
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test/CodeGen/R600/sgpr-copy-duplicate-operand.ll Normal file
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; RUN: llc -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI %s
; Copy VGPR -> SGPR used twice as an instruction operand, which is then
; used in an REG_SEQUENCE that also needs to be handled.
; SI-LABEL: @test_dup_operands:
; SI: V_ADD_I32_e32
define void @test_dup_operands(<2 x i32> addrspace(1)* noalias %out, <2 x i32> addrspace(1)* noalias %in) {
%a = load <2 x i32> addrspace(1)* %in
%lo = extractelement <2 x i32> %a, i32 0
%hi = extractelement <2 x i32> %a, i32 1
%add = add i32 %lo, %lo
%vec0 = insertelement <2 x i32> undef, i32 %add, i32 0
%vec1 = insertelement <2 x i32> %vec0, i32 %hi, i32 1
store <2 x i32> %vec1, <2 x i32> addrspace(1)* %out, align 8
ret void
}