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75 lines
2.7 KiB
LLVM
75 lines
2.7 KiB
LLVM
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; RUN: opt < %s -O3 -S | FileCheck %s
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; Make sure the call to syncthreads is not duplicate here by the LLVM
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; optimizations, because it has the noduplicate attribute set.
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; CHECK: call void @llvm.nvvm.barrier0
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; CHECK-NOT: call void @llvm.nvvm.barrier0
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; Function Attrs: nounwind
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define void @foo(float* %output) #1 {
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entry:
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%output.addr = alloca float*, align 8
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store float* %output, float** %output.addr, align 8
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%0 = load float*, float** %output.addr, align 8
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%arrayidx = getelementptr inbounds float, float* %0, i64 0
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%1 = load float, float* %arrayidx, align 4
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%conv = fpext float %1 to double
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%cmp = fcmp olt double %conv, 1.000000e+01
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br i1 %cmp, label %if.then, label %if.else
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if.then: ; preds = %entry
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%2 = load float*, float** %output.addr, align 8
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%3 = load float, float* %2, align 4
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%conv1 = fpext float %3 to double
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%add = fadd double %conv1, 1.000000e+00
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%conv2 = fptrunc double %add to float
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store float %conv2, float* %2, align 4
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br label %if.end
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if.else: ; preds = %entry
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%4 = load float*, float** %output.addr, align 8
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%5 = load float, float* %4, align 4
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%conv3 = fpext float %5 to double
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%add4 = fadd double %conv3, 2.000000e+00
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%conv5 = fptrunc double %add4 to float
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store float %conv5, float* %4, align 4
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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call void @llvm.nvvm.barrier0()
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%6 = load float*, float** %output.addr, align 8
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%arrayidx6 = getelementptr inbounds float, float* %6, i64 0
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%7 = load float, float* %arrayidx6, align 4
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%conv7 = fpext float %7 to double
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%cmp8 = fcmp olt double %conv7, 1.000000e+01
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br i1 %cmp8, label %if.then9, label %if.else13
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if.then9: ; preds = %if.end
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%8 = load float*, float** %output.addr, align 8
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%9 = load float, float* %8, align 4
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%conv10 = fpext float %9 to double
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%add11 = fadd double %conv10, 3.000000e+00
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%conv12 = fptrunc double %add11 to float
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store float %conv12, float* %8, align 4
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br label %if.end17
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if.else13: ; preds = %if.end
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%10 = load float*, float** %output.addr, align 8
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%11 = load float, float* %10, align 4
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%conv14 = fpext float %11 to double
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%add15 = fadd double %conv14, 4.000000e+00
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%conv16 = fptrunc double %add15 to float
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store float %conv16, float* %10, align 4
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br label %if.end17
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if.end17: ; preds = %if.else13, %if.then9
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ret void
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}
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; Function Attrs: noduplicate nounwind
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declare void @llvm.nvvm.barrier0() #2
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!0 = !{void (float*)* @foo, !"kernel", i32 1}
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!1 = !{null, !"align", i32 8}
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