xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/2007-03-24-cntlzd.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mcpu=g5 < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Workertarget datalayout = "E-m:e-i64:64-n32:64"
3*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc64-unknown-linux-gnu"
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Workerdefine i32 @_ZNK4llvm5APInt17countLeadingZerosEv(i64 *%t) nounwind {
6*9880d681SAndroid Build Coastguard Worker        %tmp19 = load i64, i64* %t
7*9880d681SAndroid Build Coastguard Worker        %tmp22 = tail call i64 @llvm.ctlz.i64( i64 %tmp19, i1 true )             ; <i64> [#uses=1]
8*9880d681SAndroid Build Coastguard Worker        %tmp23 = trunc i64 %tmp22 to i32
9*9880d681SAndroid Build Coastguard Worker        %tmp89 = add i32 %tmp23, -64          ; <i32> [#uses=1]
10*9880d681SAndroid Build Coastguard Worker        %tmp90 = add i32 %tmp89, 0            ; <i32> [#uses=1]
11*9880d681SAndroid Build Coastguard Worker        ret i32 %tmp90
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @_ZNK4llvm5APInt17countLeadingZerosEv
14*9880d681SAndroid Build Coastguard Worker; CHECK: ld [[REG1:[0-9]+]], 0(3)
15*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: cntlzd [[REG2:[0-9]+]], [[REG1]]
16*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: addi 3, [[REG2]], -64
17*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: blr
18*9880d681SAndroid Build Coastguard Worker}
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard Workerdeclare i64 @llvm.ctlz.i64(i64, i1)
21