14f79f96fSKit Barton; Check handling of the mftb instruction. 24f79f96fSKit Barton; For CPUs 601 and pwr3, the mftb instruction should be emitted. 34f79f96fSKit Barton; On all other CPUs (including generic, ppc, ppc64), the mfspr instruction 44f79f96fSKit Barton; should be used instead. There should no longer be a deprecated warning 54f79f96fSKit Barton; message emittedfor this instruction for any CPU. 64f79f96fSKit Barton 7*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s 2>&1 \ 84f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR 9*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s 2>&1 \ 104f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR 11*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s 2>&1 \ 124f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR 13*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu < %s 2>&1 \ 144f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR 15*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=ppc < %s 2>&1 \ 164f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR 17*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=601 < %s 2>&1 \ 184f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFTB 19*a538b0f0SEhsan Amiri; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=pwr3 < %s 2>&1 \ 204f79f96fSKit Barton; RUN: | FileCheck %s --check-prefix=CHECK-MFTB 214f79f96fSKit Barton 224f79f96fSKit Barton; CHECK-MFSPR-NOT: warning: deprecated 234f79f96fSKit Barton; CHECK-MFTB-NOT: warning: deprecated 244f79f96fSKit Barton 254f79f96fSKit Bartondefine i32 @get_time() { 264f79f96fSKit Barton %time = call i32 asm "mftb $0, 268", "=r"() 274f79f96fSKit Barton ret i32 %time 284f79f96fSKit Barton; CHECK-MFSPR-LABEL: @get_time 294f79f96fSKit Barton; CHECK-MFSPR: mfspr 3, 268 304f79f96fSKit Barton; CHECK-MFSPR: blr 314f79f96fSKit Barton 324f79f96fSKit Barton; CHECK-MFTB-LABEL: @get_time 334f79f96fSKit Barton; CHECK-MFTB: mftb 3, 268 344f79f96fSKit Barton; CHECK-MFTB: blr 354f79f96fSKit Barton} 364f79f96fSKit Barton 374f79f96fSKit Bartondefine i32 @get_timeu() { 384f79f96fSKit Barton %time = call i32 asm "mftb $0, 269", "=r"() 394f79f96fSKit Barton ret i32 %time 404f79f96fSKit Barton; CHECK-MFSPR-LABEL: @get_timeu 414f79f96fSKit Barton; CHECK-MFSPR: mfspr 3, 269 424f79f96fSKit Barton; CHECK-MFSPR: blr 434f79f96fSKit Barton 444f79f96fSKit Barton; CHECK-MFTB-LABEL: @get_timeu 454f79f96fSKit Barton; CHECK-MFTB: mftbu 3 464f79f96fSKit Barton; CHECK-MFTB: blr 474f79f96fSKit Barton} 484f79f96fSKit Barton 494f79f96fSKit Bartondefine i32 @get_time_e() { 504f79f96fSKit Barton %time = call i32 asm "mftb $0", "=r"() 514f79f96fSKit Barton ret i32 %time 524f79f96fSKit Barton; CHECK-MFSPR-LABEL: @get_time_e 534f79f96fSKit Barton; CHECK-MFSPR: mfspr 3, 268 544f79f96fSKit Barton; CHECK-MFSPR: blr 554f79f96fSKit Barton 564f79f96fSKit Barton; CHECK-MFTB-LABEL: @get_time_e 574f79f96fSKit Barton; CHECK-MFTB: mftb 3, 268 584f79f96fSKit Barton; CHECK-MFTB: blr 594f79f96fSKit Barton} 604f79f96fSKit Barton 614f79f96fSKit Bartondefine i32 @get_timeu_e() { 624f79f96fSKit Barton %time = call i32 asm "mftbu $0", "=r"() 634f79f96fSKit Barton ret i32 %time 644f79f96fSKit Barton; CHECK-MFSPR-LABEL: @get_timeu_e 654f79f96fSKit Barton; CHECK-MFSPR: mfspr 3, 269 664f79f96fSKit Barton; CHECK-MFSPR: blr 674f79f96fSKit Barton 684f79f96fSKit Barton; CHECK-MFTB-LABEL: @get_timeu_e 694f79f96fSKit Barton; CHECK-MFTB: mftbu 3 704f79f96fSKit Barton; CHECK-MFTB: blr 714f79f96fSKit Barton} 724f79f96fSKit Barton 73