|  | ; RUN: not llc < %s -mtriple=thumbv8m.base-none-eabi 2>&1 | FileCheck %s --check-prefix=BASELINE | 
|  | ; RUN: llc < %s -mtriple=thumbv8m.main-none-eabi -mattr=+dsp 2>&1 | FileCheck %s --check-prefix=MAINLINE | 
|  |  | 
|  | ; BASELINE: LLVM ERROR: Invalid register name "basepri_max_ns". | 
|  |  | 
|  | define i32 @read_mclass_registers() nounwind { | 
|  | entry: | 
|  | ; MAINLINE-LABEL: read_mclass_registers: | 
|  | ; MAINLINE:   mrs r0, apsr | 
|  | ; MAINLINE:   mrs r1, iapsr | 
|  | ; MAINLINE:   mrs r1, eapsr | 
|  | ; MAINLINE:   mrs r1, xpsr | 
|  | ; MAINLINE:   mrs r1, ipsr | 
|  | ; MAINLINE:   mrs r1, epsr | 
|  | ; MAINLINE:   mrs r1, iepsr | 
|  | ; MAINLINE:   mrs r1, msp | 
|  | ; MAINLINE:   mrs r1, psp | 
|  | ; MAINLINE:   mrs r1, primask | 
|  | ; MAINLINE:   mrs r1, basepri | 
|  | ; MAINLINE:   mrs r1, basepri_max | 
|  | ; MAINLINE:   mrs r1, faultmask | 
|  | ; MAINLINE:   mrs r1, control | 
|  | ; MAINLINE:   mrs r1, msplim | 
|  | ; MAINLINE:   mrs r1, psplim | 
|  | ; MAINLINE:   mrs r1, msp_ns | 
|  | ; MAINLINE:   mrs r1, psp_ns | 
|  | ; MAINLINE:   mrs r1, msplim_ns | 
|  | ; MAINLINE:   mrs r1, psplim_ns | 
|  | ; MAINLINE:   mrs r1, primask_ns | 
|  | ; MAINLINE:   mrs r1, basepri_ns | 
|  | ; MAINLINE:   mrs r1, faultmask_ns | 
|  | ; MAINLINE:   mrs r1, control_ns | 
|  | ; MAINLINE:   mrs r1, sp_ns | 
|  | ; MAINLINE:   mrs r1, basepri_max_ns | 
|  |  | 
|  | %0 = call i32 @llvm.read_register.i32(metadata !0) | 
|  | %1 = call i32 @llvm.read_register.i32(metadata !4) | 
|  | %add1 = add i32 %1, %0 | 
|  | %2 = call i32 @llvm.read_register.i32(metadata !8) | 
|  | %add2 = add i32 %add1, %2 | 
|  | %3 = call i32 @llvm.read_register.i32(metadata !12) | 
|  | %add3 = add i32 %add2, %3 | 
|  | %4 = call i32 @llvm.read_register.i32(metadata !16) | 
|  | %add4 = add i32 %add3, %4 | 
|  | %5 = call i32 @llvm.read_register.i32(metadata !17) | 
|  | %add5 = add i32 %add4, %5 | 
|  | %6 = call i32 @llvm.read_register.i32(metadata !18) | 
|  | %add6 = add i32 %add5, %6 | 
|  | %7 = call i32 @llvm.read_register.i32(metadata !19) | 
|  | %add7 = add i32 %add6, %7 | 
|  | %8 = call i32 @llvm.read_register.i32(metadata !20) | 
|  | %add8 = add i32 %add7, %8 | 
|  | %9 = call i32 @llvm.read_register.i32(metadata !21) | 
|  | %add9 = add i32 %add8, %9 | 
|  | %10 = call i32 @llvm.read_register.i32(metadata !22) | 
|  | %add10 = add i32 %add9, %10 | 
|  | %11 = call i32 @llvm.read_register.i32(metadata !23) | 
|  | %add11 = add i32 %add10, %11 | 
|  | %12 = call i32 @llvm.read_register.i32(metadata !24) | 
|  | %add12 = add i32 %add11, %12 | 
|  | %13 = call i32 @llvm.read_register.i32(metadata !25) | 
|  | %add13 = add i32 %add12, %13 | 
|  | %14 = call i32 @llvm.read_register.i32(metadata !26) | 
|  | %add14 = add i32 %add13, %14 | 
|  | %15 = call i32 @llvm.read_register.i32(metadata !27) | 
|  | %add15 = add i32 %add14, %15 | 
|  | %16 = call i32 @llvm.read_register.i32(metadata !28) | 
|  | %add16 = add i32 %add15, %16 | 
|  | %17 = call i32 @llvm.read_register.i32(metadata !29) | 
|  | %add17 = add i32 %add16, %17 | 
|  | %18 = call i32 @llvm.read_register.i32(metadata !30) | 
|  | %add18 = add i32 %add17, %18 | 
|  | %19 = call i32 @llvm.read_register.i32(metadata !31) | 
|  | %add19 = add i32 %add18, %19 | 
|  | %20 = call i32 @llvm.read_register.i32(metadata !32) | 
|  | %add20 = add i32 %add19, %20 | 
|  | %21 = call i32 @llvm.read_register.i32(metadata !33) | 
|  | %add21 = add i32 %add20, %21 | 
|  | %22 = call i32 @llvm.read_register.i32(metadata !34) | 
|  | %add22 = add i32 %add21, %22 | 
|  | %23 = call i32 @llvm.read_register.i32(metadata !35) | 
|  | %add23 = add i32 %add22, %23 | 
|  | %24 = call i32 @llvm.read_register.i32(metadata !36) | 
|  | %add24 = add i32 %add23, %24 | 
|  | %25 = call i32 @llvm.read_register.i32(metadata !37) | 
|  | %add25 = add i32 %add24, %25 | 
|  | ret i32 %add25 | 
|  | } | 
|  |  | 
|  | define void @write_mclass_registers(i32 %x) nounwind { | 
|  | entry: | 
|  | ; MAINLINE-LABEL: write_mclass_registers: | 
|  | ; MAINLINE:   msr apsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr apsr_nzcvq, r0 | 
|  | ; MAINLINE:   msr apsr_g, r0 | 
|  | ; MAINLINE:   msr apsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr iapsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr iapsr_nzcvq, r0 | 
|  | ; MAINLINE:   msr iapsr_g, r0 | 
|  | ; MAINLINE:   msr iapsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr eapsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr eapsr_nzcvq, r0 | 
|  | ; MAINLINE:   msr eapsr_g, r0 | 
|  | ; MAINLINE:   msr eapsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr xpsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr xpsr_nzcvq, r0 | 
|  | ; MAINLINE:   msr xpsr_g, r0 | 
|  | ; MAINLINE:   msr xpsr_nzcvqg, r0 | 
|  | ; MAINLINE:   msr ipsr, r0 | 
|  | ; MAINLINE:   msr epsr, r0 | 
|  | ; MAINLINE:   msr iepsr, r0 | 
|  | ; MAINLINE:   msr msp, r0 | 
|  | ; MAINLINE:   msr psp, r0 | 
|  | ; MAINLINE:   msr primask, r0 | 
|  | ; MAINLINE:   msr basepri, r0 | 
|  | ; MAINLINE:   msr basepri_max, r0 | 
|  | ; MAINLINE:   msr faultmask, r0 | 
|  | ; MAINLINE:   msr control, r0 | 
|  | ; MAINLINE:   msr msplim, r0 | 
|  | ; MAINLINE:   msr psplim, r0 | 
|  | ; MAINLINE:   msr msp_ns, r0 | 
|  | ; MAINLINE:   msr psp_ns, r0 | 
|  | ; MAINLINE:   msr msplim_ns, r0 | 
|  | ; MAINLINE:   msr psplim_ns, r0 | 
|  | ; MAINLINE:   msr primask_ns, r0 | 
|  | ; MAINLINE:   msr basepri_ns, r0 | 
|  | ; MAINLINE:   msr faultmask_ns, r0 | 
|  | ; MAINLINE:   msr control_ns, r0 | 
|  | ; MAINLINE:   msr sp_ns, r0 | 
|  | ; MAINLINE:   msr basepri_max_ns, r0 | 
|  |  | 
|  | call void @llvm.write_register.i32(metadata !0, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !1, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !2, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !3, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !4, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !5, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !6, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !7, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !8, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !9, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !10, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !11, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !12, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !13, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !14, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !15, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !16, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !17, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !18, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !19, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !20, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !21, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !22, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !23, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !24, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !25, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !26, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !27, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !28, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !29, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !30, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !31, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !32, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !33, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !34, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !35, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !36, i32 %x) | 
|  | call void @llvm.write_register.i32(metadata !37, i32 %x) | 
|  | ret void | 
|  | } | 
|  |  | 
|  | declare i32 @llvm.read_register.i32(metadata) nounwind | 
|  | declare void @llvm.write_register.i32(metadata, i32) nounwind | 
|  |  | 
|  | !0 = !{!"apsr"} | 
|  | !1 = !{!"apsr_nzcvq"} | 
|  | !2 = !{!"apsr_g"} | 
|  | !3 = !{!"apsr_nzcvqg"} | 
|  | !4 = !{!"iapsr"} | 
|  | !5 = !{!"iapsr_nzcvq"} | 
|  | !6 = !{!"iapsr_g"} | 
|  | !7 = !{!"iapsr_nzcvqg"} | 
|  | !8 = !{!"eapsr"} | 
|  | !9 = !{!"eapsr_nzcvq"} | 
|  | !10 = !{!"eapsr_g"} | 
|  | !11 = !{!"eapsr_nzcvqg"} | 
|  | !12 = !{!"xpsr"} | 
|  | !13 = !{!"xpsr_nzcvq"} | 
|  | !14 = !{!"xpsr_g"} | 
|  | !15 = !{!"xpsr_nzcvqg"} | 
|  | !16 = !{!"ipsr"} | 
|  | !17 = !{!"epsr"} | 
|  | !18 = !{!"iepsr"} | 
|  | !19 = !{!"msp"} | 
|  | !20 = !{!"psp"} | 
|  | !21 = !{!"primask"} | 
|  | !22 = !{!"basepri"} | 
|  | !23 = !{!"basepri_max"} | 
|  | !24 = !{!"faultmask"} | 
|  | !25 = !{!"control"} | 
|  | !26 = !{!"msplim"} | 
|  | !27 = !{!"psplim"} | 
|  | !28 = !{!"msp_ns"} | 
|  | !29 = !{!"psp_ns"} | 
|  | !30 = !{!"msplim_ns"} | 
|  | !31 = !{!"psplim_ns"} | 
|  | !32 = !{!"primask_ns"} | 
|  | !33 = !{!"basepri_ns"} | 
|  | !34 = !{!"faultmask_ns"} | 
|  | !35 = !{!"control_ns"} | 
|  | !36 = !{!"sp_ns"} | 
|  | !37 = !{!"basepri_max_ns"} | 
|  |  |