| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs -mtriple aarch64-unknown-unknown %s -o - | FileCheck %s |
| # RUN: llc -debugify-and-strip-all-safe -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs -mtriple aarch64-unknown-unknown %s -o - | FileCheck %s |
| ... |
| --- |
| name: fconstant_to_constant_s32 |
| alignment: 4 |
| tracksRegLiveness: true |
| frameInfo: |
| maxAlignment: 1 |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $x0 |
| ; Only feeding into stores here. Also, the value can't be materialized using |
| ; fmov, so it's strictly better to use a mov. |
| ; CHECK-LABEL: name: fconstant_to_constant_s32 |
| ; CHECK: liveins: $x0 |
| ; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0 |
| ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1028443341 |
| ; CHECK: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 524 |
| ; CHECK: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C1]](s64) |
| ; CHECK: G_STORE [[C]](s32), [[PTR_ADD]](p0) :: (store 4) |
| ; CHECK: RET_ReallyLR |
| %0:_(p0) = COPY $x0 |
| %3:_(s32) = G_FCONSTANT float 0x3FA99999A0000000 |
| %1:_(s64) = G_CONSTANT i64 524 |
| %2:_(p0) = G_PTR_ADD %0, %1(s64) |
| G_STORE %3(s32), %2(p0) :: (store 4) |
| RET_ReallyLR |
| ... |
| --- |
| name: fconstant_to_constant_s64 |
| alignment: 4 |
| tracksRegLiveness: true |
| frameInfo: |
| maxAlignment: 1 |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $x0 |
| ; CHECK-LABEL: name: fconstant_to_constant_s64 |
| ; CHECK: liveins: $x0 |
| ; CHECK: %ptr:_(p0) = COPY $x0 |
| ; CHECK: %c:_(s64) = G_CONSTANT i64 0 |
| ; CHECK: G_STORE %c(s64), %ptr(p0) :: (store 8) |
| ; CHECK: RET_ReallyLR |
| %ptr:_(p0) = COPY $x0 |
| %c:_(s64) = G_FCONSTANT double 0.0 |
| G_STORE %c(s64), %ptr(p0) :: (store 8) |
| RET_ReallyLR |
| ... |
| --- |
| name: no_store_means_no_combine |
| alignment: 4 |
| tracksRegLiveness: true |
| frameInfo: |
| maxAlignment: 1 |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $x0, $x1 |
| ; When we aren't feeding into a store, the combine shouldn't happen. |
| ; CHECK-LABEL: name: no_store_means_no_combine |
| ; CHECK: liveins: $x0, $x1 |
| ; CHECK: %v:_(s64) = COPY $x0 |
| ; CHECK: %c:_(s64) = G_FCONSTANT double 0.000000e+00 |
| ; CHECK: %add:_(s64) = G_FADD %v, %c |
| ; CHECK: RET_ReallyLR implicit %add(s64) |
| %v:_(s64) = COPY $x0 |
| %c:_(s64) = G_FCONSTANT double 0.0 |
| %add:_(s64) = G_FADD %v, %c |
| RET_ReallyLR implicit %add |
| ... |