| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s |
| |
| ... |
| --- |
| name: or_combine_sext |
| tracksRegLiveness: true |
| legalized: true |
| body: | |
| bb.0: |
| liveins: $w0, $w1 |
| ; or (sext X), (sext Y) --> sext (or X, Y) |
| ; |
| ; CHECK-LABEL: name: or_combine_sext |
| ; CHECK: liveins: $w0, $w1 |
| ; CHECK: %x:_(s32) = COPY $w0 |
| ; CHECK: %y:_(s32) = COPY $w1 |
| ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR %x, %y |
| ; CHECK: %logic_op:_(s64) = G_SEXT [[OR]](s32) |
| ; CHECK: $x0 = COPY %logic_op(s64) |
| ; CHECK: RET_ReallyLR implicit $x0 |
| %x:_(s32) = COPY $w0 |
| %y:_(s32) = COPY $w1 |
| %hand1:_(s64) = G_SEXT %x(s32) |
| %hand2:_(s64) = G_SEXT %y(s32) |
| %logic_op:_(s64) = G_OR %hand1, %hand2 |
| $x0 = COPY %logic_op(s64) |
| RET_ReallyLR implicit $x0 |
| |
| ... |
| --- |
| name: illegal_ty |
| tracksRegLiveness: true |
| legalized: true |
| body: | |
| bb.0: |
| liveins: $w0, $w1 |
| ; Post-legalization, we should not perform the optimization here, since |
| ; it would create an illegal G_OR. |
| ; |
| ; CHECK-LABEL: name: illegal_ty |
| ; CHECK: liveins: $w0, $w1 |
| ; CHECK: %x_wide:_(s32) = COPY $w0 |
| ; CHECK: %y_wide:_(s32) = COPY $w1 |
| ; CHECK: %x:_(s1) = G_TRUNC %x_wide(s32) |
| ; CHECK: %y:_(s1) = G_TRUNC %y_wide(s32) |
| ; CHECK: %hand1:_(s64) = G_SEXT %x(s1) |
| ; CHECK: %hand2:_(s64) = G_SEXT %y(s1) |
| ; CHECK: %logic_op:_(s64) = G_OR %hand1, %hand2 |
| ; CHECK: $x0 = COPY %logic_op(s64) |
| ; CHECK: RET_ReallyLR implicit $x0 |
| %x_wide:_(s32) = COPY $w0 |
| %y_wide:_(s32) = COPY $w1 |
| %x:_(s1) = G_TRUNC %x_wide |
| %y:_(s1) = G_TRUNC %y_wide |
| %hand1:_(s64) = G_SEXT %x(s1) |
| %hand2:_(s64) = G_SEXT %y(s1) |
| %logic_op:_(s64) = G_OR %hand1, %hand2 |
| $x0 = COPY %logic_op(s64) |
| RET_ReallyLR implicit $x0 |
