# 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 can fold compares into integer selects. # # This is an integer version of fold-fp-select.mir. # ... --- name: eq alignment: 4 legalized: true regBankSelected: true tracksRegLiveness: true body: | bb.0: liveins: $w0, $w1 ; CHECK-LABEL: name: eq ; CHECK: liveins: $w0, $w1 ; CHECK: [[COPY:%[0-9]+]]:gpr32sp = COPY $w0 ; CHECK: [[COPY1:%[0-9]+]]:gpr32 = COPY $w1 ; CHECK: [[COPY2:%[0-9]+]]:gpr32 = COPY $wzr ; CHECK: [[SUBSWri:%[0-9]+]]:gpr32 = SUBSWri [[COPY]], 0, 0, implicit-def $nzcv ; CHECK: [[CSELWr:%[0-9]+]]:gpr32 = CSELWr [[COPY2]], [[COPY1]], 0, implicit $nzcv ; CHECK: $w0 = COPY [[CSELWr]] ; CHECK: RET_ReallyLR implicit $w0 %0:gpr(s32) = COPY $w0 %1:gpr(s32) = COPY $w1 %2:gpr(s32) = G_CONSTANT i32 0 %5:gpr(s32) = G_ICMP intpred(eq), %0(s32), %2 %3:gpr(s1) = G_TRUNC %5(s32) %4:gpr(s32) = G_SELECT %3(s1), %2, %1 $w0 = COPY %4(s32) RET_ReallyLR implicit $w0 ... --- name: using_fcmp alignment: 4 legalized: true regBankSelected: true tracksRegLiveness: true body: | bb.0: liveins: $s0, $w0, $w1 ; CHECK-LABEL: name: using_fcmp ; CHECK: liveins: $s0, $w0, $w1 ; CHECK: [[COPY:%[0-9]+]]:gpr32 = COPY $w1 ; CHECK: [[COPY1:%[0-9]+]]:fpr32 = COPY $s0 ; CHECK: [[COPY2:%[0-9]+]]:gpr32 = COPY $wzr ; CHECK: FCMPSri [[COPY1]], implicit-def $nzcv ; CHECK: [[CSELWr:%[0-9]+]]:gpr32 = CSELWr [[COPY2]], [[COPY]], 0, implicit $nzcv ; CHECK: $w0 = COPY [[CSELWr]] ; CHECK: RET_ReallyLR implicit $w0 %1:gpr(s32) = COPY $w1 %2:fpr(s32) = COPY $s0 %3:fpr(s32) = G_FCONSTANT float 0.000000e+00 %6:gpr(s32) = G_CONSTANT i32 0 %7:gpr(s32) = G_FCMP floatpred(oeq), %2(s32), %3 %4:gpr(s1) = G_TRUNC %7(s32) %5:gpr(s32) = G_SELECT %4(s1), %6, %1 $w0 = COPY %5(s32) RET_ReallyLR implicit $w0 ... --- name: csinc alignment: 4 legalized: true regBankSelected: true tracksRegLiveness: true body: | bb.0: liveins: $w0, $w1 ; CHECK-LABEL: name: csinc ; CHECK: liveins: $w0, $w1 ; CHECK: [[COPY:%[0-9]+]]:gpr32common = COPY $w0 ; CHECK: [[SUBSWri:%[0-9]+]]:gpr32 = SUBSWri [[COPY]], 1, 0, implicit-def $nzcv ; CHECK: [[CSINCWr:%[0-9]+]]:gpr32 = CSINCWr [[COPY]], $wzr, 0, implicit $nzcv ; CHECK: $w0 = COPY [[CSINCWr]] ; CHECK: RET_ReallyLR implicit $w0 %0:gpr(s32) = COPY $w0 %1:gpr(s32) = COPY $w1 %2:gpr(s32) = G_CONSTANT i32 1 %5:gpr(s32) = G_ICMP intpred(eq), %0(s32), %2 %3:gpr(s1) = G_TRUNC %5(s32) %4:gpr(s32) = G_SELECT %3(s1), %0, %2 $w0 = COPY %4(s32) RET_ReallyLR implicit $w0 ...