Add a test case for global live range splitting.
llvm-svn: 157357
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@ -20,3 +20,30 @@ entry:
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store float %a, float* %p, align 4
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store float %a, float* %p, align 4
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ret void
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ret void
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}
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}
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; CHECK: global_split
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;
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; Same thing, but across basic blocks.
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;
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; CHECK: vldr s
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; CHECK-NOT: vstr
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; CHECK: vadd.f32
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; CHECK-NOT: vstr
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; CHECK: vorr
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; CHECK: vstr s
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define void @global_split(float* nocapture %p1, float* nocapture %p2) nounwind ssp {
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entry:
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%0 = load float* %p1, align 4
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%add = fadd float %0, 1.000000e+00
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tail call void asm sideeffect "", "~{d0},~{d1},~{d2},~{d3},~{d4},~{d5},~{d6},~{d7},~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"() nounwind
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%cmp = fcmp ogt float %add, 0.000000e+00
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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store float %add, float* %p2, align 4
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br label %if.end
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if.end:
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store float %add, float* %p1, align 4
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ret void
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}
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