1; RUN: llc < %s -mtriple=x86_64-- -mattr=+lzcnt | FileCheck %s 2 3declare i8 @llvm.ctlz.i8(i8, i1) nounwind readnone 4declare i16 @llvm.ctlz.i16(i16, i1) nounwind readnone 5declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone 6declare i64 @llvm.ctlz.i64(i64, i1) nounwind readnone 7 8define i8 @t1(i8 %x) nounwind { 9 %tmp = tail call i8 @llvm.ctlz.i8( i8 %x, i1 false ) 10 ret i8 %tmp 11; CHECK-LABEL: t1: 12; CHECK: lzcntl 13} 14 15define i16 @t2(i16 %x) nounwind { 16 %tmp = tail call i16 @llvm.ctlz.i16( i16 %x, i1 false ) 17 ret i16 %tmp 18; CHECK-LABEL: t2: 19; CHECK: lzcntw 20} 21 22define i32 @t3(i32 %x) nounwind { 23 %tmp = tail call i32 @llvm.ctlz.i32( i32 %x, i1 false ) 24 ret i32 %tmp 25; CHECK-LABEL: t3: 26; CHECK: lzcntl 27} 28 29define i64 @t4(i64 %x) nounwind { 30 %tmp = tail call i64 @llvm.ctlz.i64( i64 %x, i1 false ) 31 ret i64 %tmp 32; CHECK-LABEL: t4: 33; CHECK: lzcntq 34} 35 36define i8 @t5(i8 %x) nounwind { 37 %tmp = tail call i8 @llvm.ctlz.i8( i8 %x, i1 true ) 38 ret i8 %tmp 39; CHECK-LABEL: t5: 40; CHECK: lzcntl 41} 42 43define i16 @t6(i16 %x) nounwind { 44 %tmp = tail call i16 @llvm.ctlz.i16( i16 %x, i1 true ) 45 ret i16 %tmp 46; CHECK-LABEL: t6: 47; CHECK: lzcntw 48} 49 50define i32 @t7(i32 %x) nounwind { 51 %tmp = tail call i32 @llvm.ctlz.i32( i32 %x, i1 true ) 52 ret i32 %tmp 53; CHECK-LABEL: t7: 54; CHECK: lzcntl 55} 56 57define i64 @t8(i64 %x) nounwind { 58 %tmp = tail call i64 @llvm.ctlz.i64( i64 %x, i1 true ) 59 ret i64 %tmp 60; CHECK-LABEL: t8: 61; CHECK: lzcntq 62} 63