1 ; RUN: llc -march=x86-64 -mcpu=corei7 < %s | FileCheck %s
3 declare i64 @llvm.ctpop.i64(i64) nounwind readnone
5 define i32 @test1(i64 %x) nounwind readnone {
6 %count = tail call i64 @llvm.ctpop.i64(i64 %x)
7 %cast = trunc i64 %count to i32
8 %cmp = icmp ugt i32 %cast, 1
9 %conv = zext i1 %cmp to i32
10 ret i32 %conv
11 ; CHECK-LABEL: test1:
12 ; CHECK: leaq -1([[A0:%rdi|%rcx]])
13 ; CHECK-NEXT: testq
14 ; CHECK-NEXT: setne
15 ; CHECK: ret
16 }
19 define i32 @test2(i64 %x) nounwind readnone {
20 %count = tail call i64 @llvm.ctpop.i64(i64 %x)
21 %cmp = icmp ult i64 %count, 2
22 %conv = zext i1 %cmp to i32
23 ret i32 %conv
24 ; CHECK-LABEL: test2:
25 ; CHECK: leaq -1([[A0]])
26 ; CHECK-NEXT: testq
27 ; CHECK-NEXT: sete
28 ; CHECK: ret
29 }
31 define i32 @test3(i64 %x) nounwind readnone {
32 %count = tail call i64 @llvm.ctpop.i64(i64 %x)
33 %cast = trunc i64 %count to i6 ; Too small for 0-64
34 %cmp = icmp ult i6 %cast, 2
35 %conv = zext i1 %cmp to i32
36 ret i32 %conv
37 ; CHECK-LABEL: test3:
38 ; CHECK: cmpl $2
39 ; CHECK: ret
40 }