| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s |
| |
| ; This used to miscompile because foldCSELOfCSEL function |
| ; doesn't check const x != y |
| define i1 @test() { |
| ; CHECK-LABEL: test: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: mov x8, #9007199254740990 |
| ; CHECK-NEXT: movk x8, #65503, lsl #16 |
| ; CHECK-NEXT: movk x8, #65407, lsl #32 |
| ; CHECK-NEXT: cmp x8, x8 |
| ; CHECK-NEXT: csel x9, x8, x8, gt |
| ; CHECK-NEXT: cmp x9, x8 |
| ; CHECK-NEXT: cset w0, eq |
| ; CHECK-NEXT: ret |
| %1 = select i1 false, i64 0, i64 9006649496829950 |
| %2 = call i64 @llvm.smax.i64(i64 %1, i64 9006649496829950) |
| %3 = icmp eq i64 %2, 9006649496829950 |
| ret i1 %3 |
| } |
| |
| declare i64 @llvm.smax.i64(i64, i64) |
