| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -mtriple aarch64 -O0 -run-pass=aarch64-prelegalizer-combiner -global-isel -verify-machineinstrs %s -o - | FileCheck %s |
| |
| # Check we don't try to combine a load of < s8 as that will end up creating a illegal non-extending load. |
| --- | |
| define i8 @test(i1* %ptr) { |
| ret i8 undef |
| } |
| |
| ... |
| --- |
| name: test |
| alignment: 4 |
| tracksRegLiveness: true |
| registers: |
| - { id: 0, class: _ } |
| - { id: 1, class: _ } |
| - { id: 2, class: _ } |
| - { id: 3, class: _ } |
| body: | |
| bb.1 (%ir-block.0): |
| liveins: $x0 |
| |
| ; CHECK-LABEL: name: test |
| ; CHECK: liveins: $x0 |
| ; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0 |
| ; CHECK: [[LOAD:%[0-9]+]]:_(s1) = G_LOAD [[COPY]](p0) :: (load 1 from %ir.ptr) |
| ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[LOAD]](s1) |
| ; CHECK: $w0 = COPY [[ZEXT]](s32) |
| ; CHECK: RET_ReallyLR implicit $w0 |
| %0:_(p0) = COPY $x0 |
| %1:_(s1) = G_LOAD %0(p0) :: (load 1 from %ir.ptr) |
| %2:_(s8) = G_ZEXT %1(s1) |
| %3:_(s32) = G_ANYEXT %2(s8) |
| $w0 = COPY %3(s32) |
| RET_ReallyLR implicit $w0 |
| |
| ... |