| Chris Lattner | 1db570d | 2010-03-14 22:31:16 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=x86 -mcpu=yonah | FileCheck %s |
| Evan Cheng | 18efe26 | 2007-12-14 02:13:44 +0000 | [diff] [blame] | 2 | |
| 3 | define i32 @t1(i32 %x) nounwind { |
| 4 | %tmp = tail call i32 @llvm.ctlz.i32( i32 %x ) |
| 5 | ret i32 %tmp |
| Chris Lattner | 1db570d | 2010-03-14 22:31:16 +0000 | [diff] [blame^] | 6 | ; CHECK: t1: |
| 7 | ; CHECK: bsrl |
| 8 | ; CHECK: cmov |
| Evan Cheng | 18efe26 | 2007-12-14 02:13:44 +0000 | [diff] [blame] | 9 | } |
| 10 | |
| 11 | declare i32 @llvm.ctlz.i32(i32) nounwind readnone |
| 12 | |
| 13 | define i32 @t2(i32 %x) nounwind { |
| 14 | %tmp = tail call i32 @llvm.cttz.i32( i32 %x ) |
| 15 | ret i32 %tmp |
| Chris Lattner | 1db570d | 2010-03-14 22:31:16 +0000 | [diff] [blame^] | 16 | ; CHECK: t2: |
| 17 | ; CHECK: bsfl |
| 18 | ; CHECK: cmov |
| Evan Cheng | 18efe26 | 2007-12-14 02:13:44 +0000 | [diff] [blame] | 19 | } |
| 20 | |
| 21 | declare i32 @llvm.cttz.i32(i32) nounwind readnone |
| Evan Cheng | 152804e | 2007-12-14 08:30:15 +0000 | [diff] [blame] | 22 | |
| 23 | define i16 @t3(i16 %x, i16 %y) nounwind { |
| 24 | entry: |
| 25 | %tmp1 = add i16 %x, %y |
| 26 | %tmp2 = tail call i16 @llvm.ctlz.i16( i16 %tmp1 ) ; <i16> [#uses=1] |
| 27 | ret i16 %tmp2 |
| Chris Lattner | 1db570d | 2010-03-14 22:31:16 +0000 | [diff] [blame^] | 28 | ; CHECK: t3: |
| 29 | ; CHECK: bsrw |
| 30 | ; CHECK: cmov |
| Evan Cheng | 152804e | 2007-12-14 08:30:15 +0000 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | declare i16 @llvm.ctlz.i16(i16) nounwind readnone |