1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s 2 3 ; We used to not mark NZCV as being used in the continuation basic-block 4 ; when lowering a 128-bit "select" to branches. This meant a subsequent use 5 ; of the same flags gave an internal fault here. 6 7 declare void @foo(fp128) 8 9 define double @test_f128csel_flags(i32 %lhs, fp128 %a, fp128 %b) nounwind { 10 ; CHECK: test_f128csel_flags 11 12 %tst = icmp ne i32 %lhs, 42 13 %val = select i1 %tst, fp128 %a, fp128 %b 14 ; CHECK: cmp w0, #42 15 ; CHECK: b.eq .LBB0 16 17 call void @foo(fp128 %val) 18 %retval = select i1 %tst, double 4.0, double 5.0 19 20 ; It's also reasonably important that the actual fcsel comes before the 21 ; function call since bl may corrupt NZCV. We were doing the right thing anyway, 22 ; but just as well test it while we're here. 23 ; CHECK: fcsel {{d[0-9]+}}, {{d[0-9]+}}, {{d[0-9]+}}, ne 24 ; CHECK: bl foo 25 26 ret double %retval 27 } 28
