19 lines
474 B
LLVM
19 lines
474 B
LLVM
; RUN: opt < %s -scalar-evolution -analyze -enable-new-pm=0 | FileCheck %s
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; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s
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; CHECK: Loop %header: backedge-taken count is (0 smax %n)
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define void @foo(i32 %n) {
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entry:
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br label %header
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header:
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%i = phi i32 [ 0, %entry ], [ %i.inc, %next ]
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%cond = icmp sgt i32 %n, %i
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br i1 %cond, label %next, label %return
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next:
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%i.inc = add i32 %i, 1
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br label %header
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return:
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ret void
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}
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