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18 lines
390 B
LLVM
18 lines
390 B
LLVM
; This is a basic sanity check for constant propagation. The add instruction
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; and phi instruction should be eliminated.
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; RUN: opt < %s -sccp -S | not grep phi
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; RUN: opt < %s -sccp -S | not grep add
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define i128 @test(i1 %B) {
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br i1 %B, label %BB1, label %BB2
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BB1:
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%Val = add i128 0, 1
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br label %BB3
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BB2:
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br label %BB3
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BB3:
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%Ret = phi i128 [%Val, %BB1], [1, %BB2]
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ret i128 %Ret
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}
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