xref: /aosp_15_r20/external/llvm/test/Analysis/ScalarEvolution/2008-02-15-UMax.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; PR2003
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker; CHECK: umax
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine i32 @foo(i32 %n) {
7*9880d681SAndroid Build Coastguard Workerentry:
8*9880d681SAndroid Build Coastguard Worker        br label %header
9*9880d681SAndroid Build Coastguard Workerheader:
10*9880d681SAndroid Build Coastguard Worker        %i = phi i32 [ 100, %entry ], [ %i.inc, %next ]
11*9880d681SAndroid Build Coastguard Worker        %cond = icmp ult i32 %i, %n
12*9880d681SAndroid Build Coastguard Worker        br i1 %cond, label %next, label %return
13*9880d681SAndroid Build Coastguard Workernext:
14*9880d681SAndroid Build Coastguard Worker        %i.inc = add i32 %i, 1
15*9880d681SAndroid Build Coastguard Worker        br label %header
16*9880d681SAndroid Build Coastguard Workerreturn:
17*9880d681SAndroid Build Coastguard Worker        ret i32 %i
18*9880d681SAndroid Build Coastguard Worker}
19*9880d681SAndroid Build Coastguard Worker
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