| # RUN: not --crash llc -march=aarch64 -o /dev/null -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s |
| # REQUIRES: aarch64-registered-target |
| |
| # Undef uses are illegal for generic vregs. |
| |
| --- |
| name: test_undef_use |
| liveins: |
| body: | |
| bb.0: |
| %0:_(s32) = G_CONSTANT i32 0 |
| |
| ; Test generic instruction |
| ; CHECK: *** Bad machine code: Generic virtual register use cannot be undef *** |
| G_STORE %0, undef %1:_(p0) :: (store (s32)) |
| |
| ; Make sure this fails on a post-isel generic instruction. |
| ; CHECK: *** Bad machine code: Generic virtual register use cannot be undef *** |
| $x0 = COPY undef %2:_(s64) |
| |
| ; Make sure this fails with a target instruction |
| ; CHECK: *** Bad machine code: Generic virtual register use cannot be undef *** |
| RET_ReallyLR implicit $x0, implicit undef %3:_(s32) |
| ... |
| |
