; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=corei7 | FileCheck %s declare i8 @llvm.ctpop.i8(i8) nounwind readnone declare i64 @llvm.ctpop.i64(i64) nounwind readnone define i32 @test1(i64 %x) nounwind readnone { ; CHECK-LABEL: test1: ; CHECK: # %bb.0: ; CHECK-NEXT: leaq -1(%rdi), %rcx ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testq %rcx, %rdi ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cast = trunc i64 %count to i32 %cmp = icmp ugt i32 %cast, 1 %conv = zext i1 %cmp to i32 ret i32 %conv } define i32 @test2(i64 %x) nounwind readnone { ; CHECK-LABEL: test2: ; CHECK: # %bb.0: ; CHECK-NEXT: leaq -1(%rdi), %rcx ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testq %rcx, %rdi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cmp = icmp ult i64 %count, 2 %conv = zext i1 %cmp to i32 ret i32 %conv } define i32 @test3(i64 %x) nounwind readnone { ; CHECK-LABEL: test3: ; CHECK: # %bb.0: ; CHECK-NEXT: popcntq %rdi, %rcx ; CHECK-NEXT: andb $63, %cl ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: cmpb $2, %cl ; CHECK-NEXT: setb %al ; CHECK-NEXT: retq %count = tail call i64 @llvm.ctpop.i64(i64 %x) %cast = trunc i64 %count to i6 ; Too small for 0-64 %cmp = icmp ult i6 %cast, 2 %conv = zext i1 %cmp to i32 ret i32 %conv } define i8 @test4(i8 %x) nounwind readnone { ; CHECK-LABEL: test4: ; CHECK: # %bb.0: ; CHECK-NEXT: andl $127, %edi ; CHECK-NEXT: popcntl %edi, %eax ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq %x2 = and i8 %x, 127 %count = tail call i8 @llvm.ctpop.i8(i8 %x2) %and = and i8 %count, 7 ret i8 %and }