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llvm-project/llvm/test/CodeGen/PowerPC/mftb.ll

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Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; Check handling of the mftb instruction.
; For CPUs 601 and pwr3, the mftb instruction should be emitted.
; On all other CPUs (including generic, ppc, ppc64), the mfspr instruction
; should be used instead. There should no longer be a deprecated warning
; message emittedfor this instruction for any CPU.
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=ppc < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=601 < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFTB
Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -mcpu=pwr3 < %s 2>&1 \
Properly handle the mftb instruction. The mftb instruction was incorrectly marked as deprecated in the PPC Backend. Instead, it should not be treated as deprecated, but rather be implemented using the mfspr instruction. A similar patch was put into GCC last year. Details can be found at: https://sourceware.org/ml/binutils/2014-11/msg00383.html. This change will replace instances of the mftb instruction with the mfspr instruction for all CPUs except 601 and pwr3. This will also be the default behaviour. Additional details can be found in: https://llvm.org/bugs/show_bug.cgi?id=23680 Phabricator review: http://reviews.llvm.org/D10419 llvm-svn: 239827
2015-06-17 00:01:15 +08:00
; RUN: | FileCheck %s --check-prefix=CHECK-MFTB
; CHECK-MFSPR-NOT: warning: deprecated
; CHECK-MFTB-NOT: warning: deprecated
define i32 @get_time() {
%time = call i32 asm "mftb $0, 268", "=r"()
ret i32 %time
; CHECK-MFSPR-LABEL: @get_time
; CHECK-MFSPR: mfspr 3, 268
; CHECK-MFSPR: blr
; CHECK-MFTB-LABEL: @get_time
; CHECK-MFTB: mftb 3, 268
; CHECK-MFTB: blr
}
define i32 @get_timeu() {
%time = call i32 asm "mftb $0, 269", "=r"()
ret i32 %time
; CHECK-MFSPR-LABEL: @get_timeu
; CHECK-MFSPR: mfspr 3, 269
; CHECK-MFSPR: blr
; CHECK-MFTB-LABEL: @get_timeu
; CHECK-MFTB: mftbu 3
; CHECK-MFTB: blr
}
define i32 @get_time_e() {
%time = call i32 asm "mftb $0", "=r"()
ret i32 %time
; CHECK-MFSPR-LABEL: @get_time_e
; CHECK-MFSPR: mfspr 3, 268
; CHECK-MFSPR: blr
; CHECK-MFTB-LABEL: @get_time_e
; CHECK-MFTB: mftb 3, 268
; CHECK-MFTB: blr
}
define i32 @get_timeu_e() {
%time = call i32 asm "mftbu $0", "=r"()
ret i32 %time
; CHECK-MFSPR-LABEL: @get_timeu_e
; CHECK-MFSPR: mfspr 3, 269
; CHECK-MFSPR: blr
; CHECK-MFTB-LABEL: @get_timeu_e
; CHECK-MFTB: mftbu 3
; CHECK-MFTB: blr
}