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25 lines
589 B
LLVM
25 lines
589 B
LLVM
; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | grep phi | wc -l | grep 1
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; This testcase should have ONE stride 18 indvar, the other use should have a
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; loop invariant value (B) added to it inside of the loop, instead of having
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; a whole indvar based on B for it.
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declare bool %cond(uint)
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void %test(uint %B) {
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br label %Loop
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Loop:
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%IV = phi uint [0, %0], [%IVn, %Loop]
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%C = mul uint %IV, 18
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%D = mul uint %IV, 18
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%E = add uint %D, %B
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%cnd = call bool %cond(uint %E)
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call bool %cond(uint %C)
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%IVn = add uint %IV, 1
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br bool %cnd, label %Loop, label %Out
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Out:
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ret void
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}
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