| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -O0 -mtriple=aarch64 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s |
| # Verify that we get FCMPSri when we compare against 0.0 and that we get |
| # FCMPSrr otherwise. |
| |
| ... |
| --- |
| name: zero |
| alignment: 4 |
| legalized: true |
| regBankSelected: true |
| tracksRegLiveness: true |
| body: | |
| bb.1: |
| liveins: $s0, $s1 |
| |
| ; CHECK-LABEL: name: zero |
| ; CHECK: liveins: $s0, $s1 |
| ; CHECK: [[COPY:%[0-9]+]]:fpr32 = COPY $s0 |
| ; CHECK: FCMPSri [[COPY]], implicit-def $nzcv |
| ; CHECK: [[CSINCWr:%[0-9]+]]:gpr32 = CSINCWr $wzr, $wzr, 1, implicit $nzcv |
| ; CHECK: $s0 = COPY [[CSINCWr]] |
| ; CHECK: RET_ReallyLR implicit $s0 |
| %0:fpr(s32) = COPY $s0 |
| %1:fpr(s32) = COPY $s1 |
| %2:fpr(s32) = G_FCONSTANT float 0.000000e+00 |
| %3:gpr(s32) = G_FCMP floatpred(oeq), %0(s32), %2 |
| $s0 = COPY %3(s32) |
| RET_ReallyLR implicit $s0 |
| |
| ... |
| --- |
| name: notzero |
| alignment: 4 |
| legalized: true |
| regBankSelected: true |
| tracksRegLiveness: true |
| machineFunctionInfo: {} |
| body: | |
| bb.1: |
| liveins: $s0, $s1 |
| |
| ; CHECK-LABEL: name: notzero |
| ; CHECK: liveins: $s0, $s1 |
| ; CHECK: [[COPY:%[0-9]+]]:fpr32 = COPY $s0 |
| ; CHECK: [[FMOVSi:%[0-9]+]]:fpr32 = FMOVSi 112 |
| ; CHECK: FCMPSrr [[COPY]], [[FMOVSi]], implicit-def $nzcv |
| ; CHECK: [[CSINCWr:%[0-9]+]]:gpr32 = CSINCWr $wzr, $wzr, 1, implicit $nzcv |
| ; CHECK: $s0 = COPY [[CSINCWr]] |
| ; CHECK: RET_ReallyLR implicit $s0 |
| %0:fpr(s32) = COPY $s0 |
| %1:fpr(s32) = COPY $s1 |
| %2:fpr(s32) = G_FCONSTANT float 1.000000e+00 |
| %3:gpr(s32) = G_FCMP floatpred(oeq), %0(s32), %2 |
| $s0 = COPY %3(s32) |
| RET_ReallyLR implicit $s0 |