| # RUN: llc -O0 -run-pass=legalizer -global-isel-abort=0 -pass-remarks-missed='gisel*' %s -o - 2>&1 | FileCheck %s |
| |
| --- | |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--" |
| define void @test_merge_s4() { |
| ret void |
| } |
| ... |
| |
| --- |
| name: test_merge_s4 |
| registers: |
| - { id: 0, class: _ } |
| - { id: 1, class: _ } |
| - { id: 2, class: _ } |
| - { id: 3, class: _ } |
| - { id: 4, class: _ } |
| body: | |
| bb.0: |
| %0(s64) = G_CONSTANT i64 0 |
| %1(s4) = G_TRUNC %0(s64) |
| ; Previously, LegalizerInfo was assuming all G_MERGE_VALUES and G_UNMERGE_VALUES |
| ; instructions are legal. Make sure that is no longer happening. |
| ; CHECK: unable to legalize instruction: {{.*}} G_MERGE_VALUES |
| %2(s8) = G_MERGE_VALUES %1(s4), %1(s4) |
| %3(s8) = COPY %2(s8) |
| %4(s64) = G_ANYEXT %3(s8) |
| $x0 = COPY %4(s64) |
| ... |
