; RUN: llc < %s -march=x86-64 -mattr=+lzcnt | FileCheck %s declare i8 @llvm.ctlz.i8(i8, i1) nounwind readnone declare i16 @llvm.ctlz.i16(i16, i1) nounwind readnone declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone declare i64 @llvm.ctlz.i64(i64, i1) nounwind readnone define i8 @t1(i8 %x) nounwind { %tmp = tail call i8 @llvm.ctlz.i8( i8 %x, i1 false ) ret i8 %tmp ; CHECK-LABEL: t1: ; CHECK: lzcntl } define i16 @t2(i16 %x) nounwind { %tmp = tail call i16 @llvm.ctlz.i16( i16 %x, i1 false ) ret i16 %tmp ; CHECK-LABEL: t2: ; CHECK: lzcntw } define i32 @t3(i32 %x) nounwind { %tmp = tail call i32 @llvm.ctlz.i32( i32 %x, i1 false ) ret i32 %tmp ; CHECK-LABEL: t3: ; CHECK: lzcntl } define i64 @t4(i64 %x) nounwind { %tmp = tail call i64 @llvm.ctlz.i64( i64 %x, i1 false ) ret i64 %tmp ; CHECK-LABEL: t4: ; CHECK: lzcntq } define i8 @t5(i8 %x) nounwind { %tmp = tail call i8 @llvm.ctlz.i8( i8 %x, i1 true ) ret i8 %tmp ; CHECK-LABEL: t5: ; CHECK: lzcntl } define i16 @t6(i16 %x) nounwind { %tmp = tail call i16 @llvm.ctlz.i16( i16 %x, i1 true ) ret i16 %tmp ; CHECK-LABEL: t6: ; CHECK: lzcntw } define i32 @t7(i32 %x) nounwind { %tmp = tail call i32 @llvm.ctlz.i32( i32 %x, i1 true ) ret i32 %tmp ; CHECK-LABEL: t7: ; CHECK: lzcntl } define i64 @t8(i64 %x) nounwind { %tmp = tail call i64 @llvm.ctlz.i64( i64 %x, i1 true ) ret i64 %tmp ; CHECK-LABEL: t8: ; CHECK: lzcntq }