xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/apint-div2.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 <= 1024.
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 i333 @test1(i333 %X) {
8*9880d681SAndroid Build Coastguard Worker    %Y = udiv i333 %X, 70368744177664
9*9880d681SAndroid Build Coastguard Worker    ret i333 %Y
10*9880d681SAndroid Build Coastguard Worker}
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerdefine i499 @test2(i499 %X) {
13*9880d681SAndroid Build Coastguard Worker    %tmp.0 = shl i499 4096, 197
14*9880d681SAndroid Build Coastguard Worker    %Y = udiv i499 %X, %tmp.0
15*9880d681SAndroid Build Coastguard Worker    ret i499 %Y
16*9880d681SAndroid Build Coastguard Worker}
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerdefine i599 @test3(i599 %X, i1 %C) {
19*9880d681SAndroid Build Coastguard Worker        %V = select i1 %C, i599 70368744177664, i599 4096
20*9880d681SAndroid Build Coastguard Worker        %R = udiv i599 %X, %V
21*9880d681SAndroid Build Coastguard Worker        ret i599 %R
22*9880d681SAndroid Build Coastguard Worker}
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