xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/apint-div1.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; This test makes sure that div instructions are properly eliminated.
2*9880d681SAndroid Build Coastguard Worker; This test is for Integer BitWidth < 64 && BitWidth % 2 != 0.
3*9880d681SAndroid Build Coastguard Worker;
4*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | not grep div
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Workerdefine i33 @test1(i33 %X) {
8*9880d681SAndroid Build Coastguard Worker    %Y = udiv i33 %X, 4096
9*9880d681SAndroid Build Coastguard Worker    ret i33 %Y
10*9880d681SAndroid Build Coastguard Worker}
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerdefine i49 @test2(i49 %X) {
13*9880d681SAndroid Build Coastguard Worker    %tmp.0 = shl i49 4096, 17
14*9880d681SAndroid Build Coastguard Worker    %Y = udiv i49 %X, %tmp.0
15*9880d681SAndroid Build Coastguard Worker    ret i49 %Y
16*9880d681SAndroid Build Coastguard Worker}
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerdefine i59 @test3(i59 %X, i1 %C) {
19*9880d681SAndroid Build Coastguard Worker        %V = select i1 %C, i59 1024, i59 4096
20*9880d681SAndroid Build Coastguard Worker        %R = udiv i59 %X, %V
21*9880d681SAndroid Build Coastguard Worker        ret i59 %R
22*9880d681SAndroid Build Coastguard Worker}
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