1; RUN: llc -march=x86-64 -mattr=+popcnt < %s | FileCheck %s 2 3define i8 @cnt8(i8 %x) nounwind readnone { 4 %cnt = tail call i8 @llvm.ctpop.i8(i8 %x) 5 ret i8 %cnt 6; CHECK-LABEL: cnt8: 7; CHECK: popcntw 8; CHECK: ret 9} 10 11define i16 @cnt16(i16 %x) nounwind readnone { 12 %cnt = tail call i16 @llvm.ctpop.i16(i16 %x) 13 ret i16 %cnt 14; CHECK-LABEL: cnt16: 15; CHECK: popcntw 16; CHECK: ret 17} 18 19define i32 @cnt32(i32 %x) nounwind readnone { 20 %cnt = tail call i32 @llvm.ctpop.i32(i32 %x) 21 ret i32 %cnt 22; CHECK-LABEL: cnt32: 23; CHECK: popcntl 24; CHECK: ret 25} 26 27define i64 @cnt64(i64 %x) nounwind readnone { 28 %cnt = tail call i64 @llvm.ctpop.i64(i64 %x) 29 ret i64 %cnt 30; CHECK-LABEL: cnt64: 31; CHECK: popcntq 32; CHECK: ret 33} 34 35declare i8 @llvm.ctpop.i8(i8) nounwind readnone 36declare i16 @llvm.ctpop.i16(i16) nounwind readnone 37declare i32 @llvm.ctpop.i32(i32) nounwind readnone 38declare i64 @llvm.ctpop.i64(i64) nounwind readnone 39