| ; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s |
| |
| ; We used to not mark NZCV as being used in the continuation basic-block |
| ; when lowering a 128-bit "select" to branches. This meant a subsequent use |
| ; of the same flags gave an internal fault here. |
| |
| declare void @foo(fp128) |
| |
| define double @test_f128csel_flags(i32 %lhs, fp128 %a, fp128 %b) nounwind { |
| ; CHECK: test_f128csel_flags |
| |
| %tst = icmp ne i32 %lhs, 42 |
| %val = select i1 %tst, fp128 %a, fp128 %b |
| ; CHECK: cmp w0, #42 |
| ; CHECK: b.eq .LBB0 |
| |
| call void @foo(fp128 %val) |
| %retval = select i1 %tst, double 4.0, double 5.0 |
| |
| ; It's also reasonably important that the actual fcsel comes before the |
| ; function call since bl may corrupt NZCV. We were doing the right thing anyway, |
| ; but just as well test it while we're here. |
| ; CHECK: fcsel {{d[0-9]+}}, {{d[0-9]+}}, {{d[0-9]+}}, ne |
| ; CHECK: bl foo |
| |
| ret double %retval |
| } |