xref: /aosp_15_r20/external/llvm/test/Analysis/ScalarEvolution/2007-09-27-LargeStepping.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -analyze -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; PR1706
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker; CHECK: backedge-taken count is 13
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine i32 @f() {
7*9880d681SAndroid Build Coastguard Workerentry:
8*9880d681SAndroid Build Coastguard Worker	br label %bb5
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerbb:		; preds = %bb5
11*9880d681SAndroid Build Coastguard Worker	%tmp2 = shl i32 %j.0, 1		; <i32> [#uses=1]
12*9880d681SAndroid Build Coastguard Worker	%tmp4 = add i32 %i.0, 268435456		; <i32> [#uses=1]
13*9880d681SAndroid Build Coastguard Worker	br label %bb5
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Workerbb5:		; preds = %bb, %entry
16*9880d681SAndroid Build Coastguard Worker	%j.0 = phi i32 [ 1, %entry ], [ %tmp2, %bb ]		; <i32> [#uses=2]
17*9880d681SAndroid Build Coastguard Worker	%i.0 = phi i32 [ -1879048192, %entry ], [ %tmp4, %bb ]		; <i32> [#uses=2]
18*9880d681SAndroid Build Coastguard Worker	%tmp7 = icmp slt i32 %i.0, 1610612736		; <i1> [#uses=1]
19*9880d681SAndroid Build Coastguard Worker	br i1 %tmp7, label %bb, label %return
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Workerreturn:		; preds = %bb5
22*9880d681SAndroid Build Coastguard Worker	ret i32 %j.0
23*9880d681SAndroid Build Coastguard Worker}
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