xref: /aosp_15_r20/external/llvm/test/CodeGen/Mips/2010-11-09-CountLeading.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=mips < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; CHECK: clz $2, $4
4*9880d681SAndroid Build Coastguard Workerdefine i32 @t1(i32 %X) nounwind readnone {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %X, i1 true)
7*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
8*9880d681SAndroid Build Coastguard Worker}
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdeclare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Worker; CHECK: clz $2, $4
13*9880d681SAndroid Build Coastguard Workerdefine i32 @t2(i32 %X) nounwind readnone {
14*9880d681SAndroid Build Coastguard Workerentry:
15*9880d681SAndroid Build Coastguard Worker  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %X, i1 true)
16*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
17*9880d681SAndroid Build Coastguard Worker}
18*9880d681SAndroid Build Coastguard Worker
19*9880d681SAndroid Build Coastguard Worker; CHECK: clo $2, $4
20*9880d681SAndroid Build Coastguard Workerdefine i32 @t3(i32 %X) nounwind readnone {
21*9880d681SAndroid Build Coastguard Workerentry:
22*9880d681SAndroid Build Coastguard Worker  %neg = xor i32 %X, -1
23*9880d681SAndroid Build Coastguard Worker  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %neg, i1 true)
24*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
25*9880d681SAndroid Build Coastguard Worker}
26*9880d681SAndroid Build Coastguard Worker
27*9880d681SAndroid Build Coastguard Worker; CHECK: clo $2, $4
28*9880d681SAndroid Build Coastguard Workerdefine i32 @t4(i32 %X) nounwind readnone {
29*9880d681SAndroid Build Coastguard Workerentry:
30*9880d681SAndroid Build Coastguard Worker  %neg = xor i32 %X, -1
31*9880d681SAndroid Build Coastguard Worker  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %neg, i1 true)
32*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
33*9880d681SAndroid Build Coastguard Worker}
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