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