| Craig Topper | 40a1edc | 2017-11-23 19:25:45 +0000 | [diff] [blame] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| 2 | ; RUN: llc < %s -mtriple=x86_64-unknown -mattr=lzcnt | FileCheck %s |
| 3 | |
| 4 | ; Make sure we emit opoosite setcc instructions. |
| 5 | define i64 @pr35399(i64, i8*, i8*) { |
| 6 | ; CHECK-LABEL: pr35399: |
| Francis Visoiu Mistrih | 25528d6 | 2017-12-04 17:18:51 +0000 | [diff] [blame] | 7 | ; CHECK: # %bb.0: |
| Craig Topper | 40a1edc | 2017-11-23 19:25:45 +0000 | [diff] [blame] | 8 | ; CHECK-NEXT: lzcntq %rdi, %rax |
| 9 | ; CHECK-NEXT: setae (%rsi) |
| 10 | ; CHECK-NEXT: setb (%rdx) |
| 11 | ; CHECK-NEXT: retq |
| 12 | %4 = tail call i64 @llvm.ctlz.i64(i64 %0, i1 false) |
| 13 | %5 = icmp ne i64 %0, 0 |
| 14 | %6 = zext i1 %5 to i8 |
| 15 | store i8 %6, i8* %1, align 1 |
| 16 | %7 = xor i1 %5, true |
| 17 | %8 = zext i1 %7 to i8 |
| 18 | store i8 %8, i8* %2, align 1 |
| 19 | ret i64 %4 |
| 20 | } |
| 21 | |
| 22 | declare i64 @llvm.ctlz.i64(i64, i1) |