| # 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: dont_combine_ptr_add |
| legalized: true |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $x0, $x1, $x2 |
| |
| ; G_PTR_ADD can become a madd, so we don't want to perform the combine. |
| |
| ; CHECK-LABEL: name: dont_combine_ptr_add |
| ; CHECK: liveins: $x0, $x1, $x2 |
| ; CHECK: %reg0:_(s64) = COPY $x0 |
| ; CHECK: %ptr:_(p0) = COPY $x2 |
| ; CHECK: %cst:_(s64) = G_CONSTANT i64 6 |
| ; CHECK: %mul:_(s64) = nsw G_MUL %reg0, %cst |
| ; CHECK: %ptr_add:_(p0) = G_PTR_ADD %ptr, %mul(s64) |
| ; CHECK: $x0 = COPY %ptr_add(p0) |
| ; CHECK: RET_ReallyLR implicit $x0 |
| %reg0:_(s64) = COPY $x0 |
| %reg1:_(s64) = COPY $x1 |
| %ptr:_(p0) = COPY $x2 |
| %cst:_(s64) = G_CONSTANT i64 6 |
| %mul:_(s64) = nsw G_MUL %reg0, %cst |
| %ptr_add:_(p0) = G_PTR_ADD %ptr, %mul |
| $x0 = COPY %ptr_add(p0) |
| RET_ReallyLR implicit $x0 |