llvm-project/llvm/test/Analysis/ScalarEvolution/exhaustive-trip-counts.ll

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; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define void @f_0() {
; CHECK-LABEL: Printing analysis 'Scalar Evolution Analysis' for function 'f_0':
; CHECK: Loop %for.body: backedge-taken count is 5
; CHECK: Loop %for.body: max backedge-taken count is 5
; CHECK: Loop %for.body: Predicated backedge-taken count is 5
entry:
br label %for.body
for.body:
%i.05 = phi i32 [ 32, %entry ], [ %div4, %for.body ]
tail call void @dummy()
%div4 = lshr i32 %i.05, 1
%cmp = icmp eq i32 %div4, 0
br i1 %cmp, label %for.cond.cleanup, label %for.body
for.cond.cleanup:
ret void
}
declare void @dummy()