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30 lines
509 B
30 lines
509 B
; RUN: llc < %s -march=x86-64
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define i64 @foo() nounwind {
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entry:
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%t0 = load i32, i32* null, align 8
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switch i32 %t0, label %bb65 [
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i32 16, label %bb
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i32 12, label %bb56
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]
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bb:
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br label %bb65
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bb56:
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unreachable
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bb65:
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%a = phi i64 [ 0, %bb ], [ 0, %entry ]
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tail call void asm "", "{cx}"(i64 %a) nounwind
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%t15 = and i64 %a, 4294967295
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ret i64 %t15
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}
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define i64 @bar(i64 %t0) nounwind {
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call void asm "", "{cx}"(i64 0) nounwind
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%t1 = sub i64 0, %t0
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%t2 = and i64 %t1, 4294967295
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ret i64 %t2
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}
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