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32 lines
1006 B
LLVM
32 lines
1006 B
LLVM
; The i induction variable looks like a wrap-around, but it really is just
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; a simple affine IV. Make sure that indvars eliminates it.
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; RUN: opt < %s -indvars -S -enable-iv-rewrite | FileCheck %s
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; CHECK: phi
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; CHECK-NOT: phi
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define void @foo() {
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entry:
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br label %bb6
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bb6: ; preds = %cond_true, %entry
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%j.0 = phi i32 [ 1, %entry ], [ %tmp5, %cond_true ] ; <i32> [#uses=3]
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%i.0 = phi i32 [ 0, %entry ], [ %j.0, %cond_true ] ; <i32> [#uses=1]
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%tmp7 = call i32 (...)* @foo2( ) ; <i32> [#uses=1]
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%tmp = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1]
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br i1 %tmp, label %cond_true, label %return
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cond_true: ; preds = %bb6
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%tmp2 = call i32 (...)* @bar( i32 %i.0, i32 %j.0 ) ; <i32> [#uses=0]
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%tmp5 = add i32 %j.0, 1 ; <i32> [#uses=1]
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br label %bb6
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return: ; preds = %bb6
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ret void
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}
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declare i32 @bar(...)
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declare i32 @foo2(...)
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