reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
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# 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