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28 lines
850 B
LLVM
28 lines
850 B
LLVM
;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
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; Exactly one constant vector can be folded into dot4, which means exactly
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; 4 MOV instructions
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; CHECK: @main
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; CHECK: MOV
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; CHECK: MOV
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; CHECK: MOV
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; CHECK: MOV
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; CHECK-NOT: MOV
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; CHECK-NOT: MOV
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; CHECK-NOT: MOV
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; CHECK-NOT: MOV
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define void @main(float addrspace(1)* %out) {
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main_body:
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%0 = load <4 x float> addrspace(8)* null
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%1 = load <4 x float> addrspace(8)* getelementptr ([1024 x <4 x float>] addrspace(8)* null, i64 0, i32 1)
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%2 = call float @llvm.AMDGPU.dp4(<4 x float> %0,<4 x float> %1)
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%3 = insertelement <4 x float> undef, float %2, i32 0
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call void @llvm.R600.store.swizzle(<4 x float> %3, i32 0, i32 0)
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ret void
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}
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declare float @llvm.AMDGPU.dp4(<4 x float>, <4 x float>) #1
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declare void @llvm.R600.store.swizzle(<4 x float>, i32, i32)
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attributes #1 = { readnone }
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